1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --include-generated-funcs
2; RUN: opt -S -verify -iroutliner -ir-outlining-no-cost < %s | FileCheck %s
3
4; A PHINode defines the global value number of a split phi node for
5; an exit paths based on the canonical number for the incoming values, and
6; the canonical number for the basic block.  This checks that we accurately
7; capture a different numbering for the same incoming value but with different
8; blocks.
9
10define void @func1(i32 %0, i32 %1) local_unnamed_addr #0 {
11bb1:
12  br label %bb5
13
14bb2:
15  %a = add i32 %0, %1
16  %b = add i32 %0, %1
17  %c = icmp eq i32 %b, 1
18  br i1 %c, label %bb5, label %bb3
19
20bb3:
21  %d = add i32 %0, %1
22  br label %bb5
23
24bb4:
25  %e = sub i32 %0, %1
26  br label %bb2
27
28bb5:
29  %f = phi i32 [ 0, %bb1 ], [ 1, %bb2 ], [ 1, %bb3 ]
30  ret void
31}
32
33define void @func2(i32 %0, i32 %1) local_unnamed_addr #0 {
34bb1:
35  br label %bb5
36
37bb2:
38  %a = sub i32 %0, %1
39  %b = add i32 %0, %1
40  %c = icmp eq i32 %b, 1
41  br i1 %c, label %bb5, label %bb3
42
43bb3:
44  %d = add i32 %0, %1
45  br label %bb5
46
47bb4:
48  %e = add i32 %0, %1
49  br label %bb2
50
51bb5:
52  %f = phi i32 [ 0, %bb1 ], [ 1, %bb3 ], [ 1, %bb2 ]
53  ret void
54}
55; CHECK-LABEL: @func1(
56; CHECK-NEXT:  bb1:
57; CHECK-NEXT:    [[F_CE_LOC:%.*]] = alloca i32, align 4
58; CHECK-NEXT:    br label [[BB5:%.*]]
59; CHECK:       bb2:
60; CHECK-NEXT:    [[A:%.*]] = add i32 [[TMP0:%.*]], [[TMP1:%.*]]
61; CHECK-NEXT:    [[LT_CAST:%.*]] = bitcast i32* [[F_CE_LOC]] to i8*
62; CHECK-NEXT:    call void @llvm.lifetime.start.p0i8(i64 -1, i8* [[LT_CAST]])
63; CHECK-NEXT:    call void @outlined_ir_func_0(i32 [[TMP0]], i32 [[TMP1]], i32* [[F_CE_LOC]], i32 0)
64; CHECK-NEXT:    [[F_CE_RELOAD:%.*]] = load i32, i32* [[F_CE_LOC]], align 4
65; CHECK-NEXT:    call void @llvm.lifetime.end.p0i8(i64 -1, i8* [[LT_CAST]])
66; CHECK-NEXT:    br label [[BB5]]
67; CHECK:       bb4:
68; CHECK-NEXT:    [[E:%.*]] = sub i32 [[TMP0]], [[TMP1]]
69; CHECK-NEXT:    br label [[BB2:%.*]]
70; CHECK:       bb5:
71; CHECK-NEXT:    [[F:%.*]] = phi i32 [ 0, [[BB1:%.*]] ], [ [[F_CE_RELOAD]], [[BB2]] ]
72; CHECK-NEXT:    ret void
73;
74;
75; CHECK-LABEL: @func2(
76; CHECK-NEXT:  bb1:
77; CHECK-NEXT:    [[F_CE_LOC:%.*]] = alloca i32, align 4
78; CHECK-NEXT:    br label [[BB5:%.*]]
79; CHECK:       bb2:
80; CHECK-NEXT:    [[A:%.*]] = sub i32 [[TMP0:%.*]], [[TMP1:%.*]]
81; CHECK-NEXT:    [[LT_CAST:%.*]] = bitcast i32* [[F_CE_LOC]] to i8*
82; CHECK-NEXT:    call void @llvm.lifetime.start.p0i8(i64 -1, i8* [[LT_CAST]])
83; CHECK-NEXT:    call void @outlined_ir_func_0(i32 [[TMP0]], i32 [[TMP1]], i32* [[F_CE_LOC]], i32 1)
84; CHECK-NEXT:    [[F_CE_RELOAD:%.*]] = load i32, i32* [[F_CE_LOC]], align 4
85; CHECK-NEXT:    call void @llvm.lifetime.end.p0i8(i64 -1, i8* [[LT_CAST]])
86; CHECK-NEXT:    br label [[BB5]]
87; CHECK:       bb4:
88; CHECK-NEXT:    [[E:%.*]] = add i32 [[TMP0]], [[TMP1]]
89; CHECK-NEXT:    br label [[BB2:%.*]]
90; CHECK:       bb5:
91; CHECK-NEXT:    [[F:%.*]] = phi i32 [ 0, [[BB1:%.*]] ], [ [[F_CE_RELOAD]], [[BB2]] ]
92; CHECK-NEXT:    ret void
93;
94;
95; CHECK-LABEL: define internal void @outlined_ir_func_0(
96; CHECK-NEXT:  newFuncRoot:
97; CHECK-NEXT:    br label [[BB2_TO_OUTLINE:%.*]]
98; CHECK:       bb2_to_outline:
99; CHECK-NEXT:    [[B:%.*]] = add i32 [[TMP0:%.*]], [[TMP1:%.*]]
100; CHECK-NEXT:    [[C:%.*]] = icmp eq i32 [[B]], 1
101; CHECK-NEXT:    br i1 [[C]], label [[BB5_SPLIT:%.*]], label [[BB3:%.*]]
102; CHECK:       bb3:
103; CHECK-NEXT:    [[D:%.*]] = add i32 [[TMP0]], [[TMP1]]
104; CHECK-NEXT:    br label [[BB5_SPLIT]]
105; CHECK:       bb5.split:
106; CHECK-NEXT:    [[TMP4:%.*]] = phi i32 [ 1, [[BB3]] ], [ 1, [[BB2_TO_OUTLINE]] ]
107; CHECK-NEXT:    [[F_CE:%.*]] = phi i32 [ 1, [[BB2_TO_OUTLINE]] ], [ 1, [[BB3]] ]
108; CHECK-NEXT:    br label [[BB5_EXITSTUB:%.*]]
109; CHECK:       bb5.exitStub:
110; CHECK-NEXT:    switch i32 [[TMP3:%.*]], label [[FINAL_BLOCK_0:%.*]] [
111; CHECK-NEXT:    i32 0, label [[OUTPUT_BLOCK_0_0:%.*]]
112; CHECK-NEXT:    i32 1, label [[OUTPUT_BLOCK_1_0:%.*]]
113; CHECK-NEXT:    ]
114; CHECK:       output_block_0_0:
115; CHECK-NEXT:    store i32 [[F_CE]], i32* [[TMP2:%.*]], align 4
116; CHECK-NEXT:    br label [[FINAL_BLOCK_0]]
117; CHECK:       output_block_1_0:
118; CHECK-NEXT:    store i32 [[TMP4]], i32* [[TMP2]], align 4
119; CHECK-NEXT:    br label [[FINAL_BLOCK_0]]
120; CHECK:       final_block_0:
121; CHECK-NEXT:    ret void
122;
123