xref: /llvm-project/llvm/test/Bitcode/flags.ll (revision 9efb07f261b2cd673c0a5abf2ed2546ad288ab48)
1; RUN: llvm-as < %s | llvm-dis > %t0
2; RUN: opt -S < %s > %t1
3; RUN: diff %t0 %t1
4; RUN: verify-uselistorder < %s
5; PR6140
6
7; Make sure the flags are serialized/deserialized properly for both
8; forward and backward references.
9
10define void @foo() nounwind {
11entry:
12  br label %first
13
14second:                                           ; 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  %hh = zext nneg i32 %a to i64
20  %ll = zext i32 %s to i64
21  %ff = uitofp nneg i32 %a to float
22  %bb = uitofp i32 %s to float
23  %jj = or disjoint i32 %a, 0
24  %oo = or i32 %a, 0
25  %tu = trunc nuw i32 %a to i16
26  %ts = trunc nsw i32 %a to i16
27  %tus = trunc nuw nsw i32 %a to i16
28  %t = trunc i32 %a to i16
29  %tuv = trunc nuw <2 x i32> %aa to <2 x i16>
30  %tsv = trunc nsw <2 x i32> %aa to <2 x i16>
31  %tusv = trunc nuw nsw <2 x i32> %aa to <2 x i16>
32  %tv = trunc <2 x i32> %aa to <2 x i16>
33  %ii = icmp samesign ult i32 %a, %z
34  %iv = icmp samesign ult <2 x i32> %aa, %aa
35  unreachable
36
37first:                                                    ; preds = %entry
38  %aa = bitcast <2 x i32> <i32 0, i32 0> to <2 x i32>
39  %a = bitcast i32 0 to i32                               ; <i32> [#uses=8]
40  %uu = add nuw i32 %a, 0                                 ; <i32> [#uses=0]
41  %ss = add nsw i32 %a, 0                                 ; <i32> [#uses=0]
42  %uuss = add nuw nsw i32 %a, 0                           ; <i32> [#uses=0]
43  %zz = add i32 %a, 0                                     ; <i32> [#uses=0]
44  %kk = zext nneg i32 %a to i64
45  %rr = zext i32 %ss to i64
46  %ww = uitofp nneg i32 %a to float
47  %xx = uitofp i32 %ss to float
48  %mm = or disjoint i32 %a, 0
49  %nn = or i32 %a, 0
50  %tuu = trunc nuw i32 %a to i16
51  %tss = trunc nsw i32 %a to i16
52  %tuss = trunc nuw nsw i32 %a to i16
53  %tt = trunc i32 %a to i16
54  %ttuv = trunc nuw <2 x i32> %aa to <2 x i16>
55  %ttsv = trunc nsw <2 x i32> %aa to <2 x i16>
56  %ttusv = trunc nuw nsw <2 x i32> %aa to <2 x i16>
57  %ttv = trunc <2 x i32> %aa to <2 x i16>
58  %icm = icmp samesign ult i32 %a, %zz
59  %icv = icmp samesign ult <2 x i32> %aa, %aa
60  br label %second
61}
62