; 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-unknown-linux-gnu -fdata-sections | FileCheck %s -check-prefix=LINUX-SECTIONS
; int G1;
; const int G2 __attribute__((weak)) = 42;
-@G2 = weak_odr constant i32 42
+@G2 = weak_odr unnamed_addr constant i32 42
; TODO: linux drops this into .rodata, we drop it into ".gnu.linkonce.r.G2"
; int * const G3 = &G1;
-@G3 = constant i32* @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
+
; _Complex long long const G4 = 34;
-@G4 = constant {i64,i64} { i64 34, i64 0 }
+@G4 = unnamed_addr constant {i64,i64} { i64 34, i64 0 }
-; DARWIN: .section __TEXT,__const
+; DARWIN: .section __TEXT,__literal16,16byte_literals
; DARWIN: _G4:
; DARWIN: .long 34
@"foo bar" = linkonce global i32 42
; LINUX: .type foo_20_bar,@object
-; LINUX:.section .gnu.linkonce.d.foo_20_bar,"aw",@progbits
+; LINUX: .section .data.foo_20_bar,"aGw",@progbits,foo_20_bar,comdat
; LINUX: .weak foo_20_bar
; LINUX: foo_20_bar:
; DARWIN: "_foo bar":
; PR4650
-@G6 = weak_odr constant [1 x i8] c"\01"
+@G6 = weak_odr unnamed_addr constant [1 x i8] c"\01"
; LINUX: .type G6,@object
-; LINUX: .section .gnu.linkonce.r.G6,"a",@progbits
+; LINUX: .section .rodata.G6,"aG",@progbits,G6,comdat
; LINUX: .weak G6
; LINUX: G6:
; LINUX: .byte 1
; DARWIN: .byte 1
-@G7 = constant [10 x i8] c"abcdefghi\00"
+@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: .section .rodata.str1.1,"aMS",@progbits,1
; LINUX: .globl G7
; LINUX: G7:
; LINUX: .asciz "abcdefghi"
+; LINUX-SECTIONS: .section .rodata.G7,"aMS",@progbits,1
+; LINUX-SECTIONS: .globl G7
+
-@G8 = constant [4 x i16] [ i16 1, i16 2, i16 3, i16 0 ]
+@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: .section .rodata.str2.2,"aMS",@progbits,2
; LINUX: .globl G8
; LINUX:G8:
-@G9 = constant [4 x i32] [ i32 1, i32 2, i32 3, i32 0 ]
+@G9 = unnamed_addr constant [4 x i32] [ i32 1, i32 2, i32 3, i32 0 ]
; DARWIN: .globl _G9
; DARWIN: _G9:
-; LINUX: .section .rodata.str4.16,"aMS",@progbits,4
+; LINUX: .section .rodata.str4.4,"aMS",@progbits,4
; LINUX: .globl G9
; LINUX:G9
; 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