1 files changed, 72 insertions, 0 deletions
diff --git a/vendor/compiler_builtins/src/lib.rs b/vendor/compiler_builtins/src/lib.rs
new file mode 100644
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+++ b/vendor/compiler_builtins/src/lib.rs
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+#![cfg_attr(feature = "compiler-builtins", compiler_builtins)]
+#![cfg_attr(not(feature = "no-asm"), feature(asm))]
+#![feature(abi_unadjusted)]
+#![cfg_attr(not(feature = "no-asm"), feature(global_asm))]
+#![feature(cfg_target_has_atomic)]
+#![feature(compiler_builtins)]
+#![feature(core_ffi_c)]
+#![feature(core_intrinsics)]
+#![feature(lang_items)]
+#![feature(linkage)]
+#![feature(naked_functions)]
+#![feature(repr_simd)]
+#![no_builtins]
+#![no_std]
+#![allow(unused_features)]
+// We use `u128` in a whole bunch of places which we currently agree with the
+// compiler on ABIs and such, so we should be "good enough" for now and changes
+// to the `u128` ABI will be reflected here.
+#![allow(improper_ctypes, improper_ctypes_definitions)]
+// `mem::swap` cannot be used because it may generate references to memcpy in unoptimized code.
+#![allow(clippy::manual_swap)]
+// Support compiling on both stage0 and stage1 which may differ in supported stable features.
+#![allow(stable_features)]
+
+// We disable #[no_mangle] for tests so that we can verify the test results
+// against the native compiler-rt implementations of the builtins.
+
+// NOTE cfg(all(feature = "c", ..)) indicate that compiler-rt provides an arch optimized
+// implementation of that intrinsic and we'll prefer to use that
+
+// NOTE(aapcs, aeabi, arm) ARM targets use intrinsics named __aeabi_* instead of the intrinsics
+// that follow "x86 naming convention" (e.g. addsf3). Those aeabi intrinsics must adhere to the
+// AAPCS calling convention (`extern "aapcs"`) because that's how LLVM will call them.
+
+#[cfg(test)]
+extern crate core;
+
+#[macro_use]
+mod macros;
+
+pub mod float;
+pub mod int;
+
+#[cfg(any(
+    all(target_family = "wasm", target_os = "unknown"),
+    all(target_arch = "x86_64", target_os = "uefi"),
+    all(target_arch = "arm", target_os = "none"),
+    all(target_vendor = "fortanix", target_env = "sgx")
+))]
+pub mod math;
+pub mod mem;
+
+#[cfg(target_arch = "arm")]
+pub mod arm;
+
+#[cfg(all(
+    kernel_user_helpers,
+    any(target_os = "linux", target_os = "android"),
+    target_arch = "arm"
+))]
+pub mod arm_linux;
+
+#[cfg(any(target_arch = "riscv32", target_arch = "riscv64"))]
+pub mod riscv;
+
+#[cfg(target_arch = "x86")]
+pub mod x86;
+
+#[cfg(target_arch = "x86_64")]
+pub mod x86_64;
+
+pub mod probestack;