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Remove not-both-smis optimization on FloatingPointHelper::LoadNumbersAsIntegers on X64 platform.

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Review URL: http://codereview.chromium.org/2861031

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4960 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
whesse@chromium.org 2010-06-28 10:54:07 +00:00
parent 7832dd1b97
commit 8fda0670ef
1 changed files with 4 additions and 9 deletions
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11
src/x64/codegen-x64.cc
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@ -10031,20 +10031,15 @@ void FloatingPointHelper::LoadAsIntegers(MacroAssembler* masm,
// Input: rdx, rax are the left and right objects of a bit op.
// Output: rax, rcx are left and right integers for a bit op.
void FloatingPointHelper::LoadNumbersAsIntegers(MacroAssembler* masm) {
if (FLAG_debug_code) {
// Both arguments can not be smis. That case is handled by smi-only code.
Label ok;
__ JumpIfNotBothSmi(rax, rdx, &ok);
__ Abort("Both arguments smi but not handled by smi-code.");
__ bind(&ok);
}
// Check float operands.
Label done;
Label rax_is_smi;
Label rax_is_object;
Label rdx_is_object;
__ JumpIfNotSmi(rdx, &rdx_is_object);
__ SmiToInteger32(rdx, rdx);
__ JumpIfSmi(rax, &rax_is_smi);
__ bind(&rax_is_object);
IntegerConvert(masm, rcx, rax); // Uses rdi, rcx and rbx.
@ -10053,6 +10048,7 @@ void FloatingPointHelper::LoadNumbersAsIntegers(MacroAssembler* masm) {
__ bind(&rdx_is_object);
IntegerConvert(masm, rdx, rdx); // Uses rdi, rcx and rbx.
__ JumpIfNotSmi(rax, &rax_is_object);
__ bind(&rax_is_smi);
__ SmiToInteger32(rcx, rax);
__ bind(&done);
@ -10437,7 +10433,6 @@ void GenericBinaryOpStub::Generate(MacroAssembler* masm) {
Label not_floats;
// rax: y
// rdx: x
ASSERT(!static_operands_type_.IsSmi());
if (static_operands_type_.IsNumber()) {
if (FLAG_debug_code) {
// Assert at runtime that inputs are only numbers.