Move the EnableFullLoadPRE flag from a separate command-line option to an

argument of createGVNPass and set it automatically for -O3.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97245 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bob Wilson
2010-02-26 19:09:47 +00:00
parent ad597f99d9
commit 8561dcd730
3 changed files with 9 additions and 7 deletions

View File

@@ -138,7 +138,7 @@ namespace llvm {
PM->add(createLoopUnrollPass()); // Unroll small loops
PM->add(createInstructionCombiningPass()); // Clean up after the unroller
if (OptimizationLevel > 1)
PM->add(createGVNPass()); // Remove redundancies
PM->add(createGVNPass(OptimizationLevel > 2)); // Remove redundancies
PM->add(createMemCpyOptPass()); // Remove memcpy / form memset
PM->add(createSCCPPass()); // Constant prop with SCCP

View File

@@ -263,7 +263,8 @@ extern const PassInfo *const LCSSAID;
// GVN - This pass performs global value numbering and redundant load
// elimination cotemporaneously.
//
FunctionPass *createGVNPass(bool NoLoads = false);
FunctionPass *createGVNPass(bool EnableFullLoadPRE = true,
bool NoLoads = false);
//===----------------------------------------------------------------------===//
//