[llvm] Rework i1->i32 zext/anyext translation (PR #114721)

[Matt Arsenault via llvm-commits]

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@@ -1162,77 +1162,43 @@ define amdgpu_gfx void @s_set_rounding_i3_zeroext(i3 zeroext inreg %rounding) {
 }
 
 define amdgpu_gfx void @s_set_rounding_select_0_1(i32 inreg %cond) {
-; GFX6-LABEL: s_set_rounding_select_0_1:
-; GFX6:       ; %bb.0:
-; GFX6-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX6-NEXT:    s_cmp_lg_u32 s4, 0
-; GFX6-NEXT:    s_cselect_b64 s[34:35], -1, 0
-; GFX6-NEXT:    v_cndmask_b32_e64 v0, 0, 1, s[34:35]
-; GFX6-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
-; GFX6-NEXT:    v_lshr_b32_e32 v0, 0xa50f, v0
-; GFX6-NEXT:    v_readfirstlane_b32 s34, v0
-; GFX6-NEXT:    s_setreg_b32 hwreg(HW_REG_MODE, 0, 4), s34
-; GFX6-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX7-LABEL: s_set_rounding_select_0_1:
-; GFX7:       ; %bb.0:
-; GFX7-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX7-NEXT:    s_cmp_lg_u32 s4, 0
-; GFX7-NEXT:    s_cselect_b64 s[34:35], -1, 0
-; GFX7-NEXT:    v_cndmask_b32_e64 v0, 0, 1, s[34:35]
-; GFX7-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
-; GFX7-NEXT:    v_lshr_b32_e32 v0, 0xa50f, v0
-; GFX7-NEXT:    v_readfirstlane_b32 s34, v0
-; GFX7-NEXT:    s_setreg_b32 hwreg(HW_REG_MODE, 0, 4), s34
-; GFX7-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX8-LABEL: s_set_rounding_select_0_1:
-; GFX8:       ; %bb.0:
-; GFX8-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX8-NEXT:    s_cmp_lg_u32 s4, 0
-; GFX8-NEXT:    s_cselect_b64 s[34:35], -1, 0
-; GFX8-NEXT:    v_cndmask_b32_e64 v0, 0, 1, s[34:35]
-; GFX8-NEXT:    v_lshlrev_b32_e32 v0, 2, v0
-; GFX8-NEXT:    s_mov_b32 s34, 0xa50f
-; GFX8-NEXT:    v_lshrrev_b32_e64 v0, v0, s34
-; GFX8-NEXT:    v_readfirstlane_b32 s34, v0
-; GFX8-NEXT:    s_setreg_b32 hwreg(HW_REG_MODE, 0, 4), s34
-; GFX8-NEXT:    s_setpc_b64 s[30:31]
+; GFX678-LABEL: s_set_rounding_select_0_1:
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arsenm wrote:

These are improvements 

https://github.com/llvm/llvm-project/pull/114721