Adding upstream version 124.0.1.upstream/124.0.1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 97 insertions, 0 deletions

diff --git a/js/src/jsapi-tests/testWasmReturnCalls.cpp b/js/src/jsapi-tests/testWasmReturnCalls.cpp
new file mode 100644
index 0000000000..ef06bf4710
--- /dev/null
+++ b/js/src/jsapi-tests/testWasmReturnCalls.cpp
@@ -0,0 +1,97 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: set ts=8 sts=2 et sw=2 tw=80:
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "jit/MacroAssembler.h"
+
+#include "jsapi-tests/tests.h"
+#include "jsapi-tests/testsJit.h"
+
+#include "jit/MacroAssembler-inl.h"
+
+using namespace js;
+using namespace js::jit;
+
+#if defined(ENABLE_WASM_TAIL_CALLS) && !defined(JS_CODEGEN_NONE)
+
+// Check if wasmMarkSlowCall produces the byte sequence that can
+// wasmCheckSlowCallsite detect.
+BEGIN_TEST(testWasmCheckSlowCallMarkerHit) {
+  js::LifoAlloc lifo(4096);
+  TempAllocator alloc(&lifo);
+  JitContext jc(cx);
+  StackMacroAssembler masm(cx, alloc);
+  AutoCreatedBy acb(masm, __func__);
+
+  PrepareJit(masm);
+
+  Label check, fail, end;
+  masm.call(&check);
+  masm.wasmMarkSlowCall();
+  masm.jump(&end);
+
+  masm.bind(&check);
+#  ifdef JS_USE_LINK_REGISTER
+#    if !defined(JS_CODEGEN_LOONG64) && !defined(JS_CODEGEN_MIPS64) && \
+        !defined(JS_CODEGEN_RISCV64)
+  static constexpr Register ra = lr;
+#    endif
+#  else
+  static constexpr Register ra = ABINonArgReg2;
+  masm.loadPtr(Address(StackPointer, 0), ra);
+#  endif
+
+  masm.wasmCheckSlowCallsite(ra, &fail, ABINonArgReg1, ABINonArgReg2);
+  masm.abiret();
+
+  masm.bind(&fail);
+  masm.printf("Failed\n");
+  masm.breakpoint();
+
+  masm.bind(&end);
+  return ExecuteJit(cx, masm);
+}
+END_TEST(testWasmCheckSlowCallMarkerHit)
+
+// Check if wasmCheckSlowCallsite does not detect non-marked slow calls.
+BEGIN_TEST(testWasmCheckSlowCallMarkerMiss) {
+  js::LifoAlloc lifo(4096);
+  TempAllocator alloc(&lifo);
+  JitContext jc(cx);
+  StackMacroAssembler masm(cx, alloc);
+  AutoCreatedBy acb(masm, __func__);
+
+  PrepareJit(masm);
+
+  Label check, fast, end;
+  masm.call(&check);
+  masm.nop();
+  masm.jump(&end);
+
+  masm.bind(&check);
+#  ifdef JS_USE_LINK_REGISTER
+#    if !defined(JS_CODEGEN_LOONG64) && !defined(JS_CODEGEN_MIPS64) && \
+        !defined(JS_CODEGEN_RISCV64)
+  static constexpr Register ra = lr;
+#    endif
+#  else
+  static constexpr Register ra = ABINonArgReg2;
+  masm.loadPtr(Address(StackPointer, 0), ra);
+#  endif
+
+  masm.wasmCheckSlowCallsite(ra, &fast, ABINonArgReg1, ABINonArgReg2);
+  masm.printf("Failed\n");
+  masm.breakpoint();
+
+  masm.bind(&fast);
+  masm.abiret();
+
+  masm.bind(&end);
+  return ExecuteJit(cx, masm);
+}
+END_TEST(testWasmCheckSlowCallMarkerMiss)
+
+#endif  // ENABLE_WASM_TAIL_CALLS