https://llvm.org/bugs/show_bug.cgi?id=23608
Bug ID: 23608
Summary: crash in LICM
Product: libraries
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: Loop Optimizer
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Classification: Unclassified
C testcase:
typedef struct { int f_iblock; } PyFrameObject;
PyFrameObject *a;
void fn1() {
void *b[] = {&&TARGET_LOAD_CLASSDEREF, &&_unknown_opcode};
TARGET_LOAD_CLASSDEREF:
goto * 0;
_unknown_opcode:
while (a->f_iblock)
;
}
$ ./clang a.c -O1 -fsanitize=memory -fsanitize-memory-track-origins=2
[...]
1. <eof> parser at end of file
2. Per-module optimization passes
3. Running pass 'Function Pass Manager' on module 'a.c'.
4. Running pass 'Loop Pass Manager' on function '@fn1'
5. Running pass 'Loop Invariant Code Motion' on basic block '%1'
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