; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt < %s -S -mtriple=x86_64-unknown -mattr=+avx -passes=slp-vectorizer | FileCheck %s
;void phiUsingLoads(int *restrict A, int *restrict B) {
; int tmp0, tmp1, tmp2, tmp3;
; for (int i = 0; i < 100; i++) {
; if (A[0] == 0) {
; tmp0 = A[i + 0];
; tmp1 = A[i + 1];
; tmp2 = A[i + 2];
; tmp3 = A[i + 3];
; } else if (A[25] == 0) {
; tmp0 = A[i + 0];
; tmp1 = A[i + 1];
; tmp2 = A[i + 2];
; tmp3 = A[i + 3];
; } else if (A[50] == 0) {
; tmp0 = A[i + 0];
; tmp1 = A[i + 1];
; tmp2 = A[i + 2];
; tmp3 = A[i + 3];
; } else if (A[75] == 0) {
; tmp0 = A[i + 0];
; tmp1 = A[i + 1];
; tmp2 = A[i + 3];
; tmp3 = A[i + 2];
; }
; }
; B[0] = tmp0;
; B[1] = tmp1;
; B[2] = tmp2;
; B[3] = tmp3;
;}
; Function Attrs: norecurse nounwind uwtable
define void @phiUsingLoads(ptr noalias nocapture readonly %A, ptr noalias nocapture %B) local_unnamed_addr #0 {
; CHECK-LABEL: @phiUsingLoads(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[A:%.*]], align 4
; CHECK-NEXT: [[CMP1:%.*]] = icmp eq i32 [[TMP0]], 0
; CHECK-NEXT: [[ARRAYIDX12:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 25
; CHECK-NEXT: [[ARRAYIDX28:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 50
; CHECK-NEXT: [[ARRAYIDX44:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 75
; CHECK-NEXT: br label [[FOR_BODY:%.*]]
; CHECK: for.cond.cleanup:
; CHECK-NEXT: store <4 x i32> [[TMP14:%.*]], ptr [[B:%.*]], align 4
; CHECK-NEXT: ret void
; CHECK: for.body:
; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_INC:%.*]] ]
; CHECK-NEXT: [[TMP2:%.*]] = phi <4 x i32> [ undef, [[ENTRY]] ], [ [[TMP14]], [[FOR_INC]] ]
; CHECK-NEXT: br i1 [[CMP1]], label [[IF_THEN:%.*]], label [[IF_ELSE:%.*]]
; CHECK: if.then:
; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP4:%.*]] = load <4 x i32>, ptr [[ARRAYIDX2]], align 4
; CHECK-NEXT: br label [[FOR_INC]]
; CHECK: if.else:
; CHECK-NEXT: [[TMP5:%.*]] = load i32, ptr [[ARRAYIDX12]], align 4
; CHECK-NEXT: [[CMP13:%.*]] = icmp eq i32 [[TMP5]], 0
; CHECK-NEXT: br i1 [[CMP13]], label [[IF_THEN14:%.*]], label [[IF_ELSE27:%.*]]
; CHECK: if.then14:
; CHECK-NEXT: [[ARRAYIDX17:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP7:%.*]] = load <4 x i32>, ptr [[ARRAYIDX17]], align 4
; CHECK-NEXT: br label [[FOR_INC]]
; CHECK: if.else27:
; CHECK-NEXT: [[TMP8:%.*]] = load i32, ptr [[ARRAYIDX28]], align 4
; CHECK-NEXT: [[CMP29:%.*]] = icmp eq i32 [[TMP8]], 0
; CHECK-NEXT: br i1 [[CMP29]], label [[IF_THEN30:%.*]], label [[IF_ELSE43:%.*]]
; CHECK: if.then30:
; CHECK-NEXT: [[ARRAYIDX33:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP10:%.*]] = load <4 x i32>, ptr [[ARRAYIDX33]], align 4
; CHECK-NEXT: br label [[FOR_INC]]
; CHECK: if.else43:
; CHECK-NEXT: [[TMP11:%.*]] = load i32, ptr [[ARRAYIDX44]], align 4
; CHECK-NEXT: [[CMP45:%.*]] = icmp eq i32 [[TMP11]], 0
; CHECK-NEXT: br i1 [[CMP45]], label [[IF_THEN46:%.*]], label [[FOR_INC]]
; CHECK: if.then46:
; CHECK-NEXT: [[ARRAYIDX49:%.*]] = getelementptr inbounds i32, ptr [[A]], i64 [[INDVARS_IV]]
; CHECK-NEXT: [[TMP13:%.*]] = load <4 x i32>, ptr [[ARRAYIDX49]], align 4
; CHECK-NEXT: [[SHUFFLE:%.*]] = shufflevector <4 x i32> [[TMP13]], <4 x i32> poison, <4 x i32> <i32 0, i32 1, i32 3, i32 2>
; CHECK-NEXT: br label [[FOR_INC]]
; CHECK: for.inc:
; CHECK-NEXT: [[TMP14]] = phi <4 x i32> [ [[TMP4]], [[IF_THEN]] ], [ [[TMP7]], [[IF_THEN14]] ], [ [[TMP10]], [[IF_THEN30]] ], [ [[SHUFFLE]], [[IF_THEN46]] ], [ [[TMP2]], [[IF_ELSE43]] ]
; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
; CHECK-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 100
; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]]
;
entry:
%0 = load i32, ptr %A, align 4
%cmp1 = icmp eq i32 %0, 0
%arrayidx12 = getelementptr inbounds i32, ptr %A, i64 25
%arrayidx28 = getelementptr inbounds i32, ptr %A, i64 50
%arrayidx44 = getelementptr inbounds i32, ptr %A, i64 75
br label %for.body
for.cond.cleanup: ; preds = %for.inc
store i32 %tmp0.1, ptr %B, align 4
%arrayidx64 = getelementptr inbounds i32, ptr %B, i64 1
store i32 %tmp1.1, ptr %arrayidx64, align 4
