[llvm] [LV]Initial support for safe distance in predicated DataWithEVL vectorization mode. (PR #102897)

[Florian Hahn via llvm-commits]

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@@ -29,21 +29,21 @@ define void @test(ptr %p) {
 ; IF-EVL:       vector.body:
 ; IF-EVL-NEXT:    [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ]
 ; IF-EVL-NEXT:    [[EVL_BASED_IV:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_EVL_NEXT:%.*]], [[VECTOR_BODY]] ]
-; IF-EVL-NEXT:    [[TMP5:%.*]] = sub i64 200, [[EVL_BASED_IV]]
-; IF-EVL-NEXT:    [[TMP6:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[TMP5]], i32 2, i1 true)
-; IF-EVL-NEXT:    [[TMP7:%.*]] = add i64 [[EVL_BASED_IV]], 0
-; IF-EVL-NEXT:    [[TMP8:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[TMP7]]
-; IF-EVL-NEXT:    [[TMP9:%.*]] = getelementptr i64, ptr [[TMP8]], i32 0
-; IF-EVL-NEXT:    [[VP_OP_LOAD:%.*]] = call <vscale x 2 x i64> @llvm.vp.load.nxv2i64.p0(ptr align 8 [[TMP9]], <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer), i32 [[TMP6]])
-; IF-EVL-NEXT:    [[TMP10:%.*]] = add i64 [[TMP7]], 200
-; IF-EVL-NEXT:    [[TMP11:%.*]] = getelementptr i64, ptr [[P]], i64 [[TMP10]]
-; IF-EVL-NEXT:    [[TMP12:%.*]] = getelementptr i64, ptr [[TMP11]], i32 0
-; IF-EVL-NEXT:    call void @llvm.vp.store.nxv2i64.p0(<vscale x 2 x i64> [[VP_OP_LOAD]], ptr align 8 [[TMP12]], <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer), i32 [[TMP6]])
-; IF-EVL-NEXT:    [[TMP13:%.*]] = zext i32 [[TMP6]] to i64
-; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP13]], [[EVL_BASED_IV]]
+; IF-EVL-NEXT:    [[AVL:%.*]] = sub i64 200, [[EVL_BASED_IV]]
+; IF-EVL-NEXT:    [[TMP5:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 2, i1 true)
+; IF-EVL-NEXT:    [[TMP6:%.*]] = add i64 [[EVL_BASED_IV]], 0
+; IF-EVL-NEXT:    [[TMP7:%.*]] = getelementptr i64, ptr [[P:%.*]], i64 [[TMP6]]
+; IF-EVL-NEXT:    [[TMP8:%.*]] = getelementptr i64, ptr [[TMP7]], i32 0
+; IF-EVL-NEXT:    [[VP_OP_LOAD:%.*]] = call <vscale x 2 x i64> @llvm.vp.load.nxv2i64.p0(ptr align 8 [[TMP8]], <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer), i32 [[TMP5]])
+; IF-EVL-NEXT:    [[TMP9:%.*]] = add i64 [[TMP6]], 200
+; IF-EVL-NEXT:    [[TMP10:%.*]] = getelementptr i64, ptr [[P]], i64 [[TMP9]]
+; IF-EVL-NEXT:    [[TMP11:%.*]] = getelementptr i64, ptr [[TMP10]], i32 0
+; IF-EVL-NEXT:    call void @llvm.vp.store.nxv2i64.p0(<vscale x 2 x i64> [[VP_OP_LOAD]], ptr align 8 [[TMP11]], <vscale x 2 x i1> shufflevector (<vscale x 2 x i1> insertelement (<vscale x 2 x i1> poison, i1 true, i64 0), <vscale x 2 x i1> poison, <vscale x 2 x i32> zeroinitializer), i32 [[TMP5]])
+; IF-EVL-NEXT:    [[TMP12:%.*]] = zext i32 [[TMP5]] to i64
+; IF-EVL-NEXT:    [[INDEX_EVL_NEXT]] = add i64 [[TMP12]], [[EVL_BASED_IV]]
 ; IF-EVL-NEXT:    [[INDEX_NEXT]] = add i64 [[INDEX]], [[TMP4]]
-; IF-EVL-NEXT:    [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
-; IF-EVL-NEXT:    br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
+; IF-EVL-NEXT:    [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], [[N_VEC]]
+; IF-EVL-NEXT:    br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
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fhahn wrote:

just renaming

https://github.com/llvm/llvm-project/pull/102897