Fixes PR4314.

llvm-svn: 73007

empty SmallVector.

llvm-svn: 72512

llvm-svn: 67454

linkage: the value may be replaced with something
different at link time.  (Frontends that want to
allow values to be loaded out of weak constants can
give their constants weak_odr linkage).

llvm-svn: 67407

llvm-svn: 62279

llvm-svn: 62244

llvm-svn: 59778

llvm-svn: 58593

llvm-svn: 55779

llvm-svn: 55271

patch contributed by m-s!

llvm-svn: 55270

llvm-svn: 54804

llvm-svn: 54792

track individual leaf values in such cases, so it needs to treat
struct values as normal values in this case.

llvm-svn: 54760

Remove the GetResultInst instruction. It is still accepted in LLVM assembly
and bitcode, where it is now auto-upgraded to ExtractValueInst. Also, remove
support for return instructions with multiple values. These are auto-upgraded
to use InsertValueInst instructions.

The IRBuilder still accepts multiple-value returns, and auto-upgrades them
to InsertValueInst instructions.

llvm-svn: 53941

getInsertedValueOperand accessors. Thanks Matthijs!

llvm-svn: 52543

instructions. Thanks to Matthijs Kooijman for pointing this out!

llvm-svn: 52542

propagating constants across aggregate return values when
insertvalue and extractvalue are used.

llvm-svn: 52520

llvm-svn: 51535

in gcc.dg/pr27531-1.c.

llvm-svn: 51464

several things that were neither in an anonymous namespace nor static
but not intended to be global.

llvm-svn: 51017

method.  DOUT statements are disabled when assertions are off, but the
side effects of getName() are still evaluated.  Just call getNameSTart,
which is close enough and doesn't cause heap traffic.

llvm-svn: 50958

llvm-svn: 50957

r48047 r48084 r48085 r48086 r48088 r48096 r48099 r48109 and r48123.

llvm-svn: 50265

llvm-svn: 50203

sccp tracks getresult values, not call values in this
case.

llvm-svn: 50202

llvm-svn: 50201

would turn every getresult instruction into undef.  This helps with
rdar://5778210

llvm-svn: 50140

llvm-svn: 49430

Specifically, introduction of XXX::Create methods
for Users that have a potentially variable number of
Uses.

llvm-svn: 49277

adding <map> to many files that actually do need it.

llvm-svn: 48667

llvm-svn: 48227

llvm-svn: 48210

llvm-svn: 48109

llvm-svn: 48047

llvm-svn: 47371

way or the other.  Rewriting the code itself prevents subsequent analysis
passes from making contradictory conclusions about the code that could 
cause an infeasible path to be made feasible.

llvm-svn: 46427

llvm-svn: 45418

Disable null pointer folding transforms for non-generic address spaces. This should probably be a target-specific predicate based on address space. That way for targets where this isn't applicable the predicate can be optimized away.

llvm-svn: 45403

of comparing begin() and end().

llvm-svn: 42585