# RUN: llc -mtriple riscv64 -mattr=+m,+v -run-pass=prologepilog \
# RUN: -riscv-v-vector-bits-min=512 -o - %s | FileCheck %s
#
# Stack layout of this program
# |--------------------------| -- <-- Incoming SP
# | a7 (Vaarg) |
# | ------------------------ | -- <-- New SP + vlenb + 72
# | a6 (Vaarg) |
# | ------------------------ | -- <-- New SP + vlenb + 64
# | ra (Callee-saved reg) |
# | ------------------------ | -- <-- New SP + vlenb + 56
# | s0 (Callee-saved reg) |
# | ------------------------ | -- <-- New SP + vlenb + 48
# | s1 (Callee-saved reg) |
# | ------------------------ | -- <-- New SP + vlenb + 40
# | 8 bytes of padding |
# | ------------------------ | -- <-- New SP + vlenb
# | v8 (RVV objects) |
# | ------------------------ | -- <-- New SP + 32
# | buf1 |
# |--------------------------| -- <-- New SP + 16
# | Stack ID 5 |
# |--------------------------| -- <-- New SP + 8
# | Stack ID 6 |
# |--------------------------| -- <-- New SP
--- |
; ModuleID = 'wrong-stack-offset-for-rvv-object.ll'
source_filename = "wrong-stack-offset-for-rvv-object.ll"
target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n64-S128"
target triple = "riscv64"
%struct = type { i32 }
define void @asm_fprintf(%struct %file, ptr %p, ptr %buf, ptr %arrayidx3, ptr %0, ptr %1, ...) #0 {
entry:
%buf1 = alloca [10 x i8], i32 0, align 8
%arrayidx32 = getelementptr inbounds [10 x i8], ptr %buf, i64 0, i64 1
br label %while.cond
while.cond: ; preds = %while.cond, %sw.bb, %entry
%incdec.ptr = getelementptr inbounds i8, ptr undef, i64 1
%2 = load i8, ptr null, align 1
%3 = zext i8 0 to i64
%cond = icmp eq i64 %3, 0
br i1 %cond, label %sw.bb, label %while.cond
sw.bb: ; preds = %while.cond
%4 = load i8, ptr null, align 1
store <2 x i8> zeroinitializer, ptr %0, align 1
%call = call i32 (ptr, ...) @fprintf(ptr %p)
br label %while.cond
}
declare i32 @fprintf(ptr, ...) #0
attributes #0 = { "target-features"="+m,+v" }
...
---
name: asm_fprintf
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
failsVerification: false
tracksDebugUserValues: true
registers: []
liveins:
- { reg: '$x11', virtual-reg: '' }
- { reg: '$x14', virtual-reg: '' }
- { reg: '$x16', virtual-reg: '' }
- { reg: '$x17', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: false
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 8
adjustsStack: true
hasCalls: true
stackProtector: ''
maxCallFrameSize: 4294967295
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack:
- { id: 0, type: default, offset: -8, size: 8, alignment: 8, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, type: default, offset: -16, size: 8, alignment: 16, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 2, type: default, offset: -16, size: 8, alignment: 16, stack-id: default,
isImmutable: true, isAliased: false, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
stack:
- { id: 0, name: buf1, type: default, offset: 0, size: 1, alignment: 8,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
- { id: 1, name: '', type: spill-slot, offset: 0, size: 8, alignment: 8,
stack-id: scalable-vector, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo:
varArgsFrameIndex: -1
varArgsSaveSize: 16
body: |
; CHECK-LABEL: name: asm_fprintf
; CHECK: stack:
; CHECK-NEXT: - { id: 0, name: buf1, type: default, offset: -48, size: 1, alignment: 8,
; CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
; CHECK-NEXT: - { id: 1, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8,
; CHECK-NEXT: stack-id: scalable-vector, callee-saved-register: '', callee-saved-restored: true,
; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
; CHECK-NEXT: - { id: 2, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,
; CHECK-NEXT: stack-id: default, callee-saved-register: '$x1', callee-saved-restored: true,
; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
; CHECK-NEXT: - { id: 3, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,
; CHECK-NEXT: stack-id: default, callee-saved-register: '$x8', callee-saved-restored: true,
; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
; CHECK-NEXT: - { id: 4, name: '', type: spill-slot, offset: -40, size: 8, alignment: 8,
; CHECK-NEXT: stack-id: default, callee-saved-register: '$x9', callee-saved-restored: true,
; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
; CHECK-NEXT: - { id: 5, name: '', type: default, offset: -56, size: 8, alignment: 8,
; CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
