are represented as "weak", but there are subtle differences
in some cases on Darwin, so we need both.  The intent
is that "common" will behave identically to "weak" unless
somebody changes their target to do something else.
No functional change as yet.

llvm-svn: 51118

llvm-svn: 51115

Patch by Matthijs Kooijman!

llvm-svn: 51114

SETOEQ, is it does with (SETEQ & SETULE), map it to SETEQ.

llvm-svn: 51112

llvm-svn: 51110

llvm-svn: 51108

Changed cout to DOUT, and TODOs to FIXMEs.
Other changes as per coding conventions.

llvm-svn: 51105

DAG instruction selectors. Introudce a dedicated header file for this part:
include/llvm/CodeGen/DAGISelHeader.h

TableGen now only generates the include preprocessor directive to include this
new header.

This is a preparation for supporting multiple implementations of instruction
selectors in the future.

Reviewed and approved by Evan and Dan.

llvm-svn: 51102

llvm-svn: 51100

llvm-svn: 51099

llvm-svn: 51098

referring to it to LangRef.html.

llvm-svn: 51097

Regenerated configure.

llvm-svn: 51096

to make the Cpp backend output compilable.

llvm-svn: 51095

llvm-svn: 51094

llvm-svn: 51093

llvm-svn: 51092

This eliminates the need for several awkward casts, including
the last dynamic_cast under lib/Target.

llvm-svn: 51091

llvm-svn: 51090

llvm-svn: 51089

llvm-svn: 51088

llvm-svn: 51087

llvm-svn: 51085

llvm-svn: 51084

Patch by Matthijs Kooijman!

llvm-svn: 51083

bug as well as a missed optimization.  We weren't properly checking for local
dependencies before moving on to non-local ones when doing non-local read-only 
call CSE.

llvm-svn: 51082

Do not rely on std::swap<Use>, provide a (faster) member function instead.
This change is primarily necessitated by MSVC++'s incompatibility with
declaring std::swap<Use> to be a friend of Use.

Also contains some minor tweaks to Use inline functions,
to undo pointless changes that sneaked in with the last merge.

llvm-svn: 51078

llvm-svn: 51077

llvm-svn: 51075

instruction.  This fixes some Ada miscompiles reported in PR2324.

llvm-svn: 51069

llvm-svn: 51067

llvm-svn: 51063

llvm-svn: 51062

- Incorporate Chris' comment suggestion.

llvm-svn: 51061

llvm-svn: 51060

working with struct field or array element values. Thanks Duncan!

llvm-svn: 51059

llvm-svn: 51057

llvm-svn: 51056

- Correct a pasto.

llvm-svn: 51054

llvm-svn: 51048