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llvm-project/llvm/test/MC/COFF/linkonce-invalid.s

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MC: Implement COFF .linkonce directive llvm-svn: 185753
2013-07-06 20:13:10 +08:00
// 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
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
2014-06-07 03:26:12 +08:00
// CHECK: error: cannot make section associative with .linkonce
MC: Implement COFF .linkonce directive llvm-svn: 185753
2013-07-06 20:13:10 +08:00
.linkonce associative
// CHECK: error: section 'multi' is already linkonce
.section multi
.linkonce discard
.linkonce same_size