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TheRock/compiler/amd-llvm/llvm/test/CodeGen/PowerPC/aix-emit-tracebacktable-redzone-boundary.mir
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Flatten subprojects into a single base monorepo
2026-09-02 16:34:47 -07:00

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## Test when the frame size is equal to or large than redzone boundary size(288).
## The behaviour of IsBackChainStored bit of traceback table.
# RUN: llc -mtriple powerpc64-ibm-aix-xcoff -o -\
# RUN: %s | FileCheck %s
---
name: test
tracksRegLiveness: true
stack:
- { id: 0, size: 288, alignment: 16 }
body: |
bb.0:
BLR8 implicit $lr8, implicit $rm
---
name: overredzone
tracksRegLiveness: true
stack:
- { id: 0, size: 296, alignment: 16 }
body: |
bb.0:
BLR8 implicit $lr8, implicit $rm
; CHECK: .vbyte 4, 0x00000000 # Traceback table begin
; CHECK-NEXT: .byte 0x00 # Version = 0
; CHECK-NEXT: .byte 0x09 # Language = CPlusPlus
; CHECK-NEXT: .byte 0x20 # -IsGlobalLinkage, -IsOutOfLineEpilogOrPrologue
; CHECK-NEXT: # +HasTraceBackTableOffset, -IsInternalProcedure
; CHECK-NEXT: # -HasControlledStorage, -IsTOCless
; CHECK-NEXT: # -IsFloatingPointPresent
; CHECK-NEXT: # -IsFloatingPointOperationLogOrAbortEnabled
; CHECK-NEXT: .byte 0x40 # -IsInterruptHandler, +IsFunctionNamePresent, -IsAllocaUsed
; CHECK-NEXT: # OnConditionDirective = 0, -IsCRSaved, -IsLRSaved
; CHECK-NEXT: .byte 0x00 # -IsBackChainStored, -IsFixup, NumOfFPRsSaved = 0
; CHECK-NEXT: .byte 0x00 # -HasExtensionTable, -HasVectorInfo, NumOfGPRsSaved = 0
; CHECK-NEXT: .byte 0x00 # NumberOfFixedParms = 0
; CHECK-NEXT: .byte 0x01 # NumberOfFPParms = 0, +HasParmsOnStack
; CHECK-NEXT: .vbyte 4, L..test0-.test # Function size
; CHECK-NEXT: .vbyte 2, 0x0004 # Function name len = 4
; CHECK-NEXT: .byte "test" # Function Name
; CHECK: .vbyte 4, 0x00000000 # Traceback table begin
; CHECK-NEXT: .byte 0x00 # Version = 0
; CHECK-NEXT: .byte 0x09 # Language = CPlusPlus
; CHECK-NEXT: .byte 0x20 # -IsGlobalLinkage, -IsOutOfLineEpilogOrPrologue
; CHECK-NEXT: # +HasTraceBackTableOffset, -IsInternalProcedure
; CHECK-NEXT: # -HasControlledStorage, -IsTOCless
; CHECK-NEXT: # -IsFloatingPointPresent
; CHECK-NEXT: # -IsFloatingPointOperationLogOrAbortEnabled
; CHECK-NEXT: .byte 0x40 # -IsInterruptHandler, +IsFunctionNamePresent, -IsAllocaUsed
; CHECK-NEXT: # OnConditionDirective = 0, -IsCRSaved, -IsLRSaved
; CHECK-NEXT: .byte 0x80 # +IsBackChainStored, -IsFixup, NumOfFPRsSaved = 0
; CHECK-NEXT: .byte 0x00 # -HasExtensionTable, -HasVectorInfo, NumOfGPRsSaved = 0
; CHECK-NEXT: .byte 0x00 # NumberOfFixedParms = 0
; CHECK-NEXT: .byte 0x01 # NumberOfFPParms = 0, +HasParmsOnStack
; CHECK-NEXT: .vbyte 4, L..overredzone0-.overredzone # Function size
; CHECK-NEXT: .vbyte 2, 0x000b # Function name len = 11
; CHECK-NEXT: .byte "overredzone" # Function Name
...