1 ; RUN: opt < %s -instcombine -S | grep "store i8" | count 2 2 3 define i32 @a(i8* %s) nounwind { 4 entry: 5 store i8 0, i8* %s, align 1 ; This store cannot be eliminated! 6 %tmp3 = call i32 @strlen( i8* %s ) nounwind readonly 7 %tmp5 = icmp ne i32 %tmp3, 0 8 br i1 %tmp5, label %bb, label %bb8 9 10 bb: ; preds = %entry 11 store i8 0, i8* %s, align 1 12 br label %bb8 13 14 bb8: 15 ret i32 %tmp3 16 } 17 18 declare i32 @strlen(i8*) nounwind readonly 19 20
