# 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 ...