| # RUN: llc -mtriple=aarch64-apple-darwin -run-pass=aarch64-ldst-opt -verify-machineinstrs -o - %s | FileCheck %s |
| |
| --- | |
| target datalayout = "e-m:o-i64:64-i128:128-n32:64-S128" |
| target triple = "arm64e-apple-ios13.0" |
| |
| %struct.widget = type { i64, i64, i32, i32, i64, i64, i64, i64, i64, i32, i32, i32, i16, i32, %struct.snork*, %struct.zot, %struct.zot, %struct.zot, %struct.zot, %struct.zot, i64, i64, i64, i32, i64, i32, i32, i32, i8*, %struct.baz, %struct.baz, i64, i64, %struct.snork*, %struct.zot, i32, i32, i32, i32, i32, i32, i32, [32 x i8], i64, i64, %struct.wombat, i32, i64, i64, i64, i64 } |
| %struct.baz = type { [4 x i32] } |
| %struct.snork = type { i32, i32, [1 x %struct.spam] } |
| %struct.spam = type { %struct.baz, i32, i32 } |
| %struct.zot = type { i64, i64 } |
| %struct.wombat = type { [2 x i32] } |
| %struct.wombat.0 = type { [200 x i32] } |
| |
| @__stack_chk_guard = external global i8* |
| |
| ; Function Attrs: noredzone ssp |
| define hidden void @with_noredzone_80bytes() #0 { |
| bb: |
| %StackGuardSlot = alloca i8*, align 8 |
| %0 = call i8* @llvm.stackguard() |
| call void @llvm.stackprotector(i8* %0, i8** %StackGuardSlot) |
| %tmp = alloca %struct.widget, align 16 |
| %tmp1 = alloca %struct.wombat.0*, align 8 |
| %tmp2 = alloca %struct.wombat.0*, align 8 |
| %tmp3 = alloca %struct.wombat.0*, align 8 |
| %tmp4 = alloca %struct.wombat.0*, align 8 |
| store %struct.wombat.0* null, %struct.wombat.0** %tmp3, align 8 |
| store %struct.wombat.0* null, %struct.wombat.0** %tmp4, align 8 |
| ret void |
| } |
| |
| define hidden void @with_redzone_480bytes() #2 { |
| bb: |
| %StackGuardSlot = alloca i8*, align 8 |
| %0 = call i8* @llvm.stackguard() |
| call void @llvm.stackprotector(i8* %0, i8** %StackGuardSlot) |
| %tmp = alloca %struct.widget, align 16 |
| %tmp1 = alloca %struct.wombat.0*, align 8 |
| %tmp2 = alloca %struct.wombat.0*, align 8 |
| %tmp3 = alloca %struct.wombat.0*, align 8 |
| %tmp4 = alloca %struct.wombat.0*, align 8 |
| store %struct.wombat.0* null, %struct.wombat.0** %tmp3, align 8 |
| store %struct.wombat.0* null, %struct.wombat.0** %tmp4, align 8 |
| ret void |
| } |
| |
| define hidden void @with_noredzone_no_mem_between() #0 { |
| bb: |
| %StackGuardSlot = alloca i8*, align 8 |
| %0 = call i8* @llvm.stackguard() |
| call void @llvm.stackprotector(i8* %0, i8** %StackGuardSlot) |
| %tmp = alloca %struct.widget, align 16 |
| %tmp1 = alloca %struct.wombat.0*, align 8 |
| %tmp2 = alloca %struct.wombat.0*, align 8 |
| %tmp3 = alloca %struct.wombat.0*, align 8 |
| %tmp4 = alloca %struct.wombat.0*, align 8 |
| store %struct.wombat.0* null, %struct.wombat.0** %tmp3, align 8 |
| store %struct.wombat.0* null, %struct.wombat.0** %tmp4, align 8 |
| ret void |
| } |
| |
| ; Function Attrs: nofree nosync nounwind willreturn |
| declare i8* @llvm.stackguard() #1 |
| |
| ; Function Attrs: nofree nosync nounwind willreturn |
| declare void @llvm.stackprotector(i8*, i8**) #1 |
| |
| attributes #0 = { noredzone ssp "frame-pointer"="non-leaf" } |
| attributes #1 = { nofree nosync nounwind willreturn } |
| attributes #2 = { ssp "frame-pointer"="non-leaf" } |
| ... |
| # Check that we don't try to combine the SUB with the STP using pre-index addressing |
| # if the function does not have redzone enabled. |
| # CHECK-LABEL: name: with_noredzone_80bytes |
| # CHECK-NOT: STPXpre $xzr, $xzr |
| --- |
| name: with_noredzone_80bytes |
| alignment: 4 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| failedISel: false |
| tracksRegLiveness: true |
| hasWinCFI: false |
| registers: [] |
| liveins: [] |
| frameInfo: |
| isFrameAddressTaken: false |
| isReturnAddressTaken: false |
| hasStackMap: false |
| hasPatchPoint: false |
| stackSize: 512 |
| offsetAdjustment: 0 |
| maxAlignment: 16 |
| adjustsStack: true |
| hasCalls: true |
| stackProtector: '%stack.0.StackGuardSlot' |
| maxCallFrameSize: 0 |
| cvBytesOfCalleeSavedRegisters: 0 |
| hasOpaqueSPAdjustment: false |
| hasVAStart: false |
| hasMustTailInVarArgFunc: false |
| localFrameSize: 480 |
| savePoint: '' |
| restorePoint: '' |
| fixedStack: [] |
| stack: |
