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4 Commits

Author SHA1 Message Date
Jim Grosbach 4045507fea MC tweak symbol difference resolution for non-local symbols. 
When the non-local symbol in the expression is in the same fragment
as the second symbol, the assembler can still evaluate the expression
without needing a relocation.

For example, on ARM:
_foo:
	ldr lr, (_foo - 4)

rdar://10348687

llvm-svn: 148341
 2012-01-17 22:14:39 +00:00
Jim Grosbach 354f48f201 Tidy up. 
llvm-svn: 148339
 2012-01-17 22:03:42 +00:00
Jim Grosbach d6ae4ba002 Darwin assembler improved relocs when w/o subsections_via_symbols. 
When the file isn't being built with subsections-via-symbols, symbol
differences involving non-local symbols can be resolved more aggressively.
Needed for gas compatibility.

llvm-svn: 146054
 2011-12-07 19:46:59 +00:00
Daniel Dunbar 3dde457b94 MC/Mach-O: For PCrel relocations, we need to compensate for the PCrel adjustment when determining if we need a scattered relocation. 
llvm-svn: 98082
 2010-03-09 21:27:58 +00:00