Sprinkle some PrettyStackEntry magic into the passmanager. With this, we now
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
diff --git a/lib/Analysis/LoopPass.cpp b/lib/Analysis/LoopPass.cpp
index c45c2ef..c4ff9889 100644
--- a/lib/Analysis/LoopPass.cpp
+++ b/lib/Analysis/LoopPass.cpp
@@ -209,7 +209,6 @@
// 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 @@
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, "");