| - { id: 0, name: StackGuardSlot, type: default, offset: -40, size: 8, |
| alignment: 8, stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -8, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 1, name: tmp, type: default, offset: -480, size: 440, alignment: 16, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -448, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 2, name: tmp1, type: default, offset: -488, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -456, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 3, name: tmp2, type: default, offset: -496, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -464, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 4, name: tmp3, type: default, offset: -504, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -472, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 5, name: tmp4, type: default, offset: -512, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -480, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 6, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 7, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 8, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$x27', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 9, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$x28', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| callSites: [] |
| debugValueSubstitutions: [] |
| constants: [] |
| machineFunctionInfo: |
| hasRedZone: false |
| body: | |
| bb.0.bb: |
| successors: %bb.1(0x7ffff800), %bb.2(0x00000800) |
| liveins: $x27, $x28, $lr |
| early-clobber $sp = frame-setup STPXpre killed $x28, killed $x27, $sp, -4 :: (store (s64) into %stack.9), (store (s64) into %stack.8) |
| frame-setup STPXi killed $fp, killed $lr, $sp, 2 :: (store (s64) into %stack.7), (store (s64) into %stack.6) |
| $fp = frame-setup ADDXri $sp, 16, 0 |
| $sp = frame-setup SUBXri $sp, 80, 0 |
| frame-setup CFI_INSTRUCTION def_cfa $w29, 16 |
| frame-setup CFI_INSTRUCTION offset $w30, -8 |
| frame-setup CFI_INSTRUCTION offset $w29, -16 |
| frame-setup CFI_INSTRUCTION offset $w27, -24 |
| frame-setup CFI_INSTRUCTION offset $w28, -32 |
| $x8 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard |
| $x8 = LDRXui killed $x8, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard |
| $x8 = LDRXui killed $x8, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard) |
| STURXi killed renamable $x8, $fp, -24 :: (volatile store (s64) into %stack.0.StackGuardSlot) |
| STRXui $xzr, $sp, 1 :: (store (s64) into %ir.tmp3) |
| STRXui $xzr, $sp, 0 :: (store (s64) into %ir.tmp4) |
| renamable $x8 = LDURXi $fp, -24 :: (volatile load (s64) from %stack.0.StackGuardSlot) |
| $x9 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard |
| $x9 = LDRXui killed $x9, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard |
| $x9 = LDRXui killed $x9, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard) |
| $xzr = SUBSXrs killed renamable $x9, killed renamable $x8, 0, implicit-def $nzcv, implicit-def $nzcv |
| Bcc 1, %bb.2, implicit $nzcv |
| |
| bb.1.bb: |
| $sp = frame-destroy ADDXri $sp, 480, 0 |
| $fp, $lr = frame-destroy LDPXi $sp, 2 :: (load (s64) from %stack.7), (load (s64) from %stack.6) |
| early-clobber $sp, $x28, $x27 = frame-destroy LDPXpost $sp, 4 :: (load (s64) from %stack.9), (load (s64) from %stack.8) |
| RET undef $lr |
| |
| bb.2.bb: |
| BL &__stack_chk_fail, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp |
| |
| ... |
| # Check we don't try to fold a 480 byte offset, even if we have a 128 byte redzone. |
| # CHECK-LABEL: name: with_redzone_480bytes |
| # CHECK-NOT: STPXpre $xzr, $xzr |
| --- |
| name: with_redzone_480bytes |
| alignment: 4 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| failedISel: false |
| tracksRegLiveness: true |
| hasWinCFI: false |
| registers: [] |
| liveins: [] |
| frameInfo: |
| isFrameAddressTaken: false |
| isReturnAddressTaken: false |
| hasStackMap: false |
| hasPatchPoint: false |
| stackSize: 512 |
| offsetAdjustment: 0 |
| maxAlignment: 16 |
| adjustsStack: true |
| hasCalls: true |
| stackProtector: '%stack.0.StackGuardSlot' |
