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