xref: /llvm-project/llvm/test/Transforms/IROutliner/illegal-phi-nodes.ll (revision f4b925ee7078f058602fd323e25f45f1ae91ca34)
1cea80760SAndrew Litteken; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
29dd9575cSRoman Lebedev; RUN: opt -S -passes=verify,iroutliner -ir-outlining-no-cost < %s | FileCheck %s
3cea80760SAndrew Litteken
4cea80760SAndrew Litteken; Show that we do not extract phi nodes as it would require extra label and
5cea80760SAndrew Litteken; control flow checking.
6cea80760SAndrew Litteken
7*f4b925eeSMatt Arsenaultdefine void @function1(ptr %a, ptr %b) {
8cea80760SAndrew Litteken; CHECK-LABEL: @function1(
9cea80760SAndrew Litteken; CHECK-NEXT:  entry:
10cea80760SAndrew Litteken; CHECK-NEXT:    br label [[FIRST:%.*]]
11cea80760SAndrew Litteken; CHECK:       first:
12cea80760SAndrew Litteken; CHECK-NEXT:    [[TMP0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ 3, [[NEXT:%.*]] ]
13*f4b925eeSMatt Arsenault; CHECK-NEXT:    call void @outlined_ir_func_0(ptr [[A:%.*]], ptr [[B:%.*]])
14cea80760SAndrew Litteken; CHECK-NEXT:    ret void
15cea80760SAndrew Litteken; CHECK:       next:
16cea80760SAndrew Litteken; CHECK-NEXT:    br label [[FIRST]]
17cea80760SAndrew Litteken;
18cea80760SAndrew Littekenentry:
19cea80760SAndrew Litteken  br label %first
20cea80760SAndrew Littekenfirst:
21cea80760SAndrew Litteken  %0 = phi i32 [ 0, %entry ], [ 3, %next ]
22*f4b925eeSMatt Arsenault  store i32 2, ptr %a, align 4
23*f4b925eeSMatt Arsenault  store i32 3, ptr %b, align 4
24cea80760SAndrew Litteken  ret void
25cea80760SAndrew Littekennext:
26cea80760SAndrew Litteken  br label %first
27cea80760SAndrew Litteken}
28cea80760SAndrew Litteken
29*f4b925eeSMatt Arsenaultdefine void @function2(ptr %a, ptr %b) {
30cea80760SAndrew Litteken; CHECK-LABEL: @function2(
31cea80760SAndrew Litteken; CHECK-NEXT:  entry:
32cea80760SAndrew Litteken; CHECK-NEXT:    br label [[FIRST:%.*]]
33cea80760SAndrew Litteken; CHECK:       first:
34cea80760SAndrew Litteken; CHECK-NEXT:    [[TMP0:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ 3, [[NEXT:%.*]] ]
35*f4b925eeSMatt Arsenault; CHECK-NEXT:    call void @outlined_ir_func_0(ptr [[A:%.*]], ptr [[B:%.*]])
36cea80760SAndrew Litteken; CHECK-NEXT:    ret void
37cea80760SAndrew Litteken; CHECK:       next:
38cea80760SAndrew Litteken; CHECK-NEXT:    br label [[FIRST]]
39cea80760SAndrew Litteken;
40cea80760SAndrew Littekenentry:
41cea80760SAndrew Litteken  br label %first
42cea80760SAndrew Littekenfirst:
43cea80760SAndrew Litteken  %0 = phi i32 [ 0, %entry ], [ 3, %next ]
44*f4b925eeSMatt Arsenault  store i32 2, ptr %a, align 4
45*f4b925eeSMatt Arsenault  store i32 3, ptr %b, align 4
46cea80760SAndrew Litteken  ret void
47cea80760SAndrew Littekennext:
48cea80760SAndrew Litteken  br label %first
49cea80760SAndrew Litteken}
50