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Always reset allowed OSR nesting level when reverting interrupt code patches.

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Also, --trap-on-deopt should only affect optimized functions, not hydrogen stubs.

R=yangguo@chromium.org

Review URL: https://codereview.chromium.org/16848020

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@15204 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
This commit is contained in:
jkummerow@chromium.org 2013-06-19 09:38:28 +00:00
parent 3ca50a576a
commit 7821715dc1
6 changed files with 5 additions and 7 deletions
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2
src/arm/lithium-codegen-arm.cc
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@ -825,7 +825,7 @@ void LCodeGen::DeoptimizeIf(Condition cc,
return;
}
if (FLAG_trap_on_deopt) {
if (FLAG_trap_on_deopt && info()->IsOptimizing()) {
__ stop("trap_on_deopt", cc);
}

1
src/deoptimizer.cc
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@ -2429,6 +2429,7 @@ void Deoptimizer::RevertInterruptCode(Code* unoptimized_code,
back_edge_cursor += FullCodeGenerator::kBackEdgeEntrySize;
}
unoptimized_code->set_back_edges_patched_for_osr(false);
unoptimized_code->set_allow_osr_at_loop_nesting_level(0);
#ifdef DEBUG
// Assert that none of the back edges are patched anymore.
Deoptimizer::VerifyInterruptCode(

2
src/ia32/lithium-codegen-ia32.cc
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@ -901,7 +901,7 @@ void LCodeGen::DeoptimizeIf(Condition cc,
__ popfd();
}
if (FLAG_trap_on_deopt) {
if (FLAG_trap_on_deopt && info()->IsOptimizing()) {
Label done;
if (cc != no_condition) {
__ j(NegateCondition(cc), &done, Label::kNear);

2
src/mips/lithium-codegen-mips.cc
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@ -796,7 +796,7 @@ void LCodeGen::DeoptimizeIf(Condition cc,
return;
}
if (FLAG_trap_on_deopt) {
if (FLAG_trap_on_deopt && info()->IsOptimizing()) {
Label skip;
if (cc != al) {
__ Branch(&skip, NegateCondition(cc), src1, src2);

3
src/runtime.cc
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@ -8265,9 +8265,6 @@ RUNTIME_FUNCTION(MaybeObject*, Runtime_CompileForOnStackReplacement) {
*interrupt_code,
*replacement_code);
// Allow OSR only at nesting level zero again.
unoptimized->set_allow_osr_at_loop_nesting_level(0);
// If the optimization attempt succeeded, return the AST id tagged as a
// smi. This tells the builtin that we need to translate the unoptimized
// frame to an optimized one.

2
src/x64/lithium-codegen-x64.cc
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@ -706,7 +706,7 @@ void LCodeGen::DeoptimizeIf(Condition cc,
ASSERT(FLAG_deopt_every_n_times == 0); // Not yet implemented on x64.
if (FLAG_trap_on_deopt) {
if (FLAG_trap_on_deopt && info()->IsOptimizing()) {
Label done;
if (cc != no_condition) {
__ j(NegateCondition(cc), &done, Label::kNear);