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llvm-mirror/test/CodeGen/PowerPC/aix-xcoff-lower-comm.ll
David Tenty 9cf21dc31e [AIX] Update data directives for AIX assembly
Summary:
The standard data emission directives (e.g. .short, .long) in the AIX assembler
have the unintended consequence of aligning their output to the natural byte
boundary. This cause problems because we aren't expecting behavior from the
Data*bitsDirectives, so the final alignment of data isn't correct in some cases
on AIX.

This patch updated the Data*bitsDirectives to use .vbyte pseudo-ops instead to emit the
data, since we will emit the .align directives as needed. We update the existing
testcases and add a test for emission of struct data.

Reviewers: hubert.reinterpretcast, Xiangling_L, jasonliu

Reviewed By: hubert.reinterpretcast, jasonliu

Subscribers: wuzish, nemanjai, hiraditya, kbarton, arphaman, llvm-commits

Tags: #llvm

Differential Revision: https://reviews.llvm.org/D80934
2020-06-03 10:55:59 -04:00

97 lines
3.5 KiB
LLVM

; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mtriple powerpc-ibm-aix-xcoff < %s | FileCheck --check-prefixes=CHECK,ASM32 %s
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mtriple powerpc64-ibm-aix-xcoff < %s | FileCheck --check-prefixes=CHECK,ASM64 %s
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mtriple powerpc-ibm-aix-xcoff -filetype=obj -o %t.o < %s
; RUN: llvm-readobj -r --expand-relocs -t %t.o | FileCheck --check-prefixes=RELOC,SYM %s
; RUN: not --crash llc -verify-machineinstrs -mcpu=pwr4 -mtriple powerpc64-ibm-aix-xcoff -filetype=obj < %s 2>&1 | \
; RUN: FileCheck --check-prefix=XCOFF64 %s
; XCOFF64: LLVM ERROR: 64-bit XCOFF object files are not supported yet.
@common = common global i32 0, align 4
@pointer = global i32* @common, align 4
; CHECK: .comm common[RW],4,2
; ASM32-NEXT: .csect .data[RW],2
; ASM64-NEXT: .csect .data[RW],3
; CHECK-NEXT: .globl pointer
; ASM32-NEXT: .align 2
; ASM64-NEXT: .align 3
; CHECK-NEXT:pointer:
; ASM32-NEXT: .vbyte 4, common[RW]
; ASM64-NEXT: .vbyte 8, common[RW]
; RELOC: Relocations [
; RELOC-NEXT: Section (index: {{[0-9]+}}) .data {
; RELOC-NEXT: Relocation {
; RELOC-NEXT: Virtual Address: 0x0
; RELOC-NEXT: Symbol: common ([[#COM_INDX:]])
; RELOC-NEXT: IsSigned: No
; RELOC-NEXT: FixupBitValue: 0
; RELOC-NEXT: Length: 32
; RELOC-NEXT: Type: R_POS (0x0)
; RELOC-NEXT: }
; RELOC-NEXT: }
; RELOC-NEXT: ]
; SYM: Symbol {{[{][[:space:]] *}}Index: [[#INDX:]]{{[[:space:]] *}}Name: .data
; SYM-NEXT: Value (RelocatableAddress): 0x0
; SYM-NEXT: Section: .data
; SYM-NEXT: Type: 0x0
; SYM-NEXT: StorageClass: C_HIDEXT (0x6B)
; SYM-NEXT: NumberOfAuxEntries: 1
; SYM-NEXT: CSECT Auxiliary Entry {
; SYM-NEXT: Index: [[#INDX+1]]
; SYM-NEXT: SectionLen: 4
; SYM-NEXT: ParameterHashIndex: 0x0
; SYM-NEXT: TypeChkSectNum: 0x0
; SYM-NEXT: SymbolAlignmentLog2: 2
; SYM-NEXT: SymbolType: XTY_SD (0x1)
; SYM-NEXT: StorageMappingClass: XMC_RW (0x5)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#INDX+2]]
; SYM-NEXT: Name: pointer
; SYM-NEXT: Value (RelocatableAddress): 0x0
; SYM-NEXT: Section: .data
; SYM-NEXT: Type: 0x0
; SYM-NEXT: StorageClass: C_EXT (0x2)
; SYM-NEXT: NumberOfAuxEntries: 1
; SYM-NEXT: CSECT Auxiliary Entry {
; SYM-NEXT: Index: [[#INDX+3]]
; SYM-NEXT: ContainingCsectSymbolIndex: [[#INDX]]
; SYM-NEXT: ParameterHashIndex: 0x0
; SYM-NEXT: TypeChkSectNum: 0x0
; SYM-NEXT: SymbolAlignmentLog2: 0
; SYM-NEXT: SymbolType: XTY_LD (0x2)
; SYM-NEXT: StorageMappingClass: XMC_RW (0x5)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#COM_INDX]]
; SYM-NEXT: Name: common
; SYM-NEXT: Value (RelocatableAddress): 0x4
; SYM-NEXT: Section: .bss
; SYM-NEXT: Type: 0x0
; SYM-NEXT: StorageClass: C_EXT (0x2)
; SYM-NEXT: NumberOfAuxEntries: 1
; SYM-NEXT: CSECT Auxiliary Entry {
; SYM-NEXT: Index: [[#COM_INDX+1]]
; SYM-NEXT: SectionLen: 4
; SYM-NEXT: ParameterHashIndex: 0x0
; SYM-NEXT: TypeChkSectNum: 0x0
; SYM-NEXT: SymbolAlignmentLog2: 2
; SYM-NEXT: SymbolType: XTY_CM (0x3)
; SYM-NEXT: StorageMappingClass: XMC_RW (0x5)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }