xref: /llvm-project/llvm/test/CodeGen/ARM/machine-outliner-thunk.ll (revision 03141aa04acb2481652125c974bf3cfd125f4ce9)
1; RUN: llc -enable-machine-outliner -verify-machineinstrs -mtriple=armv7-- \
2; RUN: -stop-after=machine-outliner < %s | FileCheck %s --check-prefix=ARM
3; RUN: llc -enable-machine-outliner -verify-machineinstrs -mtriple=thumbv7-- \
4; RUN: -stop-after=machine-outliner < %s | FileCheck %s --check-prefix=THUMB
5; RUN: llc -enable-machine-outliner -verify-machineinstrs \
6; RUN: -mtriple=thumbv7-apple-darwin -stop-after=machine-outliner < %s \
7; RUN: | FileCheck %s --check-prefix=MACHO
8; RUN: llc -enable-machine-outliner -verify-machineinstrs -mtriple=thumbv5-- \
9; RUN: --stop-after=machine-outliner < %s | FileCheck %s --check-prefix=THUMB1
10; RUN: llc -verify-machineinstrs -mtriple=thumbv8m.main \
11; RUN: --stop-after=machine-outliner < %s | FileCheck %s --check-prefix=THUMB
12
13declare i32 @thunk_called_fn(i32, i32, i32, i32)
14
15define i32 @a() #0 {
16; ARM-LABEL: name:             a
17; ARM:       bb.0.entry:
18; ARM-NEXT:    liveins: $r11, $lr
19; ARM:         $sp = frame-setup STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r11, killed $lr
20; ARM-NEXT:    frame-setup CFI_INSTRUCTION def_cfa_offset 8
21; ARM-NEXT:    frame-setup CFI_INSTRUCTION offset $lr, -4
22; ARM-NEXT:    frame-setup CFI_INSTRUCTION offset $r11, -8
23; ARM-NEXT:    BL @OUTLINED_FUNCTION_0{{.*}}
24; ARM-NEXT:    renamable $r0 = ADDri killed renamable $r0, 8, 14 /* CC::al */, $noreg, $noreg
25; ARM-NEXT:    $sp = frame-destroy LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r11, def $pc, implicit killed $r0
26
27; THUMB-LABEL: name:             a
28; THUMB:       bb.0.entry:
29; THUMB-NEXT:    liveins: $r7, $lr
30; THUMB:         frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr
31; THUMB-NEXT:    frame-setup CFI_INSTRUCTION def_cfa_offset 8
32; THUMB-NEXT:    frame-setup CFI_INSTRUCTION offset $lr, -4
33; THUMB-NEXT:    frame-setup CFI_INSTRUCTION offset $r7, -8
34; THUMB-NEXT:    tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_0{{.*}}
35; THUMB-NEXT:    renamable $r0, dead $cpsr = tADDi8 killed renamable $r0, 8, 14 /* CC::al */, $noreg
36; THUMB-NEXT:    tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
37
38; MACHO-LABEL: name:             a
39; MACHO:       bb.0.entry:
40; MACHO-NEXT:    liveins: $lr
41; MACHO:         early-clobber $sp = frame-setup t2STR_PRE killed $lr, $sp, -4, 14 /* CC::al */, $noreg
42; MACHO-NEXT:    frame-setup CFI_INSTRUCTION def_cfa_offset 4
43; MACHO-NEXT:    frame-setup CFI_INSTRUCTION offset $lr, -4
44; MACHO-NEXT:    tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_0{{.*}}
45; MACHO-NEXT:    renamable $r0, dead $cpsr = tADDi8 killed renamable $r0, 8, 14 /* CC::al */, $noreg
46; MACHO-NEXT:    $lr, $sp = frame-destroy t2LDR_POST $sp, 4, 14 /* CC::al */, $noreg
47; MACHO-NEXT:    tBX_RET 14 /* CC::al */, $noreg, implicit killed $r0
48
49; THUMB1-NOT: OUTLINED_FUNCTION_0
50
51entry:
52  %call = tail call i32 @thunk_called_fn(i32 1, i32 2, i32 3, i32 4)
53  %cx = add i32 %call, 8
54  ret i32 %cx
55}
56
57define i32 @b() #0 {
58; ARM-LABEL: name:             b
59; ARM:       bb.0.entry:
60; ARM-NEXT:    liveins: $r11, $lr
61; ARM:         $sp = frame-setup STMDB_UPD $sp, 14 /* CC::al */, $noreg, killed $r11, killed $lr
62; ARM-NEXT:    frame-setup CFI_INSTRUCTION def_cfa_offset 8
63; ARM-NEXT:    frame-setup CFI_INSTRUCTION offset $lr, -4
