[llvm] [AMDGPU] Remove s_delay_alu for VALU->SGPR->SALU (PR #127212)

[Nicolai Hähnle via llvm-commits]

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@@ -428,7 +428,6 @@ define amdgpu_kernel void @divergent_value(ptr addrspace(1) %out, i32 %in) {
 ; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
 ; GFX1164DAGISEL-NEXT:    v_readlane_b32 s6, v0, s5
 ; GFX1164DAGISEL-NEXT:    s_bitset0_b64 s[2:3], s5
-; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
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nhaehnle wrote:

Yes, v_readlane behaves like v_cmp in this regard, so this change is good.

https://github.com/llvm/llvm-project/pull/127212