%arrayidx65 = getelementptr inbounds i32, ptr %B, i64 2
store i32 %tmp2.1, ptr %arrayidx65, align 4
%arrayidx66 = getelementptr inbounds i32, ptr %B, i64 3
store i32 %tmp3.1, ptr %arrayidx66, align 4
ret void
for.body: ; preds = %for.inc, %entry
%indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.inc ]
%tmp3.0111 = phi i32 [ undef, %entry ], [ %tmp3.1, %for.inc ]
%tmp2.0110 = phi i32 [ undef, %entry ], [ %tmp2.1, %for.inc ]
%tmp1.0109 = phi i32 [ undef, %entry ], [ %tmp1.1, %for.inc ]
%tmp0.0108 = phi i32 [ undef, %entry ], [ %tmp0.1, %for.inc ]
br i1 %cmp1, label %if.then, label %if.else
if.then: ; preds = %for.body
%arrayidx2 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%1 = load i32, ptr %arrayidx2, align 4
%2 = add nuw nsw i64 %indvars.iv, 1
%arrayidx5 = getelementptr inbounds i32, ptr %A, i64 %2
%3 = load i32, ptr %arrayidx5, align 4
%4 = add nuw nsw i64 %indvars.iv, 2
%arrayidx8 = getelementptr inbounds i32, ptr %A, i64 %4
%5 = load i32, ptr %arrayidx8, align 4
%6 = add nuw nsw i64 %indvars.iv, 3
%arrayidx11 = getelementptr inbounds i32, ptr %A, i64 %6
%7 = load i32, ptr %arrayidx11, align 4
br label %for.inc
if.else: ; preds = %for.body
%8 = load i32, ptr %arrayidx12, align 4
%cmp13 = icmp eq i32 %8, 0
br i1 %cmp13, label %if.then14, label %if.else27
if.then14: ; preds = %if.else
%arrayidx17 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%9 = load i32, ptr %arrayidx17, align 4
%10 = add nuw nsw i64 %indvars.iv, 1
%arrayidx20 = getelementptr inbounds i32, ptr %A, i64 %10
%11 = load i32, ptr %arrayidx20, align 4
%12 = add nuw nsw i64 %indvars.iv, 2
%arrayidx23 = getelementptr inbounds i32, ptr %A, i64 %12
%13 = load i32, ptr %arrayidx23, align 4
%14 = add nuw nsw i64 %indvars.iv, 3
%arrayidx26 = getelementptr inbounds i32, ptr %A, i64 %14
%15 = load i32, ptr %arrayidx26, align 4
br label %for.inc
if.else27: ; preds = %if.else
%16 = load i32, ptr %arrayidx28, align 4
%cmp29 = icmp eq i32 %16, 0
br i1 %cmp29, label %if.then30, label %if.else43
if.then30: ; preds = %if.else27
%arrayidx33 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%17 = load i32, ptr %arrayidx33, align 4
%18 = add nuw nsw i64 %indvars.iv, 1
%arrayidx36 = getelementptr inbounds i32, ptr %A, i64 %18
%19 = load i32, ptr %arrayidx36, align 4
%20 = add nuw nsw i64 %indvars.iv, 2
%arrayidx39 = getelementptr inbounds i32, ptr %A, i64 %20
%21 = load i32, ptr %arrayidx39, align 4
%22 = add nuw nsw i64 %indvars.iv, 3
%arrayidx42 = getelementptr inbounds i32, ptr %A, i64 %22
%23 = load i32, ptr %arrayidx42, align 4
br label %for.inc
if.else43: ; preds = %if.else27
%24 = load i32, ptr %arrayidx44, align 4
%cmp45 = icmp eq i32 %24, 0
br i1 %cmp45, label %if.then46, label %for.inc
if.then46: ; preds = %if.else43
%arrayidx49 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%25 = load i32, ptr %arrayidx49, align 4
%26 = add nuw nsw i64 %indvars.iv, 1
%arrayidx52 = getelementptr inbounds i32, ptr %A, i64 %26
%27 = load i32, ptr %arrayidx52, align 4
%28 = add nuw nsw i64 %indvars.iv, 3
%arrayidx55 = getelementptr inbounds i32, ptr %A, i64 %28
%29 = load i32, ptr %arrayidx55, align 4
%30 = add nuw nsw i64 %indvars.iv, 2
%arrayidx58 = getelementptr inbounds i32, ptr %A, i64 %30
%31 = load i32, ptr %arrayidx58, align 4
br label %for.inc
for.inc: ; preds = %if.then, %if.then30, %if.else43, %if.then46, %if.then14
%tmp0.1 = phi i32 [ %1, %if.then ], [ %9, %if.then14 ], [ %17, %if.then30 ], [ %25, %if.then46 ], [ %tmp0.0108, %if.else43 ]
%tmp1.1 = phi i32 [ %3, %if.then ], [ %11, %if.then14 ], [ %19, %if.then30 ], [ %27, %if.then46 ], [ %tmp1.0109, %if.else43 ]
%tmp2.1 = phi i32 [ %5, %if.then ], [ %13, %if.then14 ], [ %21, %if.then30 ], [ %29, %if.then46 ], [ %tmp2.0110, %if.else43 ]
%tmp3.1 = phi i32 [ %7, %if.then ], [ %15, %if.then14 ], [ %23, %if.then30 ], [ %31, %if.then46 ], [ %tmp3.0111, %if.else43 ]
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, 100
br i1 %exitcond, label %for.cond.cleanup, label %for.body
}
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