1 ; RUN: opt < %s -bounds-checking -S | FileCheck %s
2 target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
4 @global = private unnamed_addr constant [10 x i8] c"ola\00mundo\00", align 1
7 ; no checks are possible here
9 define void @f1(i8* nocapture %c) {
11 %0 = load i8* %c, align 1
12 %tobool1 = icmp eq i8 %0, 0
13 br i1 %tobool1, label %while.end, label %while.body
16 %c.addr.02 = phi i8* [ %incdec.ptr, %while.body ], [ %c, %entry ]
17 %incdec.ptr = getelementptr inbounds i8* %c.addr.02, i64 -1
18 store i8 100, i8* %c.addr.02, align 1
19 %1 = load i8* %incdec.ptr, align 1
20 %tobool = icmp eq i8 %1, 0
21 br i1 %tobool, label %while.end, label %while.body
30 while.body.i.preheader:
31 %addr = getelementptr inbounds [10 x i8]* @global, i64 0, i64 9
32 br label %while.body.i
38 %c.addr.02.i = phi i8* [ %incdec.ptr.i, %while.body.i ], [ %addr, %while.body.i.preheader ]
39 %incdec.ptr.i = getelementptr inbounds i8* %c.addr.02.i, i64 -1
40 ; CHECK: sub i64 10, %0
41 ; CHECK-NEXT: icmp ult i64 10, %0
42 ; CHECK-NEXT: icmp ult i64 {{.*}}, 1
44 ; CHECK-NEXT: br {{.*}}, label %trap
45 store i8 100, i8* %c.addr.02.i, align 1
46 %0 = load i8* %incdec.ptr.i, align 1
47 %tobool.i = icmp eq i8 %0, 0
48 br i1 %tobool.i, label %fn.exit, label %while.body.i