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19 Commits

Author SHA1 Message Date
Rafael Espindola 4929301af4 Error if we see an alias to a declaration. 
In ELF and COFF an alias is just another offset in a section. There is no way
to represent an alias to something in another file.

In MachO, the spec has the N_INDR type which should allow for exactly that, but
is not currently implemented. Given that it is specified but not implemented,
we error in codegen to avoid miscompiling but don't reject aliases to
declarations in the verifier to leave the option open of implementing it.

In the past we have used alias to declarations as a way of implementing
weakref, which is why it exists in some old tests which this patch updates.

llvm-svn: 194705
 2013-11-14 13:58:06 +00:00
Rafael Espindola 78527050c2 Add support for aliases with linkonce_odr. 
This will be used to extend constructor aliases in clang.

llvm-svn: 192066
 2013-10-06 15:10:43 +00:00
Rafael Espindola aff49df0fe Convert test to FileCheck. 
llvm-svn: 192025
 2013-10-05 02:58:36 +00:00
Rafael Espindola a01cdb0e37 Add 129518 back with a fix for when we are producing eh just because of debug info. 
Change ELF systems to use CFI for producing the EH tables. This reduces the
size of the clang binary in Debug builds from 690MB to 679MB.

llvm-svn: 129571
 2011-04-15 15:11:06 +00:00
NAKAMURA Takumi b5e3e9dd27 Revert r129518, "Change ELF systems to use CFI for producing the EH tables. This reduces the" 
It broke several builds.

llvm-svn: 129557
 2011-04-15 03:35:57 +00:00
Rafael Espindola aa2a7cd828 Change ELF systems to use CFI for producing the EH tables. This reduces the 
size of the clang binary in Debug builds from 690MB to 679MB.

llvm-svn: 129518
 2011-04-14 15:18:53 +00:00
Rafael Espindola dee3062373 Revert previous two patches while I try to find out how to make both 
linux and darwin assemblers happy :-(

llvm-svn: 121004
 2010-12-06 15:35:15 +00:00
Rafael Espindola 884d58a798 Update test for the extra =. 
llvm-svn: 121001
 2010-12-06 15:05:36 +00:00
Chris Lattner 9889c1eb9e move .set generation out of DwarfPrinter into AsmPrinter and 
MCize it.

llvm-svn: 98010
 2010-03-08 23:58:37 +00:00
Chris Lattner 27a9732450 simplify EmitSectionOffset to always use .set if it is 
available, the only thing this affects is that we produce
.set in one case we didn't before, which shouldn't harm
anything.  Make EmitSectionOffset call EmitDifference
instead of duplicating it.

llvm-svn: 98005
 2010-03-08 23:23:25 +00:00
Chris Lattner b657c4cdc3 emit jump table an alias ".set" directives through MCStreamer as 
assignments.

.set x, a-b

is the same as:

x = a-b

llvm-svn: 94596
 2010-01-26 21:53:08 +00:00
Chris Lattner 3dd38a8112 eliminate MCAsmInfo::NeedsSet: we now just use .set on any platform 
that has it.

llvm-svn: 94581
 2010-01-26 20:20:43 +00:00
Dan Gohman a080159a7c Convert more tests to avoid llvm-as. 
llvm-svn: 81545
 2009-09-11 18:36:27 +00:00
Dan Gohman 0d4bbf2c4a Remove obsolete -f flags. 
llvm-svn: 79992
 2009-08-25 15:38:29 +00:00
Evan Cheng 5e5a63cf8f CodeGen still defaults to non-verbose asm, but llc now overrides it and default to verbose. 
llvm-svn: 67668
 2009-03-25 01:47:28 +00:00
Anton Korobeynikov 6f51973734 Update testcase for recent aliases change 
llvm-svn: 48250
 2008-03-11 21:42:20 +00:00
Dan Gohman ada7205b76 Convert tests using "grep -c ... | grep ..." to use the count script. 
llvm-svn: 41100
 2007-08-15 13:49:33 +00:00
Anton Korobeynikov 8a00ba1c69 Updated aliases test 
llvm-svn: 36558
 2007-04-29 10:34:42 +00:00
Anton Korobeynikov a97b694c82 Implement aliases. This fixes PR1017 and it's dependent bugs. CFE part 
will follow.

llvm-svn: 36435
 2007-04-25 14:27:10 +00:00