Open Quuxplusone opened 7 years ago
SROA-crash.log
Created attachment 17283 Traceback from assertion Fuzz testing got this crash; bugpoint-reduced IR file attached. I admit it looks pretty bogus, the original IR is not quite so stupid. But a crash is a crash, so I figured I'd file it anyway. $ cat SROA-crash.ll ; ModuleID = 'bugpoint-reduced-simplified.bc' ; source_filename = "bugpoint-output-0a7776e.bc" target triple = "x86_64-scei-ps4" ; Function Attrs: norecurse noreturn nounwind define void @autogen_SD998899922() #0 { CF419: %A4 = alloca <4 x i64>, align 32 br label %CF434 CF434: ; preds = %CF434, %CF419 br label %CF434 CF449: ; preds = %CF449 br label %CF449 CF423: ; preds = %CF423 store <4 x i64> %L38, <4 x i64>* %A4, align 32 %L38 = load <4 x i64>, <4 x i64>* %A4, align 32 store <4 x i64> zeroinitializer, <4 x i64>* %A4, align 32 br label %CF423 } attributes #0 = { noreturn nounwind } $ opt -sroa SROA-crash.ll -S -o output.ll opt: /home/probinson/projects/llvm-org/trunk/llvm/lib/IR/Value.cpp:373: void llv m::Value::replaceAllUsesWith(llvm::Value*): Assertion `!contains(New, this) && " this->replaceAllUsesWith(expr(this)) is NOT valid!"' failed. (full log attached)
Attached SROA-crash.log (5773 bytes, application/octet-stream): Traceback from assertion
posted potential fix on Phabricator https://reviews.llvm.org/D43544
SROA-crash.log
(5773 bytes, application/octet-stream)