xref: /llvm-project/llvm/test/CodeGen/AArch64/implicit-def-subreg-to-reg-regression.ll (revision bdc0afc87181d4f7ab8aad2da6fa70a1204f0a84) 
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py UTC_ARGS: --version 3
2; RUN: llc -aarch64-min-jump-table-entries=4 -mtriple=arm64-apple-ios < %s | FileCheck %s
3
4; Check there's no assert in spilling from implicit-def operands on an
5; IMPLICIT_DEF.
6
7define void @widget(i32 %arg, i32 %arg1, ptr %arg2, ptr %arg3, ptr %arg4, i32 %arg5, i1 %arg6) {
8; CHECK-LABEL: widget:
9; CHECK:       ; %bb.0: ; %bb
10; CHECK-NEXT:    sub sp, sp, #144
11; CHECK-NEXT:    stp x28, x27, [sp, #48] ; 16-byte Folded Spill
12; CHECK-NEXT:    stp x26, x25, [sp, #64] ; 16-byte Folded Spill
13; CHECK-NEXT:    stp x24, x23, [sp, #80] ; 16-byte Folded Spill
14; CHECK-NEXT:    stp x22, x21, [sp, #96] ; 16-byte Folded Spill
15; CHECK-NEXT:    stp x20, x19, [sp, #112] ; 16-byte Folded Spill
16; CHECK-NEXT:    stp x29, x30, [sp, #128] ; 16-byte Folded Spill
17; CHECK-NEXT:    .cfi_def_cfa_offset 144
18; CHECK-NEXT:    .cfi_offset w30, -8
19; CHECK-NEXT:    .cfi_offset w29, -16
20; CHECK-NEXT:    .cfi_offset w19, -24
21; CHECK-NEXT:    .cfi_offset w20, -32
22; CHECK-NEXT:    .cfi_offset w21, -40
23; CHECK-NEXT:    .cfi_offset w22, -48
24; CHECK-NEXT:    .cfi_offset w23, -56
25; CHECK-NEXT:    .cfi_offset w24, -64
26; CHECK-NEXT:    .cfi_offset w25, -72
27; CHECK-NEXT:    .cfi_offset w26, -80
28; CHECK-NEXT:    .cfi_offset w27, -88
29; CHECK-NEXT:    .cfi_offset w28, -96
30; CHECK-NEXT:    mov w19, w6
31; CHECK-NEXT:    mov w20, w5
32; CHECK-NEXT:    mov x21, x4
33; CHECK-NEXT:    mov x22, x3
34; CHECK-NEXT:    mov x23, x2
35; CHECK-NEXT:    mov w24, w1
36; CHECK-NEXT:    mov w25, w0
37; CHECK-NEXT:    mov w26, w1
38; CHECK-NEXT:  Lloh0:
39; CHECK-NEXT:    adrp x27, LJTI0_0@PAGE
40; CHECK-NEXT:  Lloh1:
41; CHECK-NEXT:    add x27, x27, LJTI0_0@PAGEOFF
42; CHECK-NEXT:    mov w28, #1 ; =0x1
43; CHECK-NEXT:    ; implicit-def: $w8
44; CHECK-NEXT:    str x8, [sp, #40] ; 8-byte Folded Spill
45; CHECK-NEXT:    b LBB0_2
46; CHECK-NEXT:  LBB0_1: ; %bb10
47; CHECK-NEXT:    ; in Loop: Header=BB0_2 Depth=1
48; CHECK-NEXT:    mov w0, w20
49; CHECK-NEXT:    mov x1, x22
50; CHECK-NEXT:    str wzr, [x21]
51; CHECK-NEXT:    bl _putc
52; CHECK-NEXT:    mov w0, w25
53; CHECK-NEXT:    mov x1, xzr
54; CHECK-NEXT:    bl _putc
55; CHECK-NEXT:  LBB0_2: ; %bb8
56; CHECK-NEXT:    ; =>This Inner Loop Header: Depth=1
57; CHECK-NEXT:    cmp w24, #39
58; CHECK-NEXT:    b.hi LBB0_5
59; CHECK-NEXT:  ; %bb.3: ; %bb8
60; CHECK-NEXT:    ; in Loop: Header=BB0_2 Depth=1
61; CHECK-NEXT:    adr x8, LBB0_1
62; CHECK-NEXT:    ldrb w9, [x27, x26]
63; CHECK-NEXT:    add x8, x8, x9, lsl #2
64; CHECK-NEXT:    br x8
65; CHECK-NEXT:  LBB0_4: ; %bb9
66; CHECK-NEXT:    ; in Loop: Header=BB0_2 Depth=1
67; CHECK-NEXT:    str w28, [x23]
68; CHECK-NEXT:    b LBB0_2
69; CHECK-NEXT:  LBB0_5: ; %bb8
70; CHECK-NEXT:    ; in Loop: Header=BB0_2 Depth=1
71; CHECK-NEXT:    cmp w24, #64
72; CHECK-NEXT:    b.ne LBB0_2
73; CHECK-NEXT:    b LBB0_9
74; CHECK-NEXT:  LBB0_6: ; %bb13
75; CHECK-NEXT:    ; in Loop: Header=BB0_2 Depth=1
76; CHECK-NEXT:    mov w8, #1 ; =0x1
77; CHECK-NEXT:    str x8, [sp, #40] ; 8-byte Folded Spill
78; CHECK-NEXT:    tbz w19, #0, LBB0_2
79; CHECK-NEXT:  ; %bb.7: ; %bb14
80; CHECK-NEXT:    ; in Loop: Header=BB0_2 Depth=1
81; CHECK-NEXT:    mov x0, xzr
82; CHECK-NEXT:    mov x1, xzr
83; CHECK-NEXT:    mov w8, #1 ; =0x1
84; CHECK-NEXT:    stp xzr, xzr, [sp]
85; CHECK-NEXT:    stp x8, xzr, [sp, #16]
86; CHECK-NEXT:    bl _fprintf
87; CHECK-NEXT:    b LBB0_2
88; CHECK-NEXT:  LBB0_8: ; %bb12
89; CHECK-NEXT:    ; =>This Inner Loop Header: Depth=1
90; CHECK-NEXT:    b LBB0_8
91; CHECK-NEXT:  LBB0_9: ; %bb16
92; CHECK-NEXT:    ldr x8, [sp, #40] ; 8-byte Folded Reload
93; CHECK-NEXT:    mov x0, xzr
94; CHECK-NEXT:    mov x1, xzr
95; CHECK-NEXT:    ; kill: def $w8 killed $w8 killed $x8 def $x8
96; CHECK-NEXT:    str x8, [sp]
97; CHECK-NEXT:    bl _fprintf
