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; RUN: opt %loadPolly -S -polly-codegen \
; RUN: < %s | FileCheck %s
;
; Check that this will not crash our code generation.
;
; CHECK: polly.start:
;
; void f(int *A, int N) {
; for (int i = 0; i < N / 4; i++)
; A[i] += A[i - 1];
; }
;
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
define void @f(ptr %A, i32 %N) {
bb:
%tmp = sdiv i32 %N, 4
%tmp2 = sext i32 %tmp to i64
br label %bb1
bb1: ; preds = %bb11, %bb
%indvars.iv = phi i64 [ %indvars.iv.next, %bb11 ], [ 0, %bb ]
%tmp3 = icmp slt i64 %indvars.iv, %tmp2
br i1 %tmp3, label %bb4, label %bb12
bb4: ; preds = %bb1
%tmp5 = add nsw i64 %indvars.iv, -1
%tmp6 = getelementptr inbounds i32, ptr %A, i64 %tmp5
%tmp7 = load i32, ptr %tmp6, align 4
%tmp8 = getelementptr inbounds i32, ptr %A, i64 %indvars.iv
%tmp9 = load i32, ptr %tmp8, align 4
%tmp10 = add nsw i32 %tmp9, %tmp7
store i32 %tmp10, ptr %tmp8, align 4
br label %bb11
bb11: ; preds = %bb4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
br label %bb1
bb12: ; preds = %bb1
ret void
}
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