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llvm/test/CodeGen/AArch64/wineh-frame-predecrement.mir
- This file was added.
| # RUN: llc -o - %s -mtriple=aarch64-windows -start-before=prologepilog \ | |||||
| # RUN: -stop-after=prologepilog | FileCheck %s | |||||
| # Check that the callee-saved registers are saved starting with a STP | |||||
| # with predecrement, followed by a separate stack adjustment later, | |||||
| # if the optsize attribute is set. | |||||
| # CHECK: early-clobber $sp = frame-setup STPXpre killed $x19, killed $x20, $sp, -2 | |||||
| # CHECK-NEXT: frame-setup SEH_SaveRegP_X 19, 20, -16 | |||||
| # CHECK-NEXT: $sp = frame-setup SUBXri $sp, 16, 0 | |||||
| # CHECK-NEXT: frame-setup SEH_StackAlloc 16 | |||||
| # CHECK-NEXT: frame-setup SEH_PrologEnd | |||||
| --- | | |||||
| define dso_local i32 @func(i32 %a) optsize { ret i32 %a } | |||||
| ... | |||||
| --- | |||||
| name: func | |||||
| 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: 0 | |||||
| offsetAdjustment: 0 | |||||
| maxAlignment: 4 | |||||
| adjustsStack: false | |||||
| hasCalls: false | |||||
| stackProtector: '' | |||||
| maxCallFrameSize: 0 | |||||
| cvBytesOfCalleeSavedRegisters: 0 | |||||
| hasOpaqueSPAdjustment: false | |||||
| hasVAStart: false | |||||
| hasMustTailInVarArgFunc: false | |||||
| localFrameSize: 4 | |||||
| savePoint: '' | |||||
| restorePoint: '' | |||||
| fixedStack: [] | |||||
| stack: | |||||
| - { id: 0, name: '', type: default, offset: 0, size: 4, alignment: 4, | |||||
| stack-id: default, callee-saved-register: '', callee-saved-restored: true, | |||||
| local-offset: -4, debug-info-variable: '', debug-info-expression: '', | |||||
| debug-info-location: '' } | |||||
| callSites: [] | |||||
| constants: [] | |||||
| machineFunctionInfo: {} | |||||
| body: | | |||||
| bb.0: | |||||
| liveins: $x0, $x19, $x20 | |||||
| renamable $x8 = ADDXri %stack.0, 0, 0 | |||||
| $x19 = ADDXrr $x0, $x8 | |||||
| $x20 = ADDXrr $x19, $x0 | |||||
| $x0 = ADDXrr $x0, killed $x20 | |||||
| RET_ReallyLR | |||||
| ... | |||||