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1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -verify-machineinstrs -mtriple=aarch64-unknown-linux < %s | FileCheck %s
3; RUN: llc -verify-machineinstrs -mtriple=arm64-apple-ios < %s | FileCheck %s --check-prefix=CHECK-APPLE
4
5; Check CSR split can work properly for tests below.
6
7@a = common dso_local local_unnamed_addr global i32 0, align 4
8
9define dso_local signext i32 @test1(i32* %b) local_unnamed_addr  {
10; CHECK-LABEL: test1:
11; CHECK:       // %bb.0: // %entry
12; CHECK-NEXT:    stp x30, x19, [sp, #-16]! // 16-byte Folded Spill
13; CHECK-NEXT:    .cfi_def_cfa_offset 16
14; CHECK-NEXT:    .cfi_offset w19, -8
15; CHECK-NEXT:    .cfi_offset w30, -16
16; CHECK-NEXT:    adrp x8, a
17; CHECK-NEXT:    ldrsw x8, [x8, :lo12:a]
18; CHECK-NEXT:    cmp x8, x0
19; CHECK-NEXT:    b.eq .LBB0_2
20; CHECK-NEXT:  // %bb.1: // %if.end
21; CHECK-NEXT:    ldp x30, x19, [sp], #16 // 16-byte Folded Reload
22; CHECK-NEXT:    ret
23; CHECK-NEXT:  .LBB0_2: // %if.then
24; CHECK-NEXT:    mov x19, x0
25; CHECK-NEXT:    bl callVoid
26; CHECK-NEXT:    mov x0, x19
27; CHECK-NEXT:    ldp x30, x19, [sp], #16 // 16-byte Folded Reload
28; CHECK-NEXT:    b callNonVoid
29;
30; CHECK-APPLE-LABEL: test1:
31; CHECK-APPLE:       ; %bb.0: ; %entry
32; CHECK-APPLE-NEXT:    stp x20, x19, [sp, #-32]! ; 16-byte Folded Spill
33; CHECK-APPLE-NEXT:    stp x29, x30, [sp, #16] ; 16-byte Folded Spill
34; CHECK-APPLE-NEXT:    .cfi_def_cfa_offset 32
35; CHECK-APPLE-NEXT:    .cfi_offset w30, -8
36; CHECK-APPLE-NEXT:    .cfi_offset w29, -16
37; CHECK-APPLE-NEXT:    .cfi_offset w19, -24
38; CHECK-APPLE-NEXT:    .cfi_offset w20, -32
39; CHECK-APPLE-NEXT:  Lloh0:
40; CHECK-APPLE-NEXT:    adrp x8, _a@PAGE
41; CHECK-APPLE-NEXT:  Lloh1:
42; CHECK-APPLE-NEXT:    ldrsw x8, [x8, _a@PAGEOFF]
43; CHECK-APPLE-NEXT:    cmp x8, x0
44; CHECK-APPLE-NEXT:    b.eq LBB0_2
45; CHECK-APPLE-NEXT:  ; %bb.1: ; %if.end
46; CHECK-APPLE-NEXT:    ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
47; CHECK-APPLE-NEXT:    ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
48; CHECK-APPLE-NEXT:    ret
49; CHECK-APPLE-NEXT:  LBB0_2: ; %if.then
50; CHECK-APPLE-NEXT:    mov x19, x0
51; CHECK-APPLE-NEXT:    bl _callVoid
52; CHECK-APPLE-NEXT:    ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
53; CHECK-APPLE-NEXT:    mov x0, x19
54; CHECK-APPLE-NEXT:    ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
55; CHECK-APPLE-NEXT:    b _callNonVoid
56; CHECK-APPLE-NEXT:    .loh AdrpLdr Lloh0, Lloh1
57entry:
58  %0 = load i32, i32* @a, align 4, !tbaa !2
59  %conv = sext i32 %0 to i64
60  %1 = inttoptr i64 %conv to i32*
61  %cmp = icmp eq i32* %1, %b
62  br i1 %cmp, label %if.then, label %if.end
63
64if.then:                                          ; preds = %entry
65  %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
66  %call2 = tail call signext i32 @callNonVoid(i32* %b)
67  br label %if.end
68
69if.end:                                           ; preds = %if.then, %entry
70  %retval.0 = phi i32 [ %call2, %if.then ], [ undef, %entry ]
