| Issue |
71742
|
| Summary |
llc very slow to compile IR sample
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
meheff
|
llc is very slow to compile (45m) the attached IR after optimizations. llc 17.0.4 finishes in 3s.
At main c2ad9f8b607931430e86da7420493599c48e62a0.
Repro:
```
$ llc -version
LLVM (http://llvm.org/):
LLVM version 18.0.0git
Optimized build.
Default target:
Host CPU: skylake-avx512
Registered Targets:
x86 - 32-bit X86: Pentium-Pro and above
x86-64 - 64-bit X86: EM64T and AMD64
$ opt bad2.ll -S -O2 > opt.bad2.ll
$ llc --march=x86-64 opt.bad2.ll
....takes forever...
```
[bad2.ll.gz](https://github.com/llvm/llvm-project/files/13301751/bad2.ll.gz)
![]()
_______________________________________________
llvm-bugs mailing list
[email protected]
https://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-bugs
