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Update to new predicate simplifier VRP design. Fixes PR966 and PR967.

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Remove predicate simplifier from default gcc3 pipeline. New design is too
slow to enable by default.
Add new testcases for problems encountered in development.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31895 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2006-11-22 23:49:16 +00:00
parent 6d0fbd4185
commit 565706b93e
8 changed files with 1328 additions and 651 deletions
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tools/gccas/gccas.cpp
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@@ -103,7 +103,6 @@ void AddConfiguredTransformationPasses(PassManager &PM) {
addPass(PM, createCFGSimplificationPass()); // Merge & remove BBs
addPass(PM, createScalarReplAggregatesPass()); // Break up aggregate allocas
addPass(PM, createInstructionCombiningPass()); // Combine silly seq's
addPass(PM, createPredicateSimplifierPass()); // Canonicalize registers
addPass(PM, createCondPropagationPass()); // Propagate conditionals
addPass(PM, createTailCallEliminationPass()); // Eliminate tail calls