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 { ptr, i32, i32, i32, [4 x i8] } 13 %struct..task = type { ptr, i32, i32, ptr, i32, ptr, i32, i32 } 14@v1 = external global i32 ; <ptr> [#uses=1] 15@v2 = external global i32 ; <ptr> [#uses=1] 16 17define ptr @handlerfn(ptr %pkt.2) { 18entry: 19 %tmp.1 = icmp ne ptr %pkt.2, null ; <i1> [#uses=1] 20 br i1 %tmp.1, label %cond_false, label %cond_continue 21 22cond_false: ; preds = %entry 23 br label %cond_continue 24 25cond_continue: ; preds = %cond_false, %entry 26 %mem_tmp.0 = phi ptr [ @v2, %cond_false ], [ @v1, %entry ] ; <ptr> [#uses=1] 27 call void @append( ptr %pkt.2, ptr %mem_tmp.0 ) 28 ret ptr null 29} 30 31declare void @append(ptr, ptr) 32 33