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-rw-r--r--lib/compiler-rt/LICENSE.TXT91
-rw-r--r--lib/compiler-rt/builtins/arm/aeabi_ldivmod.S45
-rw-r--r--lib/compiler-rt/builtins/arm/aeabi_memcpy.S29
-rw-r--r--lib/compiler-rt/builtins/arm/aeabi_uldivmod.S45
-rw-r--r--lib/compiler-rt/builtins/assembly.h292
-rw-r--r--lib/compiler-rt/builtins/ctzdi2.c35
-rw-r--r--lib/compiler-rt/builtins/divdi3.c22
-rw-r--r--lib/compiler-rt/builtins/divmoddi4.c28
-rw-r--r--lib/compiler-rt/builtins/int_div_impl.inc95
-rw-r--r--lib/compiler-rt/builtins/int_endianness.h114
-rw-r--r--lib/compiler-rt/builtins/int_lib.h171
-rw-r--r--lib/compiler-rt/builtins/int_math.h98
-rw-r--r--lib/compiler-rt/builtins/int_types.h198
-rw-r--r--lib/compiler-rt/builtins/int_util.h47
-rw-r--r--lib/compiler-rt/builtins/lshrdi3.c38
-rw-r--r--lib/compiler-rt/builtins/popcountdi2.c32
-rw-r--r--lib/compiler-rt/builtins/popcountsi2.c29
-rw-r--r--lib/compiler-rt/builtins/udivmoddi4.c200
-rw-r--r--lib/compiler-rt/compiler-rt.mk43
19 files changed, 1652 insertions, 0 deletions
diff --git a/lib/compiler-rt/LICENSE.TXT b/lib/compiler-rt/LICENSE.TXT
new file mode 100644
index 0000000..a17dc12
--- /dev/null
+++ b/lib/compiler-rt/LICENSE.TXT
@@ -0,0 +1,91 @@
+==============================================================================
+compiler_rt License
+==============================================================================
+
+The compiler_rt library is dual licensed under both the University of Illinois
+"BSD-Like" license and the MIT license. As a user of this code you may choose
+to use it under either license. As a contributor, you agree to allow your code
+to be used under both.
+
+Full text of the relevant licenses is included below.
+
+==============================================================================
+
+University of Illinois/NCSA
+Open Source License
+
+Copyright (c) 2009-2016 by the contributors listed in CREDITS.TXT
+
+All rights reserved.
+
+Developed by:
+
+ LLVM Team
+
+ University of Illinois at Urbana-Champaign
+
+ http://llvm.org
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal with
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+ * Redistributions of source code must retain the above copyright notice,
+ this list of conditions and the following disclaimers.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimers in the
+ documentation and/or other materials provided with the distribution.
+
+ * Neither the names of the LLVM Team, University of Illinois at
+ Urbana-Champaign, nor the names of its contributors may be used to
+ endorse or promote products derived from this Software without specific
+ prior written permission.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE
+SOFTWARE.
+
+==============================================================================
+
+Copyright (c) 2009-2015 by the contributors listed in CREDITS.TXT
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+
+==============================================================================
+Copyrights and Licenses for Third Party Software Distributed with LLVM:
+==============================================================================
+The LLVM software contains code written by third parties. Such software will
+have its own individual LICENSE.TXT file in the directory in which it appears.
+This file will describe the copyrights, license, and restrictions which apply
+to that code.
+
+The disclaimer of warranty in the University of Illinois Open Source License
+applies to all code in the LLVM Distribution, and nothing in any of the
+other licenses gives permission to use the names of the LLVM Team or the
+University of Illinois to endorse or promote products derived from this
+Software.
+
diff --git a/lib/compiler-rt/builtins/arm/aeabi_ldivmod.S b/lib/compiler-rt/builtins/arm/aeabi_ldivmod.S
new file mode 100644
index 0000000..d0d06be
--- /dev/null
+++ b/lib/compiler-rt/builtins/arm/aeabi_ldivmod.S
@@ -0,0 +1,45 @@
+//===-- aeabi_ldivmod.S - EABI ldivmod implementation ---------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+// struct { int64_t quot, int64_t rem}
+// __aeabi_ldivmod(int64_t numerator, int64_t denominator) {
+// int64_t rem, quot;
+// quot = __divmoddi4(numerator, denominator, &rem);
+// return {quot, rem};
+// }
+
+#if defined(__MINGW32__)
+#define __aeabi_ldivmod __rt_sdiv64
+#endif
+
+ .syntax unified
+ .p2align 2
+DEFINE_COMPILERRT_FUNCTION(__aeabi_ldivmod)
+ push {r6, lr}
+ sub sp, sp, #16
+ add r6, sp, #8
+ str r6, [sp]
+#if defined(__MINGW32__)
+ movs r6, r0
+ movs r0, r2
+ movs r2, r6
+ movs r6, r1
+ movs r1, r3
+ movs r3, r6
+#endif
+ bl SYMBOL_NAME(__divmoddi4)
+ ldr r2, [sp, #8]
+ ldr r3, [sp, #12]
+ add sp, sp, #16
+ pop {r6, pc}
+END_COMPILERRT_FUNCTION(__aeabi_ldivmod)
+
+NO_EXEC_STACK_DIRECTIVE
+
diff --git a/lib/compiler-rt/builtins/arm/aeabi_memcpy.S b/lib/compiler-rt/builtins/arm/aeabi_memcpy.S
new file mode 100644
index 0000000..93e1b05
--- /dev/null
+++ b/lib/compiler-rt/builtins/arm/aeabi_memcpy.S
@@ -0,0 +1,29 @@
+//===-- aeabi_memcpy.S - EABI memcpy implementation -----------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+// void __aeabi_memcpy(void *dest, void *src, size_t n) { memcpy(dest, src, n); }
+
+ .syntax unified
+ .p2align 2
+DEFINE_COMPILERRT_FUNCTION(__aeabi_memcpy)
+#ifdef USE_THUMB_1
+ push {r7, lr}
+ bl memcpy
+ pop {r7, pc}
+#else
+ b memcpy
+#endif
+END_COMPILERRT_FUNCTION(__aeabi_memcpy)
+
+DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memcpy4, __aeabi_memcpy)
+DEFINE_AEABI_FUNCTION_ALIAS(__aeabi_memcpy8, __aeabi_memcpy)
+
+NO_EXEC_STACK_DIRECTIVE
+
diff --git a/lib/compiler-rt/builtins/arm/aeabi_uldivmod.S b/lib/compiler-rt/builtins/arm/aeabi_uldivmod.S
new file mode 100644
index 0000000..4fc9770
--- /dev/null
+++ b/lib/compiler-rt/builtins/arm/aeabi_uldivmod.S
@@ -0,0 +1,45 @@
+//===-- aeabi_uldivmod.S - EABI uldivmod implementation -------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+// struct { uint64_t quot, uint64_t rem}
+// __aeabi_uldivmod(uint64_t numerator, uint64_t denominator) {
+// uint64_t rem, quot;
+// quot = __udivmoddi4(numerator, denominator, &rem);
+// return {quot, rem};
+// }
+
+#if defined(__MINGW32__)
+#define __aeabi_uldivmod __rt_udiv64
+#endif
+
+ .syntax unified
+ .p2align 2
+DEFINE_COMPILERRT_FUNCTION(__aeabi_uldivmod)
+ push {r6, lr}
+ sub sp, sp, #16
+ add r6, sp, #8
+ str r6, [sp]
+#if defined(__MINGW32__)
+ movs r6, r0
+ movs r0, r2
+ movs r2, r6
+ movs r6, r1
+ movs r1, r3
+ movs r3, r6
+#endif
+ bl SYMBOL_NAME(__udivmoddi4)
+ ldr r2, [sp, #8]
+ ldr r3, [sp, #12]
+ add sp, sp, #16
+ pop {r6, pc}
+END_COMPILERRT_FUNCTION(__aeabi_uldivmod)
+
+NO_EXEC_STACK_DIRECTIVE
+
diff --git a/lib/compiler-rt/builtins/assembly.h b/lib/compiler-rt/builtins/assembly.h
new file mode 100644
index 0000000..69a3d86
--- /dev/null
+++ b/lib/compiler-rt/builtins/assembly.h
@@ -0,0 +1,292 @@
+//===-- assembly.h - compiler-rt assembler support macros -----------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines macros for use in compiler-rt assembler source.
