[llvm] [DAG] visitFREEZE - always allow freezing multiple operands (PR #145939)

[Nikita Popov via llvm-commits]

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@@ -479,21 +479,28 @@ define i128 @v_sdiv_i128_vv(i128 %lhs, i128 %rhs) {
 ; GFX9-O0-NEXT:    ; implicit-def: $sgpr8
 ; GFX9-O0-NEXT:    ; kill: def $vgpr4 killed $vgpr4 def $vgpr4_vgpr5 killed $exec
 ; GFX9-O0-NEXT:    v_mov_b32_e32 v5, v8
-; GFX9-O0-NEXT:    buffer_store_dword v4, off, s[0:3], s32 offset:28 ; 4-byte Folded Spill
-; GFX9-O0-NEXT:    s_nop 0
-; GFX9-O0-NEXT:    buffer_store_dword v5, off, s[0:3], s32 offset:32 ; 4-byte Folded Spill
 ; GFX9-O0-NEXT:    ; implicit-def: $sgpr8
 ; GFX9-O0-NEXT:    ; implicit-def: $sgpr8
 ; GFX9-O0-NEXT:    ; kill: def $vgpr7 killed $vgpr7 def $vgpr7_vgpr8 killed $exec
 ; GFX9-O0-NEXT:    v_mov_b32_e32 v8, v6
-; GFX9-O0-NEXT:    buffer_store_dword v7, off, s[0:3], s32 offset:20 ; 4-byte Folded Spill
+; GFX9-O0-NEXT:    v_mov_b32_e32 v10, v8
+; GFX9-O0-NEXT:    v_mov_b32_e32 v9, v7
+; GFX9-O0-NEXT:    buffer_store_dword v9, off, s[0:3], s32 offset:28 ; 4-byte Folded Spill
+; GFX9-O0-NEXT:    s_nop 0
+; GFX9-O0-NEXT:    buffer_store_dword v10, off, s[0:3], s32 offset:32 ; 4-byte Folded Spill
+; GFX9-O0-NEXT:    v_mov_b32_e32 v10, v5
+; GFX9-O0-NEXT:    v_mov_b32_e32 v9, v4
+; GFX9-O0-NEXT:    buffer_store_dword v9, off, s[0:3], s32 offset:20 ; 4-byte Folded Spill
 ; GFX9-O0-NEXT:    s_nop 0
-; GFX9-O0-NEXT:    buffer_store_dword v8, off, s[0:3], s32 offset:24 ; 4-byte Folded Spill
-; GFX9-O0-NEXT:    v_cmp_eq_u64_e64 s[8:9], v[7:8], s[6:7]
+; GFX9-O0-NEXT:    buffer_store_dword v10, off, s[0:3], s32 offset:24 ; 4-byte Folded Spill
+; GFX9-O0-NEXT:    s_mov_b64 s[8:9], s[6:7]
+; GFX9-O0-NEXT:    v_cmp_eq_u64_e64 s[8:9], v[7:8], s[8:9]
 ; GFX9-O0-NEXT:    s_mov_b64 s[12:13], 0x7f
-; GFX9-O0-NEXT:    v_cmp_gt_u64_e64 s[14:15], v[4:5], s[12:13]
+; GFX9-O0-NEXT:    s_mov_b64 s[14:15], s[12:13]
+; GFX9-O0-NEXT:    v_cmp_gt_u64_e64 s[14:15], v[4:5], s[14:15]
 ; GFX9-O0-NEXT:    v_cndmask_b32_e64 v9, 0, 1, s[14:15]
-; GFX9-O0-NEXT:    v_cmp_ne_u64_e64 s[14:15], v[7:8], s[6:7]
+; GFX9-O0-NEXT:    s_mov_b64 s[14:15], s[6:7]
+; GFX9-O0-NEXT:    v_cmp_ne_u64_e64 s[14:15], v[7:8], s[14:15]
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nikic wrote:

Regression but only at `-O0`, so doesn't matter.

https://github.com/llvm/llvm-project/pull/145939