http://llvm.org/bugs/show_bug.cgi?id=15555
Bug ID: 15555
Summary: Inline + SROA appear to miscompile code with EH
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Scalar Optimizations
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
Created attachment 10210
--> http://llvm.org/bugs/attachment.cgi?id=10210&action=edit
File compiled with -O0
The attached .cpp file (O0.ll is that program compiled at `-O0') will abort
when you run it like this:
$ opt -inline -sroa O0.ll -o is.ll
$ llc -o is.s is.ll
$ clang++ is.s -o is
$ ./is
Abort trap: 6
The problem is that once the `thr' function is inlined into `run', the landing
pad that it would have jumped to is removed in a later pass. The call to `thr'
(`thr' is recursive) is changed from an `invoke' into a `call'. The next thing
to happen after the `call' is to execute the `abort'.
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