src/compiler/arm64/code-generator-arm64.cc - Issue 1698483002: [arm][arm64] Improve CountTrailingZero implementation.

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Unified Diff: src/compiler/arm64/code-generator-arm64.cc

Issue 1698483002: [arm][arm64] Improve CountTrailingZero implementation. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master

Patch Set: Created 4 years, 10 months ago

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Index: src/compiler/arm64/code-generator-arm64.cc

diff --git a/src/compiler/arm64/code-generator-arm64.cc b/src/compiler/arm64/code-generator-arm64.cc

index a3e1de0c0ec8f9cab8ea9c1553bbbb448b29335c..494242291f2ac41236ed702bebda0d7c46da3384 100644

--- a/src/compiler/arm64/code-generator-arm64.cc

+++ b/src/compiler/arm64/code-generator-arm64.cc

@@ -976,6 +976,12 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {

case kArm64Clz32:

__ Clz(i.OutputRegister32(), i.InputRegister32(0));

break;

+ case kArm64Rbit:

+ __ Rbit(i.OutputRegister64(), i.InputRegister64(0));

+ break;

+ case kArm64Rbit32:

+ __ Rbit(i.OutputRegister32(), i.InputRegister32(0));

+ break;

case kArm64Cmp:

__ Cmp(i.InputOrZeroRegister64(0), i.InputOperand(1));

break;