+// This file is not part of the interface of this library.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef COMPILERRT_ASSEMBLY_H
+#define COMPILERRT_ASSEMBLY_H
+
+#if defined(__linux__) && defined(__CET__)
+#if __has_include(<cet.h>)
+#include <cet.h>
+#endif
+#endif
+
+#if defined(__APPLE__) && defined(__aarch64__)
+#define SEPARATOR %%
+#else
+#define SEPARATOR ;
+#endif
+
+#if defined(__APPLE__)
+#define HIDDEN(name) .private_extern name
+#define LOCAL_LABEL(name) L_##name
+// tell linker it can break up file at label boundaries
+#define FILE_LEVEL_DIRECTIVE .subsections_via_symbols
+#define SYMBOL_IS_FUNC(name)
+#define CONST_SECTION .const
+
+#define NO_EXEC_STACK_DIRECTIVE
+
+#elif defined(__ELF__)
+
+#define HIDDEN(name) .hidden name
+#define LOCAL_LABEL(name) .L_##name
+#define FILE_LEVEL_DIRECTIVE
+#if defined(__arm__) || defined(__aarch64__)
+#define SYMBOL_IS_FUNC(name) .type name,%function
+#else
+#define SYMBOL_IS_FUNC(name) .type name,@function
+#endif
+#define CONST_SECTION .section .rodata
+
+#if defined(__GNU__) || defined(__FreeBSD__) || defined(__Fuchsia__) || \
+ defined(__linux__)
+#define NO_EXEC_STACK_DIRECTIVE .section .note.GNU-stack,"",%progbits
+#else
+#define NO_EXEC_STACK_DIRECTIVE
+#endif
+
+#else // !__APPLE__ && !__ELF__
+
+#define HIDDEN(name)
+#define LOCAL_LABEL(name) .L ## name
+#define FILE_LEVEL_DIRECTIVE
+#define SYMBOL_IS_FUNC(name) \
+ .def name SEPARATOR \
+ .scl 2 SEPARATOR \
+ .type 32 SEPARATOR \
+ .endef
+#define CONST_SECTION .section .rdata,"rd"
+
+#define NO_EXEC_STACK_DIRECTIVE
+
+#endif
+
+#if defined(__arm__) || defined(__aarch64__)
+#define FUNC_ALIGN \
+ .text SEPARATOR \
+ .balign 16 SEPARATOR
+#else
+#define FUNC_ALIGN
+#endif
+
+// BTI and PAC gnu property note
+#define NT_GNU_PROPERTY_TYPE_0 5
+#define GNU_PROPERTY_AARCH64_FEATURE_1_AND 0xc0000000
+#define GNU_PROPERTY_AARCH64_FEATURE_1_BTI 1
+#define GNU_PROPERTY_AARCH64_FEATURE_1_PAC 2
+
+#if defined(__ARM_FEATURE_BTI_DEFAULT)
+#define BTI_FLAG GNU_PROPERTY_AARCH64_FEATURE_1_BTI
+#else
+#define BTI_FLAG 0
+#endif
+
+#if __ARM_FEATURE_PAC_DEFAULT & 3
+#define PAC_FLAG GNU_PROPERTY_AARCH64_FEATURE_1_PAC
+#else
+#define PAC_FLAG 0
+#endif
+
+#define GNU_PROPERTY(type, value) \
+ .pushsection .note.gnu.property, "a" SEPARATOR \
+ .p2align 3 SEPARATOR \
+ .word 4 SEPARATOR \
+ .word 16 SEPARATOR \
+ .word NT_GNU_PROPERTY_TYPE_0 SEPARATOR \
+ .asciz "GNU" SEPARATOR \
+ .word type SEPARATOR \
+ .word 4 SEPARATOR \
+ .word value SEPARATOR \
+ .word 0 SEPARATOR \
+ .popsection
+
+#if BTI_FLAG != 0
+#define BTI_C hint #34
+#define BTI_J hint #36
+#else
+#define BTI_C
+#define BTI_J
+#endif
+
+#if (BTI_FLAG | PAC_FLAG) != 0
+#define GNU_PROPERTY_BTI_PAC \
+ GNU_PROPERTY(GNU_PROPERTY_AARCH64_FEATURE_1_AND, BTI_FLAG | PAC_FLAG)
+#else
+#define GNU_PROPERTY_BTI_PAC
+#endif
+
+#if defined(__clang__) || defined(__GCC_HAVE_DWARF2_CFI_ASM)
+#define CFI_START .cfi_startproc
+#define CFI_END .cfi_endproc
+#else
+#define CFI_START
+#define CFI_END
+#endif
+
+#if defined(__arm__)
+
+// Determine actual [ARM][THUMB[1][2]] ISA using compiler predefined macros:
+// - for '-mthumb -march=armv6' compiler defines '__thumb__'
+// - for '-mthumb -march=armv7' compiler defines '__thumb__' and '__thumb2__'
+#if defined(__thumb2__) || defined(__thumb__)
+#define DEFINE_CODE_STATE .thumb SEPARATOR
+#define DECLARE_FUNC_ENCODING .thumb_func SEPARATOR
+#if defined(__thumb2__)
+#define USE_THUMB_2
+#define IT(cond) it cond
+#define ITT(cond) itt cond
+#define ITE(cond) ite cond
+#else
+#define USE_THUMB_1
+#define IT(cond)
+#define ITT(cond)
+#define ITE(cond)
+#endif // defined(__thumb__2)
+#else // !defined(__thumb2__) && !defined(__thumb__)
+#define DEFINE_CODE_STATE .arm SEPARATOR
+#define DECLARE_FUNC_ENCODING
+#define IT(cond)
+#define ITT(cond)
+#define ITE(cond)
+#endif
+
+#if defined(USE_THUMB_1) && defined(USE_THUMB_2)
+#error "USE_THUMB_1 and USE_THUMB_2 can't be defined together."