64; ARM-NEXT:    frame-setup CFI_INSTRUCTION offset $r11, -8
65; ARM-NEXT:    BL @OUTLINED_FUNCTION_0{{.*}}
66; ARM-NEXT:    renamable $r0 = ADDri killed renamable $r0, 88, 14 /* CC::al */, $noreg, $noreg
67; ARM-NEXT:    $sp = frame-destroy LDMIA_RET $sp, 14 /* CC::al */, $noreg, def $r11, def $pc, implicit killed $r0
68
69; THUMB-LABEL: name:             b
70; THUMB:       bb.0.entry:
71; THUMB-NEXT:    liveins: $r7, $lr
72; THUMB:         frame-setup tPUSH 14 /* CC::al */, $noreg, killed $r7, killed $lr
73; THUMB-NEXT:    frame-setup CFI_INSTRUCTION def_cfa_offset 8
74; THUMB-NEXT:    frame-setup CFI_INSTRUCTION offset $lr, -4
75; THUMB-NEXT:    frame-setup CFI_INSTRUCTION offset $r7, -8
76; THUMB-NEXT:    tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_0{{.*}}
77; THUMB-NEXT:    renamable $r0, dead $cpsr = tADDi8 killed renamable $r0, 88, 14 /* CC::al */, $noreg
78; THUMB-NEXT:    tPOP_RET 14 /* CC::al */, $noreg, def $r7, def $pc
79
80; MACHO-LABEL: name:             b
81; MACHO:       bb.0.entry:
82; MACHO-NEXT:    liveins: $lr
83; MACHO:         early-clobber $sp = frame-setup t2STR_PRE killed $lr, $sp, -4, 14 /* CC::al */, $noreg
84; MACHO-NEXT:    frame-setup CFI_INSTRUCTION def_cfa_offset 4
85; MACHO-NEXT:    frame-setup CFI_INSTRUCTION offset $lr, -4
86; MACHO-NEXT:    tBL 14 /* CC::al */, $noreg, @OUTLINED_FUNCTION_0{{.*}}
87; MACHO-NEXT:    renamable $r0, dead $cpsr = tADDi8 killed renamable $r0, 88, 14 /* CC::al */, $noreg
88; MACHO-NEXT:    $lr, $sp = frame-destroy t2LDR_POST $sp, 4, 14 /* CC::al */, $noreg
89; MACHO-NEXT:    tBX_RET 14 /* CC::al */, $noreg, implicit killed $r0
90entry:
91  %call = tail call i32 @thunk_called_fn(i32 1, i32 2, i32 3, i32 4)
92  %cx = add i32 %call, 88
93  ret i32 %cx
94}
95
96; ARM-LABEL: name:            OUTLINED_FUNCTION_0
97; ARM:        bb.0:
98; ARM-NEXT:   liveins: $r10, $r9, $r8, $r7, $r6, $r5, $r4, $d15, $d14, $d13, $d12, $d11, $d10, $d9, $d8
99; ARM:        $r0 = MOVi 1, 14 /* CC::al */, $noreg, $noreg
100; ARM-NEXT:   $r1 = MOVi 2, 14 /* CC::al */, $noreg, $noreg
101; ARM-NEXT:   $r2 = MOVi 3, 14 /* CC::al */, $noreg, $noreg
102; ARM-NEXT:   $r3 = MOVi 4, 14 /* CC::al */, $noreg, $noreg
103; ARM-NEXT:   TAILJMPd @thunk_called_fn, implicit $sp
104
105; THUMB-LABEL: name:            OUTLINED_FUNCTION_0
106; THUMB:        bb.0:
107; THUMB-NEXT:   liveins: $r11, $r10, $r9, $r8, $r6, $r5, $r4, $d15, $d14, $d13, $d12, $d11, $d10, $d9, $d8
108; THUMB:        $r0, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
109; THUMB-NEXT:   $r1, dead $cpsr = tMOVi8 2, 14 /* CC::al */, $noreg
110; THUMB-NEXT:   $r2, dead $cpsr = tMOVi8 3, 14 /* CC::al */, $noreg
111; THUMB-NEXT:   $r3, dead $cpsr = tMOVi8 4, 14 /* CC::al */, $noreg
112; THUMB-NEXT:   tTAILJMPdND @thunk_called_fn, 14 /* CC::al */, $noreg, implicit $sp
113
114; MACHO-LABEL: name:            OUTLINED_FUNCTION_0
115; MACHO:        bb.0:
116; MACHO-NEXT:   liveins: $r7, $r6, $r5, $r4, $r11, $r10, $r8, $d15, $d14, $d13, $d12, $d11, $d10, $d9, $d8
117; MACHO:        $r0, dead $cpsr = tMOVi8 1, 14 /* CC::al */, $noreg
118; MACHO-NEXT:   $r1, dead $cpsr = tMOVi8 2, 14 /* CC::al */, $noreg
119; MACHO-NEXT:   $r2, dead $cpsr = tMOVi8 3, 14 /* CC::al */, $noreg
120; MACHO-NEXT:   $r3, dead $cpsr = tMOVi8 4, 14 /* CC::al */, $noreg
121; MACHO-NEXT:   tTAILJMPd @thunk_called_fn, 14 /* CC::al */, $noreg, implicit $sp
122
123attributes #0 = { minsize optsize }
124