[llvm] [AMDGPU][SDAG] Legalise v2i32 or/xor/and instructions to make use of 64-bit wide instructions (PR #140694)

[Janek van Oirschot via llvm-commits]

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@@ -2388,30 +2388,25 @@ def : GCNPat<(i32 (trunc (srl i64:$src0, (i32 ShiftAmt32Imm:$src1)))),
 } // end True16Predicate = NotHasTrue16BitInsts
 
 let True16Predicate = UseRealTrue16Insts in {
-def : GCNPat <
-  (rotr i32:$src0, i32:$src1),
-  (V_ALIGNBIT_B32_t16_e64 /* src0_modifiers */ 0, $src0,
-                          /* src1_modifiers */ 0, $src0,
-                          /* src2_modifiers */ 0,
-                          (EXTRACT_SUBREG $src1, lo16),
-                          /* clamp */ 0, /* op_sel */ 0)
->;
-
-def : GCNPat<(i32 (trunc (srl i64:$src0, (i32 ShiftAmt32Imm:$src1)))),
-          (V_ALIGNBIT_B32_t16_e64 0, /* src0_modifiers */
-                          (i32 (EXTRACT_SUBREG (i64 $src0), sub1)),
-                          0, /* src1_modifiers */
-                          (i32 (EXTRACT_SUBREG (i64 $src0), sub0)),
-                          0, /* src2_modifiers */
-                          (i16 (EXTRACT_SUBREG VGPR_32:$src1, lo16)),
-                          /* clamp */ 0, /* op_sel */ 0)>;
+  def : GCNPat<(rotr i32:$src0, i32:$src1),
+               (V_ALIGNBIT_B32_t16_e64 /* src0_modifiers */ 0, $src0,
+                   /* src1_modifiers */ 0, $src0,
+                   /* src2_modifiers */ 0, (EXTRACT_SUBREG $src1, lo16),
+                   /* clamp */ 0, /* op_sel */ 0)>;
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JanekvO wrote:

What's changed? I think it'd be best to move any drive-by format fixes in a separate patch

https://github.com/llvm/llvm-project/pull/140694