1; RUN: opt %loadPolly -polly-print-ast -disable-output < %s | FileCheck %s
2; RUN: opt %loadPolly -polly-codegen -S < %s | FileCheck %s -check-prefix=CODEGEN
3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4
5define void @foo(i8* %start, i8* %end) {
6entry:
7  %A = alloca i32
8  br label %body
9
10body:
11  %ptr = phi i8* [ %start, %entry ], [ %ptr2, %body ]
12  %ptr2 = getelementptr inbounds i8, i8* %ptr, i64 1
13  %cmp = icmp eq i8* %ptr2, %end
14  store i32 42, i32* %A
15  br i1 %cmp, label %exit, label %body
16
17exit:
18  ret void
19}
20
21; CHECK: for (int c0 = 0; c0 < -start + end; c0 += 1)
22; CHECK:   Stmt_body(c0);
23
24; CODEGEN-LABEL: polly.start:
25; CODEGEN-NEXT:   %[[r0:[._a-zA-Z0-9]*]] = ptrtoint i8* %start to i64
26; CODEGEN-NEXT:   %[[r1:[._a-zA-Z0-9]*]] = sub nsw i64 0, %[[r0]]
27; CODEGEN-NEXT:   %[[r2:[._a-zA-Z0-9]*]] = ptrtoint i8* %end to i64
28; CODEGEN-NEXT:   %[[r4:[._a-zA-Z0-9]*]] = add nsw i64 %[[r1]], %[[r2]]
29
30