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llvm-mirror/test/MC/ELF/common.s
Hans Wennborg 1f76d4c2b7 ELFObjectWriter: deduplicate suffices in strtab
We already do this for shstrtab, so might as well do it for strtab. This
extracts the string table building code into a separate class. The idea
is to use it for other object formats too.

I mostly wanted to do this for the general principle, but it does save a
little bit on object file size. I tried this on a clang bootstrap and
saved 0.54% on the sum of object file sizes (1.14 MB out of 212 MB for
a release build).

Differential Revision: http://reviews.llvm.org/D3533

llvm-svn: 207670
2014-04-30 16:25:02 +00:00

100 lines
2.3 KiB
ArmAsm

// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -t | FileCheck %s
.text
// Test that this produces a regular local symbol.
.type common1,@object
.local common1
.comm common1,1,1
// CHECK: Symbol {
// CHECK: Name: common1
// CHECK-NEXT: Value: 0x0
// CHECK-NEXT: Size: 1
// CHECK-NEXT: Binding: Local
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section:
// CHECK-NEXT: }
// Same as common1, but with directives in a different order.
.local common2
.type common2,@object
.comm common2,1,1
// CHECK: Symbol {
// CHECK: Name: common2
// CHECK-NEXT: Value: 0x1
// CHECK-NEXT: Size: 1
// CHECK-NEXT: Binding: Local
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section:
// CHECK-NEXT: }
.local common6
.comm common6,8,16
// CHECK: Symbol {
// CHECK: Name: common6
// CHECK-NEXT: Value: 0x10
// CHECK-NEXT: Size: 8
// CHECK-NEXT: Binding: Local
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: .bss (0x4)
// CHECK-NEXT: }
// Test that without an explicit .local we produce a global.
.type common3,@object
.comm common3,4,4
// CHECK: Symbol {
// CHECK: Name: common3
// CHECK-NEXT: Value: 0x4
// CHECK-NEXT: Size: 4
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: Common (0xFFF2)
// CHECK-NEXT: }
// Test that without an explicit .local we produce a global, even if the first
// occurrence is not in a directive.
.globl foo
.type foo,@function
foo:
movsbl common4+3(%rip), %eax
.type common4,@object
.comm common4,40,16
// CHECK: Symbol {
// CHECK: Name: common4
// CHECK-NEXT: Value: 0x10
// CHECK-NEXT: Size: 40
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: Common (0xFFF2)
// CHECK-NEXT: }
.comm common5,4,4
// CHECK: Symbol {
// CHECK: Name: common5
// CHECK-NEXT: Value: 0x4
// CHECK-NEXT: Size: 4
// CHECK-NEXT: Binding: Global
// CHECK-NEXT: Type: Object
// CHECK-NEXT: Other: 0
// CHECK-NEXT: Section: Common (0xFFF2)
// CHECK-NEXT: }