================
@@ -465,17 +463,16 @@ define amdgpu_ps i32 @bcnt032(i32 inreg %val0) {
define amdgpu_ps i32 @bcnt064(i64 inreg %val0) {
; CHECK-LABEL: bcnt064:
; CHECK: ; %bb.0:
-; CHECK-NEXT: s_bcnt1_i32_b64 s0, s[0:1]
-; CHECK-NEXT: s_sub_u32 s0, 64, s0
-; CHECK-NEXT: s_subb_u32 s1, 0, 0
-; CHECK-NEXT: s_cmp_lg_u64 s[0:1], 0
-; CHECK-NEXT: ;;#ASMSTART
-; CHECK-NEXT: ; use s[0:1]
-; CHECK-NEXT: ;;#ASMEND
-; CHECK-NEXT: s_cselect_b64 s[0:1], -1, 0
-; CHECK-NEXT: v_cndmask_b32_e64 v0, 0, 1, s[0:1]
-; CHECK-NEXT: v_readfirstlane_b32 s0, v0
-; CHECK-NEXT: ; return to shader part epilog
+; CHECK-NEXT: s_bcnt0_i32_b64 s0, s[0:1]
+; CHECK-NEXT: s_mov_b32 s1, 0
+; CHECK-NEXT: s_cmp_lg_u64 s[0:1], 0
----------------
jayfoad wrote:
As a follow up, it would be good if we could somehow generate a 32-bit compare
instead here:
```suggestion
; CHECK-NEXT: s_cmp_lg_u32 s0, 0
```
https://github.com/llvm/llvm-project/pull/164847
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