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Add options to disable simplification with passes, in case one of them crashes

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5950 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2003-04-25 22:08:12 +00:00
parent 8bdd129c8a
commit 6db70ef879
1 changed files with 16 additions and 3 deletions
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19
tools/bugpoint/ExtractFunction.cpp
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@ -14,6 +14,19 @@
#include "llvm/Analysis/Verifier.h"
#include "llvm/Type.h"
#include "llvm/Constant.h"
#include "Support/CommandLine.h"
namespace {
cl::opt<bool>
NoADCE("disable-adce",
cl::desc("Do not use the -adce pass to reduce testcases"));
cl::opt<bool>
NoDCE ("disable-dce",
cl::desc("Do not use the -dce pass to reduce testcases"));
cl::opt<bool>
NoSCFG("disable-simplifycfg",
cl::desc("Do not use the -simplifycfg pass to reduce testcases"));
}
/// deleteInstructionFromProgram - This method clones the current Program and
/// deletes the specified instruction from the cloned module. It then runs a
@ -46,12 +59,12 @@ Module *BugDriver::deleteInstructionFromProgram(Instruction *I,
// Spiff up the output a little bit.
PassManager Passes;
if (Simplification > 2)
if (Simplification > 2 && !NoADCE)
Passes.add(createAggressiveDCEPass()); // Remove dead code...
//Passes.add(createInstructionCombiningPass());
if (Simplification > 1)
if (Simplification > 1 && !NoDCE)
Passes.add(createDeadCodeEliminationPass());
if (Simplification)
if (Simplification && !NoSCFG)
Passes.add(createCFGSimplificationPass()); // Delete dead control flow
Passes.add(createVerifierPass());