98; CHECK-NEXT:    brk #0x1
99; CHECK-NEXT:    .loh AdrpAdd Lloh0, Lloh1
100; CHECK-NEXT:    .cfi_endproc
101; CHECK-NEXT:    .section __TEXT,__const
102; CHECK-NEXT:  LJTI0_0:
103; CHECK-NEXT:    .byte (LBB0_6-LBB0_1)>>2
104; CHECK-NEXT:    .byte (LBB0_8-LBB0_1)>>2
105; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
106; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
107; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
108; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
109; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
110; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
111; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
112; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
113; CHECK-NEXT:    .byte (LBB0_4-LBB0_1)>>2
114; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
115; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
116; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
117; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
118; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
119; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
120; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
121; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
122; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
123; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
124; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
125; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
126; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
127; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
128; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
129; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
130; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
131; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
132; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
133; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
134; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
135; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
136; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
137; CHECK-NEXT:    .byte (LBB0_1-LBB0_1)>>2
138; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
139; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
140; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
141; CHECK-NEXT:    .byte (LBB0_2-LBB0_1)>>2
142; CHECK-NEXT:    .byte (LBB0_1-LBB0_1)>>2
143bb:
144  br label %bb7
145
146bb7:                                              ; preds = %bb14, %bb13, %bb
147  %phi = phi i32 [ poison, %bb ], [ %mul, %bb14 ], [ %mul, %bb13 ]
148  br label %bb8
149
150bb8:                                              ; preds = %bb10, %bb9, %bb8, %bb7
151  switch i32 %arg1, label %bb8 [
152    i32 10, label %bb9
153    i32 64, label %bb16
154    i32 0, label %bb13
155    i32 39, label %bb10
156    i32 34, label %bb10
157    i32 1, label %bb12
158  ]
159
160bb9:                                              ; preds = %bb8
161  store i32 1, ptr %arg2, align 4
162  br label %bb8
163
164bb10:                                             ; preds = %bb8, %bb8
165  store i32 0, ptr %arg4, align 4
166  %call = tail call i32 @putc(i32 %arg5, ptr %arg3)
167  %call11 = tail call i32 @putc(i32 %arg, ptr null)
168  br label %bb8
169
170bb12:                                             ; preds = %bb12, %bb8
171  br label %bb12
172
173bb13:                                             ; preds = %bb8
174  %mul = mul i32 1, 1
175  br i1 %arg6, label %bb14, label %bb7
176
177bb14:                                             ; preds = %bb13
178  %call15 = tail call i32 (ptr, ptr, ...) @fprintf(ptr null, ptr null, ptr null, i32 0, i32 %mul, ptr null)
179  br label %bb7
180
181bb16:                                             ; preds = %bb8
182  %call17 = tail call i32 (ptr, ptr, ...) @fprintf(ptr null, ptr null, i32 %phi)
183  unreachable
184}
185
186declare i32 @fprintf(ptr, ptr, ...)
187declare i32 @putc(i32, ptr)
188