forked from OSchip/llvm-project
20 lines
422 B
LLVM
20 lines
422 B
LLVM
; 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
|
|
|