src/ia32/lithium-codegen-ia32.cc - Issue 22964004: Fix a bug in Div when all uses are truncating

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Unified Diff: src/ia32/lithium-codegen-ia32.cc

Issue 22964004: Fix a bug in Div when all uses are truncating (Closed) Base URL: https://github.com/v8/v8.git@master

Patch Set: more elegant ARM version Created 7 years, 4 months ago

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Index: src/ia32/lithium-codegen-ia32.cc

diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc

index 6dc0171b00b11e4cbc3659ce07243f2f1d703b16..808a3831ab82e8dcf8567a1613859135b1215539 100644

--- a/src/ia32/lithium-codegen-ia32.cc

+++ b/src/ia32/lithium-codegen-ia32.cc

@@ -1441,6 +1441,7 @@ void LCodeGen::DoDivI(LDivI* instr) {

__ cmp(dividend, 0);

__ j(less, &negative, Label::kNear);

__ sar(dividend, power);

+ if (divisor < 0) __ neg(dividend);

__ jmp(&done, Label::kNear);

__ bind(&negative);

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