1# RUN: llc -mtriple riscv64 -mattr=+m,+v -run-pass=prologepilog \
2# RUN:     -riscv-v-vector-bits-min=512 -o - %s | FileCheck %s
3#
4# Stack layout of this program
5# |--------------------------| -- <-- Incoming SP
6# | a7 (Vaarg)               |
7# | ------------------------ | -- <-- New SP + vlenb  + 56
8# | a6 (Vaarg)               |
9# | ------------------------ | -- <-- New SP + vlenb  + 48
10# | ra (Callee-saved reg)    |
11# | ------------------------ | -- <-- New SP + vlenb  + 40
12# | s0 (Callee-saved reg)    |
13# | ------------------------ | -- <-- New SP + vlenb  + 32
14# | s1 (Callee-saved reg)    |
15# | ------------------------ | -- <-- New SP + vlenb  + 24
16# | v8 (RVV objects)         |
17# | ------------------------ | -- <-- New SP + 24
18# | buf1                     |
19# |--------------------------| -- <-- New SP + 16
20# | Stack ID 5               |
21# |--------------------------| -- <-- New SP + 8
22# | Stack ID 6               |
23# |--------------------------| -- <-- New SP
24
25--- |
26  ; ModuleID = 'wrong-stack-offset-for-rvv-object.ll'
27  source_filename = "wrong-stack-offset-for-rvv-object.ll"
28  target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n64-S128"
29  target triple = "riscv64"
30
31  %struct = type { i32 }
32
33  define void @asm_fprintf(%struct %file, i8* %p, [10 x i8]* %buf, i8* %arrayidx3, <2 x i8>* %0, i8* %1, ...) #0 {
34  entry:
35    %buf1 = alloca [10 x i8], i32 0, align 8
36    %arrayidx32 = getelementptr inbounds [10 x i8], [10 x i8]* %buf, i64 0, i64 1
37    br label %while.cond
38
39  while.cond:                                       ; preds = %while.cond, %sw.bb, %entry
40    %incdec.ptr = getelementptr inbounds i8, i8* undef, i64 1
41    %2 = load i8, i8* null, align 1
42    %3 = zext i8 0 to i64
43    %cond = icmp eq i64 %3, 0
44    br i1 %cond, label %sw.bb, label %while.cond
45
46  sw.bb:                                            ; preds = %while.cond
47    %4 = load i8, i8* null, align 1
48    store <2 x i8> zeroinitializer, <2 x i8>* %0, align 1
49    %call = call i32 (i8*, ...) @fprintf(i8* %p)
50    br label %while.cond
51  }
52
53  declare i32 @fprintf(i8*, ...) #0
54
55  attributes #0 = { "target-features"="+m,+v" }
56
57...
58---
59name:            asm_fprintf
60alignment:       4
61exposesReturnsTwice: false
62legalized:       false
63regBankSelected: false
64selected:        false
65failedISel:      false
66tracksRegLiveness: true
67hasWinCFI:       false
68failsVerification: false
69tracksDebugUserValues: true
70registers:       []
71liveins:
72  - { reg: '$x11', virtual-reg: '' }
73  - { reg: '$x14', virtual-reg: '' }
74  - { reg: '$x16', virtual-reg: '' }
75  - { reg: '$x17', virtual-reg: '' }
76frameInfo:
77  isFrameAddressTaken: false
78  isReturnAddressTaken: false
79  hasStackMap:     false
80  hasPatchPoint:   false
81  stackSize:       0
82  offsetAdjustment: 0
83  maxAlignment:    8
84  adjustsStack:    false
85  hasCalls:        true
86  stackProtector:  ''
87  maxCallFrameSize: 4294967295
88  cvBytesOfCalleeSavedRegisters: 0
89  hasOpaqueSPAdjustment: false
90  hasVAStart:      false
91  hasMustTailInVarArgFunc: false
92  hasTailCall:     false
93  localFrameSize:  0
94  savePoint:       ''
95  restorePoint:    ''
96fixedStack:
97  - { id: 0, type: default, offset: -8, size: 8, alignment: 8, stack-id: default,
98      isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
99      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
100  - { id: 1, type: default, offset: -16, size: 8, alignment: 16, stack-id: default,
