# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py UTC_ARGS: --version 4 # RUN: llc -run-pass=prologepilog %s -o - | FileCheck %s # Regression test for a crash when the probing instruction # to replace is last in the block. --- | source_filename = "tt.ll" target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" target triple = "aarch64-linux" declare i1 @g(ptr) define void @f(ptr %out) #0 { entry: %p = alloca i32, i32 50000, align 4 br label %loop loop: ; preds = %loop, %entry %c = call i1 @g(ptr %p) br i1 %c, label %loop, label %exit exit: ; preds = %loop ret void } attributes #0 = { uwtable "frame-pointer"="none" "probe-stack"="inline-asm" "target-features"="+sve" } ... --- name: f alignment: 4 exposesReturnsTwice: false legalized: false regBankSelected: false selected: false failedISel: false tracksRegLiveness: true hasWinCFI: false callsEHReturn: false callsUnwindInit: false hasEHCatchret: false hasEHScopes: false hasEHFunclets: false isOutlined: false debugInstrRef: false failsVerification: false tracksDebugUserValues: true registers: [] liveins: [] frameInfo: isFrameAddressTaken: false isReturnAddressTaken: false hasStackMap: false hasPatchPoint: false stackSize: 0 offsetAdjustment: 0 maxAlignment: 4 adjustsStack: true hasCalls: true stackProtector: '' functionContext: '' maxCallFrameSize: 0 cvBytesOfCalleeSavedRegisters: 0 hasOpaqueSPAdjustment: false hasVAStart: false hasMustTailInVarArgFunc: false hasTailCall: false localFrameSize: 200000 savePoint: '' restorePoint: '' fixedStack: [] stack: - { id: 0, name: p, type: default, offset: 0, size: 200000, alignment: 4, stack-id: default, callee-saved-register: '', callee-saved-restored: true, local-offset: -200000, debug-info-variable: '', debug-info-expression: '', debug-info-location: '' } entry_values: [] callSites: [] debugValueSubstitutions: [] constants: [] machineFunctionInfo: {} body: | ; CHECK-LABEL: name: f ; CHECK: bb.0.entry: ; CHECK-NEXT: successors: %bb.3(0x80000000) ; CHECK-NEXT: liveins: $lr, $fp ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: early-clobber $sp = frame-setup STPXpre killed $fp, killed $lr, $sp, -2 :: (store (s64) into %stack.2), (store (s64) into %stack.1) ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 16 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $w30, -8 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION offset $w29, -16 ; CHECK-NEXT: $x9 = frame-setup SUBXri $sp, 48, 12 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa $w9, 196624 ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: bb.3.entry: ; CHECK-NEXT: successors: %bb.4(0x40000000), %bb.3(0x40000000) ; CHECK-NEXT: liveins: $x9 ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: $sp = frame-setup SUBXri $sp, 1, 12 ; CHECK-NEXT: frame-setup STRXui $xzr, $sp, 0 ; CHECK-NEXT: $xzr = frame-setup SUBSXrx64 $sp, $x9, 24, implicit-def $nzcv ; CHECK-NEXT: frame-setup Bcc 1, %bb.3, implicit $nzcv ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: bb.4.entry: ; CHECK-NEXT: successors: %bb.1(0x80000000) ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_register $wsp ; CHECK-NEXT: $sp = frame-setup SUBXri $sp, 3392, 0 ; CHECK-NEXT: frame-setup CFI_INSTRUCTION def_cfa_offset 200016 ; CHECK-NEXT: frame-setup STRXui $xzr, $sp, 0 ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: bb.1.loop: ; CHECK-NEXT: successors: %bb.1(0x7c000000), %bb.2(0x04000000) ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: $x0 = ADDXri $sp, 0, 0 ; CHECK-NEXT: BL @g, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit-def $sp, implicit-def $w0 ; CHECK-NEXT: TBNZW killed renamable $w0, 0, %bb.1 ; CHECK-NEXT: B %bb.2 ; CHECK-NEXT: {{ $}} ; CHECK-NEXT: bb.2.exit: ; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 48, 12 ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 3408 ; CHECK-NEXT: $sp = frame-destroy ADDXri $sp, 3392, 0 ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 16 ; CHECK-NEXT: early-clobber $sp, $fp, $lr = frame-destroy LDPXpost $sp, 2 :: (load (s64) from %stack.2), (load (s64) from %stack.1) ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION def_cfa_offset 0 ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w30 ; CHECK-NEXT: frame-destroy CFI_INSTRUCTION restore $w29 ; CHECK-NEXT: RET_ReallyLR bb.0.entry: successors: %bb.1(0x80000000) bb.1.loop: successors: %bb.1(0x7c000000), %bb.2(0x04000000) ADJCALLSTACKDOWN 0, 0, implicit-def dead $sp, implicit $sp $x0 = ADDXri %stack.0.p, 0, 0 BL @g, csr_aarch64_aapcs, implicit-def dead $lr, implicit $sp, implicit $x0, implicit-def $sp, implicit-def $w0 ADJCALLSTACKUP 0, 0, implicit-def dead $sp, implicit $sp TBNZW killed renamable $w0, 0, %bb.1 B %bb.2 bb.2.exit: RET_ReallyLR ...