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1# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 52# RUN: llc --run-pass=aarch64-ldst-opt %s -o - | FileCheck %s3--- |4 target triple = "aarch64-unknown-linux"5 6 define i32 @f(i32 %x) {7 entry:8 ret i32 09 }10 11 declare i32 @g(i32)12 13...14---15name: f16alignment: 417tracksRegLiveness: true18liveins:19 - { reg: '$w0', virtual-reg: '' }20frameInfo:21 stackSize: 3222 maxAlignment: 823 adjustsStack: true24 hasCalls: true25 isCalleeSavedInfoValid: true26fixedStack: []27stack:28 - { id: 0, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8,29 stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true,30 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }31 - { id: 1, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8,32 stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true,33 debug-info-variable: '', debug-info-expression: '', debug-info-location: '' }34entry_values: []35callSites: []36debugValueSubstitutions: []37constants: []38machineFunctionInfo:39 hasRedZone: false40body: |41 bb.0.entry:42 liveins: $w0, $lr43 ;44 ; Test a store instruction is merged backwards into an SP update.45 ;46 ; CHECK-LABEL: name: f47 ; CHECK: liveins: $w0, $lr48 ; CHECK-NEXT: {{ $}}49 ; CHECK-NEXT: early-clobber $sp = frame-setup STRXpre killed $fp, $sp, -32 :: (store (s64) into %stack.1)50 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 3251 ; CHECK-NEXT: frame-setup STRXui killed $lr, $sp, 2 :: (store (s64) into %stack.0)52 ; CHECK-NEXT: $fp = frame-setup ADDXri $sp, 0, 053 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa $w29, 3254 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $w30, -855 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $w29, -1656 ; CHECK-NEXT: renamable $w0 = nsw SUBWri killed renamable $w0, 1, 057 ; CHECK-NEXT: BL @g, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $w0, implicit-def $sp, implicit-def $w058 ; CHECK-NEXT: $w0 = nsw ADDWri killed renamable $w0, 1, 059 ; CHECK-NEXT: $fp = frame-destroy LDRXui $sp, 0 :: (load (s64) from %stack.1)60 ; CHECK-NEXT: $lr = frame-destroy LDRXui $sp, 2 :: (load (s64) from %stack.0)61 ; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 32, 062 ; CHECK-NEXT: RET undef $lr, implicit $w063 $sp = frame-setup SUBXri $sp, 32, 064 frame-setup CFI_INSTRUCTION def_cfa_offset 3265 frame-setup STRXui killed $fp, $sp, 0 :: (store (s64) into %stack.1)66 frame-setup STRXui killed $lr, $sp, 2 :: (store (s64) into %stack.0)67 $fp = frame-setup ADDXri $sp, 0, 068 frame-setup CFI_INSTRUCTION def_cfa $w29, 3269 frame-setup CFI_INSTRUCTION offset $w30, -870 frame-setup CFI_INSTRUCTION offset $w29, -1671 renamable $w0 = nsw SUBWri killed renamable $w0, 1, 072 BL @g, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $w0, implicit-def $sp, implicit-def $w073 $w0 = nsw ADDWri killed renamable $w0, 1, 074 $fp = frame-destroy LDRXui $sp, 0 :: (load (s64) from %stack.1)75 $lr = frame-destroy LDRXui $sp, 2 :: (load (s64) from %stack.0)76 $sp = frame-destroy ADDXri $sp, 32, 077 RET undef $lr, implicit $w078 79...80