+#endif
+
+#if defined(__ARM_ARCH_4T__) || __ARM_ARCH >= 5
+#define ARM_HAS_BX
+#endif
+#if !defined(__ARM_FEATURE_CLZ) && !defined(USE_THUMB_1) && \
+ (__ARM_ARCH >= 6 || (__ARM_ARCH == 5 && !defined(__ARM_ARCH_5__)))
+#define __ARM_FEATURE_CLZ
+#endif
+
+#ifdef ARM_HAS_BX
+#define JMP(r) bx r
+#define JMPc(r, c) bx##c r
+#else
+#define JMP(r) mov pc, r
+#define JMPc(r, c) mov##c pc, r
+#endif
+
+// pop {pc} can't switch Thumb mode on ARMv4T
+#if __ARM_ARCH >= 5
+#define POP_PC() pop {pc}
+#else
+#define POP_PC() \
+ pop {ip}; \
+ JMP(ip)
+#endif
+
+#if defined(USE_THUMB_2)
+#define WIDE(op) op.w
+#else
+#define WIDE(op) op
+#endif
+#else // !defined(__arm)
+#define DECLARE_FUNC_ENCODING
+#define DEFINE_CODE_STATE
+#endif
+
+#define GLUE2_(a, b) a##b
+#define GLUE(a, b) GLUE2_(a, b)
+#define GLUE2(a, b) GLUE2_(a, b)
+#define GLUE3_(a, b, c) a##b##c
+#define GLUE3(a, b, c) GLUE3_(a, b, c)
+#define GLUE4_(a, b, c, d) a##b##c##d
+#define GLUE4(a, b, c, d) GLUE4_(a, b, c, d)
+
+#define SYMBOL_NAME(name) GLUE(__USER_LABEL_PREFIX__, name)
+
+#ifdef VISIBILITY_HIDDEN
+#define DECLARE_SYMBOL_VISIBILITY(name) \
+ HIDDEN(SYMBOL_NAME(name)) SEPARATOR
+#define DECLARE_SYMBOL_VISIBILITY_UNMANGLED(name) \
+ HIDDEN(name) SEPARATOR
+#else
+#define DECLARE_SYMBOL_VISIBILITY(name)
+#define DECLARE_SYMBOL_VISIBILITY_UNMANGLED(name)
+#endif
+
+#define DEFINE_COMPILERRT_FUNCTION(name) \
+ DEFINE_CODE_STATE \
+ FILE_LEVEL_DIRECTIVE SEPARATOR \
+ .globl SYMBOL_NAME(name) SEPARATOR \
+ SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
+ DECLARE_SYMBOL_VISIBILITY(name) \
+ DECLARE_FUNC_ENCODING \
+ SYMBOL_NAME(name):
+
+#define DEFINE_COMPILERRT_THUMB_FUNCTION(name) \
+ DEFINE_CODE_STATE \
+ FILE_LEVEL_DIRECTIVE SEPARATOR \
+ .globl SYMBOL_NAME(name) SEPARATOR \
+ SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
+ DECLARE_SYMBOL_VISIBILITY(name) SEPARATOR \
+ .thumb_func SEPARATOR \
+ SYMBOL_NAME(name):
+
+#define DEFINE_COMPILERRT_PRIVATE_FUNCTION(name) \
+ DEFINE_CODE_STATE \
+ FILE_LEVEL_DIRECTIVE SEPARATOR \
+ .globl SYMBOL_NAME(name) SEPARATOR \
+ SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
+ HIDDEN(SYMBOL_NAME(name)) SEPARATOR \
+ DECLARE_FUNC_ENCODING \
+ SYMBOL_NAME(name):
+
+#define DEFINE_COMPILERRT_PRIVATE_FUNCTION_UNMANGLED(name) \
+ DEFINE_CODE_STATE \
+ .globl name SEPARATOR \
+ SYMBOL_IS_FUNC(name) SEPARATOR \
+ HIDDEN(name) SEPARATOR \
+ DECLARE_FUNC_ENCODING \
+ name:
+
+#define DEFINE_COMPILERRT_OUTLINE_FUNCTION_UNMANGLED(name) \
+ DEFINE_CODE_STATE \
+ FUNC_ALIGN \
+ .globl name SEPARATOR \
+ SYMBOL_IS_FUNC(name) SEPARATOR \
+ DECLARE_SYMBOL_VISIBILITY_UNMANGLED(name) SEPARATOR \
+ CFI_START SEPARATOR \
+ DECLARE_FUNC_ENCODING \
+ name: SEPARATOR BTI_C
+
+#define DEFINE_COMPILERRT_FUNCTION_ALIAS(name, target) \
+ .globl SYMBOL_NAME(name) SEPARATOR \
+ SYMBOL_IS_FUNC(SYMBOL_NAME(name)) SEPARATOR \
+ DECLARE_SYMBOL_VISIBILITY(SYMBOL_NAME(name)) SEPARATOR \
+ .set SYMBOL_NAME(name), SYMBOL_NAME(target) SEPARATOR
+
+#if defined(__ARM_EABI__)
+#define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name) \
+ DEFINE_COMPILERRT_FUNCTION_ALIAS(aeabi_name, name)
+#else
+#define DEFINE_AEABI_FUNCTION_ALIAS(aeabi_name, name)
+#endif
+
+#ifdef __ELF__
+#define END_COMPILERRT_FUNCTION(name) \
+ .size SYMBOL_NAME(name), . - SYMBOL_NAME(name)
+#define END_COMPILERRT_OUTLINE_FUNCTION(name) \
+ CFI_END SEPARATOR \
+ .size SYMBOL_NAME(name), . - SYMBOL_NAME(name)
+#else
+#define END_COMPILERRT_FUNCTION(name)
+#define END_COMPILERRT_OUTLINE_FUNCTION(name) \
+ CFI_END
+#endif
+
+#endif // COMPILERRT_ASSEMBLY_H
diff --git a/lib/compiler-rt/builtins/ctzdi2.c b/lib/compiler-rt/builtins/ctzdi2.c
new file mode 100644
index 0000000..26c908d
--- /dev/null
+++ b/lib/compiler-rt/builtins/ctzdi2.c
@@ -0,0 +1,35 @@
+//===-- ctzdi2.c - Implement __ctzdi2 -------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements __ctzdi2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+
+// Returns: the number of trailing 0-bits
+
+#if !defined(__clang__) && \
+ ((defined(__sparc__) && defined(__arch64__)) || defined(__mips64) || \
+ (defined(__riscv) && __SIZEOF_POINTER__ >= 8))
+// On 64-bit architectures with neither a native clz instruction nor a native
+// ctz instruction, gcc resolves __builtin_ctz to __ctzdi2 rather than
+// __ctzsi2, leading to infinite recursion.
+#define __builtin_ctz(a) __ctzsi2(a)
+extern int __ctzsi2(si_int);
+#endif
+
+// Precondition: a != 0
+
+COMPILER_RT_ABI int __ctzdi2(di_int a) {
+ dwords x;
+ x.all = a;
+ const si_int f = -(x.s.low == 0);
+ return ctzsi((x.s.high & f) | (x.s.low & ~f)) +
+ (f & ((si_int)(sizeof(si_int) * CHAR_BIT)));
+}
diff --git a/lib/compiler-rt/builtins/divdi3.c b/lib/compiler-rt/builtins/divdi3.c
new file mode 100644
index 0000000..d71e138
--- /dev/null
+++ b/lib/compiler-rt/builtins/divdi3.c
@@ -0,0 +1,22 @@
+//===-- divdi3.c - Implement __divdi3 -------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements __divdi3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+
+// Returns: a / b
+
+#define fixint_t di_int
+#define fixuint_t du_int
+#define COMPUTE_UDIV(a, b) __udivmoddi4((a), (b), (du_int *)0)
+#include "int_div_impl.inc"
+
+COMPILER_RT_ABI di_int __divdi3(di_int a, di_int b) { return __divXi3(a, b); }
diff --git a/lib/compiler-rt/builtins/divmoddi4.c b/lib/compiler-rt/builtins/divmoddi4.c
new file mode 100644
index 0000000..e7cbbb1
--- /dev/null
+++ b/lib/compiler-rt/builtins/divmoddi4.c
@@ -0,0 +1,28 @@
+//===-- divmoddi4.c - Implement __divmoddi4 -------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements __divmoddi4 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+
+// Returns: a / b, *rem = a % b
+
+COMPILER_RT_ABI di_int __divmoddi4(di_int a, di_int b, di_int *rem) {
+ const int bits_in_dword_m1 = (int)(sizeof(di_int) * CHAR_BIT) - 1;
+ di_int s_a = a >> bits_in_dword_m1; // s_a = a < 0 ? -1 : 0
+ di_int s_b = b >> bits_in_dword_m1; // s_b = b < 0 ? -1 : 0
+ a = (a ^ s_a) - s_a; // negate if s_a == -1
+ b = (b ^ s_b) - s_b; // negate if s_b == -1
+ s_b ^= s_a; // sign of quotient
+ du_int r;
+ di_int q = (__udivmoddi4(a, b, &r) ^ s_b) - s_b; // negate if s_b == -1
+ *rem = (r ^ s_a) - s_a; // negate if s_a == -1
+ return q;
+}
diff --git a/lib/compiler-rt/builtins/int_div_impl.inc b/lib/compiler-rt/builtins/int_div_impl.inc
new file mode 100644
index 0000000..dc1f97c
--- /dev/null
+++ b/lib/compiler-rt/builtins/int_div_impl.inc
@@ -0,0 +1,95 @@
+//===-- int_div_impl.inc - Integer division ---------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Helpers used by __udivsi3, __umodsi3, __udivdi3, and __umodsi3.
