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| ; RUN: opt %loadPolly -basicaa -polly-scops -analyze -polly-allow-modref-calls \
; RUN: < %s | FileCheck %s
; RUN: opt %loadPolly -basicaa -polly-codegen -disable-output \
; RUN: -polly-allow-modref-calls < %s
;
; Check that the call to func will "read" not only the A array but also the
; B array. The reason is the readonly annotation of func.
;
; CHECK: Stmt_for_body
; CHECK-NEXT: Domain :=
; CHECK-NEXT: { Stmt_for_body[i0] : 0 <= i0 <= 1023 };
; CHECK-NEXT: Schedule :=
; CHECK-NEXT: { Stmt_for_body[i0] -> [i0] };
; CHECK-NEXT: ReadAccess := [Reduction Type: NONE]
; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_B[i0] };
; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE]
; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_A[2 + i0] };
; CHECK-DAG: ReadAccess := [Reduction Type: NONE]
; CHECK-DAG: { Stmt_for_body[i0] -> MemRef_B[o0] };
; CHECK-DAG: ReadAccess := [Reduction Type: NONE]
; CHECK-DAG: { Stmt_for_body[i0] -> MemRef_A[o0] };
;
; #pragma readonly
; int func(int *A);
;
; void jd(int *restrict A, int *restrict B) {
; for (int i = 0; i < 1024; i++)
; A[i + 2] = func(A) + B[i];
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @jd(i32* noalias %A, i32* noalias %B) {
entry:
br label %for.body
for.body: ; preds = %entry, %for.inc
%i = phi i64 [ 0, %entry ], [ %i.next, %for.inc ]
%call = call i32 @func(i32* %A)
%arrayidx = getelementptr inbounds i32, i32* %B, i64 %i
%tmp = load i32, i32* %arrayidx, align 4
%add = add nsw i32 %call, %tmp
%tmp1 = add nsw i64 %i, 2
%arrayidx1 = getelementptr inbounds i32, i32* %A, i64 %tmp1
store i32 %add, i32* %arrayidx1, align 4
br label %for.inc
for.inc: ; preds = %for.body
%i.next = add nuw nsw i64 %i, 1
%exitcond = icmp ne i64 %i.next, 1024
br i1 %exitcond, label %for.body, label %for.end
for.end: ; preds = %for.inc
ret void
}
declare i32 @func(i32*) #0
attributes #0 = { nounwind readonly }
|