1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py 2; RUN: opt -S -passes=loop-vectorize,dce,instcombine -force-vector-width=2 -force-vector-interleave=2 < %s | FileCheck %s 3 4target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128" 5 6;PR 15830. 7 8; When scalarizing stores we need to preserve the original order. 9; Make sure that we are extracting in the correct order (0101, and not 0011). 10 11define i32 @foo(ptr nocapture %A) { 12; CHECK-LABEL: @foo( 13; CHECK-NEXT: entry: 14; CHECK-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] 15; CHECK: vector.ph: 16; CHECK-NEXT: br label [[VECTOR_BODY:%.*]] 17; CHECK: vector.body: 18; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] 19; CHECK-NEXT: [[VEC_IND:%.*]] = phi <2 x i64> [ <i64 0, i64 1>, [[VECTOR_PH]] ], [ [[VEC_IND_NEXT:%.*]], [[VECTOR_BODY]] ] 20; CHECK-NEXT: [[TMP0:%.*]] = shl nsw <2 x i64> [[VEC_IND]], splat (i64 2) 21; CHECK-NEXT: [[STEP_ADD:%.*]] = shl <2 x i64> [[VEC_IND]], splat (i64 2) 22; CHECK-NEXT: [[TMP1:%.*]] = add <2 x i64> [[STEP_ADD]], splat (i64 8) 23; CHECK-NEXT: [[TMP2:%.*]] = extractelement <2 x i64> [[TMP0]], i64 0 24; CHECK-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[TMP2]] 25; CHECK-NEXT: [[TMP4:%.*]] = extractelement <2 x i64> [[TMP0]], i64 1 26; CHECK-NEXT: [[TMP5:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP4]] 27; CHECK-NEXT: [[TMP6:%.*]] = extractelement <2 x i64> [[TMP1]], i64 0 28; CHECK-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP6]] 29; CHECK-NEXT: [[TMP8:%.*]] = extractelement <2 x i64> [[TMP1]], i64 1 30; CHECK-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[TMP8]] 31; CHECK-NEXT: store i32 4, ptr [[TMP3]], align 4 32; CHECK-NEXT: store i32 4, ptr [[TMP5]], align 4 33; CHECK-NEXT: store i32 4, ptr [[TMP7]], align 4 34; CHECK-NEXT: store i32 4, ptr [[TMP9]], align 4 35; CHECK-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 4 36; CHECK-NEXT: [[VEC_IND_NEXT]] = add <2 x i64> [[VEC_IND]], splat (i64 4) 37; CHECK-NEXT: [[TMP10:%.*]] = icmp eq i64 [[INDEX_NEXT]], 10000 38; CHECK-NEXT: br i1 [[TMP10]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] 39; CHECK: middle.block: 40; CHECK-NEXT: br i1 true, label [[FOR_END:%.*]], label [[SCALAR_PH]] 41; CHECK: scalar.ph: 42; CHECK-NEXT: br label [[FOR_BODY:%.*]] 43; CHECK: for.body: 44; CHECK-NEXT: br i1 poison, label [[FOR_END]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![0-9]+]] 45; CHECK: for.end: 46; CHECK-NEXT: ret i32 undef 47; 48entry: 49 br label %for.body 50 51for.body: 52 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] 53 %0 = shl nsw i64 %indvars.iv, 2 54 %arrayidx = getelementptr inbounds i32, ptr %A, i64 %0 55 store i32 4, ptr %arrayidx, align 4 56 %indvars.iv.next = add i64 %indvars.iv, 1 57 %lftr.wideiv = trunc i64 %indvars.iv.next to i32 58 %exitcond = icmp eq i32 %lftr.wideiv, 10000 59 br i1 %exitcond, label %for.end, label %for.body 60 61for.end: 62 ret i32 undef 63} 64 65 66