+//
+//===----------------------------------------------------------------------===//
+
+#define clz(a) (sizeof(a) == sizeof(unsigned long long) ? __builtin_clzll(a) : clzsi(a))
+
+// Adapted from Figure 3-40 of The PowerPC Compiler Writer's Guide
+static __inline fixuint_t __udivXi3(fixuint_t n, fixuint_t d) {
+ const unsigned N = sizeof(fixuint_t) * CHAR_BIT;
+ // d == 0 cases are unspecified.
+ unsigned sr = (d ? clz(d) : N) - (n ? clz(n) : N);
+ // 0 <= sr <= N - 1 or sr is very large.
+ if (sr > N - 1) // n < d
+ return 0;
+ if (sr == N - 1) // d == 1
+ return n;
+ ++sr;
+ // 1 <= sr <= N - 1. Shifts do not trigger UB.
+ fixuint_t r = n >> sr;
+ n <<= N - sr;
+ fixuint_t carry = 0;
+ for (; sr > 0; --sr) {
+ r = (r << 1) | (n >> (N - 1));
+ n = (n << 1) | carry;
+ // Branch-less version of:
+ // carry = 0;
+ // if (r >= d) r -= d, carry = 1;
+ const fixint_t s = (fixint_t)(d - r - 1) >> (N - 1);
+ carry = s & 1;
+ r -= d & s;
+ }
+ n = (n << 1) | carry;
+ return n;
+}
+
+// Mostly identical to __udivXi3 but the return values are different.
+static __inline fixuint_t __umodXi3(fixuint_t n, fixuint_t d) {
+ const unsigned N = sizeof(fixuint_t) * CHAR_BIT;
+ // d == 0 cases are unspecified.
+ unsigned sr = (d ? clz(d) : N) - (n ? clz(n) : N);
+ // 0 <= sr <= N - 1 or sr is very large.
+ if (sr > N - 1) // n < d
+ return n;
+ if (sr == N - 1) // d == 1
+ return 0;
+ ++sr;
+ // 1 <= sr <= N - 1. Shifts do not trigger UB.
+ fixuint_t r = n >> sr;
+ n <<= N - sr;
+ fixuint_t carry = 0;
+ for (; sr > 0; --sr) {
+ r = (r << 1) | (n >> (N - 1));
+ n = (n << 1) | carry;
+ // Branch-less version of:
+ // carry = 0;
+ // if (r >= d) r -= d, carry = 1;
+ const fixint_t s = (fixint_t)(d - r - 1) >> (N - 1);
+ carry = s & 1;
+ r -= d & s;
+ }
+ return r;
+}
+
+#ifdef COMPUTE_UDIV
+static __inline fixint_t __divXi3(fixint_t a, fixint_t b) {
+ const int N = (int)(sizeof(fixint_t) * CHAR_BIT) - 1;
+ fixint_t s_a = a >> N; // s_a = a < 0 ? -1 : 0
+ fixint_t s_b = b >> N; // s_b = b < 0 ? -1 : 0
+ fixuint_t a_u = (fixuint_t)(a ^ s_a) + (-s_a); // negate if s_a == -1
+ fixuint_t b_u = (fixuint_t)(b ^ s_b) + (-s_b); // negate if s_b == -1
+ s_a ^= s_b; // sign of quotient
+ return (COMPUTE_UDIV(a_u, b_u) ^ s_a) + (-s_a); // negate if s_a == -1
+}
+#endif // COMPUTE_UDIV
+
+#ifdef ASSIGN_UMOD
+static __inline fixint_t __modXi3(fixint_t a, fixint_t b) {
+ const int N = (int)(sizeof(fixint_t) * CHAR_BIT) - 1;
+ fixint_t s = b >> N; // s = b < 0 ? -1 : 0
+ fixuint_t b_u = (fixuint_t)(b ^ s) + (-s); // negate if s == -1
+ s = a >> N; // s = a < 0 ? -1 : 0
+ fixuint_t a_u = (fixuint_t)(a ^ s) + (-s); // negate if s == -1
+ fixuint_t res;
+ ASSIGN_UMOD(res, a_u, b_u);
+ return (res ^ s) + (-s); // negate if s == -1
+}
+#endif // ASSIGN_UMOD
diff --git a/lib/compiler-rt/builtins/int_endianness.h b/lib/compiler-rt/builtins/int_endianness.h
new file mode 100644
index 0000000..291c6b5
--- /dev/null
+++ b/lib/compiler-rt/builtins/int_endianness.h
@@ -0,0 +1,114 @@
+//===-- int_endianness.h - configuration header for compiler-rt -----------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a configuration header for compiler-rt.
+// This file is not part of the interface of this library.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef INT_ENDIANNESS_H
+#define INT_ENDIANNESS_H
+
+#if defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && \
+ defined(__ORDER_LITTLE_ENDIAN__)
+
+// Clang and GCC provide built-in endianness definitions.
+#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+#define _YUGA_LITTLE_ENDIAN 0
+#define _YUGA_BIG_ENDIAN 1
+#elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
+#define _YUGA_LITTLE_ENDIAN 1
+#define _YUGA_BIG_ENDIAN 0
+#endif // __BYTE_ORDER__
+
+#else // Compilers other than Clang or GCC.
+
+#if defined(__SVR4) && defined(__sun)
+#include <sys/byteorder.h>
+
+#if defined(_BIG_ENDIAN)
+#define _YUGA_LITTLE_ENDIAN 0
+#define _YUGA_BIG_ENDIAN 1
+#elif defined(_LITTLE_ENDIAN)
+#define _YUGA_LITTLE_ENDIAN 1
+#define _YUGA_BIG_ENDIAN 0
+#else // !_LITTLE_ENDIAN
+#error "unknown endianness"
+#endif // !_LITTLE_ENDIAN
+
+#endif // Solaris
+
+// ..
+
+#if defined(__FreeBSD__) || defined(__NetBSD__) || defined(__DragonFly__) || \
+ defined(__minix)
+#include <sys/endian.h>
+
+#if _BYTE_ORDER == _BIG_ENDIAN
+#define _YUGA_LITTLE_ENDIAN 0
+#define _YUGA_BIG_ENDIAN 1
+#elif _BYTE_ORDER == _LITTLE_ENDIAN
+#define _YUGA_LITTLE_ENDIAN 1
+#define _YUGA_BIG_ENDIAN 0
+#endif // _BYTE_ORDER
+
+#endif // *BSD
+
+#if defined(__OpenBSD__)
+#include <machine/endian.h>
+
+#if _BYTE_ORDER == _BIG_ENDIAN
+#define _YUGA_LITTLE_ENDIAN 0
+#define _YUGA_BIG_ENDIAN 1
+#elif _BYTE_ORDER == _LITTLE_ENDIAN
+#define _YUGA_LITTLE_ENDIAN 1
+#define _YUGA_BIG_ENDIAN 0
+#endif // _BYTE_ORDER
+
+#endif // OpenBSD
+
+// ..
+
+// Mac OSX has __BIG_ENDIAN__ or __LITTLE_ENDIAN__ automatically set by the
+// compiler (at least with GCC)
+#if defined(__APPLE__) || defined(__ellcc__)
+
+#ifdef __BIG_ENDIAN__
+#if __BIG_ENDIAN__
+#define _YUGA_LITTLE_ENDIAN 0
+#define _YUGA_BIG_ENDIAN 1
+#endif
+#endif // __BIG_ENDIAN__
+
+#ifdef __LITTLE_ENDIAN__
+#if __LITTLE_ENDIAN__
+#define _YUGA_LITTLE_ENDIAN 1
+#define _YUGA_BIG_ENDIAN 0
+#endif
+#endif // __LITTLE_ENDIAN__
+
+#endif // Mac OSX
+
+// ..
