1; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s --check-prefix=SCOPES 2; 3; Check that we create alias scopes that indicate the accesses to A, B and C cannot alias in any way. 4; 5; SCOPES-LABEL: polly.stmt.for.body: 6; SCOPES: %[[BIdx:[._a-zA-Z0-9]*]] = getelementptr{{.*}} i32* %B, i64 %polly.indvar 7; SCOPES: load i32, i32* %[[BIdx]], align 4, !alias.scope ![[AliasScopeB:[0-9]*]], !noalias ![[NoAliasB:[0-9]*]] 8; SCOPES: %[[CIdx:[._a-zA-Z0-9]*]] = getelementptr{{.*}} float* %C, i64 %polly.indvar 9; SCOPES: load float, float* %[[CIdx]], align 4, !alias.scope ![[AliasScopeC:[0-9]*]], !noalias ![[NoAliasC:[0-9]*]] 10; SCOPES: %[[AIdx:[._a-zA-Z0-9]*]] = getelementptr{{.*}} i32* %A, i64 %polly.indvar 11; SCOPES: store i32 %{{[._a-zA-Z0-9]*}}, i32* %[[AIdx]], align 4, !alias.scope ![[AliasScopeA:[0-9]*]], !noalias ![[NoAliasA:[0-9]*]] 12; 13; SCOPES: ![[AliasScopeB]] = distinct !{![[AliasScopeB]], !{{[0-9]*}}, !"polly.alias.scope.MemRef_B"} 14; SCOPES: ![[NoAliasB]] = !{ 15; SCOPES-DAG: ![[AliasScopeA]] 16; SCOPES-DAG: ![[AliasScopeC]] 17; SCOPES: } 18; SCOPES-DAG: ![[AliasScopeA]] = distinct !{![[AliasScopeA]], !{{[0-9]*}}, !"polly.alias.scope.MemRef_A"} 19; SCOPES-DAG: ![[AliasScopeC]] = distinct !{![[AliasScopeC]], !{{[0-9]*}}, !"polly.alias.scope.MemRef_C"} 20; SCOPES: ![[NoAliasC]] = !{ 21; SCOPES-DAG: ![[AliasScopeA]] 22; SCOPES-DAG: ![[AliasScopeB]] 23; SCOPES: } 24; SCOPES: ![[NoAliasA]] = !{ 25; SCOPES-DAG: ![[AliasScopeB]] 26; SCOPES-DAG: ![[AliasScopeC]] 27; SCOPES: } 28; 29; void jd(int *A, int *B, float *C) { 30; for (int i = 0; i < 1024; i++) 31; A[i] = B[i] + C[i]; 32; } 33; 34target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 35 36define void @jd(i32* %A, i32* %B, float* %C) { 37entry: 38 br label %for.cond 39 40for.cond: ; preds = %for.inc, %entry 41 %indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ] 42 %exitcond = icmp ne i64 %indvars.iv, 1024 43 br i1 %exitcond, label %for.body, label %for.end 44 45for.body: ; preds = %for.cond 46 %arrayidx = getelementptr inbounds i32, i32* %B, i64 %indvars.iv 47 %tmp = load i32, i32* %arrayidx, align 4 48 %conv = sitofp i32 %tmp to float 49 %arrayidx2 = getelementptr inbounds float, float* %C, i64 %indvars.iv 50 %tmp1 = load float, float* %arrayidx2, align 4 51 %add = fadd fast float %conv, %tmp1 52 %conv3 = fptosi float %add to i32 53 %arrayidx5 = getelementptr inbounds i32, i32* %A, i64 %indvars.iv 54 store i32 %conv3, i32* %arrayidx5, align 4 55 br label %for.inc 56 57for.inc: ; preds = %for.body 58 %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 59 br label %for.cond 60 61for.end: ; preds = %for.cond 62 ret void 63} 64