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Landing: MIPS: Remove gp and sp from callee-saved register list.

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Original code review: http://codereview.chromium.org/7740018/
Review URL: http://codereview.chromium.org/7744050

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@9020 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
fschneider@chromium.org 2011-08-26 07:24:30 +00:00
parent dda2889ba1
commit 3cdff159ea
2 changed files with 6 additions and 6 deletions
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6
src/mips/code-stubs-mips.cc
View File

@ -3693,10 +3693,10 @@ void JSEntryStub::GenerateBody(MacroAssembler* masm, bool is_construct) {
// args
// Save callee saved registers on the stack.
__ MultiPush((kCalleeSaved | ra.bit()) & ~sp.bit());
__ MultiPush(kCalleeSaved | ra.bit());
// Load argv in s0 register.
__ lw(s0, MemOperand(sp, kNumCalleeSaved * kPointerSize +
__ lw(s0, MemOperand(sp, (kNumCalleeSaved + 1) * kPointerSize +
StandardFrameConstants::kCArgsSlotsSize));
// We build an EntryFrame.
@ -3830,7 +3830,7 @@ void JSEntryStub::GenerateBody(MacroAssembler* masm, bool is_construct) {
__ addiu(sp, sp, -EntryFrameConstants::kCallerFPOffset);
// Restore callee saved registers from the stack.
__ MultiPop((kCalleeSaved | ra.bit()) & ~sp.bit());
__ MultiPop(kCalleeSaved | ra.bit());
// Return.
__ Jump(ra);
}

6
src/mips/frames-mips.h
View File

@ -59,10 +59,10 @@ static const RegList kCalleeSaved =
// Saved temporaries.
1 << 16 | 1 << 17 | 1 << 18 | 1 << 19 |
1 << 20 | 1 << 21 | 1 << 22 | 1 << 23 |
// gp, sp, fp.
1 << 28 | 1 << 29 | 1 << 30;
// fp.
1 << 30;
static const int kNumCalleeSaved = 11;
static const int kNumCalleeSaved = 9;
// Number of registers for which space is reserved in safepoints. Must be a