2014-04-30 16:25:02 +00:00
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// RUN: llvm-mc -filetype=obj -triple i686-pc-linux-gnu %s -o - | llvm-readobj -symbols | FileCheck %s
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.text
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.globl foobar
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.align 16, 0x90
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.type foobar,@function
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foobar:
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pushl %ebp
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movl %esp, %ebp
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subl $8, %esp
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calll foo
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calll bar
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addl $8, %esp
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popl %ebp
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retl
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.Ltmp3:
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.size foobar, .Ltmp3-foobar
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Produce a single string table in a ELF .o
Normally an ELF .o has two string tables, one for symbols, one for section
names.
With the scheme of naming sections like ".text.foo" where foo is a symbol,
there is a big potential saving in using a single one.
Building llvm+clang+lld with master and with this patch the results were:
master: 193,267,008 bytes
patch: 186,107,952 bytes
master non unique section names: 183,260,192 bytes
patch non unique section names: 183,118,632 bytes
So using non usique saves 10,006,816 bytes, and the patch saves 7,159,056 while
still using distinct names for the sections.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@238073 91177308-0d34-0410-b5e6-96231b3b80d8
2015-05-22 23:58:30 +00:00
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// CHECK: Name: bar (19)
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// CHECK: Name: foo (23)
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2015-05-28 21:59:34 +00:00
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// CHECK: Name: foobar (16)
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