Revision: 8868
Author: mstarzin...@chromium.org
Date: Wed Aug 10 01:03:22 2011
Log: ARM: Fix deoptimizer for two-word call sites.
R=svenpa...@chromium.org,kmilli...@chromium.org
BUG=v8:1584
Review URL: http://codereview.chromium.org/7585006
http://code.google.com/p/v8/source/detail?r=8868
Modified:
/branches/bleeding_edge/src/arm/deoptimizer-arm.cc
/branches/bleeding_edge/src/arm/macro-assembler-arm.h
=======================================
--- /branches/bleeding_edge/src/arm/deoptimizer-arm.cc Mon Aug 8 00:34:54
2011
+++ /branches/bleeding_edge/src/arm/deoptimizer-arm.cc Wed Aug 10 01:03:22
2011
@@ -65,8 +65,6 @@
// For each return after a safepoint insert an absolute call to the
// corresponding deoptimization entry.
- ASSERT(patch_size() % Assembler::kInstrSize == 0);
- int call_size_in_words = patch_size() / Assembler::kInstrSize;
unsigned last_pc_offset = 0;
SafepointTable table(function->code());
for (unsigned i = 0; i < table.length(); i++) {
@@ -87,13 +85,18 @@
#endif
last_pc_offset = pc_offset;
if (deoptimization_index != Safepoint::kNoDeoptimizationIndex) {
+ Address deoptimization_entry = Deoptimizer::GetDeoptimizationEntry(
+ deoptimization_index, Deoptimizer::LAZY);
last_pc_offset += gap_code_size;
+ int call_size_in_bytes =
MacroAssembler::CallSize(deoptimization_entry,
+ RelocInfo::NONE);
+ int call_size_in_words = call_size_in_bytes / Assembler::kInstrSize;
+ ASSERT(call_size_in_bytes % Assembler::kInstrSize == 0);
+ ASSERT(call_size_in_bytes <= patch_size());
CodePatcher patcher(code->instruction_start() + last_pc_offset,
call_size_in_words);
- Address deoptimization_entry = Deoptimizer::GetDeoptimizationEntry(
- deoptimization_index, Deoptimizer::LAZY);
patcher.masm()->Call(deoptimization_entry, RelocInfo::NONE);
- last_pc_offset += patch_size();
+ last_pc_offset += call_size_in_bytes;
}
}
=======================================
--- /branches/bleeding_edge/src/arm/macro-assembler-arm.h Fri Jul 8
03:46:10 2011
+++ /branches/bleeding_edge/src/arm/macro-assembler-arm.h Wed Aug 10
01:03:22 2011
@@ -92,14 +92,16 @@
void Jump(Register target, Condition cond = al);
void Jump(Address target, RelocInfo::Mode rmode, Condition cond = al);
void Jump(Handle<Code> code, RelocInfo::Mode rmode, Condition cond = al);
- int CallSize(Register target, Condition cond = al);
+ static int CallSize(Register target, Condition cond = al);
void Call(Register target, Condition cond = al);
- int CallSize(Address target, RelocInfo::Mode rmode, Condition cond = al);
+ static int CallSize(Address target,
+ RelocInfo::Mode rmode,
+ Condition cond = al);
void Call(Address target, RelocInfo::Mode rmode, Condition cond = al);
- int CallSize(Handle<Code> code,
- RelocInfo::Mode rmode = RelocInfo::CODE_TARGET,
- unsigned ast_id = kNoASTId,
- Condition cond = al);
+ static int CallSize(Handle<Code> code,
+ RelocInfo::Mode rmode = RelocInfo::CODE_TARGET,
+ unsigned ast_id = kNoASTId,
+ Condition cond = al);
void Call(Handle<Code> code,
RelocInfo::Mode rmode = RelocInfo::CODE_TARGET,
unsigned ast_id = kNoASTId,
--
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