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llvm-mirror/test/MC/COFF/linkonce-invalid.s
Rafael Espindola 34f7950ebf Fix a few issues with comdat handling on COFF.
* Section association cannot use just the section name as many
sections can have the same name. With this patch, the comdat symbol in
an assoc section is interpreted to mean a symbol in the associated
section and the mapping is discovered from it.

* Comdat symbols were not being set correctly. Instead we were getting
whatever was output first for that section.

A consequence is that associative sections now must use .section to
set the association. Using .linkonce would not work since it is not
possible to change a sections comdat symbol (it is used to decide if
we should create a new section or reuse an existing one).

This includes r210298, which was reverted because it was asserting
on an associated section having the same comdat as the associated
section.

llvm-svn: 210367
2014-06-06 19:26:12 +00:00

29 lines
585 B
ArmAsm

// Test invalid use of the .linkonce directive.
//
// RUN: not llvm-mc -triple i386-pc-win32 -filetype=obj %s 2>&1 | FileCheck %s
.section non_comdat
.section comdat
.linkonce discard
.section assoc
.linkonce associative comdat
.section invalid
// CHECK: error: unrecognized COMDAT type 'unknown'
.linkonce unknown
// CHECK: error: unexpected token in directive
.linkonce discard foo
// CHECK: error: cannot make section associative with .linkonce
.linkonce associative
// CHECK: error: section 'multi' is already linkonce
.section multi
.linkonce discard
.linkonce same_size