Rafael Espindola 0a70f9b3b9 Look through variables when computing relocations. ... Given bar = foo + 4 .long bar MC would eat the 4. GNU as includes it in the relocation. The rule seems to be that a variable that defines a symbol is used in the relocation and one that does not define a symbol is evaluated and the result included in the relocation. Fixing this unfortunately required some other changes: * Since the variable is now evaluated, it would prevent the ELF writer from noticing the weakref marker the elf streamer uses. This patch then replaces that with a VariantKind in MCSymbolRefExpr. * Using VariantKind then requires us to look past other VariantKind to see .weakref bar,foo call bar@PLT doing this also fixes zed = foo +2 call zed@PLT so that is a good thing. * Looking past VariantKind means that the relocation selection has to use the fixup instead of the target. This is a reboot of the previous fixes for MC. I will watch the sanitizer buildbot and wait for a build before adding back the previous fixes. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204294 91177308-0d34-0410-b5e6-96231b3b80d8		2014-03-20 02:12:01 +00:00
..
CMakeLists.txt	[CMake] Let add_public_tablegen_target responsible to provide dependency to CommonTableGen.	2013-11-28 17:04:04 +00:00
LLVMBuild.txt	[SystemZ] Add back end	2013-05-06 16:15:19 +00:00
Makefile	[SystemZ] Add back end	2013-05-06 16:15:19 +00:00
SystemZMCAsmBackend.cpp	[SystemZ] Remove "virtual" from override methods	2014-03-06 12:03:36 +00:00
SystemZMCAsmInfo.cpp	Refactor the setting of PrivateGlobalPrefix.	2013-12-02 23:39:26 +00:00
SystemZMCAsmInfo.h	[SystemZ] Remove "virtual" from override methods	2014-03-06 12:03:36 +00:00
SystemZMCCodeEmitter.cpp	[SystemZ] Remove "virtual" from override methods	2014-03-06 12:03:36 +00:00
SystemZMCFixups.h	[SystemZ] Update namespace formatting to match current guidelines	2014-03-06 10:38:30 +00:00
SystemZMCObjectWriter.cpp	Look through variables when computing relocations.	2014-03-20 02:12:01 +00:00
SystemZMCTargetDesc.cpp	Pass a MCSubtargetInfo down to the TargetStreamer creation.	2014-01-26 06:38:58 +00:00
SystemZMCTargetDesc.h	[SystemZ] Update namespace formatting to match current guidelines	2014-03-06 10:38:30 +00:00