forked from OSchip/llvm-project
59 lines
2.1 KiB
LLVM
59 lines
2.1 KiB
LLVM
; RUN: opt %loadPolly -basicaa -polly-scops -analyze -polly-allow-modref-calls \
|
|
; RUN: < %s | FileCheck %s
|
|
; RUN: opt %loadPolly -basicaa -polly-codegen -polly-allow-modref-calls \
|
|
; RUN: -disable-output < %s
|
|
;
|
|
; Verify that we model the may-write access of the prefetch intrinsic
|
|
; correctly, thus that A is accessed by it but B is not.
|
|
;
|
|
; 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: MayWriteAccess := [Reduction Type: NONE]
|
|
; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_A[o0] };
|
|
; 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[i0] };
|
|
;
|
|
; void jd(int *restirct A, int *restrict B) {
|
|
; for (int i = 0; i < 1024; i++) {
|
|
; @llvm.prefetch(A);
|
|
; A[i] = 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.cond
|
|
|
|
for.cond: ; preds = %for.inc, %entry
|
|
%indvars.iv = phi i64 [ %indvars.iv.next, %for.inc ], [ 0, %entry ]
|
|
%exitcond = icmp ne i64 %indvars.iv, 1024
|
|
br i1 %exitcond, label %for.body, label %for.end
|
|
|
|
for.body: ; preds = %for.cond
|
|
%arrayidx = getelementptr inbounds i32, i32* %A, i64 %indvars.iv
|
|
%arrayidx2 = getelementptr inbounds i32, i32* %B, i64 %indvars.iv
|
|
%bc = bitcast i32* %arrayidx to i8*
|
|
call void @f(i8* %bc, i32 1, i32 1, i32 1)
|
|
%tmp = load i32, i32* %arrayidx2
|
|
store i32 %tmp, i32* %arrayidx, align 4
|
|
br label %for.inc
|
|
|
|
for.inc: ; preds = %for.body
|
|
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
|
|
br label %for.cond
|
|
|
|
for.end: ; preds = %for.cond
|
|
ret void
|
|
}
|
|
|
|
declare void @f(i8*, i32, i32, i32) #0
|
|
|
|
attributes #0 = { argmemonly nounwind }
|