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MIPS: CpuProfiler: fix for CollectDeoptEvents test.

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Port a925f3f478

Original commit message:
The same idea as in https://codereview.chromium.org/984893003/

BUG=chromium:452067
LOG=n

Review URL: https://codereview.chromium.org/996883002

Cr-Commit-Position: refs/heads/master@{#27133}
This commit is contained in:
balazs.kilvady 2015-03-11 06:42:39 -07:00 committed by Commit bot
parent 61e4b6028b
commit ee4f1bd81d
1 changed files with 26 additions and 39 deletions
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65
src/mips/lithium-codegen-mips.cc
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@ -347,50 +347,37 @@ bool LCodeGen::GenerateJumpTable() {
if (table_entry->needs_frame) {
DCHECK(!info()->saves_caller_doubles());
if (needs_frame.is_bound()) {
__ Branch(&needs_frame);
} else {
__ bind(&needs_frame);
Comment(";;; call deopt with frame");
__ MultiPush(cp.bit() | fp.bit() | ra.bit());
// This variant of deopt can only be used with stubs. Since we don't
// have a function pointer to install in the stack frame that we're
// building, install a special marker there instead.
DCHECK(info()->IsStub());
__ li(at, Operand(Smi::FromInt(StackFrame::STUB)));
__ push(at);
__ Addu(fp, sp,
Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
__ bind(&call_deopt_entry);
// Add the base address to the offset previously loaded in
// entry_offset.
__ Addu(entry_offset, entry_offset,
Operand(ExternalReference::ForDeoptEntry(base)));
__ Call(entry_offset);
}
Comment(";;; call deopt with frame");
__ MultiPush(cp.bit() | fp.bit() | ra.bit());
__ Call(&needs_frame);
} else {
// The last entry can fall through into `call_deopt_entry`, avoiding a
// branch.
bool need_branch = ((i + 1) != length) || call_deopt_entry.is_bound();
if (need_branch) __ Branch(&call_deopt_entry);
__ Call(&call_deopt_entry);
}
}
if (!call_deopt_entry.is_bound()) {
Comment(";;; call deopt");
__ bind(&call_deopt_entry);
if (info()->saves_caller_doubles()) {
DCHECK(info()->IsStub());
RestoreCallerDoubles();
}
// Add the base address to the offset previously loaded in entry_offset.
__ Addu(entry_offset, entry_offset,
Operand(ExternalReference::ForDeoptEntry(base)));
__ Call(entry_offset);
if (needs_frame.is_linked()) {
__ bind(&needs_frame);
// This variant of deopt can only be used with stubs. Since we don't
// have a function pointer to install in the stack frame that we're
// building, install a special marker there instead.
DCHECK(info()->IsStub());
__ li(at, Operand(Smi::FromInt(StackFrame::STUB)));
__ push(at);
__ Addu(fp, sp, Operand(StandardFrameConstants::kFixedFrameSizeFromFp));
}
Comment(";;; call deopt");
__ bind(&call_deopt_entry);
if (info()->saves_caller_doubles()) {
DCHECK(info()->IsStub());
RestoreCallerDoubles();
}
// Add the base address to the offset previously loaded in entry_offset.
__ Addu(entry_offset, entry_offset,
Operand(ExternalReference::ForDeoptEntry(base)));
__ Jump(entry_offset);
}
__ RecordComment("]");