llvm-svn: 56453

(srl x, (trunc (and y, c))) -> (srl x, (and (trunc y), c))
etc. when both "trunc" and "and" have single uses.

llvm-svn: 56452

Change the calling convention used when tail call optimization is enabled from CC_X86_32_TailCall to CC_X86_32_FastCC.

llvm-svn: 56436

llvm-svn: 56432

add_custom_command with COMMENT. It was forcing unconditional command
execution.

llvm-svn: 56425

llvm-svn: 56419

llvm-svn: 56418

llvm-svn: 56415

sarl    $3, %ecx

instead of:

movl    $3, %ecx
sarl    %cl, %edx

This shrinks fast isel 176.gcc by about 2000 instructions (.3%)

llvm-svn: 56413

Handle{Virt,Phys}Reg{Def,Use}. Remove a redundant check
for register zero, and redundant checks for isPhysicalRegister.

llvm-svn: 56412

compute the maximum element directly.

llvm-svn: 56411

correct in the presence of things like EH labels.

llvm-svn: 56410

llvm-svn: 56399

llvm-svn: 56391

Change some class to struct for coherency.

llvm-svn: 56389

Per review feedback.

llvm-svn: 56388

of mayReadFromMemory and mayWriteToMemory.

llvm-svn: 56387

Check bits for preferred register.

llvm-svn: 56384

Fix PR2808. When regalloc runs out of register, it spill a physical register around the live interval being allocated. Do not continue to try to spill another register, just grab the physical register and move on.

llvm-svn: 56381

llvm-svn: 56380

llvm-svn: 56378

llvm-svn: 56377

llvm-svn: 56376

llvm-svn: 56372

results in better code for globals. Also, unbreak the local CSE for
GlobalValue stub loads.

llvm-svn: 56371

have previously been assigned conflicting physreg.

llvm-svn: 56364

llvm-svn: 56359

use ARG_FLAGSSDNode as the most aligned node type,
as it contains an int64_t, which is 8-byte
aligned on mingw.

llvm-svn: 56358

llvm-svn: 56355

llvm-svn: 56352

llvm-svn: 56349

untested, Use::swap() is definitely not done yet

llvm-svn: 56348

llvm-svn: 56345

and non-demotion of readnone to readonly.

llvm-svn: 56344

llvm-svn: 56343

Unfortunately this means removing one regression test
of GlobalsModRef because I couldn't work out how to
perform it without MarkModRef.

llvm-svn: 56342

can get the readnone/readonly attributes, and gives them it.
The plan is to remove markmodref (which did the same thing
by querying GlobalsModRef) and delete the analogous
functionality from GlobalsModRef.

llvm-svn: 56341

llvm-svn: 56338

description says it does), not just when -analyze is
used as well.  This means printing to stderr, so adjust
some tests.

llvm-svn: 56337

and redo as linked list walk.  Logic moved into RA.
Per review feedback.

llvm-svn: 56326