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llvm-6502/test/CodeGen/X86/global-sections.ll
David Majnemer 7605cdd6e4 COFF: Let globals with private linkage reside in their own section 
COFF COMDATs (for selection kinds other than 'select any') require at
least one non-section symbol in the symbol table.
Satisfy this by morally enhancing the linkage from private to internal.

Differential Revision: http://reviews.llvm.org/D8394

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232570 91177308-0d34-0410-b5e6-96231b3b80d8
2015-03-17 23:54:51 +00:00

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; RUN: llc < %s -mtriple=i386-unknown-linux-gnu | FileCheck %s -check-prefix=LINUX
; RUN: llc < %s -mtriple=i386-apple-darwin9.7 | FileCheck %s -check-prefix=DARWIN
; RUN: llc < %s -mtriple=i386-apple-darwin10 -relocation-model=static | FileCheck %s -check-prefix=DARWIN-STATIC
; RUN: llc < %s -mtriple=x86_64-apple-darwin10 | FileCheck %s -check-prefix=DARWIN64
; RUN: llc < %s -mtriple=i386-unknown-linux-gnu -data-sections -function-sections | FileCheck %s -check-prefix=LINUX-SECTIONS
; RUN: llc < %s -mtriple=i386-unknown-linux-gnu -function-sections | FileCheck %s -check-prefix=LINUX-FUNC-SECTIONS
; RUN: llc < %s -mtriple=x86_64-pc-linux -data-sections -function-sections -relocation-model=pic | FileCheck %s -check-prefix=LINUX-SECTIONS-PIC
; RUN: llc < %s -mtriple=i686-pc-win32 -data-sections -function-sections | FileCheck %s -check-prefix=WIN32-SECTIONS
; RUN: llc < %s -mtriple=i686-pc-win32 -function-sections | FileCheck %s -check-prefix=WIN32-FUNC-SECTIONS
define void @F1() {
ret void
}
; WIN32-SECTIONS: .section .text,"xr",one_only,_F1
; WIN32-SECTIONS: .globl _F1
define void @F2(i32 %y) {
bb0:
switch i32 %y, label %bb5 [
i32 1, label %bb1
i32 2, label %bb2
i32 3, label %bb3
i32 4, label %bb4
]
bb1:
ret void
bb2:
ret void
bb3:
ret void
bb4:
ret void
bb5:
ret void
}
; LINUX: .size F2,
; LINUX-NEX: .cfi_endproc
; LINUX-NEX: .section .rodata,"a",@progbits
; LINUX-SECTIONS: .section .text.F2,"ax",@progbits
; LINUX-SECTIONS: .size F2,
; LINUX-SECTIONS-NEXT: .cfi_endproc
; LINUX-SECTIONS-NEXT: .section .rodata.F2,"a",@progbits
; LINUX-FUNC-SECTIONS: .section .text.F2,"ax",@progbits
; LINUX-FUNC-SECTIONS: .size F2,
; LINUX-FUNC-SECTIONS-NEXT: .cfi_endproc
; LINUX-FUNC-SECTIONS-NEXT: .section .rodata.F2,"a",@progbits
; WIN32-FUNC-SECTIONS: .section .text,"xr",one_only,_F2
; WIN32-FUNC-SECTIONS-NOT: .section
; WIN32-FUNC-SECTIONS: .section .rdata,"dr",associative,_F2
; LINUX-SECTIONS-PIC: .section .text.F2,"ax",@progbits
; LINUX-SECTIONS-PIC: .size F2,
; LINUX-SECTIONS-PIC-NEXT: .cfi_endproc
; LINUX-SECTIONS-PIC-NEXT: .section .rodata.F2,"a",@progbits
declare void @G()
define void @F3(i32 %y) {
bb0:
invoke void @G()
to label %bb2 unwind label %bb1
bb1:
landingpad { i8*, i32 } personality i8* bitcast (void ()* @G to i8*)
catch i8* null
br label %bb2
bb2:
switch i32 %y, label %bb7 [
i32 1, label %bb3
i32 2, label %bb4
i32 3, label %bb5
i32 4, label %bb6
]
bb3:
ret void
bb4:
ret void
bb5:
ret void
bb6:
ret void
bb7:
ret void
}
; DARWIN64: _F3:
; DARWIN64: Lfunc_end
; DARWIN64-NEXT: .cfi_endproc
; DARWIN64-NOT: .section
; DARWIN64: LJTI{{.*}}:
; DARWIN64-NEXT: .long
; DARWIN64-NEXT: .long
; DARWIN64-NEXT: .long
; DARWIN64-NEXT: .long
; DARWIN64-NEXT: .section __TEXT,__gcc_except_tab
; int G1;
@G1 = common global i32 0
; LINUX: .type G1,@object
; LINUX: .comm G1,4,4
; DARWIN: .comm _G1,4,2
; const int G2 __attribute__((weak)) = 42;
@G2 = weak_odr unnamed_addr constant i32 42
; TODO: linux drops this into .rodata, we drop it into ".gnu.linkonce.r.G2"
; DARWIN: .section __TEXT,__const_coal,coalesced
; DARWIN: _G2:
; DARWIN: .long 42
; int * const G3 = &G1;
@G3 = unnamed_addr constant i32* @G1
; DARWIN: .section __DATA,__const
; DARWIN: .globl _G3
; DARWIN: _G3:
; DARWIN: .long _G1