+
+#if defined(_WIN32)
+
+#define _YUGA_LITTLE_ENDIAN 1
+#define _YUGA_BIG_ENDIAN 0
+
+#endif // Windows
+
+#endif // Clang or GCC.
+
+// .
+
+#if !defined(_YUGA_LITTLE_ENDIAN) || !defined(_YUGA_BIG_ENDIAN)
+#error Unable to determine endian
+#endif // Check we found an endianness correctly.
+
+#endif // INT_ENDIANNESS_H
diff --git a/lib/compiler-rt/builtins/int_lib.h b/lib/compiler-rt/builtins/int_lib.h
new file mode 100644
index 0000000..fb791eb
--- /dev/null
+++ b/lib/compiler-rt/builtins/int_lib.h
@@ -0,0 +1,171 @@
+//===-- int_lib.h - configuration header for compiler-rt -----------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is a configuration header for compiler-rt.
+// This file is not part of the interface of this library.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef INT_LIB_H
+#define INT_LIB_H
+
+// Assumption: Signed integral is 2's complement.
+// Assumption: Right shift of signed negative is arithmetic shift.
+// Assumption: Endianness is little or big (not mixed).
+
+// ABI macro definitions
+
+#if __ARM_EABI__
+#ifdef COMPILER_RT_ARMHF_TARGET
+#define COMPILER_RT_ABI
+#else
+#define COMPILER_RT_ABI __attribute__((__pcs__("aapcs")))
+#endif
+#else
+#define COMPILER_RT_ABI
+#endif
+
+#define AEABI_RTABI __attribute__((__pcs__("aapcs")))
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#define ALWAYS_INLINE __forceinline
+#define NOINLINE __declspec(noinline)
+#define NORETURN __declspec(noreturn)
+#define UNUSED
+#else
+#define ALWAYS_INLINE __attribute__((always_inline))
+#define NOINLINE __attribute__((noinline))
+#define NORETURN __attribute__((noreturn))
+#define UNUSED __attribute__((unused))
+#endif
+
+#define STR(a) #a
+#define XSTR(a) STR(a)
+#define SYMBOL_NAME(name) XSTR(__USER_LABEL_PREFIX__) #name
+
+#if defined(__ELF__) || defined(__MINGW32__) || defined(__wasm__) || \
+ defined(_AIX)
+#define COMPILER_RT_ALIAS(name, aliasname) \
+ COMPILER_RT_ABI __typeof(name) aliasname __attribute__((__alias__(#name)));
+#elif defined(__APPLE__)
+#if defined(VISIBILITY_HIDDEN)
+#define COMPILER_RT_ALIAS_VISIBILITY(name) \
+ __asm__(".private_extern " SYMBOL_NAME(name));
+#else
+#define COMPILER_RT_ALIAS_VISIBILITY(name)
+#endif
+#define COMPILER_RT_ALIAS(name, aliasname) \
+ __asm__(".globl " SYMBOL_NAME(aliasname)); \
+ COMPILER_RT_ALIAS_VISIBILITY(aliasname) \
+ __asm__(SYMBOL_NAME(aliasname) " = " SYMBOL_NAME(name)); \
+ COMPILER_RT_ABI __typeof(name) aliasname;
+#elif defined(_WIN32)
+#define COMPILER_RT_ALIAS(name, aliasname)
+#else
+#error Unsupported target
+#endif
+
+#if (defined(__FreeBSD__) || defined(__NetBSD__)) && \
+ (defined(_KERNEL) || defined(_STANDALONE))
+//
+// Kernel and boot environment can't use normal headers,
+// so use the equivalent system headers.
+// NB: FreeBSD (and OpenBSD) deprecate machine/limits.h in
+// favour of sys/limits.h, so prefer the former, but fall
+// back on the latter if not available since NetBSD only has
+// the latter.
+//
+#if defined(__has_include) && __has_include(<sys/limits.h>)
+#include <sys/limits.h>
+#else
+#include <machine/limits.h>
+#endif
+#include <sys/stdint.h>
+#include <sys/types.h>
+#else
+// Include the standard compiler builtin headers we use functionality from.
+#include <float.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdint.h>
+#endif
+
+// Include the commonly used internal type definitions.
+#include "int_types.h"
+
+// Include internal utility function declarations.
+#include "int_util.h"
+
+COMPILER_RT_ABI int __paritysi2(si_int a);
+COMPILER_RT_ABI int __paritydi2(di_int a);
+
+COMPILER_RT_ABI di_int __divdi3(di_int a, di_int b);
+COMPILER_RT_ABI si_int __divsi3(si_int a, si_int b);
+COMPILER_RT_ABI su_int __udivsi3(su_int n, su_int d);
+
+COMPILER_RT_ABI su_int __udivmodsi4(su_int a, su_int b, su_int *rem);
+COMPILER_RT_ABI du_int __udivmoddi4(du_int a, du_int b, du_int *rem);
+#ifdef CRT_HAS_128BIT
+COMPILER_RT_ABI int __clzti2(ti_int a);
+COMPILER_RT_ABI tu_int __udivmodti4(tu_int a, tu_int b, tu_int *rem);
+#endif
+
+// Definitions for builtins unavailable on MSVC
+#if defined(_MSC_VER) && !defined(__clang__)
+#include <intrin.h>
+
+int __inline __builtin_ctz(uint32_t value) {
+ unsigned long trailing_zero = 0;
+ if (_BitScanForward(&trailing_zero, value))
+ return trailing_zero;
+ return 32;
+}
+
+int __inline __builtin_clz(uint32_t value) {
+ unsigned long leading_zero = 0;
+ if (_BitScanReverse(&leading_zero, value))
+ return 31 - leading_zero;
+ return 32;
+}
+
+#if defined(_M_ARM) || defined(_M_X64)
+int __inline __builtin_clzll(uint64_t value) {
+ unsigned long leading_zero = 0;
+ if (_BitScanReverse64(&leading_zero, value))
+ return 63 - leading_zero;
+ return 64;
+}
+#else
+int __inline __builtin_clzll(uint64_t value) {
+ if (value == 0)
+ return 64;
+ uint32_t msh = (uint32_t)(value >> 32);
+ uint32_t lsh = (uint32_t)(value & 0xFFFFFFFF);
+ if (msh != 0)
+ return __builtin_clz(msh);
+ return 32 + __builtin_clz(lsh);
+}
+#endif
+
+#define __builtin_clzl __builtin_clzll
+
+bool __inline __builtin_sadd_overflow(int x, int y, int *result) {
+ if ((x < 0) != (y < 0)) {
+ *result = x + y;
+ return false;
+ }
+ int tmp = (unsigned int)x + (unsigned int)y;
+ if ((tmp < 0) != (x < 0))
+ return true;
+ *result = tmp;
+ return false;
+}
+
+#endif // defined(_MSC_VER) && !defined(__clang__)
+
+#endif // INT_LIB_H
diff --git a/lib/compiler-rt/builtins/int_math.h b/lib/compiler-rt/builtins/int_math.h
new file mode 100644
index 0000000..48b9580
--- /dev/null
+++ b/lib/compiler-rt/builtins/int_math.h
@@ -0,0 +1,98 @@
+//===-- int_math.h - internal math inlines --------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is not part of the interface of this library.
+//
+// This file defines substitutes for the libm functions used in some of the
+// compiler-rt implementations, defined in such a way that there is not a direct
+// dependency on libm or math.h. Instead, we use the compiler builtin versions
+// where available. This reduces our dependencies on the system SDK by foisting
+// the responsibility onto the compiler.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef INT_MATH_H
+#define INT_MATH_H
+
+#ifndef __has_builtin
+#define __has_builtin(x) 0
+#endif
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#include <math.h>
+#include <stdlib.h>
+#endif
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#define CRT_INFINITY INFINITY
+#else
+#define CRT_INFINITY __builtin_huge_valf()
+#endif
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#define crt_isfinite(x) _finite((x))
+#define crt_isinf(x) !_finite((x))
+#define crt_isnan(x) _isnan((x))
+#else
+// Define crt_isfinite in terms of the builtin if available, otherwise provide
+// an alternate version in terms of our other functions. This supports some
+// versions of GCC which didn't have __builtin_isfinite.
