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1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py2; RUN: opt < %s -passes='require<loops>,gvn' -enable-split-backedge-in-load-pre -S | FileCheck %s3 4define dso_local void @test1(ptr nocapture readonly %aa, ptr nocapture %bb) local_unnamed_addr {5; CHECK-LABEL: @test1(6; CHECK-NEXT: entry:7; CHECK-NEXT: [[IDX:%.*]] = getelementptr inbounds i32, ptr [[BB:%.*]], i64 18; CHECK-NEXT: [[IDX2:%.*]] = getelementptr inbounds i32, ptr [[AA:%.*]], i64 19; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[IDX2]], align 410; CHECK-NEXT: store i32 [[TMP0]], ptr [[IDX]], align 411; CHECK-NEXT: br label [[FOR_BODY:%.*]]12; CHECK: for.body:13; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ [[TMP0]], [[ENTRY:%.*]] ], [ [[DOTPRE:%.*]], [[FOR_BODY_FOR_BODY_CRIT_EDGE:%.*]] ]14; CHECK-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY_FOR_BODY_CRIT_EDGE]] ]15; CHECK-NEXT: [[IDX4:%.*]] = getelementptr inbounds i32, ptr [[AA]], i64 [[INDVARS_IV]]16; CHECK-NEXT: [[TMP2:%.*]] = load i32, ptr [[IDX4]], align 4, !llvm.access.group !017; CHECK-NEXT: [[MUL:%.*]] = mul nsw i32 [[TMP1]], [[TMP2]]18; CHECK-NEXT: store i32 [[MUL]], ptr [[IDX4]], align 4, !llvm.access.group !019; CHECK-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 120; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDVARS_IV_NEXT]], 10021; CHECK-NEXT: br i1 [[EXITCOND]], label [[FOR_BODY_FOR_BODY_CRIT_EDGE]], label [[FOR_END:%.*]]22; CHECK: for.body.for.body_crit_edge:23; CHECK-NEXT: [[DOTPRE]] = load i32, ptr [[IDX]], align 4, !llvm.access.group !024; CHECK-NEXT: br label [[FOR_BODY]]25; CHECK: for.end:26; CHECK-NEXT: ret void27;28entry:29 %idx = getelementptr inbounds i32, ptr %bb, i64 130 %idx2 = getelementptr inbounds i32, ptr %aa, i64 131 %0 = load i32, ptr %idx2, align 432 store i32 %0, ptr %idx, align 433 br label %for.body34 35for.body:36 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ]37 %idx4 = getelementptr inbounds i32, ptr %aa, i64 %indvars.iv38 %1 = load i32, ptr %idx4, align 4, !llvm.access.group !039 %2 = load i32, ptr %idx, align 4, !llvm.access.group !040 %mul = mul nsw i32 %2, %141 store i32 %mul, ptr %idx4, align 4, !llvm.access.group !042 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 143 %exitcond = icmp ne i64 %indvars.iv.next, 10044 br i1 %exitcond, label %for.body, label %for.end45 46for.end:47 ret void48}49 50!0 = distinct !{}51 52define dso_local void @test2(ptr nocapture readonly %aa, ptr nocapture %bb) local_unnamed_addr {53; CHECK-LABEL: @test2(54; CHECK-NEXT: entry:55; CHECK-NEXT: br label [[FOR_BODY:%.*]]56; CHECK: for.body:57; CHECK-NEXT: [[IDX:%.*]] = getelementptr inbounds i32, ptr [[BB:%.*]], i64 158; CHECK-NEXT: [[IDX2:%.*]] = getelementptr inbounds i32, ptr [[AA:%.*]], i64 159; CHECK-NEXT: [[TMP0:%.*]] = load i32, ptr [[IDX2]], align 460; CHECK-NEXT: store i32 [[TMP0]], ptr [[IDX]], align 461; CHECK-NEXT: [[DOTPRE:%.*]] = load i32, ptr [[AA]], align 462; CHECK-NEXT: br label [[FOR_BODY2:%.*]]63; CHECK: for.body2:64; CHECK-NEXT: [[TMP1:%.*]] = phi i32 [ [[TMP0]], [[FOR_BODY]] ], [ [[DOTPRE1:%.*]], [[FOR_BODY2_FOR_BODY2_CRIT_EDGE:%.*]] ]65; CHECK-NEXT: [[TMP2:%.*]] = phi i32 [ [[DOTPRE]], [[FOR_BODY]] ], [ [[MUL:%.*]], [[FOR_BODY2_FOR_BODY2_CRIT_EDGE]] ]66; CHECK-NEXT: [[INDVARS2_IV:%.*]] = phi i64 [ 0, [[FOR_BODY]] ], [ 1, [[FOR_BODY2_FOR_BODY2_CRIT_EDGE]] ]67; CHECK-NEXT: [[MUL]] = mul nsw i32 [[TMP1]], [[TMP2]]68; CHECK-NEXT: store i32 [[MUL]], ptr [[AA]], align 4, !llvm.access.group !169; CHECK-NEXT: br i1 true, label [[FOR_BODY2_FOR_BODY2_CRIT_EDGE]], label [[FOR_END:%.*]]70; CHECK: for.body2.for.body2_crit_edge:71; CHECK-NEXT: [[DOTPRE1]] = load i32, ptr [[IDX]], align 4, !llvm.access.group !172; CHECK-NEXT: br label [[FOR_BODY2]]73; CHECK: for.end:74; CHECK-NEXT: br i1 false, label [[FOR_END_FOR_BODY_CRIT_EDGE:%.*]], label [[END:%.*]]75; CHECK: for.end.for.body_crit_edge:76; CHECK-NEXT: br label [[FOR_BODY]]77; CHECK: end:78; CHECK-NEXT: ret void79;80entry:81 br label %for.body82 83for.body:84 %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.end ]85 %idx = getelementptr inbounds i32, ptr %bb, i64 186 %idx2 = getelementptr inbounds i32, ptr %aa, i64 187 %0 = load i32, ptr %idx2, align 488 store i32 %0, ptr %idx, align 489 br label %for.body290 91for.body2:92 %indvars2.iv = phi i64 [ 0, %for.body ], [ %indvars2.iv.next, %for.body2 ]93 %idx4 = getelementptr inbounds i32, ptr %aa, i64 %indvars.iv94 %1 = load i32, ptr %idx4, align 4, !llvm.access.group !195 %2 = load i32, ptr %idx, align 4, !llvm.access.group !196 %mul = mul nsw i32 %2, %197 store i32 %mul, ptr %idx4, align 4, !llvm.access.group !198 %indvars2.iv.next = add nuw nsw i64 %indvars.iv, 199 %exitcond2 = icmp ne i64 %indvars2.iv.next, 100100 br i1 %exitcond2, label %for.body2, label %for.end101 102for.end:103 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1104 %exitcond = icmp ne i64 %indvars.iv.next, 100105 br i1 %exitcond, label %for.body, label %end106 107end:108 ret void109}110 111!1 = distinct !{}112