101      isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
102      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
103  - { id: 2, type: default, offset: -16, size: 8, alignment: 16, stack-id: default,
104      isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
105      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
106stack:
107  - { id: 0, name: buf1, type: default, offset: 0, size: 1, alignment: 8,
108      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
109      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
110  - { id: 1, name: '', type: spill-slot, offset: 0, size: 8, alignment: 8,
111      stack-id: scalable-vector, callee-saved-register: '', callee-saved-restored: true,
112      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
113callSites:       []
114debugValueSubstitutions: []
115constants:       []
116machineFunctionInfo:
117  varArgsFrameIndex: -1
118  varArgsSaveSize: 16
119body:             |
120  ; CHECK-LABEL: name: asm_fprintf
121  ; CHECK: stack:
122  ; CHECK-NEXT:  - { id: 0, name: buf1, type: default, offset: -48, size: 1, alignment: 8,
123  ; CHECK-NEXT:      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
124  ; CHECK-NEXT:      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
125  ; CHECK-NEXT:  - { id: 1, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8,
126  ; CHECK-NEXT:      stack-id: scalable-vector, callee-saved-register: '', callee-saved-restored: true,
127  ; CHECK-NEXT:      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
128  ; CHECK-NEXT:  - { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,
129  ; CHECK-NEXT:      stack-id: default, callee-saved-register: '$x1', callee-saved-restored: true,
130  ; CHECK-NEXT:      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
131  ; CHECK-NEXT:  - { id: 3, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,
132  ; CHECK-NEXT:      stack-id: default, callee-saved-register: '$x8', callee-saved-restored: true,
133  ; CHECK-NEXT:      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
134  ; CHECK-NEXT:  - { id: 4, name: '', type: spill-slot, offset: -40, size: 8, alignment: 8,
135  ; CHECK-NEXT:      stack-id: default, callee-saved-register: '$x9', callee-saved-restored: true,
136  ; CHECK-NEXT:      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
137  ; CHECK-NEXT:  - { id: 5, name: '', type: default, offset: -56, size: 8, alignment: 8,
138  ; CHECK-NEXT:      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
139  ; CHECK-NEXT:      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
140  ; CHECK-NEXT:  - { id: 6, name: '', type: default, offset: -64, size: 8, alignment: 8,
141  ; CHECK-NEXT:      stack-id: default, callee-saved-register: '', callee-saved-restored: true,
142  ; CHECK-NEXT:      debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
143  ; CHECK: bb.0.entry:
144  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
145  ; CHECK-NEXT:   liveins: $x11, $x14, $x16, $x17, $x1, $x8, $x9
146  ; CHECK-NEXT: {{  $}}
147  ; CHECK-NEXT:   $x2 = frame-setup ADDI $x2, -64
148  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION def_cfa_offset 64
149  ; CHECK-NEXT:   SD killed $x1, $x2, 40 :: (store (s64) into %stack.2)
150  ; CHECK-NEXT:   SD killed $x8, $x2, 32 :: (store (s64) into %stack.3)
151  ; CHECK-NEXT:   SD killed $x9, $x2, 24 :: (store (s64) into %stack.4)
152  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $x1, -24
153  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $x8, -32
154  ; CHECK-NEXT:   frame-setup CFI_INSTRUCTION offset $x9, -40
