diff options
| author | Mingyao Yang <mingyao@google.com> | 2015-08-24 11:21:42 -0700 |
|---|---|---|
| committer | Mingyao Yang <mingyao@google.com> | 2015-10-15 01:36:34 -0700 |
| commit | 589dac7f0ce078d19aad7e35bb0195c47ddf01d2 (patch) | |
| tree | 5c77fb845997b21ce1aa97b1fa176c64a76e14f1 /compiler/optimizing/optimizing_compiler.cc | |
| parent | d2e0dd179fd2e8c6c820194e187fc5e9164154ff (diff) | |
load store elimination.
This adds a pass to eliminate some unnecessary heap loads/stores. It
first collects heap locations and then tracks values stored to those heap
locations. Alias analysis is done based on offset, type, singleton,
pre-existence, etc.
Change-Id: I11a9d8ef20d1b2f245607eb25118e9aff9be472a
Diffstat (limited to 'compiler/optimizing/optimizing_compiler.cc')
| -rw-r--r-- | compiler/optimizing/optimizing_compiler.cc | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/optimizing/optimizing_compiler.cc b/compiler/optimizing/optimizing_compiler.cc index c7f08066d4..607ce7e6cc 100644 --- a/compiler/optimizing/optimizing_compiler.cc +++ b/compiler/optimizing/optimizing_compiler.cc @@ -58,6 +58,7 @@ #include "intrinsics.h" #include "licm.h" #include "jni/quick/jni_compiler.h" +#include "load_store_elimination.h" #include "nodes.h" #include "prepare_for_register_allocation.h" #include "reference_type_propagation.h" @@ -460,6 +461,7 @@ static void RunOptimizations(HGraph* graph, SideEffectsAnalysis* side_effects = new (arena) SideEffectsAnalysis(graph); GVNOptimization* gvn = new (arena) GVNOptimization(graph, *side_effects); LICM* licm = new (arena) LICM(graph, *side_effects); + LoadStoreElimination* lse = new (arena) LoadStoreElimination(graph, *side_effects); HInductionVarAnalysis* induction = new (arena) HInductionVarAnalysis(graph); BoundsCheckElimination* bce = new (arena) BoundsCheckElimination(graph, induction); ReferenceTypePropagation* type_propagation = @@ -512,6 +514,7 @@ static void RunOptimizations(HGraph* graph, induction, bce, simplify3, + lse, dce2, // The codegen has a few assumptions that only the instruction simplifier // can satisfy. For example, the code generator does not expect to see a |