| Dan Gohman | 26793ed | 2010-01-25 21:55:39 +0000 | [diff] [blame] | 1 | ; RUN: llvm-as < %s | llvm-dis > %t0 |
| 2 | ; RUN: opt -S < %s > %t1 |
| 3 | ; RUN: diff %t0 %t1 |
| Duncan P. N. Exon Smith | 13f5c58 | 2014-08-19 21:08:27 +0000 | [diff] [blame] | 4 | ; RUN: verify-uselistorder < %s |
| Dan Gohman | 26793ed | 2010-01-25 21:55:39 +0000 | [diff] [blame] | 5 | ; PR6140 |
| 6 | |
| 7 | ; Make sure the flags are serialized/deserialized properly for both |
| 8 | ; forward and backward references. |
| 9 | |
| 10 | define void @foo() nounwind { |
| 11 | entry: |
| 12 | br label %first |
| 13 | |
| 14 | second: ; preds = %first |
| 15 | %u = add nuw i32 %a, 0 ; <i32> [#uses=0] |
| 16 | %s = add nsw i32 %a, 0 ; <i32> [#uses=0] |
| 17 | %us = add nuw nsw i32 %a, 0 ; <i32> [#uses=0] |
| 18 | %z = add i32 %a, 0 ; <i32> [#uses=0] |
| 19 | unreachable |
| 20 | |
| 21 | first: ; preds = %entry |
| 22 | %a = bitcast i32 0 to i32 ; <i32> [#uses=8] |
| 23 | %uu = add nuw i32 %a, 0 ; <i32> [#uses=0] |
| 24 | %ss = add nsw i32 %a, 0 ; <i32> [#uses=0] |
| 25 | %uuss = add nuw nsw i32 %a, 0 ; <i32> [#uses=0] |
| 26 | %zz = add i32 %a, 0 ; <i32> [#uses=0] |
| 27 | br label %second |
| 28 | } |