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Sprinkle some PrettyStackEntry magic into the passmanager. With this, we now

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get nice and happy stack traces when we crash in an optimizer or codegen.  For
example, an abort put in UnswitchLoops now looks like this:

Stack dump:
0.	Program arguments: clang pr3399.c -S -O3 
1.	<eof> parser at end of file
2.	per-module optimization passes
3.	Running pass 'CallGraph Pass Manager' on module 'pr3399.c'.
4.	Running pass 'Loop Pass Manager' on function '@foo'
5.	Running pass 'Unswitch loops' on basic block '%for.inc'
Abort



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66260 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2009-03-06 06:45:05 +00:00
parent 7157228a58
commit d6f16587ab
3 changed files with 129 additions and 90 deletions
Download Patch File Download Diff File Expand all files Collapse all files
lib/Analysis/LoopPass.cpp
+7 -5
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@@ -209,7 +209,6 @@ bool LPPassManager::runOnFunction(Function &F) {
// Run all passes on current SCC
for (unsigned Index = 0; Index < getNumContainedPasses(); ++Index) {
Pass *P = getContainedPass(Index);
dumpPassInfo(P, EXECUTION_MSG, ON_LOOP_MSG, "");
@@ -217,11 +216,14 @@ bool LPPassManager::runOnFunction(Function &F) {
initializeAnalysisImpl(P);
StartPassTimer(P);
LoopPass *LP = dynamic_cast<LoopPass *>(P);
assert (LP && "Invalid LPPassManager member");
Changed |= LP->runOnLoop(CurrentLoop, *this);
StopPassTimer(P);
{
PassManagerPrettyStackEntry X(LP, *CurrentLoop->getHeader());
StartPassTimer(P);
assert(LP && "Invalid LPPassManager member");
Changed |= LP->runOnLoop(CurrentLoop, *this);
StopPassTimer(P);
}
if (Changed)
dumpPassInfo(P, MODIFICATION_MSG, ON_LOOP_MSG, "");