+#if __has_builtin(__builtin_isfinite)
+#define crt_isfinite(x) __builtin_isfinite((x))
+#elif defined(__GNUC__)
+#define crt_isfinite(x) \
+ __extension__(({ \
+ __typeof((x)) x_ = (x); \
+ !crt_isinf(x_) && !crt_isnan(x_); \
+ }))
+#else
+#error "Do not know how to check for infinity"
+#endif // __has_builtin(__builtin_isfinite)
+#define crt_isinf(x) __builtin_isinf((x))
+#define crt_isnan(x) __builtin_isnan((x))
+#endif // _MSC_VER
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#define crt_copysign(x, y) copysign((x), (y))
+#define crt_copysignf(x, y) copysignf((x), (y))
+#define crt_copysignl(x, y) copysignl((x), (y))
+#else
+#define crt_copysign(x, y) __builtin_copysign((x), (y))
+#define crt_copysignf(x, y) __builtin_copysignf((x), (y))
+#define crt_copysignl(x, y) __builtin_copysignl((x), (y))
+#endif
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#define crt_fabs(x) fabs((x))
+#define crt_fabsf(x) fabsf((x))
+#define crt_fabsl(x) fabs((x))
+#else
+#define crt_fabs(x) __builtin_fabs((x))
+#define crt_fabsf(x) __builtin_fabsf((x))
+#define crt_fabsl(x) __builtin_fabsl((x))
+#endif
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#define crt_fmaxl(x, y) __max((x), (y))
+#else
+#define crt_fmaxl(x, y) __builtin_fmaxl((x), (y))
+#endif
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#define crt_logbl(x) logbl((x))
+#else
+#define crt_logbl(x) __builtin_logbl((x))
+#endif
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#define crt_scalbnl(x, y) scalbnl((x), (y))
+#else
+#define crt_scalbnl(x, y) __builtin_scalbnl((x), (y))
+#endif
+
+#endif // INT_MATH_H
diff --git a/lib/compiler-rt/builtins/int_types.h b/lib/compiler-rt/builtins/int_types.h
new file mode 100644
index 0000000..7a72de4
--- /dev/null
+++ b/lib/compiler-rt/builtins/int_types.h
@@ -0,0 +1,198 @@
+//===-- int_lib.h - configuration header for compiler-rt -----------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is not part of the interface of this library.
+//
+// This file defines various standard types, most importantly a number of unions
+// used to access parts of larger types.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef INT_TYPES_H
+#define INT_TYPES_H
+
+#include "int_endianness.h"
+
+// si_int is defined in Linux sysroot's asm-generic/siginfo.h
+#ifdef si_int
+#undef si_int
+#endif
+typedef int32_t si_int;
+typedef uint32_t su_int;
+#if UINT_MAX == 0xFFFFFFFF
+#define clzsi __builtin_clz
+#define ctzsi __builtin_ctz
+#elif ULONG_MAX == 0xFFFFFFFF
+#define clzsi __builtin_clzl
+#define ctzsi __builtin_ctzl
+#else
+#error could not determine appropriate clzsi macro for this system
+#endif
+
+typedef int64_t di_int;
+typedef uint64_t du_int;
+
+typedef union {
+ di_int all;
+ struct {
+#if _YUGA_LITTLE_ENDIAN
+ su_int low;
+ si_int high;
+#else
+ si_int high;
+ su_int low;
+#endif // _YUGA_LITTLE_ENDIAN
+ } s;
+} dwords;
+
+typedef union {
+ du_int all;
+ struct {
+#if _YUGA_LITTLE_ENDIAN
+ su_int low;
+ su_int high;
+#else
+ su_int high;
+ su_int low;
+#endif // _YUGA_LITTLE_ENDIAN
+ } s;
+} udwords;
+
+#if defined(__LP64__) || defined(__wasm__) || defined(__mips64) || \
+ defined(__riscv) || defined(_WIN64)
+#define CRT_HAS_128BIT
+#endif
+
+// MSVC doesn't have a working 128bit integer type. Users should really compile
+// compiler-rt with clang, but if they happen to be doing a standalone build for
+// asan or something else, disable the 128 bit parts so things sort of work.
+#if defined(_MSC_VER) && !defined(__clang__)
+#undef CRT_HAS_128BIT
+#endif
+
+#ifdef CRT_HAS_128BIT
+typedef int ti_int __attribute__((mode(TI)));
+typedef unsigned tu_int __attribute__((mode(TI)));
+
+typedef union {
+ ti_int all;
+ struct {
+#if _YUGA_LITTLE_ENDIAN
+ du_int low;
+ di_int high;
+#else
+ di_int high;
+ du_int low;
+#endif // _YUGA_LITTLE_ENDIAN
+ } s;
+} twords;
+
+typedef union {
+ tu_int all;
+ struct {
+#if _YUGA_LITTLE_ENDIAN
+ du_int low;
+ du_int high;
+#else
+ du_int high;
+ du_int low;
+#endif // _YUGA_LITTLE_ENDIAN
+ } s;
+} utwords;
+
+static __inline ti_int make_ti(di_int h, di_int l) {
+ twords r;
+ r.s.high = h;
+ r.s.low = l;
+ return r.all;
+}
+
+static __inline tu_int make_tu(du_int h, du_int l) {
+ utwords r;
+ r.s.high = h;
+ r.s.low = l;
+ return r.all;
+}
+
+#endif // CRT_HAS_128BIT
+
+// FreeBSD's boot environment does not support using floating-point and poisons
+// the float and double keywords.
+#if defined(__FreeBSD__) && defined(_STANDALONE)
+#define CRT_HAS_FLOATING_POINT 0
+#else
+#define CRT_HAS_FLOATING_POINT 1
+#endif
+
+#if CRT_HAS_FLOATING_POINT
+typedef union {
+ su_int u;
+ float f;
+} float_bits;
+
+typedef union {
+ udwords u;
+ double f;
+} double_bits;
+#endif
+
+typedef struct {
+#if _YUGA_LITTLE_ENDIAN
+ udwords low;
+ udwords high;
+#else
+ udwords high;
+ udwords low;
+#endif // _YUGA_LITTLE_ENDIAN
+} uqwords;
+
+// Check if the target supports 80 bit extended precision long doubles.
+// Notably, on x86 Windows, MSVC only provides a 64-bit long double, but GCC
+// still makes it 80 bits. Clang will match whatever compiler it is trying to
+// be compatible with. On 32-bit x86 Android, long double is 64 bits, while on
+// x86_64 Android, long double is 128 bits.
+#if (defined(__i386__) || defined(__x86_64__)) && \
+ !(defined(_MSC_VER) || defined(__ANDROID__))
+#define HAS_80_BIT_LONG_DOUBLE 1
+#elif defined(__m68k__) || defined(__ia64__)
+#define HAS_80_BIT_LONG_DOUBLE 1
+#else
+#define HAS_80_BIT_LONG_DOUBLE 0
+#endif
+
+#if CRT_HAS_FLOATING_POINT
+typedef union {
+ uqwords u;
+ long double f;
+} long_double_bits;
+
+#if __STDC_VERSION__ >= 199901L
+typedef float _Complex Fcomplex;
+typedef double _Complex Dcomplex;
+typedef long double _Complex Lcomplex;
+
+#define COMPLEX_REAL(x) __real__(x)
+#define COMPLEX_IMAGINARY(x) __imag__(x)
+#else
+typedef struct {
+ float real, imaginary;
+} Fcomplex;
+
+typedef struct {
+ double real, imaginary;
+} Dcomplex;
+
+typedef struct {
+ long double real, imaginary;
+} Lcomplex;
+
+#define COMPLEX_REAL(x) (x).real
+#define COMPLEX_IMAGINARY(x) (x).imaginary
+#endif
+#endif
+#endif // INT_TYPES_H
diff --git a/lib/compiler-rt/builtins/int_util.h b/lib/compiler-rt/builtins/int_util.h
new file mode 100644
index 0000000..c372c2e
--- /dev/null
+++ b/lib/compiler-rt/builtins/int_util.h
@@ -0,0 +1,47 @@
+//===-- int_util.h - internal utility functions ---------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file is not part of the interface of this library.
