1 ; RUN: opt < %s -bounds-checking -S | FileCheck %s
2 ; RUN: opt < %s -passes=bounds-checking -S | FileCheck %s
3 target datalayout = "e-p:64:64:64-p1:16:16:16-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"
5 @.str = private constant [8 x i8] c"abcdefg\00" ; <[8 x i8]*>
7 @.str_as1 = private addrspace(1) constant [8 x i8] c"abcdefg\00" ; <[8 x i8] addrspace(1)*>
10 declare noalias i8* @malloc(i64) nounwind
11 declare noalias i8* @calloc(i64, i64) nounwind
12 declare noalias i8* @realloc(i8* nocapture, i64) nounwind
15 define void @f1() nounwind {
16 %1 = tail call i8* @malloc(i64 32)
17 %2 = bitcast i8* %1 to i32*
18 %idx = getelementptr inbounds i32, i32* %2, i64 2
20 store i32 3, i32* %idx, align 4
25 define void @f2() nounwind {
26 %1 = tail call i8* @malloc(i64 32)
27 %2 = bitcast i8* %1 to i32*
28 %idx = getelementptr inbounds i32, i32* %2, i64 8
30 store i32 3, i32* %idx, align 4
35 define void @f3(i64 %x) nounwind {
36 %1 = tail call i8* @calloc(i64 4, i64 %x)
37 %2 = bitcast i8* %1 to i32*
38 %idx = getelementptr inbounds i32, i32* %2, i64 8
40 ; CHECK: sub i64 {{.*}}, 32
41 ; CHECK-NEXT: icmp ult i64 {{.*}}, 32
42 ; CHECK-NEXT: icmp ult i64 {{.*}}, 4
45 store i32 3, i32* %idx, align 4
50 define void @f4(i64 %x) nounwind {
51 %1 = tail call i8* @realloc(i8* null, i64 %x) nounwind
52 %2 = bitcast i8* %1 to i32*
53 %idx = getelementptr inbounds i32, i32* %2, i64 8
55 %3 = load i32, i32* %idx, align 4
60 define void @f5(i64 %x) nounwind {
61 %idx = getelementptr inbounds [8 x i8], [8 x i8]* @.str, i64 0, i64 %x
63 %1 = load i8, i8* %idx, align 4
67 define void @f5_as1(i64 %x) nounwind {
69 %idx = getelementptr inbounds [8 x i8], [8 x i8] addrspace(1)* @.str_as1, i64 0, i64 %x
73 %1 = load i8, i8 addrspace(1)* %idx, align 4
78 define void @f6(i64 %x) nounwind {
81 %2 = load i128, i128* %1, align 4
86 define void @f7(i64 %x) nounwind {
87 %1 = alloca i128, i64 %x
90 %2 = load i128, i128* %1, align 4
95 define void @f8() nounwind {
98 %3 = select i1 undef, i128* %1, i128* %2
100 %4 = load i128, i128* %3, align 4
105 define void @f9(i128* %arg) nounwind {
107 %2 = select i1 undef, i128* %arg, i128* %1
109 %3 = load i128, i128* %2, align 4
114 define void @f10(i64 %x, i64 %y) nounwind {
115 %1 = alloca i128, i64 %x
116 %2 = alloca i128, i64 %y
117 %3 = select i1 undef, i128* %1, i128* %2
121 %4 = load i128, i128* %3, align 4
126 define void @f11(i128* byval %x) nounwind {
127 %1 = bitcast i128* %x to i8*
128 %2 = getelementptr inbounds i8, i8* %1, i64 16
130 %3 = load i8, i8* %2, align 4
135 define void @f11_as1(i128 addrspace(1)* byval %x) nounwind {
136 %1 = bitcast i128 addrspace(1)* %x to i8 addrspace(1)*
137 %2 = getelementptr inbounds i8, i8 addrspace(1)* %1, i16 16
139 %3 = load i8, i8 addrspace(1)* %2, align 4
144 define i64 @f12(i64 %x, i64 %y) nounwind {
145 %1 = tail call i8* @calloc(i64 1, i64 %x)
146 ; CHECK: mul i64 %y, 8
147 %2 = bitcast i8* %1 to i64*
148 %3 = getelementptr inbounds i64, i64* %2, i64 %y
149 %4 = load i64, i64* %3, align 8
155 define void @f13() nounwind {
160 ; Self-refential GEPs can occur in dead code.
161 %incdec.ptr = getelementptr inbounds i32, i32* %incdec.ptr, i64 1
162 ; CHECK: %incdec.ptr = getelementptr inbounds i32, i32* %incdec.ptr
163 %l = load i32, i32* %incdec.ptr