diff options
| -rw-r--r-- | polly/test/ScopInfo/multidim_gep_pointercast2.ll | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/polly/test/ScopInfo/multidim_gep_pointercast2.ll b/polly/test/ScopInfo/multidim_gep_pointercast2.ll new file mode 100644 index 00000000000..2f590d1eac5 --- /dev/null +++ b/polly/test/ScopInfo/multidim_gep_pointercast2.ll @@ -0,0 +1,49 @@ +; RUN: opt %loadPolly -polly-scops -analyze < %s | FileCheck %s +; +; Verfy that we do not use the GetElementPtr information to delinearize A +; because of the cast in-between. Use the single-dimensional modeling instead. +; +; void f(short A[][2]) { +; for (int i = 0; i < 100; i++) +; *((long *)&A[4 * i][0]) = 0; +; } +; +target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" + +define void @f([2 x i16]* %A) { +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, 100 + br i1 %exitcond, label %for.body, label %for.end + +for.body: ; preds = %for.cond + %tmp = shl nsw i64 %indvars.iv, 2 + %arrayidx1 = getelementptr inbounds [2 x i16], [2 x i16]* %A, i64 %tmp, i64 0 + %tmp2 = bitcast i16* %arrayidx1 to i64* + store i64 0, i64* %tmp2, align 8 + 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 +} + + +; CHECK: Arrays { +; CHECK-NEXT: i64 MemRef_A[*]; // Element size 8 +; CHECK-NEXT: } +; CHECK: Statements { +; CHECK-NEXT: Stmt_for_body +; CHECK-NEXT: Domain := +; CHECK-NEXT: { Stmt_for_body[i0] : 0 <= i0 <= 99 }; +; CHECK-NEXT: Schedule := +; CHECK-NEXT: { Stmt_for_body[i0] -> [i0] }; +; CHECK-NEXT: MustWriteAccess := [Reduction Type: NONE] [Scalar: 0] +; CHECK-NEXT: { Stmt_for_body[i0] -> MemRef_A[2i0] }; +; CHECK-NEXT: } |
