xref: /llvm-project/llvm/test/CodeGen/PowerPC/csr-split.ll (revision 7b3bbd83c0c24087072ec5b22a76799ab31f87d5) 
1; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
2; RUN: llc -verify-machineinstrs  -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names \
3; RUN:     -mtriple=powerpc64le-unknown-linux-gnu -mcpu=pwr9 < %s | FileCheck %s --check-prefix=CHECK-PWR9
4; RUN: llc -verify-machineinstrs  -ppc-vsr-nums-as-vr -ppc-asm-full-reg-names \
5; RUN:     -mtriple=powerpc64-unknown-linux-gnu -mcpu=pwr8 < %s | FileCheck %s
6
7; Check CSR split can work properly for tests below.
8
9@a = dso_local local_unnamed_addr global i32 0, align 4
10
11define dso_local signext i32 @test1(ptr %b) local_unnamed_addr  {
12; CHECK-PWR9-LABEL: test1:
13; CHECK-PWR9:       # %bb.0: # %entry
14; CHECK-PWR9-NEXT:    addis r4, r2, a@toc@ha
15; CHECK-PWR9-NEXT:    lwa r4, a@toc@l(r4)
16; CHECK-PWR9-NEXT:    cmpld r4, r3
17; CHECK-PWR9-NEXT:    # implicit-def: $r4
18; CHECK-PWR9-NEXT:    beq cr0, .LBB0_2
19; CHECK-PWR9-NEXT:  # %bb.1: # %if.end
20; CHECK-PWR9-NEXT:    extsw r3, r4
21; CHECK-PWR9-NEXT:    blr
22; CHECK-PWR9-NEXT:  .LBB0_2: # %if.then
23; CHECK-PWR9-NEXT:    mflr r0
24; CHECK-PWR9-NEXT:    .cfi_def_cfa_offset 48
25; CHECK-PWR9-NEXT:    .cfi_offset lr, 16
26; CHECK-PWR9-NEXT:    .cfi_offset r30, -16
27; CHECK-PWR9-NEXT:    std r30, -16(r1) # 8-byte Folded Spill
28; CHECK-PWR9-NEXT:    stdu r1, -48(r1)
29; CHECK-PWR9-NEXT:    std r0, 64(r1)
30; CHECK-PWR9-NEXT:    mr r30, r3
31; CHECK-PWR9-NEXT:    bl callVoid
32; CHECK-PWR9-NEXT:    nop
33; CHECK-PWR9-NEXT:    mr r3, r30
34; CHECK-PWR9-NEXT:    bl callNonVoid
35; CHECK-PWR9-NEXT:    nop
36; CHECK-PWR9-NEXT:    mr r4, r3
37; CHECK-PWR9-NEXT:    addi r1, r1, 48
38; CHECK-PWR9-NEXT:    ld r0, 16(r1)
39; CHECK-PWR9-NEXT:    ld r30, -16(r1) # 8-byte Folded Reload
40; CHECK-PWR9-NEXT:    mtlr r0
41; CHECK-PWR9-NEXT:    extsw r3, r4
42; CHECK-PWR9-NEXT:    blr
43;
44; CHECK-LABEL: test1:
45; CHECK:       # %bb.0: # %entry
46; CHECK-NEXT:    addis r4, r2, a@toc@ha
47; CHECK-NEXT:    lwa r4, a@toc@l(r4)
48; CHECK-NEXT:    cmpld r4, r3
49; CHECK-NEXT:    # implicit-def: $r4
50; CHECK-NEXT:    beq cr0, .LBB0_2
51; CHECK-NEXT:  # %bb.1: # %if.end
52; CHECK-NEXT:    extsw r3, r4
53; CHECK-NEXT:    blr
54; CHECK-NEXT:  .LBB0_2: # %if.then
55; CHECK-NEXT:    mflr r0
56; CHECK-NEXT:    stdu r1, -128(r1)
57; CHECK-NEXT:    std r0, 144(r1)
58; CHECK-NEXT:    .cfi_def_cfa_offset 128
59; CHECK-NEXT:    .cfi_offset lr, 16
