llvm-svn: 81293

llvm-svn: 81290

llvm-svn: 81289

could look at this: the top undefined bits of an immediate shouldn't affect
isel (cmp vs cmp.w)

llvm-svn: 81288

llvm-svn: 81285

llvm-svn: 81273

llvm-svn: 81267

to instructions instead of zero extended ones.  This makes the asmprinter
print signed values more consistently.  This apparently only really affects
the X86 backend.

llvm-svn: 81265

llvm-svn: 81262

llvm-svn: 81259

llvm-svn: 81257

of using llvm-as, now that opt supports this.

llvm-svn: 81226

makes the code faster.

llvm-svn: 81220

llvm-svn: 81205

When remat'ing and destination virtual register has a sub-register index. Make sure the sub-register class matches the register class of the remat'ed instruction definition register class.

llvm-svn: 81204

llvm-svn: 81200

depth first order, so it wouldn't process unreachable blocks.
When compiling at -O0, late dead block elimination isn't done
and the bad instructions got to isel.

llvm-svn: 81187

null in the case of an empty struct, so don't try to call getNumValues
on it.

llvm-svn: 81180

from floating-point to integer first, and bitcast the result
back to floating-point. Previously, this test was passing by
falling back to SelectionDAG lowering. The resulting code isn't
as nice, but it's correct and CodeGen now stays on the fast path.

llvm-svn: 81171

llvm-svn: 81084

 - I'd appreciate it if someone else eyeballs my changes to make sure I captured
   the intent of the test.

llvm-svn: 81083

linear scan reg alloc.  This fixes a problem I ran into where extracting
a function from a larger file caused the generated code to change (masking
the problem I was trying to debug) because the allocator behaved differently.

This changes the results for two X86 regression checks.  stack-color-with-reg
is improved, with one less instruction, but pr3495 is worse, with one more
copy.  As far as I can tell, these tests were just getting lucky or unlucky,
so I've changed the expected results.

llvm-svn: 81060

llvm-svn: 80994

llvm-svn: 80986

llvm-svn: 80983

llvm-svn: 80975

FastISel to recognize this pattern and emit a floating-point
negation using xor.

llvm-svn: 80963

llvm-svn: 80946

swapping the operands if necessary.

llvm-svn: 80940

Changed the old vector shift test to use FileCheck

llvm-svn: 80936

Reference to hidden symbols do not have to go through non-lazy pointer in non-pic mode. rdar://7187172.

llvm-svn: 80904

llvm-svn: 80902

llvm-svn: 80901

llvm-svn: 80838

llvm-svn: 80707

llvm-svn: 80705

llvm-svn: 80658

tied to different source registers, the TwoAddressInstructionPass needs to
be smarter.  Change it to check before replacing a source register whether
that source register is tied to a different destination register, and if so,
defer handling it until a subsequent iteration.

llvm-svn: 80654

llvm-svn: 80651

makes an eggregious hack somewhat more palatable. Bringing the LSDA forward
and making it a GV available for reference would be even better, but is
beyond the scope of what I'm looking to solve at this point.

Objective C++ code could generate function names that broke the previous
scheme. This fixes that.

llvm-svn: 80649