71  ret i32 %retval.0
72}
73
74declare signext i32 @callVoid(...) local_unnamed_addr
75
76declare signext i32 @callNonVoid(i32*) local_unnamed_addr
77
78define dso_local signext i32 @test2(i32* %p1) local_unnamed_addr  {
79; CHECK-LABEL: test2:
80; CHECK:       // %bb.0: // %entry
81; CHECK-NEXT:    stp x30, x19, [sp, #-16]! // 16-byte Folded Spill
82; CHECK-NEXT:    .cfi_def_cfa_offset 16
83; CHECK-NEXT:    .cfi_offset w19, -8
84; CHECK-NEXT:    .cfi_offset w30, -16
85; CHECK-NEXT:    cbz x0, .LBB1_2
86; CHECK-NEXT:  // %bb.1: // %if.end
87; CHECK-NEXT:    adrp x8, a
88; CHECK-NEXT:    ldrsw x8, [x8, :lo12:a]
89; CHECK-NEXT:    mov x19, x0
90; CHECK-NEXT:    cmp x8, x0
91; CHECK-NEXT:    b.eq .LBB1_3
92; CHECK-NEXT:  .LBB1_2: // %return
93; CHECK-NEXT:    mov w0, wzr
94; CHECK-NEXT:    ldp x30, x19, [sp], #16 // 16-byte Folded Reload
95; CHECK-NEXT:    ret
96; CHECK-NEXT:  .LBB1_3: // %if.then2
97; CHECK-NEXT:    bl callVoid
98; CHECK-NEXT:    mov x0, x19
99; CHECK-NEXT:    ldp x30, x19, [sp], #16 // 16-byte Folded Reload
100; CHECK-NEXT:    b callNonVoid
101;
102; CHECK-APPLE-LABEL: test2:
103; CHECK-APPLE:       ; %bb.0: ; %entry
104; CHECK-APPLE-NEXT:    stp x20, x19, [sp, #-32]! ; 16-byte Folded Spill
105; CHECK-APPLE-NEXT:    stp x29, x30, [sp, #16] ; 16-byte Folded Spill
106; CHECK-APPLE-NEXT:    .cfi_def_cfa_offset 32
107; CHECK-APPLE-NEXT:    .cfi_offset w30, -8
108; CHECK-APPLE-NEXT:    .cfi_offset w29, -16
109; CHECK-APPLE-NEXT:    .cfi_offset w19, -24
110; CHECK-APPLE-NEXT:    .cfi_offset w20, -32
111; CHECK-APPLE-NEXT:    cbz x0, LBB1_2
112; CHECK-APPLE-NEXT:  ; %bb.1: ; %if.end
113; CHECK-APPLE-NEXT:  Lloh2:
114; CHECK-APPLE-NEXT:    adrp x8, _a@PAGE
115; CHECK-APPLE-NEXT:  Lloh3:
116; CHECK-APPLE-NEXT:    ldrsw x8, [x8, _a@PAGEOFF]
117; CHECK-APPLE-NEXT:    mov x19, x0
118; CHECK-APPLE-NEXT:    cmp x8, x0
119; CHECK-APPLE-NEXT:    b.eq LBB1_3
120; CHECK-APPLE-NEXT:  LBB1_2: ; %return
121; CHECK-APPLE-NEXT:    ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
122; CHECK-APPLE-NEXT:    mov w0, wzr
123; CHECK-APPLE-NEXT:    ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
124; CHECK-APPLE-NEXT:    ret
125; CHECK-APPLE-NEXT:  LBB1_3: ; %if.then2
126; CHECK-APPLE-NEXT:    bl _callVoid
127; CHECK-APPLE-NEXT:    ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
128; CHECK-APPLE-NEXT:    mov x0, x19
129; CHECK-APPLE-NEXT:    ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
130; CHECK-APPLE-NEXT:    b _callNonVoid
131; CHECK-APPLE-NEXT:    .loh AdrpLdr Lloh2, Lloh3
132entry:
133  %tobool = icmp eq i32* %p1, null
134  br i1 %tobool, label %return, label %if.end
135
136if.end:                                           ; preds = %entry
137  %0 = load i32, i32* @a, align 4, !tbaa !2
138  %conv = sext i32 %0 to i64
139  %1 = inttoptr i64 %conv to i32*
140  %cmp = icmp eq i32* %1, %p1
141  br i1 %cmp, label %if.then2, label %return
142
143if.then2:                                         ; preds = %if.end
144  %call = tail call signext i32 bitcast (i32 (...)* @callVoid to i32 ()*)()