60; CHECK-NEXT:    .cfi_offset r30, -16
61; CHECK-NEXT:    std r30, 112(r1) # 8-byte Folded Spill
62; CHECK-NEXT:    mr r30, r3
63; CHECK-NEXT:    bl callVoid
64; CHECK-NEXT:    nop
65; CHECK-NEXT:    mr r3, r30
66; CHECK-NEXT:    bl callNonVoid
67; CHECK-NEXT:    nop
68; CHECK-NEXT:    ld r30, 112(r1) # 8-byte Folded Reload
69; CHECK-NEXT:    mr r4, r3
70; CHECK-NEXT:    addi r1, r1, 128
71; CHECK-NEXT:    ld r0, 16(r1)
72; CHECK-NEXT:    mtlr r0
73; CHECK-NEXT:    extsw r3, r4
74; CHECK-NEXT:    blr
75entry:
76  %0 = load i32, ptr @a, align 4, !tbaa !2
77  %conv = sext i32 %0 to i64
78  %1 = inttoptr i64 %conv to ptr
79  %cmp = icmp eq ptr %1, %b
80  br i1 %cmp, label %if.then, label %if.end
81
82if.then:                                          ; preds = %entry
83  %call = tail call signext i32 @callVoid()
84  %call2 = tail call signext i32 @callNonVoid(ptr %b)
85  br label %if.end
86
87if.end:                                           ; preds = %if.then, %entry
88  %retval.0 = phi i32 [ %call2, %if.then ], [ undef, %entry ]
89  ret i32 %retval.0
90}
91
92declare signext i32 @callVoid(...) local_unnamed_addr
93
94declare signext i32 @callNonVoid(ptr) local_unnamed_addr
95
96define dso_local signext i32 @test2(ptr %p1) local_unnamed_addr  {
97; CHECK-PWR9-LABEL: test2:
98; CHECK-PWR9:       # %bb.0: # %entry
99; CHECK-PWR9-NEXT:    mflr r0
100; CHECK-PWR9-NEXT:    .cfi_def_cfa_offset 48
101; CHECK-PWR9-NEXT:    .cfi_offset lr, 16
102; CHECK-PWR9-NEXT:    .cfi_offset r30, -16
103; CHECK-PWR9-NEXT:    std r30, -16(r1) # 8-byte Folded Spill
104; CHECK-PWR9-NEXT:    stdu r1, -48(r1)
105; CHECK-PWR9-NEXT:    mr r30, r3
106; CHECK-PWR9-NEXT:    li r3, 0
107; CHECK-PWR9-NEXT:    std r0, 64(r1)
108; CHECK-PWR9-NEXT:    cmpldi r30, 0
109; CHECK-PWR9-NEXT:    beq cr0, .LBB1_3
110; CHECK-PWR9-NEXT:  # %bb.1: # %if.end
111; CHECK-PWR9-NEXT:    addis r4, r2, a@toc@ha
112; CHECK-PWR9-NEXT:    lwa r4, a@toc@l(r4)
113; CHECK-PWR9-NEXT:    cmpld r4, r30
114; CHECK-PWR9-NEXT:    bne cr0, .LBB1_3
115; CHECK-PWR9-NEXT:  # %bb.2: # %if.then2
116; CHECK-PWR9-NEXT:    bl callVoid
117; CHECK-PWR9-NEXT:    nop
118; CHECK-PWR9-NEXT:    mr r3, r30
119; CHECK-PWR9-NEXT:    bl callNonVoid
120; CHECK-PWR9-NEXT:    nop
121; CHECK-PWR9-NEXT:  .LBB1_3: # %return
122; CHECK-PWR9-NEXT:    addi r1, r1, 48
123; CHECK-PWR9-NEXT:    ld r0, 16(r1)
124; CHECK-PWR9-NEXT:    ld r30, -16(r1) # 8-byte Folded Reload
125; CHECK-PWR9-NEXT:    mtlr r0
126; CHECK-PWR9-NEXT:    blr
127;
128; CHECK-LABEL: test2:
129; CHECK:       # %bb.0: # %entry
