llvm-svn: 42335

llvm-svn: 42333

llvm-svn: 42332

llvm-svn: 42323

llvm-svn: 42322

llvm-svn: 42316

llvm-svn: 42313

llvm-svn: 42312

both results with a single div or idiv instruction. This uses new X86ISD
nodes for DIV and IDIV which are introduced during the legalize phase
so that the SelectionDAG's CSE can automatically eliminate redundant
computations.

llvm-svn: 42308

the check to see if the assembler supports .loc from X86TargetLowering
into the superclass TargetLowering.

llvm-svn: 42297

Added support for new condition code modeling scheme (i.e. physical register dependency). These are a bunch of instructions that are duplicated so the x86 backend can support both the old and new schemes at the same time. They will be deleted after
all the kinks are worked out.

llvm-svn: 42285

llvm-svn: 42283

llvm-svn: 42282

have situations where an SSE instruction turns into
multiple blocks, with the live range of an x87
register crossing them.  To do this correctly make
sure we examine all blocks when inserting
FP_REG_KILL.  PR 1697.  (This was exposed by my
fix for PR 1681, but the same thing could happen
mixing x87 long double with SSE.)

llvm-svn: 42281

instead of ISD::LABEL with a manual .debug_line entry when the assembler
supports .file and .loc directives.

llvm-svn: 42278

aren't really usable without each other. 

llvm-svn: 42274

Fixed some comments

llvm-svn: 42271

llvm-svn: 42268

code that creates the label too.

llvm-svn: 42265

asm to die with:

ScheduleDAG.cpp:269: failed assertion `false && "Couldn't find the register class"'

instead of:
failed assertion `RegMap->getRegClass(VReg) == RC && "Register class of operand and regclass of use don't agree!"'

yay.

llvm-svn: 42259

keep f32 in SSE registers and f64 in x87.  This
is effectively a new codegen mode.
Change addLegalFPImmediate to permit float and
double variants to do different things.
Adjust callers.

llvm-svn: 42246

llvm-svn: 42239

Implement calls to functions with byval arguments on X86

llvm-svn: 42192

llvm-svn: 42189

llvm-svn: 42182

llvm-svn: 42179

llvm-svn: 42162

llvm-svn: 42159

llvm-svn: 42156

llvm-svn: 42155

llvm-svn: 42153

llvm-svn: 42147

llvm-svn: 42124

between two registers in the specific class.

llvm-svn: 42123

tables so that they are eligible for reload/remat folding. And add
entries for JMP and CALL.

llvm-svn: 42094

and storeRegToStackSlot.  Evan and I concluded this
should never be needed and it appears to be true.
(It if is needed, adjustment would be needed for
long double to work.)

llvm-svn: 42049

Add a new DenseMapInfo::isEqual method to allow clients to redefine
the equality predicate used when probing the hash table.

llvm-svn: 42042

llvm-svn: 42037

can terminate a block with no fall-through.

llvm-svn: 42029

llvm-svn: 42027