https://bugs.llvm.org/show_bug.cgi?id=38462
Bug ID: 38462
Summary: PGO crashes with SEH
Product: new-bugs
Version: unspecified
Hardware: PC
OS: Windows NT
Status: NEW
Severity: enhancement
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: dma...@mozilla.com
CC: llvm-bugs@lists.llvm.org, r...@google.com
The profdata file that reproduces this is quite large, so I'm hoping someone
can figure this out from just the stack, or let me know if there's a way to cut
out the uninteresting bits from the file.
$ cat gfxFontInfoLoader-911413.cpp
int f();
struct S {
bool b();
void v() { if (b()) f(); }
};
struct FontInfoData {
virtual void Load();
};
void FontInfoData::Load() {
for(int i = 0; i < 1 && !f();)
__try {
f();
} __except(1) {
S s;
s.v();
}
}
Stack dump:
0. Program arguments: clang-cl -cc1 -triple
x86_64-pc-windows-msvc19.13.26128 -emit-obj
-fprofile-instrument-use-path=merged.profdata -O2 -fms-extensions
gfxFontInfoLoader-911413.cpp
1. <eof> parser at end of file
2. Per-module optimization passes
3. Running pass 'Function Pass Manager' on module
'gfxFontInfoLoader-911413.cpp'.
4. Running pass 'Simplify the CFG' on function
'@"?Load@FontInfoData@@UEAAXXZ"'
#0 0x00000000016eb99f llvm::sys::PrintStackTrace(llvm::raw_ostream&)
/home/vm/src/llvm8/lib/Support/Unix/Signals.inc:490:13
#1 0x00000000016e9f00 llvm::sys::RunSignalHandlers()
/home/vm/src/llvm8/lib/Support/Signals.cpp:68:18
#2 0x00000000016ebcb2 SignalHandler(int)
/home/vm/src/llvm8/lib/Support/Unix/Signals.inc:353:1
#3 0x00007fefd19f1390 __restore_rt
(/lib/x86_64-linux-gnu/libpthread.so.0+0x11390)
#4 0x000000000172ae48 llvm::Value::getValueID() const
/home/vm/src/llvm8/include/llvm/IR/Value.h:464:12
#5 0x000000000172ae48 llvm::Instruction::getOpcode() const
/home/vm/src/llvm8/include/llvm/IR/Instruction.h:126:0
#6 0x000000000172ae48 llvm::InvokeInst::classof(llvm::Instruction const*)
/home/vm/src/llvm8/include/llvm/IR/Instructions.h:4077:0
#7 0x000000000172ae48 llvm::isa_impl<llvm::InvokeInst, llvm::TerminatorInst,
void>::doit(llvm::TerminatorInst const&)
/home/vm/src/llvm8/include/llvm/Support/Casting.h:59:0
#8 0x000000000172ae48 llvm::isa_impl_cl<llvm::InvokeInst, llvm::TerminatorInst
const*>::doit(llvm::TerminatorInst const*)
/home/vm/src/llvm8/include/llvm/Support/Casting.h:107:0
#9 0x000000000172ae48 llvm::isa_impl_wrap<llvm::InvokeInst,
llvm::TerminatorInst const*, llvm::TerminatorInst
const*>::doit(llvm::TerminatorInst const* const&)
/home/vm/src/llvm8/include/llvm/Support/Casting.h:133:0
#10 0x000000000172ae48 llvm::isa_impl_wrap<llvm::InvokeInst,
llvm::TerminatorInst* const, llvm::TerminatorInst
const*>::doit(llvm::TerminatorInst* const&)
/home/vm/src/llvm8/include/llvm/Support/Casting.h:123:0
#11 0x000000000172ae48 bool llvm::isa<llvm::InvokeInst,
llvm::TerminatorInst*>(llvm::TerminatorInst* const&)
/home/vm/src/llvm8/include/llvm/Support/Casting.h:143:0
#12 0x000000000172ae48 llvm::cast_retty<llvm::InvokeInst,
llvm::TerminatorInst*>::ret_type llvm::dyn_cast<llvm::InvokeInst,
llvm::TerminatorInst>(llvm::TerminatorInst*)
/home/vm/src/llvm8/include/llvm/Support/Casting.h:334:0
#13 0x000000000172ae48 markAliveBlocks(llvm::Function&,
llvm::SmallPtrSetImpl<llvm::BasicBlock*>&, llvm::DeferredDominance*)
/home/vm/src/llvm8/lib/Transforms/Utils/Local.cpp:2094:0
#14 0x000000000172ae48 llvm::removeUnreachableBlocks(llvm::Function&,
llvm::LazyValueInfo*, llvm::DeferredDominance*)
/home/vm/src/llvm8/lib/Transforms/Utils/Local.cpp:2210:0
#15 0x0000000001651a77 simplifyFunctionCFG(llvm::Function&,
llvm::TargetTransformInfo const&, llvm::SimplifyCFGOptions const&)
/home/vm/src/llvm8/lib/Transforms/Scalar/SimplifyCFGPass.cpp:176:22
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