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| author | 2015-03-11 15:11:19 +0000 | |
|---|---|---|
| committer | 2015-03-12 17:55:01 +0000 | |
| commit | 915b9d0c13bb5091875d868fbfa551d7b65d7477 (patch) | |
| tree | 63822d7081b0da33ccda2019dd52025f0ecedb35 /compiler/optimizing/ssa_builder.h | |
| parent | bf5565a75876a84c8c2401df597d922a7870a8f2 (diff) | |
Tweak liveness when instructions are used in environments.
Instructions remain live when debuggable, but only instructions
with object types remain live when non-debuggable.
Enable StackVisitor::GetThisObject for optimizing.
Change-Id: Id87b2cbf33a02450059acc9993995782e5f28987
Diffstat (limited to 'compiler/optimizing/ssa_builder.h')
| -rw-r--r-- | compiler/optimizing/ssa_builder.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/compiler/optimizing/ssa_builder.h b/compiler/optimizing/ssa_builder.h index b414fb2945..24dc449513 100644 --- a/compiler/optimizing/ssa_builder.h +++ b/compiler/optimizing/ssa_builder.h @@ -33,7 +33,9 @@ static constexpr int kDefaultNumberOfLoops = 2; * * (a) Dex registers that do not require merging (that is, they do not * have different values at a join block) are available to all their - * environment uses. + * environment uses. Note that it does not imply the instruction will + * have a physical location after register allocation. See the + * SsaLivenessAnalysis phase. * * (b) Dex registers that require merging, and the merging gives * incompatible types, will be killed for environment uses of that merge. |