blob: ecd5086f73089d302e4e933980ce8ec0673bb05d [file] [log] [blame]
Dan Gohman18800922009-09-11 18:01:28 +00001; RUN: opt < %s -indvars -S | grep indvar
Chris Lattnercfa3eee2003-09-12 16:42:16 +00002
Tanya Lattner5640bd12008-03-01 09:15:35 +00003define i32 @test() {
4; <label>:0
5 br i1 true, label %LoopHead, label %LoopHead
Chris Lattnercfa3eee2003-09-12 16:42:16 +00006
Tanya Lattner5640bd12008-03-01 09:15:35 +00007LoopHead: ; preds = %LoopHead, %0, %0
8 %A = phi i32 [ 7, %0 ], [ 7, %0 ], [ %B, %LoopHead ] ; <i32> [#uses=1]
9 %B = add i32 %A, 1 ; <i32> [#uses=2]
Dan Gohmana9c205c2010-02-25 06:57:05 +000010 br i1 true, label %LoopHead, label %Out
Tanya Lattner5640bd12008-03-01 09:15:35 +000011
12Out: ; preds = %LoopHead
13 ret i32 %B
Chris Lattnercfa3eee2003-09-12 16:42:16 +000014}
Tanya Lattner5640bd12008-03-01 09:15:35 +000015