[llvm] [LV] Convert gather loads with constant stride into strided loads (PR #147297)

[Mel Chen via llvm-commits]

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@@ -31,41 +31,44 @@ define void @foo4(ptr nocapture %A, ptr nocapture readonly %B, ptr nocapture rea
 ; RV32-NEXT:    [[TMP4:%.*]] = icmp ult ptr [[TMP3]], [[B]]
 ; RV32-NEXT:    [[TMP5:%.*]] = or i1 [[TMP4]], [[MUL_OVERFLOW3]]
 ; RV32-NEXT:    [[TMP6:%.*]] = or i1 [[TMP2]], [[TMP5]]
-; RV32-NEXT:    br i1 [[TMP6]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK1:%.*]]
+; RV32-NEXT:    br i1 [[TMP6]], label [[SCALAR_PH:%.*]], label [[VECTOR_MEMCHECK:%.*]]
 ; RV32:       vector.memcheck:
-; RV32-NEXT:    [[SCEVGEP1:%.*]] = getelementptr i8, ptr [[TRIGGER:%.*]], i32 39940
-; RV32-NEXT:    [[SCEVGEP:%.*]] = getelementptr i8, ptr [[A]], i32 79880
-; RV32-NEXT:    [[SCEVGEP2:%.*]] = getelementptr i8, ptr [[B]], i32 159752
-; RV32-NEXT:    [[BOUND0:%.*]] = icmp ult ptr [[TRIGGER]], [[SCEVGEP]]
-; RV32-NEXT:    [[BOUND1:%.*]] = icmp ult ptr [[A]], [[SCEVGEP1]]
+; RV32-NEXT:    [[SCEVGEP:%.*]] = getelementptr i8, ptr [[TRIGGER:%.*]], i32 39940
+; RV32-NEXT:    [[SCEVGEP4:%.*]] = getelementptr i8, ptr [[A]], i32 79880
+; RV32-NEXT:    [[SCEVGEP5:%.*]] = getelementptr i8, ptr [[B]], i32 159752
+; RV32-NEXT:    [[BOUND0:%.*]] = icmp ult ptr [[TRIGGER]], [[SCEVGEP4]]
+; RV32-NEXT:    [[BOUND1:%.*]] = icmp ult ptr [[A]], [[SCEVGEP]]
 ; RV32-NEXT:    [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
-; RV32-NEXT:    [[BOUND03:%.*]] = icmp ult ptr [[A]], [[SCEVGEP2]]
-; RV32-NEXT:    [[BOUND14:%.*]] = icmp ult ptr [[B]], [[SCEVGEP]]
-; RV32-NEXT:    [[FOUND_CONFLICT5:%.*]] = and i1 [[BOUND03]], [[BOUND14]]
-; RV32-NEXT:    [[CONFLICT_RDX:%.*]] = or i1 [[FOUND_CONFLICT]], [[FOUND_CONFLICT5]]
+; RV32-NEXT:    [[BOUND06:%.*]] = icmp ult ptr [[A]], [[SCEVGEP5]]
+; RV32-NEXT:    [[BOUND17:%.*]] = icmp ult ptr [[B]], [[SCEVGEP4]]
+; RV32-NEXT:    [[FOUND_CONFLICT8:%.*]] = and i1 [[BOUND06]], [[BOUND17]]
+; RV32-NEXT:    [[CONFLICT_RDX:%.*]] = or i1 [[FOUND_CONFLICT]], [[FOUND_CONFLICT8]]
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Mel-Chen wrote:

26c8958b899fc6472fafc41ae57a7468ee0e1906

https://github.com/llvm/llvm-project/pull/147297