145  %call3 = tail call signext i32 @callNonVoid(i32* nonnull %p1)
146  br label %return
147
148return:                                           ; preds = %if.end, %entry, %if.then2
149  %retval.0 = phi i32 [ %call3, %if.then2 ], [ 0, %entry ], [ 0, %if.end ]
150  ret i32 %retval.0
151}
152
153
154define dso_local i8* @test3(i8** nocapture %p1, i8 zeroext %p2) local_unnamed_addr  {
155; CHECK-LABEL: test3:
156; CHECK:       // %bb.0: // %entry
157; CHECK-NEXT:    str x30, [sp, #-32]! // 8-byte Folded Spill
158; CHECK-NEXT:    stp x20, x19, [sp, #16] // 16-byte Folded Spill
159; CHECK-NEXT:    .cfi_def_cfa_offset 32
160; CHECK-NEXT:    .cfi_offset w19, -8
161; CHECK-NEXT:    .cfi_offset w20, -16
162; CHECK-NEXT:    .cfi_offset w30, -32
163; CHECK-NEXT:    ldr x19, [x0]
164; CHECK-NEXT:    cbz x19, .LBB2_2
165; CHECK-NEXT:  // %bb.1: // %land.rhs
166; CHECK-NEXT:    mov x20, x0
167; CHECK-NEXT:    mov x0, x19
168; CHECK-NEXT:    bl bar
169; CHECK-NEXT:    str x0, [x20]
170; CHECK-NEXT:  .LBB2_2: // %land.end
171; CHECK-NEXT:    mov x0, x19
172; CHECK-NEXT:    ldp x20, x19, [sp, #16] // 16-byte Folded Reload
173; CHECK-NEXT:    ldr x30, [sp], #32 // 8-byte Folded Reload
174; CHECK-NEXT:    ret
175;
176; CHECK-APPLE-LABEL: test3:
177; CHECK-APPLE:       ; %bb.0: ; %entry
178; CHECK-APPLE-NEXT:    stp x20, x19, [sp, #-32]! ; 16-byte Folded Spill
179; CHECK-APPLE-NEXT:    stp x29, x30, [sp, #16] ; 16-byte Folded Spill
180; CHECK-APPLE-NEXT:    .cfi_def_cfa_offset 32
181; CHECK-APPLE-NEXT:    .cfi_offset w30, -8
182; CHECK-APPLE-NEXT:    .cfi_offset w29, -16
183; CHECK-APPLE-NEXT:    .cfi_offset w19, -24
184; CHECK-APPLE-NEXT:    .cfi_offset w20, -32
185; CHECK-APPLE-NEXT:    ldr x19, [x0]
186; CHECK-APPLE-NEXT:    cbz x19, LBB2_2
187; CHECK-APPLE-NEXT:  ; %bb.1: ; %land.rhs
188; CHECK-APPLE-NEXT:    mov x20, x0
189; CHECK-APPLE-NEXT:    mov x0, x19
190; CHECK-APPLE-NEXT:    bl _bar
191; CHECK-APPLE-NEXT:    str x0, [x20]
192; CHECK-APPLE-NEXT:  LBB2_2: ; %land.end
193; CHECK-APPLE-NEXT:    ldp x29, x30, [sp, #16] ; 16-byte Folded Reload
194; CHECK-APPLE-NEXT:    mov x0, x19
195; CHECK-APPLE-NEXT:    ldp x20, x19, [sp], #32 ; 16-byte Folded Reload
196; CHECK-APPLE-NEXT:    ret
197entry:
198  %0 = load i8*, i8** %p1, align 8, !tbaa !6
199  %tobool = icmp eq i8* %0, null
200  br i1 %tobool, label %land.end, label %land.rhs
201
202land.rhs:                                         ; preds = %entry
203  %call = tail call i8* @bar(i8* nonnull %0, i8 zeroext %p2)
204  store i8* %call, i8** %p1, align 8, !tbaa !6
205  br label %land.end
206
207land.end:                                         ; preds = %entry, %land.rhs
208  ret i8* %0
209}
210
211declare i8* @bar(i8*, i8 zeroext) local_unnamed_addr
212
213
214!llvm.module.flags = !{!0}
215!llvm.ident = !{!1}
216
217!0 = !{i32 1, !"wchar_size", i32 4}
218!1 = !{!"clang version 10.0.0 (trunk 367381) (llvm/trunk 367388)"}
219!2 = !{!3, !3, i64 0}
220!3 = !{!"int", !4, i64 0}
221!4 = !{!"omnipotent char", !5, i64 0}
222!5 = !{!"Simple C/C++ TBAA"}
223!6 = !{!7, !7, i64 0}
224!7 = !{!"any pointer", !4, i64 0}
225