1; RUN: opt %loadNPMPolly -aa-pipeline=basic-aa -polly-stmt-granularity=bb '-passes=print<polly-function-scops>' -polly-allow-modref-calls \ 2; RUN: -disable-output < %s 2>&1 | FileCheck %s 3; RUN: opt %loadNPMPolly -aa-pipeline=basic-aa -passes=polly-codegen -disable-output \ 4; RUN: -polly-allow-modref-calls < %s 5; 6; Verify that we model the read access of the gcread intrinsic 7; correctly, thus that A is read by it but B is not. 8; 9; CHECK: Stmt_for_body 10; CHECK-NEXT: Domain := 11; CHECK-NEXT: { Stmt_for_body[i0] : 0 <= i0 <= 1023 }; 12; CHECK-NEXT: Schedule := 13; CHECK-NEXT: { Stmt_for_body[i0] -> [i0] }; 14; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] 15; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_A[o0] }; 16; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] 17; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_dummyloc[0] }; 18; CHECK-NEXT: ReadAccess := [Reduction Type: NONE] 19; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_B[i0] }; 20; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] 21; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_A[i0] }; 22; 23; void jd(int *restirct A, int *restrict B) { 24; char **dummyloc; 25; for (int i = 0; i < 1024; i++) { 26; char *dummy = @llvm.gcread(A, nullptr); 27; *dummyloc = dummy; 28; A[i] = B[i]; 29; } 30; } 31; 32target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 33 34define void @jd(ptr noalias %A, ptr noalias %B) gc "dummy" { 35entry: 36 %dummyloc = alloca ptr 37 br label %entry.split 38 39entry.split: ; preds = %entry 40 br label %for.body 41 42for.body: ; preds = %entry.split, %for.inc 43 %i = phi i64 [ 0, %entry.split ], [ %i.next, %for.inc ] 44 %arrayidx = getelementptr inbounds i32, ptr %A, i64 %i 45 %arrayidx1 = getelementptr inbounds i32, ptr %B, i64 %i 46 %dummy = call ptr @f(ptr %arrayidx, ptr null) 47 store ptr %dummy, ptr %dummyloc, align 4 48 %tmp = load i32, ptr %arrayidx1 49 store i32 %tmp, ptr %arrayidx, align 4 50 br label %for.inc 51 52for.inc: ; preds = %for.body 53 %i.next = add nuw nsw i64 %i, 1 54 %exitcond = icmp ne i64 %i.next, 1024 55 br i1 %exitcond, label %for.body, label %for.end 56 57for.end: ; preds = %for.inc 58 ret void 59} 60 61declare ptr @f(ptr, ptr) #0 62 63attributes #0 = { argmemonly readonly nounwind } 64