130; CHECK-NEXT:    mflr r0
131; CHECK-NEXT:    stdu r1, -128(r1)
132; CHECK-NEXT:    std r0, 144(r1)
133; CHECK-NEXT:    .cfi_def_cfa_offset 128
134; CHECK-NEXT:    .cfi_offset lr, 16
135; CHECK-NEXT:    .cfi_offset r30, -16
136; CHECK-NEXT:    std r30, 112(r1) # 8-byte Folded Spill
137; CHECK-NEXT:    mr r30, r3
138; CHECK-NEXT:    li r3, 0
139; CHECK-NEXT:    cmpldi r30, 0
140; CHECK-NEXT:    beq cr0, .LBB1_3
141; CHECK-NEXT:  # %bb.1: # %if.end
142; CHECK-NEXT:    addis r4, r2, a@toc@ha
143; CHECK-NEXT:    lwa r4, a@toc@l(r4)
144; CHECK-NEXT:    cmpld r4, r30
145; CHECK-NEXT:    bne cr0, .LBB1_3
146; CHECK-NEXT:  # %bb.2: # %if.then2
147; CHECK-NEXT:    bl callVoid
148; CHECK-NEXT:    nop
149; CHECK-NEXT:    mr r3, r30
150; CHECK-NEXT:    bl callNonVoid
151; CHECK-NEXT:    nop
152; CHECK-NEXT:  .LBB1_3: # %return
153; CHECK-NEXT:    ld r30, 112(r1) # 8-byte Folded Reload
154; CHECK-NEXT:    addi r1, r1, 128
155; CHECK-NEXT:    ld r0, 16(r1)
156; CHECK-NEXT:    mtlr r0
157; CHECK-NEXT:    blr
158entry:
159  %tobool = icmp eq ptr %p1, null
160  br i1 %tobool, label %return, label %if.end
161
162if.end:                                           ; preds = %entry
163  %0 = load i32, ptr @a, align 4, !tbaa !2
164  %conv = sext i32 %0 to i64
165  %1 = inttoptr i64 %conv to ptr
166  %cmp = icmp eq ptr %1, %p1
167  br i1 %cmp, label %if.then2, label %return
168
169if.then2:                                         ; preds = %if.end
170  %call = tail call signext i32 @callVoid()
171  %call3 = tail call signext i32 @callNonVoid(ptr nonnull %p1)
172  br label %return
173
174return:                                           ; preds = %if.end, %entry, %if.then2
175  %retval.0 = phi i32 [ %call3, %if.then2 ], [ 0, %entry ], [ 0, %if.end ]
176  ret i32 %retval.0
177}
178
179
180define dso_local ptr @test3(ptr nocapture %p1, i8 zeroext %p2) local_unnamed_addr  {
181; CHECK-PWR9-LABEL: test3:
182; CHECK-PWR9:       # %bb.0: # %entry
183; CHECK-PWR9-NEXT:    mflr r0
184; CHECK-PWR9-NEXT:    .cfi_def_cfa_offset 64
185; CHECK-PWR9-NEXT:    .cfi_offset lr, 16
186; CHECK-PWR9-NEXT:    .cfi_offset r29, -24
187; CHECK-PWR9-NEXT:    .cfi_offset r30, -16
188; CHECK-PWR9-NEXT:    std r29, -24(r1) # 8-byte Folded Spill
189; CHECK-PWR9-NEXT:    std r30, -16(r1) # 8-byte Folded Spill
190; CHECK-PWR9-NEXT:    stdu r1, -64(r1)
191; CHECK-PWR9-NEXT:    std r0, 80(r1)
192; CHECK-PWR9-NEXT:    ld r30, 0(r3)
193; CHECK-PWR9-NEXT:    cmpldi r30, 0
194; CHECK-PWR9-NEXT:    beq cr0, .LBB2_2