155  ; CHECK-NEXT:   $x10 = frame-setup PseudoReadVLENB
156  ; CHECK-NEXT:   $x2 = frame-setup SUB $x2, killed $x10
157  ; CHECK-NEXT:   renamable $x8 = COPY $x14
158  ; CHECK-NEXT:   renamable $x9 = COPY $x11
159  ; CHECK-NEXT:   $x10 = PseudoReadVLENB
160  ; CHECK-NEXT:   $x10 = ADD $x2, killed $x10
161  ; CHECK-NEXT:   SD killed renamable $x17, killed $x10, 56 :: (store (s64))
162  ; CHECK-NEXT:   $x10 = PseudoReadVLENB
163  ; CHECK-NEXT:   $x10 = ADD $x2, killed $x10
164  ; CHECK-NEXT:   SD killed renamable $x16, killed $x10, 48 :: (store (s64) into %fixed-stack.1, align 16)
165  ; CHECK-NEXT:   dead $x0 = PseudoVSETIVLI 2, 69 /* e8, mf8, ta, mu */, implicit-def $vl, implicit-def $vtype
166  ; CHECK-NEXT:   renamable $v8 = PseudoVMV_V_I_MF8 0, 2, 3 /* e8 */, implicit $vl, implicit $vtype
167  ; CHECK-NEXT:   $x10 = ADDI $x2, 24
168  ; CHECK-NEXT:   PseudoVSPILL_M1 killed renamable $v8, killed $x10 :: (store unknown-size into %stack.1, align 8)
169  ; CHECK-NEXT: {{  $}}
170  ; CHECK-NEXT: bb.1.while.cond:
171  ; CHECK-NEXT:   successors: %bb.2(0x30000000), %bb.1(0x50000000)
172  ; CHECK-NEXT:   liveins: $x8, $x9
173  ; CHECK-NEXT: {{  $}}
174  ; CHECK-NEXT:   BNE $x0, $x0, %bb.1
175  ; CHECK-NEXT:   PseudoBR %bb.2
176  ; CHECK-NEXT: {{  $}}
177  ; CHECK-NEXT: bb.2.sw.bb:
178  ; CHECK-NEXT:   successors: %bb.1(0x80000000)
179  ; CHECK-NEXT:   liveins: $x8, $x9
180  ; CHECK-NEXT: {{  $}}
181  ; CHECK-NEXT:   dead $x0 = PseudoVSETIVLI 2, 69 /* e8, mf8, ta, mu */, implicit-def $vl, implicit-def $vtype
182  ; CHECK-NEXT:   $x10 = ADDI $x2, 24
183  ; CHECK-NEXT:   renamable $v8 = PseudoVRELOAD_M1 killed $x10 :: (load unknown-size from %stack.1, align 8)
184  ; CHECK-NEXT:   PseudoVSE8_V_MF8 killed renamable $v8, renamable $x8, 2, 3 /* e8 */, implicit $vl, implicit $vtype :: (store (s16) into %ir.0, align 1)
185  ; CHECK-NEXT:   $x10 = COPY renamable $x9
186  ; CHECK-NEXT:   PseudoCALL target-flags(riscv-plt) @fprintf, csr_ilp32d_lp64d, implicit-def dead $x1, implicit killed $x10, implicit-def $x2, implicit-def dead $x10
187  ; CHECK-NEXT:   PseudoBR %bb.1
188  bb.0.entry:
189    successors: %bb.1(0x80000000)
190    liveins: $x11, $x14, $x16, $x17
191
192    renamable $x8 = COPY $x14
193    renamable $x9 = COPY $x11
194    SD killed renamable $x17, %fixed-stack.0, 0 :: (store (s64))
195    SD killed renamable $x16, %fixed-stack.1, 0 :: (store (s64) into %fixed-stack.1, align 16)
196    dead $x0 = PseudoVSETIVLI 2, 69, implicit-def $vl, implicit-def $vtype
197    renamable $v8 = PseudoVMV_V_I_MF8 0, 2, 3, implicit $vl, implicit $vtype
198    PseudoVSPILL_M1 killed renamable $v8, %stack.1 :: (store unknown-size into %stack.1, align 8)
199
200  bb.1.while.cond:
201    successors: %bb.2(0x30000000), %bb.1(0x50000000)
202    liveins: $x8, $x9
203
204    BNE $x0, $x0, %bb.1
205    PseudoBR %bb.2
206
207  bb.2.sw.bb:
208    successors: %bb.1(0x80000000)
209    liveins: $x8, $x9
210
211    dead $x0 = PseudoVSETIVLI 2, 69, implicit-def $vl, implicit-def $vtype
212    renamable $v8 = PseudoVRELOAD_M1 %stack.1 :: (load unknown-size from %stack.1, align 8)
213    PseudoVSE8_V_MF8 killed renamable $v8, renamable $x8, 2, 3, implicit $vl, implicit $vtype :: (store (s16) into %ir.0, align 1)
214    ADJCALLSTACKDOWN 0, 0, implicit-def dead $x2, implicit $x2
215    $x10 = COPY renamable $x9
216    PseudoCALL target-flags(riscv-plt) @fprintf, csr_ilp32d_lp64d, implicit-def dead $x1, implicit killed $x10, implicit-def $x2, implicit-def dead $x10
217    ADJCALLSTACKUP 0, 0, implicit-def dead $x2, implicit $x2
218    PseudoBR %bb.1
219
220...
221