+//
+// This file defines non-inline utilities which are available for use in the
+// library. The function definitions themselves are all contained in int_util.c
+// which will always be compiled into any compiler-rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef INT_UTIL_H
+#define INT_UTIL_H
+
+/// \brief Trigger a program abort (or panic for kernel code).
+#define compilerrt_abort() __compilerrt_abort_impl(__FILE__, __LINE__, __func__)
+
+NORETURN void __compilerrt_abort_impl(const char *file, int line,
+ const char *function);
+
+#define COMPILE_TIME_ASSERT(expr) COMPILE_TIME_ASSERT1(expr, __COUNTER__)
+#define COMPILE_TIME_ASSERT1(expr, cnt) COMPILE_TIME_ASSERT2(expr, cnt)
+#define COMPILE_TIME_ASSERT2(expr, cnt) \
+ typedef char ct_assert_##cnt[(expr) ? 1 : -1] UNUSED
+
+// Force unrolling the code specified to be repeated N times.
+#define REPEAT_0_TIMES(code_to_repeat) /* do nothing */
+#define REPEAT_1_TIMES(code_to_repeat) code_to_repeat
+#define REPEAT_2_TIMES(code_to_repeat) \
+ REPEAT_1_TIMES(code_to_repeat) \
+ code_to_repeat
+#define REPEAT_3_TIMES(code_to_repeat) \
+ REPEAT_2_TIMES(code_to_repeat) \
+ code_to_repeat
+#define REPEAT_4_TIMES(code_to_repeat) \
+ REPEAT_3_TIMES(code_to_repeat) \
+ code_to_repeat
+
+#define REPEAT_N_TIMES_(N, code_to_repeat) REPEAT_##N##_TIMES(code_to_repeat)
+#define REPEAT_N_TIMES(N, code_to_repeat) REPEAT_N_TIMES_(N, code_to_repeat)
+
+#endif // INT_UTIL_H
diff --git a/lib/compiler-rt/builtins/lshrdi3.c b/lib/compiler-rt/builtins/lshrdi3.c
new file mode 100644
index 0000000..6072152
--- /dev/null
+++ b/lib/compiler-rt/builtins/lshrdi3.c
@@ -0,0 +1,38 @@
+//===-- lshrdi3.c - Implement __lshrdi3 -----------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements __lshrdi3 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+
+// Returns: logical a >> b
+
+// Precondition: 0 <= b < bits_in_dword
+
+COMPILER_RT_ABI di_int __lshrdi3(di_int a, int b) {
+ const int bits_in_word = (int)(sizeof(si_int) * CHAR_BIT);
+ udwords input;
+ udwords result;
+ input.all = a;
+ if (b & bits_in_word) /* bits_in_word <= b < bits_in_dword */ {
+ result.s.high = 0;
+ result.s.low = input.s.high >> (b - bits_in_word);
+ } else /* 0 <= b < bits_in_word */ {
+ if (b == 0)
+ return a;
+ result.s.high = input.s.high >> b;
+ result.s.low = (input.s.high << (bits_in_word - b)) | (input.s.low >> b);
+ }
+ return result.all;
+}
+
+#if defined(__ARM_EABI__)
+COMPILER_RT_ALIAS(__lshrdi3, __aeabi_llsr)
+#endif
diff --git a/lib/compiler-rt/builtins/popcountdi2.c b/lib/compiler-rt/builtins/popcountdi2.c
new file mode 100644
index 0000000..20dd0b0
--- /dev/null
+++ b/lib/compiler-rt/builtins/popcountdi2.c
@@ -0,0 +1,32 @@
+//===-- popcountdi2.c - Implement __popcountdi2 ---------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements __popcountdi2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+
+// Returns: count of 1 bits
+
+COMPILER_RT_ABI int __popcountdi2(di_int a) {
+ du_int x2 = (du_int)a;
+ x2 = x2 - ((x2 >> 1) & 0x5555555555555555uLL);
+ // Every 2 bits holds the sum of every pair of bits (32)
+ x2 = ((x2 >> 2) & 0x3333333333333333uLL) + (x2 & 0x3333333333333333uLL);
+ // Every 4 bits holds the sum of every 4-set of bits (3 significant bits) (16)
+ x2 = (x2 + (x2 >> 4)) & 0x0F0F0F0F0F0F0F0FuLL;
+ // Every 8 bits holds the sum of every 8-set of bits (4 significant bits) (8)
+ su_int x = (su_int)(x2 + (x2 >> 32));
+ // The lower 32 bits hold four 16 bit sums (5 significant bits).
+ // Upper 32 bits are garbage
+ x = x + (x >> 16);
+ // The lower 16 bits hold two 32 bit sums (6 significant bits).
+ // Upper 16 bits are garbage
+ return (x + (x >> 8)) & 0x0000007F; // (7 significant bits)
+}
diff --git a/lib/compiler-rt/builtins/popcountsi2.c b/lib/compiler-rt/builtins/popcountsi2.c
new file mode 100644
index 0000000..4d346c4
--- /dev/null
+++ b/lib/compiler-rt/builtins/popcountsi2.c
@@ -0,0 +1,29 @@
+//===-- popcountsi2.c - Implement __popcountsi2 ---------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements __popcountsi2 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+
+// Returns: count of 1 bits
+
+COMPILER_RT_ABI int __popcountsi2(si_int a) {
+ su_int x = (su_int)a;
+ x = x - ((x >> 1) & 0x55555555);
+ // Every 2 bits holds the sum of every pair of bits
+ x = ((x >> 2) & 0x33333333) + (x & 0x33333333);
+ // Every 4 bits holds the sum of every 4-set of bits (3 significant bits)
+ x = (x + (x >> 4)) & 0x0F0F0F0F;
+ // Every 8 bits holds the sum of every 8-set of bits (4 significant bits)
+ x = (x + (x >> 16));
+ // The lower 16 bits hold two 8 bit sums (5 significant bits).
+ // Upper 16 bits are garbage
+ return (x + (x >> 8)) & 0x0000003F; // (6 significant bits)
+}
diff --git a/lib/compiler-rt/builtins/udivmoddi4.c b/lib/compiler-rt/builtins/udivmoddi4.c
new file mode 100644
index 0000000..123e5fb
--- /dev/null
+++ b/lib/compiler-rt/builtins/udivmoddi4.c
@@ -0,0 +1,200 @@
+//===-- udivmoddi4.c - Implement __udivmoddi4 -----------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements __udivmoddi4 for the compiler_rt library.
