xref: /llvm-project/llvm/test/Transforms/InstSimplify/load-relative.ll (revision 04b944e23050e4e0c6ee983cc9bc17740315ea4f) 
1; RUN: opt < %s -passes=instsimplify -S | FileCheck %s
2
3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4target triple = "x86_64-unknown-linux-gnu"
5
6@a = external global i8
7@b = external global i8
8
9@c1 = constant i32 trunc (i64 sub (i64 ptrtoint (ptr @a to i64), i64 ptrtoint (ptr @c1 to i64)) to i32)
10@c2 = constant [7 x i32] [i32 0, i32 0,
11i32 trunc (i64 sub (i64 ptrtoint (ptr @a to i64), i64 ptrtoint (ptr getelementptr ([7 x i32], ptr @c2, i32 0, i32 2) to i64)) to i32),
12i32 trunc (i64 sub (i64 ptrtoint (ptr @b to i64), i64 ptrtoint (ptr getelementptr ([7 x i32], ptr @c2, i32 0, i32 2) to i64)) to i32),
13i32 trunc (i64 add (i64 ptrtoint (ptr @b to i64), i64 ptrtoint (ptr getelementptr ([7 x i32], ptr @c2, i32 0, i32 2) to i64)) to i32),
14i32 trunc (i64 sub (i64 ptrtoint (ptr @b to i64), i64 1) to i32),
15i32 trunc (i64 sub (i64 0, i64 ptrtoint (ptr getelementptr ([7 x i32], ptr @c2, i32 0, i32 2) to i64)) to i32)
16]
17
18; CHECK: @f1
19define ptr @f1() {
20  ; CHECK: ret ptr @a
21  %l = call ptr @llvm.load.relative.i32(ptr @c1, i32 0)
22  ret ptr %l
23}
24
25; CHECK: @f2
26define ptr @f2() {
27  ; CHECK: ret ptr @a
28  %l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 0)
29  ret ptr %l
30}
31
32; CHECK: @f3
33define ptr @f3() {
34  ; CHECK: ret ptr @b
35  %l = call ptr @llvm.load.relative.i64(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i64 4)
36  ret ptr %l
37}
38
39; CHECK: @f4
40define ptr @f4() {
41  ; CHECK: ret ptr %
42  %l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 1)
43  ret ptr %l
44}
45
46; CHECK: @f5
47define ptr @f5() {
48  ; CHECK: ret ptr %
49  %l = call ptr @llvm.load.relative.i32(ptr zeroinitializer, i32 0)
50  ret ptr %l
51}
52
53; CHECK: @f6
54define ptr @f6() {
55  ; CHECK: ret ptr %
56  %l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 8)
57  ret ptr %l
58}
59
60; CHECK: @f7
61define ptr @f7() {
62  ; CHECK: ret ptr %
63  %l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 12)
64  ret ptr %l
65}
66
67; CHECK: @f8
68define ptr @f8() {
69  ; CHECK: ret ptr %
70  %l = call ptr @llvm.load.relative.i32(ptr getelementptr ([7 x i32], ptr @c2, i64 0, i64 2), i32 16)
71  ret ptr %l
72}
73
74declare ptr @llvm.load.relative.i32(ptr, i32)
75declare ptr @llvm.load.relative.i64(ptr, i64)
76