Restructure ARM code emitter to use instruction formats instead of addressing modes to determine how to encode instructions.

llvm-svn: 58764

Add binary encoding support for multiply instructions. Some blanks left to fill in, but the basics are there.

llvm-svn: 58626

llvm-svn: 58527

llvm-svn: 57524

parameters instead of raw Constants.  This prevents the constants from
being selected by the isel pass, fixing PR2735.

llvm-svn: 57385

Unconditional branch instruction encoding fix. Needs to use ABI, not AXI, to get the proper opcode bits.

llvm-svn: 57262

llvm-svn: 57251

llvm-svn: 56277

llvm-svn: 56180

llvm-svn: 56176

with ConstantInt. This led to fixing a bug in TargetLowering.cpp
using getValue instead of getAPIntValue.

llvm-svn: 56159

llvm-svn: 55601

llvm-svn: 55599

llvm-svn: 55598

llvm-svn: 55596

llvm-svn: 55593

llvm-svn: 55591

llvm-svn: 55530

llvm-svn: 55518

llvm-svn: 54128

Replace all target specific implicit def instructions with a target independent one: TargetInstrInfo::IMPLICIT_DEF.

llvm-svn: 48380

llvm-svn: 47663

1. Legalize now always promotes truncstore of i1 to i8. 
2. Remove patterns and gunk related to truncstore i1 from targets.
3. Rename the StoreXAction stuff to TruncStoreAction in TLI.
4. Make the TLI TruncStoreAction table a 2d table to handle from/to conversions.
5. Mark a wide variety of invalid truncstores as such in various targets, e.g.
   X86 currently doesn't support truncstore of any of its integer types.
6. Add legalize support for truncstores with invalid value input types.
7. Add a dag combine transform to turn store(truncate) into truncstore when
   safe.

The later allows us to compile CodeGen/X86/storetrunc-fp.ll to:

_foo:
	fldt	20(%esp)
	fldt	4(%esp)
	faddp	%st(1)
	movl	36(%esp), %eax
	fstps	(%eax)
	ret

instead of:

_foo:
	subl	$4, %esp
	fldt	24(%esp)
	fldt	8(%esp)
	faddp	%st(1)
	fstps	(%esp)
	movl	40(%esp), %eax
	movss	(%esp), %xmm0
	movss	%xmm0, (%eax)
	addl	$4, %esp
	ret

llvm-svn: 46140

Move definition of 'trap' sdnode up from x86 instrinfo to targetselectiondag.td.

llvm-svn: 46017

llvm-svn: 45821

llvm-svn: 45727

llvm-svn: 45667

llvm-svn: 45656

llvm-svn: 45653

llvm-svn: 45418

Implicit def instructions, e.g. X86::IMPLICIT_DEF_GR32, are always re-materializable and they should not be spilled.

llvm-svn: 44960

llvm-svn: 44045

adjustment fields, and an optional flag. If there is a "dynamic_stackalloc" in
the code, make sure that it's bracketed by CALLSEQ_START and CALLSEQ_END. If
not, then there is the potential for the stack to be changed while the stack's
being used by another instruction (like a call).

This can only result in tears...

llvm-svn: 44037

Target maintainers: please check that the instructions for your target are correctly marked.

llvm-svn: 44012

llvm-svn: 41863

llvm-svn: 41812

llvm-svn: 41626

llvm-svn: 40887

llvm-svn: 40658

llvm-svn: 40132