+//
+//===----------------------------------------------------------------------===//
+
+#include "int_lib.h"
+
+// Effects: if rem != 0, *rem = a % b
+// Returns: a / b
+
+// Translated from Figure 3-40 of The PowerPC Compiler Writer's Guide
+
+#if defined(_MSC_VER) && !defined(__clang__)
+// MSVC throws a warning about mod 0 here, disable it for builds that
+// warn-as-error
+#pragma warning(push)
+#pragma warning(disable : 4723 4724)
+#endif
+
+COMPILER_RT_ABI du_int __udivmoddi4(du_int a, du_int b, du_int *rem) {
+ const unsigned n_uword_bits = sizeof(su_int) * CHAR_BIT;
+ const unsigned n_udword_bits = sizeof(du_int) * CHAR_BIT;
+ udwords n;
+ n.all = a;
+ udwords d;
+ d.all = b;
+ udwords q;
+ udwords r;
+ unsigned sr;
+ // special cases, X is unknown, K != 0
+ if (n.s.high == 0) {
+ if (d.s.high == 0) {
+ // 0 X
+ // ---
+ // 0 X
+ if (rem)
+ *rem = n.s.low % d.s.low;
+ return n.s.low / d.s.low;
+ }
+ // 0 X
+ // ---
+ // K X
+ if (rem)
+ *rem = n.s.low;
+ return 0;
+ }
+ // n.s.high != 0
+ if (d.s.low == 0) {
+ if (d.s.high == 0) {
+ // K X
+ // ---
+ // 0 0
+ if (rem)
+ *rem = n.s.high % d.s.low;
+ return n.s.high / d.s.low;
+ }
+ // d.s.high != 0
+ if (n.s.low == 0) {
+ // K 0
+ // ---
+ // K 0
+ if (rem) {
+ r.s.high = n.s.high % d.s.high;
+ r.s.low = 0;
+ *rem = r.all;
+ }
+ return n.s.high / d.s.high;
+ }
+ // K K
+ // ---
+ // K 0
+ if ((d.s.high & (d.s.high - 1)) == 0) /* if d is a power of 2 */ {
+ if (rem) {
+ r.s.low = n.s.low;
+ r.s.high = n.s.high & (d.s.high - 1);
+ *rem = r.all;
+ }
+ return n.s.high >> ctzsi(d.s.high);
+ }
+ // K K
+ // ---
+ // K 0
+ sr = clzsi(d.s.high) - clzsi(n.s.high);
+ // 0 <= sr <= n_uword_bits - 2 or sr large
+ if (sr > n_uword_bits - 2) {
+ if (rem)
+ *rem = n.all;
+ return 0;
+ }
+ ++sr;
+ // 1 <= sr <= n_uword_bits - 1
+ // q.all = n.all << (n_udword_bits - sr);
+ q.s.low = 0;
+ q.s.high = n.s.low << (n_uword_bits - sr);
+ // r.all = n.all >> sr;
+ r.s.high = n.s.high >> sr;
+ r.s.low = (n.s.high << (n_uword_bits - sr)) | (n.s.low >> sr);
+ } else /* d.s.low != 0 */ {
+ if (d.s.high == 0) {
+ // K X
+ // ---
+ // 0 K
+ if ((d.s.low & (d.s.low - 1)) == 0) /* if d is a power of 2 */ {
+ if (rem)
+ *rem = n.s.low & (d.s.low - 1);
+ if (d.s.low == 1)
+ return n.all;
+ sr = ctzsi(d.s.low);
+ q.s.high = n.s.high >> sr;
+ q.s.low = (n.s.high << (n_uword_bits - sr)) | (n.s.low >> sr);
+ return q.all;
+ }
+ // K X
+ // ---
+ // 0 K
+ sr = 1 + n_uword_bits + clzsi(d.s.low) - clzsi(n.s.high);
+ // 2 <= sr <= n_udword_bits - 1
+ // q.all = n.all << (n_udword_bits - sr);
+ // r.all = n.all >> sr;
+ if (sr == n_uword_bits) {
+ q.s.low = 0;
+ q.s.high = n.s.low;
+ r.s.high = 0;
+ r.s.low = n.s.high;
+ } else if (sr < n_uword_bits) /* 2 <= sr <= n_uword_bits - 1 */ {
+ q.s.low = 0;
+ q.s.high = n.s.low << (n_uword_bits - sr);
+ r.s.high = n.s.high >> sr;
+ r.s.low = (n.s.high << (n_uword_bits - sr)) | (n.s.low >> sr);
+ } else /* n_uword_bits + 1 <= sr <= n_udword_bits - 1 */ {
+ q.s.low = n.s.low << (n_udword_bits - sr);
+ q.s.high = (n.s.high << (n_udword_bits - sr)) |
+ (n.s.low >> (sr - n_uword_bits));
+ r.s.high = 0;
+ r.s.low = n.s.high >> (sr - n_uword_bits);
+ }
+ } else {
+ // K X
+ // ---
+ // K K
+ sr = clzsi(d.s.high) - clzsi(n.s.high);
+ // 0 <= sr <= n_uword_bits - 1 or sr large
+ if (sr > n_uword_bits - 1) {
+ if (rem)
+ *rem = n.all;
+ return 0;
+ }
+ ++sr;
+ // 1 <= sr <= n_uword_bits
+ // q.all = n.all << (n_udword_bits - sr);
+ q.s.low = 0;
+ if (sr == n_uword_bits) {
+ q.s.high = n.s.low;
+ r.s.high = 0;
+ r.s.low = n.s.high;
+ } else {
+ q.s.high = n.s.low << (n_uword_bits - sr);
+ r.s.high = n.s.high >> sr;
+ r.s.low = (n.s.high << (n_uword_bits - sr)) | (n.s.low >> sr);
+ }
+ }
+ }
+ // Not a special case
+ // q and r are initialized with:
+ // q.all = n.all << (n_udword_bits - sr);
+ // r.all = n.all >> sr;
+ // 1 <= sr <= n_udword_bits - 1
+ su_int carry = 0;
+ for (; sr > 0; --sr) {
+ // r:q = ((r:q) << 1) | carry
+ r.s.high = (r.s.high << 1) | (r.s.low >> (n_uword_bits - 1));
+ r.s.low = (r.s.low << 1) | (q.s.high >> (n_uword_bits - 1));
+ q.s.high = (q.s.high << 1) | (q.s.low >> (n_uword_bits - 1));
+ q.s.low = (q.s.low << 1) | carry;
+ // carry = 0;
+ // if (r.all >= d.all)
+ // {
+ // r.all -= d.all;
+ // carry = 1;
+ // }
+ const di_int s = (di_int)(d.all - r.all - 1) >> (n_udword_bits - 1);
+ carry = s & 1;
+ r.all -= d.all & s;
+ }
+ q.all = (q.all << 1) | carry;
+ if (rem)
+ *rem = r.all;
+ return q.all;
+}
+
+#if defined(_MSC_VER) && !defined(__clang__)
+#pragma warning(pop)
+#endif
diff --git a/lib/compiler-rt/compiler-rt.mk b/lib/compiler-rt/compiler-rt.mk
new file mode 100644
index 0000000..2338908
--- /dev/null
+++ b/lib/compiler-rt/compiler-rt.mk
@@ -0,0 +1,43 @@
+#
+# Copyright (c) 2017-2019, ARM Limited and Contributors. All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#
+# Redistributions of source code must retain the above copyright notice, this
+# list of conditions and the following disclaimer.
+#
+# Redistributions in binary form must reproduce the above copyright notice,
+# this list of conditions and the following disclaimer in the documentation
+# and/or other materials provided with the distribution.
+#
+# Neither the name of ARM nor the names of its contributors may be used
+# to endorse or promote products derived from this software without specific
+# prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+COMPILER_RT_SRCS := lib/compiler-rt/builtins/popcountdi2.c \
+ lib/compiler-rt/builtins/popcountsi2.c
+
+ifeq (${ARCH},aarch32)
+COMPILER_RT_SRCS += lib/compiler-rt/builtins/arm/aeabi_ldivmod.S \
+ lib/compiler-rt/builtins/arm/aeabi_uldivmod.S \
+ lib/compiler-rt/builtins/arm/aeabi_memcpy.S \
+ lib/compiler-rt/builtins/ctzdi2.c \
+ lib/compiler-rt/builtins/divdi3.c \
+ lib/compiler-rt/builtins/divmoddi4.c \
+ lib/compiler-rt/builtins/lshrdi3.c \
+ lib/compiler-rt/builtins/udivmoddi4.c
+endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-22 10:39:08 +0000