diff options
| author | Mitch <mitchbriles@gmail.com> | 2025-09-02 19:13:54 -0600 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-09-03 09:13:54 +0800 |
| commit | cb89ffdd34aa6b7e6d1417ef68e1d837c8e651a1 (patch) | |
| tree | 63ebd06b304fe1258acb4d9e25b2eaa0781893cd /clang/utils/TableGen/RISCVVEmitter.cpp | |
| parent | c33ccfa52b2db90bae72ac11ee50639231e93310 (diff) | |
| download | llvm-cb89ffdd34aa6b7e6d1417ef68e1d837c8e651a1.zip llvm-cb89ffdd34aa6b7e6d1417ef68e1d837c8e651a1.tar.gz llvm-cb89ffdd34aa6b7e6d1417ef68e1d837c8e651a1.tar.bz2 | |
[RISCV] Fix incorrect folding of select on ctlz/cttz (#155231)
This patch tries to fix
[#155014](https://github.com/llvm/llvm-project/issues/155014). The
pattern of `ctlz`/`cttz` -> `icmp` -> `select` can occur when accounting
for targets which don't support `cttz(0)` or `ctlz(0)`. We can replace
this with a mask, but **only on power-of-2 bitwidths**.
Diffstat (limited to 'clang/utils/TableGen/RISCVVEmitter.cpp')
0 files changed, 0 insertions, 0 deletions