[llvm] [PeepholeOptimizer] Recognize new move-immediate instructions (PR #72128)

[via llvm-commits]

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@@ -715,12 +715,33 @@ define amdgpu_ps i32 @s_mul_fma_32_f32(float inreg %x, float inreg %y) {
 ; GFX9-NEXT:    v_readfirstlane_b32 s0, v0
 ; GFX9-NEXT:    ; return to shader part epilog
 ;
-; GFX1011-LABEL: s_mul_fma_32_f32:
-; GFX1011:       ; %bb.0:
-; GFX1011-NEXT:    v_mov_b32_e32 v0, s1
-; GFX1011-NEXT:    v_fmac_f32_e64 v0, 0x42000000, s0
-; GFX1011-NEXT:    v_readfirstlane_b32 s0, v0
-; GFX1011-NEXT:    ; return to shader part epilog
+; GFX10-SDAG-LABEL: s_mul_fma_32_f32:
+; GFX10-SDAG:       ; %bb.0:
+; GFX10-SDAG-NEXT:    v_mov_b32_e32 v0, s1
+; GFX10-SDAG-NEXT:    v_fmac_f32_e64 v0, 0x42000000, s0
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rovka wrote:

Why isn't this one turned into a v_fmamk?

https://github.com/llvm/llvm-project/pull/72128