195; CHECK-PWR9-NEXT:  # %bb.1: # %land.rhs
196; CHECK-PWR9-NEXT:    mr r29, r3
197; CHECK-PWR9-NEXT:    mr r3, r30
198; CHECK-PWR9-NEXT:    bl bar
199; CHECK-PWR9-NEXT:    nop
200; CHECK-PWR9-NEXT:    std r3, 0(r29)
201; CHECK-PWR9-NEXT:  .LBB2_2: # %land.end
202; CHECK-PWR9-NEXT:    mr r3, r30
203; CHECK-PWR9-NEXT:    addi r1, r1, 64
204; CHECK-PWR9-NEXT:    ld r0, 16(r1)
205; CHECK-PWR9-NEXT:    ld r30, -16(r1) # 8-byte Folded Reload
206; CHECK-PWR9-NEXT:    ld r29, -24(r1) # 8-byte Folded Reload
207; CHECK-PWR9-NEXT:    mtlr r0
208; CHECK-PWR9-NEXT:    blr
209;
210; CHECK-LABEL: test3:
211; CHECK:       # %bb.0: # %entry
212; CHECK-NEXT:    mflr r0
213; CHECK-NEXT:    stdu r1, -144(r1)
214; CHECK-NEXT:    std r0, 160(r1)
215; CHECK-NEXT:    .cfi_def_cfa_offset 144
216; CHECK-NEXT:    .cfi_offset lr, 16
217; CHECK-NEXT:    .cfi_offset r29, -24
218; CHECK-NEXT:    .cfi_offset r30, -16
219; CHECK-NEXT:    std r30, 128(r1) # 8-byte Folded Spill
220; CHECK-NEXT:    ld r30, 0(r3)
221; CHECK-NEXT:    std r29, 120(r1) # 8-byte Folded Spill
222; CHECK-NEXT:    cmpldi r30, 0
223; CHECK-NEXT:    beq cr0, .LBB2_2
224; CHECK-NEXT:  # %bb.1: # %land.rhs
225; CHECK-NEXT:    mr r29, r3
226; CHECK-NEXT:    mr r3, r30
227; CHECK-NEXT:    bl bar
228; CHECK-NEXT:    nop
229; CHECK-NEXT:    std r3, 0(r29)
230; CHECK-NEXT:  .LBB2_2: # %land.end
231; CHECK-NEXT:    mr r3, r30
232; CHECK-NEXT:    ld r30, 128(r1) # 8-byte Folded Reload
233; CHECK-NEXT:    ld r29, 120(r1) # 8-byte Folded Reload
234; CHECK-NEXT:    addi r1, r1, 144
235; CHECK-NEXT:    ld r0, 16(r1)
236; CHECK-NEXT:    mtlr r0
237; CHECK-NEXT:    blr
238entry:
239  %0 = load ptr, ptr %p1, align 8, !tbaa !6
240  %tobool = icmp eq ptr %0, null
241  br i1 %tobool, label %land.end, label %land.rhs
242
243land.rhs:                                         ; preds = %entry
244  %call = tail call ptr @bar(ptr nonnull %0, i8 zeroext %p2)
245  store ptr %call, ptr %p1, align 8, !tbaa !6
246  br label %land.end
247
248land.end:                                         ; preds = %entry, %land.rhs
249  ret ptr %0
250}
251
252declare ptr @bar(ptr, i8 zeroext) local_unnamed_addr
253
254
255!llvm.module.flags = !{!0}
256!llvm.ident = !{!1}
257
258!0 = !{i32 1, !"wchar_size", i32 4}
259!1 = !{!"clang version 10.0.0 (trunk 367381) (llvm/trunk 367388)"}
260!2 = !{!3, !3, i64 0}
261!3 = !{!"int", !4, i64 0}
262!4 = !{!"omnipotent char", !5, i64 0}
263!5 = !{!"Simple C/C++ TBAA"}
264!6 = !{!7, !7, i64 0}
265!7 = !{!"any pointer", !4, i64 0}
266