; CHECK-NEXT: - { id: 6, name: '', type: default, offset: -64, size: 8, alignment: 8,
; CHECK-NEXT: stack-id: default, callee-saved-register: '', callee-saved-restored: true,
; CHECK-NEXT: debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
; CHECK: bb.0.entry:
; CHECK-NEXT: successors: %bb.1(0x80000000)
; CHECK-NEXT: liveins: $x11, $x14, $x16, $x17, $x1, $x8, $x9
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $x2 = frame-setup ADDI $x2, -80
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 80
; CHECK-NEXT: SD killed $x1, $x2, 56 :: (store (s64) into %stack.2)
; CHECK-NEXT: SD killed $x8, $x2, 48 :: (store (s64) into %stack.3)
; CHECK-NEXT: SD killed $x9, $x2, 40 :: (store (s64) into %stack.4)
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $x1, -24
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $x8, -32
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $x9, -40
; CHECK-NEXT: $x10 = frame-setup PseudoReadVLENB
; CHECK-NEXT: $x10 = frame-setup SLLI killed $x10, 1
; CHECK-NEXT: $x2 = frame-setup SUB $x2, killed $x10
; CHECK-NEXT: frame-setup CFI_INSTRUCTION escape 0x0f, 0x0e, 0x72, 0x00, 0x11, 0xd0, 0x00, 0x22, 0x11, 0x02, 0x92, 0xa2, 0x38, 0x00, 0x1e, 0x22
; CHECK-NEXT: renamable $x8 = COPY $x14
; CHECK-NEXT: renamable $x9 = COPY $x11
; CHECK-NEXT: $x10 = PseudoReadVLENB
; CHECK-NEXT: $x10 = SLLI killed $x10, 1
; CHECK-NEXT: $x10 = ADD $x2, killed $x10
; CHECK-NEXT: SD killed renamable $x17, killed $x10, 72 :: (store (s64))
; CHECK-NEXT: $x10 = PseudoReadVLENB
; CHECK-NEXT: $x10 = SLLI killed $x10, 1
; CHECK-NEXT: $x10 = ADD $x2, killed $x10
; CHECK-NEXT: SD killed renamable $x16, killed $x10, 64 :: (store (s64) into %fixed-stack.1, align 16)
; CHECK-NEXT: dead $x0 = PseudoVSETIVLI 2, 69 /* e8, mf8, ta, mu */, implicit-def $vl, implicit-def $vtype
; CHECK-NEXT: renamable $v8 = PseudoVMV_V_I_MF8 undef $v8, 0, 2, 3 /* e8 */, 0 /* tu, mu */, implicit $vl, implicit $vtype
; CHECK-NEXT: $x10 = ADDI $x2, 32
; CHECK-NEXT: VS1R_V killed renamable $v8, killed $x10 :: (store unknown-size into %stack.1, align 8)
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.1.while.cond:
; CHECK-NEXT: successors: %bb.2(0x30000000), %bb.1(0x50000000)
; CHECK-NEXT: liveins: $x8, $x9
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: BNE $x0, $x0, %bb.1
; CHECK-NEXT: PseudoBR %bb.2
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: bb.2.sw.bb:
; CHECK-NEXT: successors: %bb.1(0x80000000)
; CHECK-NEXT: liveins: $x8, $x9
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: dead $x0 = PseudoVSETIVLI 2, 69 /* e8, mf8, ta, mu */, implicit-def $vl, implicit-def $vtype
; CHECK-NEXT: $x10 = ADDI $x2, 32
; CHECK-NEXT: renamable $v8 = VL1RE8_V killed $x10 :: (load unknown-size from %stack.1, align 8)
; CHECK-NEXT: PseudoVSE8_V_MF8 killed renamable $v8, renamable $x8, 2, 3 /* e8 */, implicit $vl, implicit $vtype :: (store (s16) into %ir.0, align 1)
; CHECK-NEXT: $x10 = COPY renamable $x9
; CHECK-NEXT: PseudoCALL target-flags(riscv-call) @fprintf, csr_ilp32d_lp64d, implicit-def dead $x1, implicit killed $x10, implicit-def $x2, implicit-def dead $x10
; CHECK-NEXT: PseudoBR %bb.1
bb.0.entry:
successors: %bb.1(0x80000000)
liveins: $x11, $x14, $x16, $x17
renamable $x8 = COPY $x14
renamable $x9 = COPY $x11
SD killed renamable $x17, %fixed-stack.0, 0 :: (store (s64))
SD killed renamable $x16, %fixed-stack.1, 0 :: (store (s64) into %fixed-stack.1, align 16)
dead $x0 = PseudoVSETIVLI 2, 69, implicit-def $vl, implicit-def $vtype
renamable $v8 = PseudoVMV_V_I_MF8 undef $v8, 0, 2, 3, 0, implicit $vl, implicit $vtype
VS1R_V killed renamable $v8, %stack.1 :: (store unknown-size into %stack.1, align 8)
bb.1.while.cond:
successors: %bb.2(0x30000000), %bb.1(0x50000000)
liveins: $x8, $x9
BNE $x0, $x0, %bb.1
PseudoBR %bb.2
bb.2.sw.bb:
successors: %bb.1(0x80000000)
liveins: $x8, $x9
dead $x0 = PseudoVSETIVLI 2, 69, implicit-def $vl, implicit-def $vtype
renamable $v8 = VL1RE8_V %stack.1 :: (load unknown-size from %stack.1, align 8)
PseudoVSE8_V_MF8 killed renamable $v8, renamable $x8, 2, 3, implicit $vl, implicit $vtype :: (store (s16) into %ir.0, align 1)
ADJCALLSTACKDOWN 0, 0, implicit-def dead $x2, implicit $x2
$x10 = COPY renamable $x9
PseudoCALL target-flags(riscv-call) @fprintf, csr_ilp32d_lp64d, implicit-def dead $x1, implicit killed $x10, implicit-def $x2, implicit-def dead $x10
ADJCALLSTACKUP 0, 0, implicit-def dead $x2, implicit $x2
PseudoBR %bb.1
...
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