blob: 9ca1eb40bce96cc66b631801f609a563ced72847 [file] [log] [blame]
Tanya Lattner003eae52008-03-10 07:21:50 +00001; RUN: llvm-as < %s -f -o %t.bc
Dan Gohmanf17a25c2007-07-18 16:29:46 +00002; RUN: lli %t.bc > /dev/null
3
4; test phi node
Tanya Lattner003eae52008-03-10 07:21:50 +00005@Y = global i32 6 ; <i32*> [#uses=1]
Dan Gohmanf17a25c2007-07-18 16:29:46 +00006
Tanya Lattner003eae52008-03-10 07:21:50 +00007define void @blah(i32* %X) {
8; <label>:0
Dan Gohmanf17a25c2007-07-18 16:29:46 +00009 br label %T
Tanya Lattner003eae52008-03-10 07:21:50 +000010T: ; preds = %Dead, %0
11 phi i32* [ %X, %0 ], [ @Y, %Dead ] ; <i32*>:1 [#uses=0]
Dan Gohmanf17a25c2007-07-18 16:29:46 +000012 ret void
Tanya Lattner003eae52008-03-10 07:21:50 +000013Dead: ; No predecessors!
Dan Gohmanf17a25c2007-07-18 16:29:46 +000014 br label %T
15}
16
Tanya Lattner003eae52008-03-10 07:21:50 +000017define i32 @test(i1 %C) {
18; <label>:0
19 br i1 %C, label %T, label %T
20T: ; preds = %0, %0
21 %X = phi i32 [ 123, %0 ], [ 123, %0 ] ; <i32> [#uses=1]
22 ret i32 %X
Dan Gohmanf17a25c2007-07-18 16:29:46 +000023}
24
Tanya Lattner003eae52008-03-10 07:21:50 +000025define i32 @main() {
26; <label>:0
Dan Gohmanf17a25c2007-07-18 16:29:46 +000027 br label %Test
Tanya Lattner003eae52008-03-10 07:21:50 +000028Test: ; preds = %Dead, %0
29 %X = phi i32 [ 0, %0 ], [ %Y, %Dead ] ; <i32> [#uses=1]
30 ret i32 %X
31Dead: ; No predecessors!
32 %Y = ashr i32 12, 4 ; <i32> [#uses=1]
Dan Gohmanf17a25c2007-07-18 16:29:46 +000033 br label %Test
34}
Tanya Lattner003eae52008-03-10 07:21:50 +000035