1 ; RUN: llvm-as < %s | llvm-dis > %t0 2 ; RUN: opt -S < %s > %t1 3 ; RUN: diff %t0 %t1 4 ; PR6140 5 6 ; Make sure the flags are serialized/deserialized properly for both 7 ; forward and backward references. 8 9 define void @foo() nounwind { 10 entry: 11 br label %first 12 13 second: ; preds = %first 14 %u = add nuw i32 %a, 0 ; <i32> [#uses=0] 15 %s = add nsw i32 %a, 0 ; <i32> [#uses=0] 16 %us = add nuw nsw i32 %a, 0 ; <i32> [#uses=0] 17 %z = add i32 %a, 0 ; <i32> [#uses=0] 18 unreachable 19 20 first: ; preds = %entry 21 %a = bitcast i32 0 to i32 ; <i32> [#uses=8] 22 %uu = add nuw i32 %a, 0 ; <i32> [#uses=0] 23 %ss = add nsw i32 %a, 0 ; <i32> [#uses=0] 24 %uuss = add nuw nsw i32 %a, 0 ; <i32> [#uses=0] 25 %zz = add i32 %a, 0 ; <i32> [#uses=0] 26 br label %second 27 } 28
