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PPC: Sign-extended result in DoFlooringDivI/DoDivI on 64bit

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result is sign-extended on 64bit for functions
     LCodeGen::DoFlooringDivI and LCodeGen::DoDivI

R=joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com, mbrandy@us.ibm.com

BUG=
LOG=N

Review-Url: https://codereview.chromium.org/2029273002
Cr-Commit-Position: refs/heads/master@{#36661}
This commit is contained in:
bjaideep 2016-06-01 17:44:08 -07:00 committed by Commit bot
parent 2fd3f9d69b
commit 6f76cc567d
1 changed files with 7 additions and 0 deletions
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7
src/crankshaft/ppc/lithium-codegen-ppc.cc
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@ -1140,6 +1140,10 @@ void LCodeGen::DoDivI(LDivI* instr) {
}
}
#if V8_TARGET_ARCH_PPC64
__ extsw(result, result);
#endif
if (!hdiv->CheckFlag(HInstruction::kAllUsesTruncatingToInt32)) {
// Deoptimize if remainder is not 0.
Register scratch = scratch0();
@ -1333,6 +1337,9 @@ void LCodeGen::DoFlooringDivI(LFlooringDivI* instr) {
// We performed a truncating division. Correct the result.
__ subi(result, result, Operand(1));
__ bind(&done);
#if V8_TARGET_ARCH_PPC64
__ extsw(result, result);
#endif
}