summaryrefslogtreecommitdiff
path: root/src/compiler/codegen/codegen_util.h
diff options
context:
space:
mode:
author buzbee <buzbee@google.com> 2012-12-14 13:35:28 -0800
committer buzbee <buzbee@google.com> 2013-02-06 12:16:33 -0800
commit4ef3e45d7c6ec3c482a1a48f4df470811aa3cf0a (patch)
tree5d91ff23708048a2b453a5917dab82be1b545f91 /src/compiler/codegen/codegen_util.h
parentf84f99fe3a944310fdfb6f17836079ac5c48c799 (diff)
Compiler constant handling rework
In preparation for de-optimization, reworked the constant handling mechanism. Also took advantage of knowledge of constant operands (particularly for long operations). Significant performance improvements for Mandelbrot (~60 seconds to ~34 seconds). Minor improvements in other benchmarks. The new constant handling breaks two of the existing optimization passes: "Skip Large Method" and "Load/Store Elimization." I don't intend to update the large method optimization because it will be superceeded by the upcoming interpreter/ fingerprinting mechanism. Leaving the code in place for now in order to compare compile-time improvements with fingerprinting/interpret. All related code will be deleted when that is complete. The load/store elimination pass needs some rework to handle uses of multiple-register loads and stores. It will be updated & restored in a future CL. Change-Id: Ia979abaf51b8ae81bbb0428031cbcea854625fac
Diffstat (limited to 'src/compiler/codegen/codegen_util.h')
-rw-r--r--src/compiler/codegen/codegen_util.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/compiler/codegen/codegen_util.h b/src/compiler/codegen/codegen_util.h
index 4f146560b2..9b9bece585 100644
--- a/src/compiler/codegen/codegen_util.h
+++ b/src/compiler/codegen/codegen_util.h
@@ -20,6 +20,7 @@
#include <stdint.h>
#include "compiler/compiler_enums.h"
+#include "compiler/compiler_ir.h"
namespace art {
@@ -59,6 +60,8 @@ void DumpPackedSwitchTable(const uint16_t* table);
LIR* MarkBoundary(CompilationUnit* cu, int offset, const char* inst_str);
void NopLIR(LIR* lir);
bool EvaluateBranch(Instruction::Code opcode, int src1, int src2);
+bool IsInexpensiveConstant(CompilationUnit* cu, RegLocation rl_src);
+ConditionCode FlipComparisonOrder(ConditionCode before);
} // namespace art