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Remove unused SmiTryAddConstant from X64 macro assembler

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R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/24978003

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@17007 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
haitao.feng@intel.com 2013-09-30 13:36:39 +00:00
parent 6dd72b6416
commit 1160383498
2 changed files with 0 additions and 31 deletions
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22
src/x64/macro-assembler-x64.cc
View File

@ -1447,28 +1447,6 @@ void MacroAssembler::JumpUnlessBothNonNegativeSmi(Register src1,
}
void MacroAssembler::SmiTryAddConstant(Register dst,
Register src,
Smi* constant,
Label* on_not_smi_result,
Label::Distance near_jump) {
// Does not assume that src is a smi.
ASSERT_EQ(static_cast<int>(1), static_cast<int>(kSmiTagMask));
STATIC_ASSERT(kSmiTag == 0);
ASSERT(!dst.is(kScratchRegister));
ASSERT(!src.is(kScratchRegister));
JumpIfNotSmi(src, on_not_smi_result, near_jump);
Register tmp = (dst.is(src) ? kScratchRegister : dst);
LoadSmiConstant(tmp, constant);
addq(tmp, src);
j(overflow, on_not_smi_result, near_jump);
if (dst.is(src)) {
movq(dst, tmp);
}
}
void MacroAssembler::SmiAddConstant(Register dst, Register src, Smi* constant) {
if (constant->value() == 0) {
if (!dst.is(src)) {

9
src/x64/macro-assembler-x64.h
View File

@ -532,15 +532,6 @@ class MacroAssembler: public Assembler {
// Smis represent a subset of integers. The subset is always equivalent to
// a two's complement interpretation of a fixed number of bits.
// Optimistically adds an integer constant to a supposed smi.
// If the src is not a smi, or the result is not a smi, jump to
// the label.
void SmiTryAddConstant(Register dst,
Register src,
Smi* constant,
Label* on_not_smi_result,
Label::Distance near_jump = Label::kFar);
// Add an integer constant to a tagged smi, giving a tagged smi as result.
// No overflow testing on the result is done.
void SmiAddConstant(Register dst, Register src, Smi* constant);