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- ; 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
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