| maxCallFrameSize: 0 |
| cvBytesOfCalleeSavedRegisters: 0 |
| hasOpaqueSPAdjustment: false |
| hasVAStart: false |
| hasMustTailInVarArgFunc: false |
| localFrameSize: 480 |
| savePoint: '' |
| restorePoint: '' |
| fixedStack: [] |
| stack: |
| - { id: 0, name: StackGuardSlot, type: default, offset: -40, size: 8, |
| alignment: 8, stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -8, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 1, name: tmp, type: default, offset: -480, size: 440, alignment: 16, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -448, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 2, name: tmp1, type: default, offset: -488, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -456, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 3, name: tmp2, type: default, offset: -496, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -464, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 4, name: tmp3, type: default, offset: -504, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -472, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 5, name: tmp4, type: default, offset: -512, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -480, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 6, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 7, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 8, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$x27', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 9, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$x28', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| callSites: [] |
| debugValueSubstitutions: [] |
| constants: [] |
| body: | |
| bb.0.bb: |
| successors: %bb.1(0x7ffff800), %bb.2(0x00000800) |
| liveins: $x27, $x28, $lr |
| early-clobber $sp = frame-setup STPXpre killed $x28, killed $x27, $sp, -4 :: (store (s64) into %stack.9), (store (s64) into %stack.8) |
| frame-setup STPXi killed $fp, killed $lr, $sp, 2 :: (store (s64) into %stack.7), (store (s64) into %stack.6) |
| $fp = frame-setup ADDXri $sp, 16, 0 |
| $sp = frame-setup SUBXri $sp, 480, 0 |
| frame-setup CFI_INSTRUCTION def_cfa $w29, 16 |
| frame-setup CFI_INSTRUCTION offset $w30, -8 |
| frame-setup CFI_INSTRUCTION offset $w29, -16 |
| frame-setup CFI_INSTRUCTION offset $w27, -24 |
| frame-setup CFI_INSTRUCTION offset $w28, -32 |
| $x8 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard |
| $x8 = LDRXui killed $x8, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard |
| $x8 = LDRXui killed $x8, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard) |
| STURXi killed renamable $x8, $fp, -24 :: (volatile store (s64) into %stack.0.StackGuardSlot) |
| STRXui $xzr, $sp, 1 :: (store (s64) into %ir.tmp3) |
| STRXui $xzr, $sp, 0 :: (store (s64) into %ir.tmp4) |
| renamable $x8 = LDURXi $fp, -24 :: (volatile load (s64) from %stack.0.StackGuardSlot) |
| $x9 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard |
| $x9 = LDRXui killed $x9, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard |
| $x9 = LDRXui killed $x9, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard) |
| $xzr = SUBSXrs killed renamable $x9, killed renamable $x8, 0, implicit-def $nzcv, implicit-def $nzcv |
| Bcc 1, %bb.2, implicit $nzcv |
| |
| bb.1.bb: |
| $sp = frame-destroy ADDXri $sp, 480, 0 |
| $fp, $lr = frame-destroy LDPXi $sp, 2 :: (load (s64) from %stack.7), (load (s64) from %stack.6) |
| early-clobber $sp, $x28, $x27 = frame-destroy LDPXpost $sp, 4 :: (load (s64) from %stack.9), (load (s64) from %stack.8) |
| RET undef $lr |
| |
| bb.2.bb: |
| BL &__stack_chk_fail, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp |
| |
| ... |
| # Check we still do the opt if there are no mem ops between. |
| # CHECK-LABEL: name: with_noredzone_no_mem_between |
| # CHECK: STPXpre $xzr, $xzr |
| --- |
| name: with_noredzone_no_mem_between |
| alignment: 4 |
| exposesReturnsTwice: false |
| legalized: false |
| regBankSelected: false |
| selected: false |
| failedISel: false |
| tracksRegLiveness: true |
| hasWinCFI: false |
| registers: [] |
| liveins: [] |
| frameInfo: |
| isFrameAddressTaken: false |
