[llvm] [NFC][AMDGPU] Pre-commit a test case that shows wrong reverse operation is used for V_CMPX_LE_U32 (PR #146527)
Shilei Tian via llvm-commits
llvm-commits at lists.llvm.org
Tue Jul 1 06:51:11 PDT 2025
================
@@ -10,3 +10,16 @@ body: |
; GCN: S_CMP_LT_I32 65, 1, implicit-def $scc
S_CMP_GT_I32 1, 65, implicit-def $scc
...
+
+---
+name: shrink_icmp
+body: |
+ bb.0:
+ ; GCN-LABEL: name: shrink_icmp
+ ; GCN: %op0:sgpr_32 = COPY $sgpr0
+ ; GCN-NEXT: %cond:sreg_64 = V_CMPX_LE_U32_e64 5, %op0, implicit-def $exec, implicit $exec
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shiltian wrote:
Yeah because the pass does seem to commute it first (maybe for better potential opportunities after commute?).
https://github.com/llvm/llvm-project/pull/146527
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