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clang-p2996/llvm/test/CodeGen/PowerPC/aix-xcoff-toc.ll
jasonliu f5415f7c5a [XCOFF][AIX] Use 'L..' instead of 'L' for PrivateGlobalPrefix 
Without this change, names start with 'L' will get created as
temporary symbol in MCContext::createSymbol.

Some other potential prefix considered:
.L, does not work for AIX, as a function start with L will end
up with .L as prefix for its function entry point.

..L could work, but it does not play well with the convention
on AIX that anything start with '.' are considered as entry point.

L. could work, but not sure if it's safe enough, as it's possible
to have suffixes like .something append to a plain L, giving L.something
which is not necessarily a temporary.

That's why we picked L.. for now.

Differential Revision: https://reviews.llvm.org/D80831
2020-06-03 17:18:11 +00:00

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; This file tests TOC entry generation and undefined symbol generation.
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mtriple powerpc-ibm-aix-xcoff < %s | FileCheck --check-prefixes CHECK,CHECK32 %s
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mtriple powerpc64-ibm-aix-xcoff < %s 2>&1 | FileCheck --check-prefixes CHECK,CHECK64 %s
; RUN: llc -verify-machineinstrs -mcpu=pwr4 -mtriple powerpc-ibm-aix-xcoff -filetype=obj -o %t.o < %s
; RUN: llvm-readobj --syms %t.o | FileCheck --check-prefix=SYM %s
; RUN: not --crash llc -verify-machineinstrs -mcpu=pwr4 -mtriple powerpc64-ibm-aix-xcoff -filetype=obj -o %t.o 2>&1 \
; RUN: < %s | FileCheck --check-prefix=XCOFF64 %s
; XCOFF64: LLVM ERROR: 64-bit XCOFF object files are not supported yet.
@a = external global i32, align 4
@b = external global i64, align 8
@c = external global i16, align 2
@globa = common global i32 0, align 4
@ptr = internal global void (...)* null, align 4
declare void @foo()
define void @bar() {
%1 = alloca i8*, align 8
%2 = alloca i8*, align 8
store i32 0, i32* @a, align 4
store i64 0, i64* @b, align 8
store i16 0, i16* @c, align 2
store i32 0, i32* @globa, align 4
store void (...)* bitcast (void ()* @bar to void (...)*), void (...)** @ptr, align 4
store i8* bitcast (void ()* @foo to i8*), i8** %1, align 8
store i8* bitcast (void ()* @foobar to i8*), i8** %2, align 8
ret void
}
; We initialize a csect when we first reference an external global, so make sure we don't run into problems when we see it again.
define void @bar2() {
store i32 0, i32* @a, align 4
store i64 0, i64* @b, align 8
store i16 0, i16* @c, align 2
ret void
}
define void @foobar() {
ret void
}
; Test tc entry assembly generation.
; CHECK-NOT: .comm a
; CHECK-NOT: .lcomm a
; CHECK-NOT: .comm b
; CHECK-NOT: .lcomm b
; CHECK-NOT: .comm c
; CHECK-NOT: .lcomm c
; CHECK: .comm globa[RW],4,2
; CHECK32: .lcomm ptr,4,ptr[BS],2
; CHECK64: .lcomm ptr,8,ptr[BS],2
; CHECK: .toc
; CHECK-NEXT: L..C0:
; CHECK-NEXT: .tc a[TC],a[UA]
; CHECK-NEXT: L..C1:
; CHECK-NEXT: .tc b[TC],b[UA]
; CHECK-NEXT: L..C2:
; CHECK-NEXT: .tc c[TC],c[UA]
; CHECK-NEXT: L..C3:
; CHECK-NEXT: .tc globa[TC],globa[RW]
; CHECK-NEXT: L..C4:
; CHECK-NEXT: .tc ptr[TC],ptr[BS]
; CHECK-NEXT: L..C5:
; CHECK-NEXT: .tc bar[TC],bar[DS]
; CHECK-NEXT: L..C6:
; CHECK-NEXT: .tc foo[TC],foo[DS]
; CHECK-NEXT: L..C7:
; CHECK-NEXT: .tc foobar[TC],foobar[DS]
; Test undefined symbol generation.
; SYM: File: {{.*}}aix-xcoff-toc.ll.tmp.o
; SYM: Symbol {{[{][[:space:]] *}}Index: [[#UNDEF_INDX:]]{{[[:space:]] *}}Name: a
; SYM-NEXT: Value (RelocatableAddress): 0x0
; SYM-NEXT: Section: N_UNDEF
; SYM-NEXT: Type: 0x0
; SYM-NEXT: StorageClass: C_EXT (0x2)
; SYM-NEXT: NumberOfAuxEntries: 1
; SYM-NEXT: CSECT Auxiliary Entry {
; SYM-NEXT: Index: [[#UNDEF_INDX+1]]
; SYM-NEXT: SectionLen: 0
; SYM-NEXT: ParameterHashIndex: 0x0
; SYM-NEXT: TypeChkSectNum: 0x0
; SYM-NEXT: SymbolAlignmentLog2: 0
; SYM-NEXT: SymbolType: XTY_ER (0x0)
; SYM-NEXT: StorageMappingClass: XMC_UA (0x4)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#UNDEF_INDX+2]]
; SYM-NEXT: Name: b
; SYM-NEXT: Value (RelocatableAddress): 0x0
; SYM-NEXT: Section: N_UNDEF
; SYM-NEXT: Type: 0x0
; SYM-NEXT: StorageClass: C_EXT (0x2)
; SYM-NEXT: NumberOfAuxEntries: 1
; SYM-NEXT: CSECT Auxiliary Entry {
