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Author SHA1 Message Date
Peter Collingbourne faf300f069 Reland r340552, "Driver: Enable address-significance tables by default when targeting COFF." which was reverted in r340579. 
The underlying problem that caused the revert was fixed in r340648.

Differential Revision: https://reviews.llvm.org/D51049

llvm-svn: 340649
 2018-08-24 20:38:15 +00:00
Peter Collingbourne 577cfb0b5e Revert r340552, "Driver: Enable address-significance tables by default when targeting COFF." 
Received multiple reports of breakage due to undefined symbols
suspected to be caused by this change.

llvm-svn: 340579
 2018-08-23 21:34:57 +00:00
Peter Collingbourne b801a7d4fa Driver: Enable address-significance tables by default when targeting COFF. 
Differential Revision: https://reviews.llvm.org/D51049

llvm-svn: 340552
 2018-08-23 17:43:29 +00:00
Peter Collingbourne 14b468bab6 Re-land r337333, "Teach Clang to emit address-significance tables.", 
which was reverted in r337336.

The problem that required a revert was fixed in r337338.

Also added a missing "REQUIRES: x86-registered-target" to one of
the tests.

Original commit message:
> Teach Clang to emit address-significance tables.
>
> By default, we emit an address-significance table on all ELF
> targets when the integrated assembler is enabled. The emission of an
> address-significance table can be controlled with the -faddrsig and
> -fno-addrsig flags.
>
> Differential Revision: https://reviews.llvm.org/D48155

llvm-svn: 337339
 2018-07-18 00:27:07 +00:00
Peter Collingbourne 35c6996b68 Revert r337333, "Teach Clang to emit address-significance tables." 
Causing multiple failures on sanitizer bots due to TLS symbol errors,
e.g.

/usr/bin/ld: __msan_origin_tls: TLS definition in /home/buildbots/ppc64be-clang-test/clang-ppc64be/stage1/lib/clang/7.0.0/lib/linux/libclang_rt.msan-powerpc64.a(msan.cc.o) section .tbss.__msan_origin_tls mismatches non-TLS reference in /tmp/lit_tmp_0a71tA/mallinfo-3ca75e.o

llvm-svn: 337336
 2018-07-17 23:56:30 +00:00
Peter Collingbourne 27242c0402 Teach Clang to emit address-significance tables. 
By default, we emit an address-significance table on all ELF
targets when the integrated assembler is enabled. The emission of an
address-significance table can be controlled with the -faddrsig and
-fno-addrsig flags.

Differential Revision: https://reviews.llvm.org/D48155

llvm-svn: 337333
 2018-07-17 23:17:16 +00:00