# NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py # RUN: llc -mtriple riscv64 -mattr=+m,+v -target-abi=lp64 -start-before=prologepilog -o - \ # RUN: -verify-machineinstrs %s | FileCheck %s --- | target datalayout = "e-m:e-p:64:64-i64:64-i128:128-n64-S128" target triple = "riscv64" define void @spillslot() { ; CHECK-LABEL: spillslot: ; CHECK: # %bb.0: ; CHECK-NEXT: addi sp, sp, -2032 ; CHECK-NEXT: .cfi_def_cfa_offset 2032 ; CHECK-NEXT: sd ra, 2024(sp) # 8-byte Folded Spill ; CHECK-NEXT: sd s0, 2016(sp) # 8-byte Folded Spill ; CHECK-NEXT: .cfi_offset ra, -8 ; CHECK-NEXT: .cfi_offset s0, -16 ; CHECK-NEXT: addi s0, sp, 2032 ; CHECK-NEXT: .cfi_def_cfa s0, 0 ; CHECK-NEXT: addi sp, sp, -272 ; CHECK-NEXT: sd a0, 8(sp) ; CHECK-NEXT: csrr a0, vlenb ; CHECK-NEXT: sd a1, 0(sp) ; CHECK-NEXT: lui a1, 1 ; CHECK-NEXT: addiw a1, a1, -1024 ; CHECK-NEXT: mul a0, a0, a1 ; CHECK-NEXT: ld a1, 0(sp) ; CHECK-NEXT: sub sp, sp, a0 ; CHECK-NEXT: andi sp, sp, -128 ; CHECK-NEXT: lui a0, 1 ; CHECK-NEXT: addiw a0, a0, -1808 ; CHECK-NEXT: add a0, sp, a0 ; CHECK-NEXT: vs1r.v v25, (a0) # Unknown-size Folded Spill ; CHECK-NEXT: ld a0, 8(sp) ; CHECK-NEXT: call spillslot@plt ; CHECK-NEXT: addi sp, s0, -2048 ; CHECK-NEXT: addi sp, sp, -256 ; CHECK-NEXT: addi sp, sp, 272 ; CHECK-NEXT: ld ra, 2024(sp) # 8-byte Folded Reload ; CHECK-NEXT: ld s0, 2016(sp) # 8-byte Folded Reload ; CHECK-NEXT: addi sp, sp, 2032 ; CHECK-NEXT: ret ret void } ... --- name: spillslot alignment: 4 tracksRegLiveness: false frameInfo: isFrameAddressTaken: false isReturnAddressTaken: false hasStackMap: false hasPatchPoint: false stackSize: 0 offsetAdjustment: 0 maxAlignment: 128 adjustsStack: false hasCalls: false stackProtector: '' maxCallFrameSize: 4294967295 cvBytesOfCalleeSavedRegisters: 0 hasOpaqueSPAdjustment: false hasVAStart: false hasMustTailInVarArgFunc: false hasTailCall: false localFrameSize: 0 savePoint: '' restorePoint: '' fixedStack: [] stack: - { id: 0, name: '', type: default, offset: 0, size: 2048, alignment: 128, 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: 24576, alignment: 8, stack-id: scalable-vector, callee-saved-register: '', callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } body: | bb.0: liveins: $x1, $x5, $x6, $x7, $x10, $x11, $x12, $x13, $x14, $x15, $x16, $x17, $x28, $x29, $x30, $x31, $v25 PseudoVSPILL_M1 killed renamable $v25, %stack.1 :: (store unknown-size into %stack.1, align 8) ; This is here just to make all the eligible registers live at this point. ; This way when we replace the frame index %stack.1 with its actual address ; we have to allocate two virtual registers to compute it. ; A later run of the the register scavenger won't find available registers ; either so it will have to spill two to the emergency spill slots ; required for this RVV computation. PseudoCALL target-flags(riscv-plt) @spillslot, csr_ilp32_lp64, implicit-def $x1, implicit-def $x2, implicit $x1, implicit $x5, implicit $x6, implicit $x7, implicit $x10, implicit $x11, implicit $x12, implicit $x13, implicit $x14, implicit $x15, implicit $x16, implicit $x17, implicit $x28, implicit $x29, implicit $x30, implicit $x31 PseudoRET ...