Assertion `New != this && "this->replaceAllUsesWith(this) is NOT valid!"' failed. #9389
Description
| Bugzilla Link | 9017 |
| Resolution | FIXED |
| Resolved on | Jan 23, 2011 21:29 |
| Version | trunk |
| OS | Linux |
| CC | @tkremenek |
Extended Description
regehr@home:~/volatile/bugs/tmp349$ clang -O2 -c small.c
clang: Value.cpp:312: void llvm::Value::replaceAllUsesWith(llvm::Value*): Assertion `New != this && "this->replaceAllUsesWith(this) is NOT valid!"' failed.
0 clang 0x09498118
Stack dump:
0. Program arguments: /mnt/z/z/compiler-install/llvm-gcc-r123968-install/bin/clang -cc1 -triple i386-pc-linux-gnu -emit-obj -disable-free -main-file-name small.c -mrelocation-model static -mdisable-fp-elim -masm-verbose -mconstructor-aliases -target-cpu pentium4 -target-linker-version 2.20.51 -resource-dir /mnt/z/z/compiler-install/llvm-gcc-r123968-install/bin/../lib/clang/2.9 -O2 -ferror-limit 19 -fmessage-length 80 -fgnu-runtime -fdiagnostics-show-option -fcolor-diagnostics -o small.o -x c small.c
- parser at end of file
- Per-module optimization passes
- Running pass 'CallGraph Pass Manager' on module 'small.c'.
- Running pass 'Scalar Replacement of Aggregates (SSAUp)' on function '@int322'
clang: error: unable to execute command: Aborted
clang: error: clang frontend command failed due to signal 1 (use -v to see invocation)
regehr@home:~/volatile/bugs/tmp349$ clang -v
clang version 2.9 (trunk 123968)
Target: i386-pc-linux-gnu
Thread model: posix
regehr@home:~/volatile/bugs/tmp349$ cat small.c
int g_85;
int func_75 (void)
{
lbl_95:
g_85 ^= 0;
goto lbl_95;
}
int *func_80 (int **p_82)
{
return *p_82;
}
void int322 (void)
{
int l_34;
int *l_72 = &l_34;
if (func_75 ())
for (;;)
{
int **l_144 = &l_72;
*l_144 = func_80 (&l_72);
}
}