source: icGREP/icgrep-devel/llvm-3.8.0.src/test/CodeGen/Generic/2003-05-30-BadPreselectPhi.ll @ 5027

Last change on this file since 5027 was 5027, checked in by cameron, 3 years ago

Upgrade to llvm 3.8

File size: 1.4 KB
Line 
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
17define %struct..task* @handlerfn(%struct..packet* %pkt.2) {
18entry:
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
22cond_false:             ; preds = %entry
23        br label %cond_continue
24
25cond_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
32declare void @append(%struct..packet*, %struct..packet*)
33
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