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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -march=riscv64 -run-pass=prologepilog -simplify-mir -o - %s | FileCheck %s
# verify live-on-entry registers are not marked killed by spills
--- |
declare void @vararg(i32 signext, ...)
define void @test1() {
entry:
%a = alloca i32, align 4
%0 = call i8* @llvm.returnaddress(i32 0)
%1 = ptrtoint i8* %0 to i64
%conv = trunc i64 %1 to i32
store i32 %conv, i32* %a, align 4
%2 = load i32, i32* %a, align 4
call void (i32, ...) @vararg(i32 signext 0, i32 signext %2)
ret void
}
; Function Attrs: nofree nosync nounwind readnone willreturn
declare i8* @llvm.returnaddress(i32 immarg) #0
attributes #0 = { nofree nosync nounwind readnone willreturn }
...
---
name: test1
alignment: 4
exposesReturnsTwice: false
legalized: false
regBankSelected: false
selected: false
failedISel: false
tracksRegLiveness: true
hasWinCFI: false
registers: []
liveins:
- { reg: '$x1', virtual-reg: '' }
frameInfo:
isFrameAddressTaken: false
isReturnAddressTaken: true
hasStackMap: false
hasPatchPoint: false
stackSize: 0
offsetAdjustment: 0
maxAlignment: 4
adjustsStack: false
hasCalls: true
stackProtector: ''
maxCallFrameSize: 4294967295
cvBytesOfCalleeSavedRegisters: 0
hasOpaqueSPAdjustment: false
hasVAStart: false
hasMustTailInVarArgFunc: false
hasTailCall: false
localFrameSize: 0
savePoint: ''
restorePoint: ''
fixedStack: []
stack:
- { id: 0, name: a, type: default, offset: 0, size: 4, alignment: 4,
stack-id: default, callee-saved-register: '', callee-saved-restored: true,
debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }
callSites: []
debugValueSubstitutions: []
constants: []
machineFunctionInfo: {}
body: |
bb.0.entry:
liveins: $x1
; CHECK-LABEL: name: test1
; CHECK: liveins: $x1
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $x2 = frame-setup ADDI $x2, -16
; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 16
; CHECK-NEXT: SD $x1, $x2, 8 :: (store (s64) into %stack.1)
; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $x1, -8
; CHECK-NEXT: SW renamable $x1, $x2, 4 :: (store (s32) into %ir.a)
; CHECK-NEXT: renamable $x11 = ADDIW killed renamable $x1, 0
; CHECK-NEXT: $x10 = COPY $x0
; CHECK-NEXT: PseudoCALL target-flags(riscv-plt) @vararg, csr_ilp32_lp64, implicit-def dead $x1, implicit killed $x10, implicit $x11, implicit-def $x2
; CHECK-NEXT: $x1 = LD $x2, 8 :: (load (s64) from %stack.1)
; CHECK-NEXT: $x2 = frame-destroy ADDI $x2, 16
; CHECK-NEXT: PseudoRET
SW renamable $x1, %stack.0.a, 0 :: (store (s32) into %ir.a)
renamable $x11 = ADDIW killed renamable $x1, 0
ADJCALLSTACKDOWN 0, 0, implicit-def dead $x2, implicit $x2
$x10 = COPY $x0
PseudoCALL target-flags(riscv-plt) @vararg, csr_ilp32_lp64, implicit-def dead $x1, implicit killed $x10, implicit $x11, implicit-def $x2
ADJCALLSTACKUP 0, 0, implicit-def dead $x2, implicit $x2
PseudoRET
...
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