1 ; RUN: llc < %s 2 3 ;; Date: May 28, 2003. 4 ;; From: test/Programs/SingleSource/richards_benchmark.c 5 ;; Function: struct task *handlerfn(struct packet *pkt) 6 ;; 7 ;; Error: PreSelection puts the arguments of the Phi just before 8 ;; the Phi instead of in predecessor blocks. This later 9 ;; causes llc to produces an invalid register <NULL VALUE> 10 ;; for the phi arguments. 11 12 %struct..packet = type { %struct..packet*, i32, i32, i32, [4 x i8] } 13 %struct..task = type { %struct..task*, i32, i32, %struct..packet*, i32, %struct..task* (%struct..packet*)*, i32, i32 } 14 @v1 = external global i32 ; <i32*> [#uses=1] 15 @v2 = external global i32 ; <i32*> [#uses=1] 16 17 define %struct..task* @handlerfn(%struct..packet* %pkt.2) { 18 entry: 19 %tmp.1 = icmp ne %struct..packet* %pkt.2, null ; <i1> [#uses=1] 20 br i1 %tmp.1, label %cond_false, label %cond_continue 21 22 cond_false: ; preds = %entry 23 br label %cond_continue 24 25 cond_continue: ; preds = %cond_false, %entry 26 %mem_tmp.0 = phi i32* [ @v2, %cond_false ], [ @v1, %entry ] ; <i32*> [#uses=1] 27 %tmp.12 = bitcast i32* %mem_tmp.0 to %struct..packet* ; <%struct..packet*> [#uses=1] 28 call void @append( %struct..packet* %pkt.2, %struct..packet* %tmp.12 ) 29 ret %struct..task* null 30 } 31 32 declare void @append(%struct..packet*, %struct..packet*) 33 34
