diff options
Diffstat (limited to 'js/src/jit/BaselineIC.cpp')
| -rw-r--r-- | js/src/jit/BaselineIC.cpp | 24 |
1 files changed, 20 insertions, 4 deletions
diff --git a/js/src/jit/BaselineIC.cpp b/js/src/jit/BaselineIC.cpp index 506cbf1d2..8a7c68e59 100644 --- a/js/src/jit/BaselineIC.cpp +++ b/js/src/jit/BaselineIC.cpp @@ -10,6 +10,8 @@ #include "mozilla/SizePrintfMacros.h" #include "mozilla/TemplateLib.h" +#include "jsfriendapi.h" +#include "jsfun.h" #include "jslibmath.h" #include "jstypes.h" @@ -5494,11 +5496,17 @@ TryAttachCallStub(JSContext* cx, ICCall_Fallback* stub, HandleScript script, jsb MOZ_ASSERT_IF(templateObject, !templateObject->group()->maybePreliminaryObjects()); } + bool ignoresReturnValue = false; + if (op == JSOP_CALL_IGNORES_RV && fun->isNative()) { + const JSJitInfo* jitInfo = fun->jitInfo(); + ignoresReturnValue = jitInfo && jitInfo->type() == JSJitInfo::IgnoresReturnValueNative; + } + JitSpew(JitSpew_BaselineIC, " Generating Call_Native stub (fun=%p, cons=%s, spread=%s)", fun.get(), constructing ? "yes" : "no", isSpread ? "yes" : "no"); ICCall_Native::Compiler compiler(cx, stub->fallbackMonitorStub()->firstMonitorStub(), - fun, templateObject, constructing, isSpread, - script->pcToOffset(pc)); + fun, templateObject, constructing, ignoresReturnValue, + isSpread, script->pcToOffset(pc)); ICStub* newStub = compiler.getStub(compiler.getStubSpace(script)); if (!newStub) return false; @@ -5601,12 +5609,14 @@ DoCallFallback(JSContext* cx, BaselineFrame* frame, ICCall_Fallback* stub_, uint MOZ_ASSERT(argc == GET_ARGC(pc)); bool constructing = (op == JSOP_NEW); + bool ignoresReturnValue = (op == JSOP_CALL_IGNORES_RV); // Ensure vp array is rooted - we may GC in here. size_t numValues = argc + 2 + constructing; AutoArrayRooter vpRoot(cx, numValues, vp); - CallArgs callArgs = CallArgsFromSp(argc + constructing, vp + numValues, constructing); + CallArgs callArgs = CallArgsFromSp(argc + constructing, vp + numValues, constructing, + ignoresReturnValue); RootedValue callee(cx, vp[0]); // Handle funapply with JSOP_ARGUMENTS @@ -5636,6 +5646,7 @@ DoCallFallback(JSContext* cx, BaselineFrame* frame, ICCall_Fallback* stub_, uint return false; } else { MOZ_ASSERT(op == JSOP_CALL || + op == JSOP_CALL_IGNORES_RV || op == JSOP_CALLITER || op == JSOP_FUNCALL || op == JSOP_FUNAPPLY || @@ -6686,7 +6697,12 @@ ICCall_Native::Compiler::generateStubCode(MacroAssembler& masm) // stub and use that instead of the original one. masm.callWithABI(Address(ICStubReg, ICCall_Native::offsetOfNative())); #else - masm.callWithABI(Address(callee, JSFunction::offsetOfNativeOrScript())); + if (ignoresReturnValue_) { + masm.loadPtr(Address(callee, JSFunction::offsetOfJitInfo()), callee); + masm.callWithABI(Address(callee, JSJitInfo::offsetOfIgnoresReturnValueNative())); + } else { + masm.callWithABI(Address(callee, JSFunction::offsetOfNativeOrScript())); + } #endif // Test for failure. |