blob: 9b32b00e299a1212fe7d968c651b010b47fbe382 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
|
; RUN: opt %s -instcombine -S | grep {store i8} | count 2
define i32 @a(i8* %s) nounwind {
entry:
store i8 0, i8* %s, align 1 ; This store cannot be eliminated!
%tmp3 = call i32 @strlen( i8* %s ) nounwind readonly
%tmp5 = icmp ne i32 %tmp3, 0
br i1 %tmp5, label %bb, label %bb8
bb: ; preds = %entry
store i8 0, i8* %s, align 1
br label %bb8
bb8:
ret i32 %tmp3
}
declare i32 @strlen(i8*) nounwind readonly
|
