We already know how to fold a reload from a frameindex without
analyzing the load instruction. Generalize this to handle any
frameindex load. This streamlines the logic for rematerializing loads
from stack arguments. As a side effect, it allows stackmaps to record
a stack argument location without spilling it.

Verified no effect on codegen for llvm test-suite.

llvm-svn: 194497

llvm-svn: 194496

llvm-svn: 194495

As suggested by pcc on 194226.

llvm-svn: 194494

Summary: Solves the problem described in http://llvm.org/PR17756

Reviewers: klimek

Reviewed By: klimek

CC: cfe-commits, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D2131

llvm-svn: 194493

llvm-svn: 194492

Summary: This solves http://llvm.org/PR17536

Reviewers: klimek, djasper

Reviewed By: klimek

CC: cfe-commits, klimek

Differential Revision: http://llvm-reviews.chandlerc.com/D2142

llvm-svn: 194491

llvm-svn: 194490

r194450 with a modified test. // rdar://15363492

llvm-svn: 194489

Now we can compile a VSPackage that works with VS 2010-2013 from within VS 2012.

llvm-svn: 194488

In order to help track down llvm.org/pr17226.

llvm-svn: 194487

This reverts commit r194485.

The variable is unused in some macro instantiations, but not others. We should
probably fix clang to not warn on this.

llvm-svn: 194486

llvm-svn: 194485

llvm-svn: 194484

This mirrors lld r194481

llvm-svn: 194483

Set the default key-binding only in the text editor; the
global binding of ctrl-r,ctrl-f was already taken in VS 2010.

llvm-svn: 194482

llvm-svn: 194481

The generated package is now compatible with VS 2010 - 2013.

llvm-svn: 194480

llvm-svn: 194479

llvm-svn: 194478

llvm-svn: 194477

Like GCC, this re-uses the 'f' constraint and a new 'w' print-modifier:
  asm ("ldi.w %w0, 1", "=f"(result));

Unlike GCC, the 'w' print-modifer is not _required_ to produce the intended
output. This is a consequence of differences in the internal handling of
the registers in each compiler. To be source-compatible between the
compilers, users must use the 'w' print-modifier.

MSA registers (including control registers) are supported in clobber lists.

llvm-svn: 194476

Both simpler and more powerful than the hand-rolled folding logic.

llvm-svn: 194475

llvm-svn: 194474

Fixed the following:
- Whitespace at end of most lines
- $11 test actually testing $10

llvm-svn: 194473

llvm-svn: 194472

llvm-svn: 194471

llvm-svn: 194470

[mips][msa] Added support for matching bset, bseti, bneg, and bnegi from normal IR (i.e. not intrinsics)

llvm-svn: 194469

This is a workaround for clang-format bug (PR17874).

llvm-svn: 194468

[mips][msa] Change constant used in ori tests to avoid conflict with bseti (also xori to avoid bnegi)

Upcoming commit(s) are going to add support for bseti and bnegi. This would
cause some existing tests to (correctly) change behaviour and emit a different
instruction. This patch prevents this by changing the constant used in ori and
xori tests so that they will not be matchable by the bseti and bnegi patterns
when these instructions are matchable from normal IR.

llvm-svn: 194467

llvm-svn: 194466

llvm-svn: 194465

ATOMIC_FENCE is lowered to a compiler barrier which is codegen only. There
is no need to emit an instructions since the XCore provides sequential
consistency.

Original patch by Richard Osborne

llvm-svn: 194464

llvm-svn: 194463

The xcore llvm backend does not handle 8 byte alignment viz:
  "%BadAlignment = alloca i64, align 8"
So getPreferredTypeAlign() must never overalign.

llvm-svn: 194462

Change SizeType, PtrDiffType, IntPtrType, WCharType, WIntType
to follow the XMOS llvm-gcc front end's settings.

llvm-svn: 194461

llvm-svn: 194460

Replace std::map with SmallVector to memorize the cached result since SCEV usually belongs to little Loop/BB
Linear scan on SmallVector is faster than std::map.

Code reviewer : Andrew Trick.
Test result   : Pass Unit Test & LLVM Test Suite

401.bzip2	0.425721	0.419981	101.37%
403.gcc		24.53855	24.2667		101.12%
429.mcf		0.060847	0.059944	101.51%
433.milc	0.646009	0.636119	101.55%
444.namd	1.383928	1.370614	100.97%
445.gobmk	5.836575	5.800225	100.63%
450.soplex	1.911257	1.895963	100.81%
456.hmmer	1.039565	1.032534	100.68%
458.sjeng	0.897401	0.885567	101.34%
464.h264ref	3.645908	3.577991	101.90%
470.lbm		0.049456	0.048398	102.19%
471.omnetpp	5.638575	5.60435		100.61%
bitmnp01	0.045738	0.045291	100.99%
cjpegv2data	0.304359	0.302833	100.50%
idctrn01	0.046433	0.045763	101.46%
quake2		4.534416	4.4952		100.87%
quake		2.688566	2.659208	101.10%
xcsoar		12.42545	12.30385	100.99%
linpack		0.038739	0.03803		101.86%
matrix01	0.053564	0.0528		101.45%
nbench		0.402867	0.395803	101.78%
tblook01	0.021265	0.021015	101.19%
ttsprk01	0.066384	0.065566	101.25%

llvm-svn: 194459

llvm-svn: 194458