; LINUX: .section .rodata,"a",@progbits
; LINUX: .globl G3
; LINUX-SECTIONS: .section .rodata.G3,"a",@progbits
; LINUX-SECTIONS: .globl G3
; WIN32-SECTIONS: .section .rdata,"dr",one_only,_G3
; WIN32-SECTIONS: .globl _G3
; _Complex long long const G4 = 34;
@G4 = private unnamed_addr constant {i64,i64} { i64 34, i64 0 }
; DARWIN: .section __TEXT,__literal16,16byte_literals
; DARWIN: L_G4:
; DARWIN: .long 34
; DARWIN-STATIC: .section __TEXT,__literal16,16byte_literals
; DARWIN-STATIC: L_G4:
; DARWIN-STATIC: .long 34
; DARWIN64: .section __TEXT,__literal16,16byte_literals
; DARWIN64: L_G4:
; DARWIN64: .quad 34
; int G5 = 47;
@G5 = global i32 47
; LINUX: .data
; LINUX: .globl G5
; LINUX: G5:
; LINUX: .long 47
; DARWIN: .section __DATA,__data
; DARWIN: .globl _G5
; DARWIN: _G5:
; DARWIN: .long 47
; PR4584
@"foo bar" = linkonce global i32 42
; LINUX: .type "foo bar",@object
; LINUX: .weak "foo bar"
; LINUX: "foo bar":
; DARWIN: .section __DATA,__datacoal_nt,coalesced
; DARWIN: .globl "_foo bar"
; DARWIN: .weak_definition "_foo bar"
; DARWIN: "_foo bar":
; PR4650
@G6 = weak_odr unnamed_addr constant [1 x i8] c"\01"
; LINUX: .type G6,@object
; LINUX: .weak G6
; LINUX: G6:
; LINUX: .byte 1
; LINUX: .size G6, 1
; DARWIN: .section __TEXT,__const_coal,coalesced
; DARWIN: .globl _G6
; DARWIN: .weak_definition _G6
; DARWIN:_G6:
; DARWIN: .byte 1
@G7 = unnamed_addr constant [10 x i8] c"abcdefghi\00"
; DARWIN: __TEXT,__cstring,cstring_literals
; DARWIN: .globl _G7
; DARWIN: _G7:
; DARWIN: .asciz "abcdefghi"
; LINUX: .section .rodata.str1.1,"aMS",@progbits,1
; LINUX: .globl G7
; LINUX: G7:
; LINUX: .asciz "abcdefghi"
; LINUX-SECTIONS: .section .rodata.str1.1,"aMS",@progbits,1
; LINUX-SECTIONS: .globl G7
; WIN32-SECTIONS: .section .rdata,"dr",one_only,_G7
; WIN32-SECTIONS: .globl _G7
@G8 = unnamed_addr constant [4 x i16] [ i16 1, i16 2, i16 3, i16 0 ]
; DARWIN: .section __TEXT,__const
; DARWIN: .globl _G8
; DARWIN: _G8:
; LINUX: .section .rodata.str2.2,"aMS",@progbits,2
; LINUX: .globl G8
; LINUX:G8:
@G9 = unnamed_addr constant [4 x i32] [ i32 1, i32 2, i32 3, i32 0 ]
; DARWIN: .globl _G9
; DARWIN: _G9:
; LINUX: .section .rodata.str4.4,"aMS",@progbits,4
; LINUX: .globl G9
; LINUX:G9
@G10 = weak global [100 x i32] zeroinitializer, align 32 ; <[100 x i32]*> [#uses=0]
; DARWIN: .section __DATA,__datacoal_nt,coalesced
; DARWIN: .globl _G10
; DARWIN: .weak_definition _G10
; DARWIN: .align 5
; DARWIN: _G10:
; DARWIN: .space 400
; LINUX: .bss
; LINUX: .weak G10
; LINUX: .align 32
; LINUX: G10:
; LINUX: .zero 400
;; Zero sized objects should round up to 1 byte in zerofill directives.
; rdar://7886017
@G11 = global [0 x i32] zeroinitializer
@G12 = global {} zeroinitializer
@G13 = global { [0 x {}] } zeroinitializer
; DARWIN: .globl _G11
; DARWIN: .zerofill __DATA,__common,_G11,1,2
; DARWIN: .globl _G12
; DARWIN: .zerofill __DATA,__common,_G12,1,3
; DARWIN: .globl _G13
; DARWIN: .zerofill __DATA,__common,_G13,1,3
@G14 = private unnamed_addr constant [4 x i8] c"foo\00", align 1
; LINUX-SECTIONS: .type .LG14,@object # @G14
; LINUX-SECTIONS: .section .rodata.str1.1,"aMS",@progbits,1
; LINUX-SECTIONS: .LG14:
; LINUX-SECTIONS: .asciz "foo"
; LINUX-SECTIONS: .size .LG14, 4
; WIN32-SECTIONS: .section .rdata,"dr",one_only,_G14
; WIN32-SECTIONS: _G14:
; WIN32-SECTIONS: .asciz "foo"
; cannot be merged on MachO, but can on other formats.
@G15 = unnamed_addr constant i64 0
; LINUX: .section .rodata.cst8,"aM",@progbits,8
; LINUX: G15:
; DARWIN: .section __TEXT,__const
; DARWIN: _G15:
; DARWIN-STATIC: .section __TEXT,__const
; DARWIN-STATIC: _G15:
; DARWIN64: .section __TEXT,__const
; DARWIN64: _G15:
; LINUX-SECTIONS: .section .rodata.cst8,"aM",@progbits,8
; LINUX-SECTIONS: G15:
; WIN32-SECTIONS: .section .rdata,"dr",one_only,_G15
; WIN32-SECTIONS: _G15:
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