| isReturnAddressTaken: false |
| hasStackMap: false |
| hasPatchPoint: false |
| stackSize: 512 |
| offsetAdjustment: 0 |
| maxAlignment: 16 |
| adjustsStack: true |
| hasCalls: true |
| stackProtector: '%stack.0.StackGuardSlot' |
| maxCallFrameSize: 0 |
| cvBytesOfCalleeSavedRegisters: 0 |
| hasOpaqueSPAdjustment: false |
| hasVAStart: false |
| hasMustTailInVarArgFunc: false |
| localFrameSize: 480 |
| savePoint: '' |
| restorePoint: '' |
| fixedStack: [] |
| stack: |
| - { id: 0, name: StackGuardSlot, type: default, offset: -40, size: 8, |
| alignment: 8, stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -8, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 1, name: tmp, type: default, offset: -480, size: 440, alignment: 16, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -448, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 2, name: tmp1, type: default, offset: -488, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -456, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 3, name: tmp2, type: default, offset: -496, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -464, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 4, name: tmp3, type: default, offset: -504, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -472, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 5, name: tmp4, type: default, offset: -512, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, |
| local-offset: -480, debug-info-variable: '', debug-info-expression: '', |
| debug-info-location: '' } |
| - { id: 6, name: '', type: spill-slot, offset: -8, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$lr', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 7, name: '', type: spill-slot, offset: -16, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$fp', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 8, name: '', type: spill-slot, offset: -24, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$x27', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| - { id: 9, name: '', type: spill-slot, offset: -32, size: 8, alignment: 8, |
| stack-id: default, callee-saved-register: '$x28', callee-saved-restored: true, |
| debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } |
| callSites: [] |
| debugValueSubstitutions: [] |
| constants: [] |
| machineFunctionInfo: |
| hasRedZone: false |
| body: | |
| bb.0.bb: |
| successors: %bb.1(0x7ffff800), %bb.2(0x00000800) |
| liveins: $x27, $x28, $lr |
| early-clobber $sp = frame-setup STPXpre killed $x28, killed $x27, $sp, -4 :: (store (s64) into %stack.9), (store (s64) into %stack.8) |
| frame-setup STPXi killed $fp, killed $lr, $sp, 2 :: (store (s64) into %stack.7), (store (s64) into %stack.6) |
| $fp = frame-setup ADDXri $sp, 16, 0 |
| $sp = frame-setup SUBXri $sp, 480, 0 |
| frame-setup CFI_INSTRUCTION def_cfa $w29, 16 |
| frame-setup CFI_INSTRUCTION offset $w30, -8 |
| frame-setup CFI_INSTRUCTION offset $w29, -16 |
| frame-setup CFI_INSTRUCTION offset $w27, -24 |
| frame-setup CFI_INSTRUCTION offset $w28, -32 |
| $x8 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard |
| STRXui $xzr, $sp, 1 :: (store (s64) into %ir.tmp3) |
| STRXui $xzr, $sp, 0 :: (store (s64) into %ir.tmp4) |
| renamable $x8 = LDURXi $fp, -24 :: (volatile load (s64) from %stack.0.StackGuardSlot) |
| $x9 = ADRP target-flags(aarch64-page, aarch64-got) @__stack_chk_guard |
| $x9 = LDRXui killed $x9, target-flags(aarch64-pageoff, aarch64-got, aarch64-nc) @__stack_chk_guard |
| $x9 = LDRXui killed $x9, 0 :: (dereferenceable invariant load (s64) from @__stack_chk_guard) |
| $xzr = SUBSXrs killed renamable $x9, killed renamable $x8, 0, implicit-def $nzcv, implicit-def $nzcv |
| Bcc 1, %bb.2, implicit $nzcv |
| |
| bb.1.bb: |
| $sp = frame-destroy ADDXri $sp, 480, 0 |
| $fp, $lr = frame-destroy LDPXi $sp, 2 :: (load (s64) from %stack.7), (load (s64) from %stack.6) |
| early-clobber $sp, $x28, $x27 = frame-destroy LDPXpost $sp, 4 :: (load (s64) from %stack.9), (load (s64) from %stack.8) |
| RET undef $lr |
| |
| bb.2.bb: |
| BL &__stack_chk_fail, csr_darwin_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit-def $sp |
| |
| ... |