; SYM-NEXT: Index: [[#UNDEF_INDX+3]]
; SYM-NEXT: SectionLen: 0
; SYM-NEXT: ParameterHashIndex: 0x0
; SYM-NEXT: TypeChkSectNum: 0x0
; SYM-NEXT: SymbolAlignmentLog2: 0
; SYM-NEXT: SymbolType: XTY_ER (0x0)
; SYM-NEXT: StorageMappingClass: XMC_UA (0x4)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#UNDEF_INDX+4]]
; SYM-NEXT: Name: c
; SYM-NEXT: Value (RelocatableAddress): 0x0
; SYM-NEXT: Section: N_UNDEF
; SYM-NEXT: Type: 0x0
; SYM-NEXT: StorageClass: C_EXT (0x2)
; SYM-NEXT: NumberOfAuxEntries: 1
; SYM-NEXT: CSECT Auxiliary Entry {
; SYM-NEXT: Index: [[#UNDEF_INDX+5]]
; SYM-NEXT: SectionLen: 0
; SYM-NEXT: ParameterHashIndex: 0x0
; SYM-NEXT: TypeChkSectNum: 0x0
; SYM-NEXT: SymbolAlignmentLog2: 0
; SYM-NEXT: SymbolType: XTY_ER (0x0)
; SYM-NEXT: StorageMappingClass: XMC_UA (0x4)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#UNDEF_INDX+6]]
; SYM-NEXT: Name: foo
; SYM-NEXT: Value (RelocatableAddress): 0x0
; SYM-NEXT: Section: N_UNDEF
; SYM-NEXT: Type: 0x0
; SYM-NEXT: StorageClass: C_EXT (0x2)
; SYM-NEXT: NumberOfAuxEntries: 1
; SYM-NEXT: CSECT Auxiliary Entry {
; SYM-NEXT: Index: [[#UNDEF_INDX+7]]
; SYM-NEXT: SectionLen: 0
; SYM-NEXT: ParameterHashIndex: 0x0
; SYM-NEXT: TypeChkSectNum: 0x0
; SYM-NEXT: SymbolAlignmentLog2: 0
; SYM-NEXT: SymbolType: XTY_ER (0x0)
; SYM-NEXT: StorageMappingClass: XMC_DS (0xA)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; Test TOC entry symbol generation.
; SYM: Symbol {{[{][[:space:]] *}}Index: [[#TOC_INDX:]]{{[[:space:]] *}}Name: TOC
; SYM-NEXT: Value (RelocatableAddress): 0xA8
; 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: [[#TOC_INDX+1]]
; SYM-NEXT: SectionLen: 0
; SYM-NEXT: ParameterHashIndex: 0x0
; SYM-NEXT: TypeChkSectNum: 0x0
; SYM-NEXT: SymbolAlignmentLog2: 2
; SYM-NEXT: SymbolType: XTY_SD (0x1)
; SYM-NEXT: StorageMappingClass: XMC_TC0 (0xF)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#TOC_INDX+2]]
; SYM-NEXT: Name: a
; SYM-NEXT: Value (RelocatableAddress): 0xA8
; 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: [[#TOC_INDX+3]]
; 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_TC (0x3)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#TOC_INDX+4]]
; SYM-NEXT: Name: b
; SYM-NEXT: Value (RelocatableAddress): 0xAC
; 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: [[#TOC_INDX+5]]
; 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_TC (0x3)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#TOC_INDX+6]]
; SYM-NEXT: Name: c
; SYM-NEXT: Value (RelocatableAddress): 0xB0
; 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: [[#TOC_INDX+7]]
; 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_TC (0x3)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#TOC_INDX+8]]
; SYM-NEXT: Name: globa
; SYM-NEXT: Value (RelocatableAddress): 0xB4
; 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: [[#TOC_INDX+9]]
; 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_TC (0x3)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#TOC_INDX+10]]
; SYM-NEXT: Name: ptr
; SYM-NEXT: Value (RelocatableAddress): 0xB8
; 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: [[#TOC_INDX+11]]
; 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_TC (0x3)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#TOC_INDX+12]]
; SYM-NEXT: Name: bar
; SYM-NEXT: Value (RelocatableAddress): 0xBC
; 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: [[#TOC_INDX+13]]
; 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_TC (0x3)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#TOC_INDX+14]]
; SYM-NEXT: Name: foo
; SYM-NEXT: Value (RelocatableAddress): 0xC0
; 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: [[#TOC_INDX+15]]
; 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_TC (0x3)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
; SYM-NEXT: Symbol {
; SYM-NEXT: Index: [[#TOC_INDX+16]]
; SYM-NEXT: Name: foobar
; SYM-NEXT: Value (RelocatableAddress): 0xC4
; 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: [[#TOC_INDX+17]]
; 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_TC (0x3)
; SYM-NEXT: StabInfoIndex: 0x0
; SYM-NEXT: StabSectNum: 0x0
; SYM-NEXT: }
; SYM-NEXT: }
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