1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
| ; PR4738 - Test that the library call simplifier doesn't assume anything about
; weak symbols.
;
; RUN: opt < %s -instcombine -S | FileCheck %s
@real_init = weak_odr constant [2 x i8] c"y\00"
@fake_init = weak constant [2 x i8] c"y\00"
@.str = private constant [2 x i8] c"y\00"
define i32 @foo() nounwind {
; CHECK-LABEL: define i32 @foo(
; CHECK: call i32 @strcmp
; CHECK: ret i32 %temp1
entry:
%str1 = getelementptr inbounds [2 x i8], [2 x i8]* @fake_init, i64 0, i64 0
%str2 = getelementptr inbounds [2 x i8], [2 x i8]* @.str, i64 0, i64 0
%temp1 = call i32 @strcmp(i8* %str1, i8* %str2) nounwind readonly
ret i32 %temp1
}
define i32 @bar() nounwind {
; CHECK-LABEL: define i32 @bar(
; CHECK: ret i32 0
entry:
%str1 = getelementptr inbounds [2 x i8], [2 x i8]* @real_init, i64 0, i64 0
%str2 = getelementptr inbounds [2 x i8], [2 x i8]* @.str, i64 0, i64 0
%temp1 = call i32 @strcmp(i8* %str1, i8* %str2) nounwind readonly
ret i32 %temp1
}
declare i32 @strcmp(i8*, i8*) nounwind readonly
|