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90398 Commits

Author SHA1 Message Date
Chris Lattner 1dc98b47b5 completely rewrite the memory promotion algorithm in LICM. 
Among other things, this uses SSAUpdater instead of 
PromoteMemToReg.

llvm-svn: 112417
 2010-08-29 06:43:52 +00:00
Bob Wilson d0c054886c Remove NEON vaddl, vaddw, vsubl, and vsubw intrinsics. Instead, use llvm 
IR add/sub operations with one or both operands sign- or zero-extended.
Auto-upgrade the old intrinsics.

llvm-svn: 112416
 2010-08-29 05:57:34 +00:00
Zhongxing Xu b0a6de9e8f Add comments. 
llvm-svn: 112414
 2010-08-29 05:16:31 +00:00
Bob Wilson 0e7a398936 Translate NEON vaddl, vaddw, vsubl, and vsubw builtins to llvm add/sub 
with zext/sext operations, instead of to llvm intrinsics.  (We can also
get rid of the clang builtins and handle these entirely in the arm_neon.h
header if there is a way to express vector sext/zext in C.)

llvm-svn: 112413
 2010-08-29 05:14:28 +00:00
Chris Lattner 9c3931a544 use getUniqueExitBlocks instead of a manual set. 
llvm-svn: 112412
 2010-08-29 05:12:21 +00:00
Eli Friedman f75de6eae7 A couple of small missed optimizations. 
llvm-svn: 112411
 2010-08-29 05:07:40 +00:00
Chris Lattner 85bf5421e1 reimplement LICM::sink to use SSAUpdater instead of PromoteMemToReg. 
This leads to much simpler code.

llvm-svn: 112410
 2010-08-29 04:55:06 +00:00
Chris Lattner c3fb03e289 implement SSAUpdater::RewriteUseAfterInsertions, a helpful form of RewriteUse. 
llvm-svn: 112409
 2010-08-29 04:54:06 +00:00
Chris Lattner b50407f104 remove dead proto 
llvm-svn: 112408
 2010-08-29 04:53:24 +00:00
Chris Lattner cd96b4df56 reduce indentation in LICM::sink by using early exits, use 
getUniqueExitBlocks instead of getExitBlocks and a manual
set to eliminate dupes.

llvm-svn: 112405
 2010-08-29 04:28:20 +00:00
Chris Lattner 188cc5a0fc modernize this pass a bit: use efficient set/map and reduce indentation. 
llvm-svn: 112404
 2010-08-29 04:23:04 +00:00
Duncan Sands 77b9df21ba Flesh out the list of things I've worked on. 
llvm-svn: 112403
 2010-08-29 04:22:35 +00:00
Chris Lattner dc8070ed6d when merging two alias sets, the result set is volatile if either 
of the sets is volatile.  We were dropping the volatile bit of the
merged in set, leading (luckily) to assertions in cases like 
PR7535.  I cannot produce a testcase that repros with opt, but this
is obviously correct.

llvm-svn: 112402
 2010-08-29 04:14:47 +00:00
Chris Lattner eef6b19dcb more cleanup 
llvm-svn: 112401
 2010-08-29 04:13:43 +00:00
Chris Lattner afb7074f18 clean this up 
llvm-svn: 112400
 2010-08-29 04:06:55 +00:00
Bill Wendling df9ec17d53 - Add a parameter to T2I_bin_irs for those patterns which set the S bit. 
- Create T2I_bin_sw_irs to be like T2I_bin_w_irs, but that it sets the S bit.

llvm-svn: 112399
 2010-08-29 03:55:31 +00:00
Chris Lattner c2887bc283 merge a bunch of shuffle tests into sse2.ll 
llvm-svn: 112398
 2010-08-29 03:19:04 +00:00
Chris Lattner 38ccc8b884 add a bunch more common shuffles to the instprinter. 
llvm-svn: 112397
 2010-08-29 03:08:08 +00:00
Chris Lattner b1ff978406 add some nounwind's 
llvm-svn: 112396
 2010-08-29 03:07:47 +00:00
Bill Wendling b0dc465c04 Name ANDflag to ANDS, which is less stupid. 
llvm-svn: 112395
 2010-08-29 03:06:09 +00:00
Bill Wendling ac64ed0923 File missing from last commit. 
llvm-svn: 112394
 2010-08-29 03:02:28 +00:00
Bill Wendling 0a65116cce Create an ARMISD::AND node. This node is exactly like the "ARM::AND" node, but 
it sets the CPSR register.

llvm-svn: 112393
 2010-08-29 03:02:11 +00:00
John McCall 49039d4afb Complain if a __pragma isn't terminated. 
llvm-svn: 112392
 2010-08-29 01:09:54 +00:00
John McCall 89e925d78e Add support for Microsoft's __pragma in the preprocessor. 
Patch by Francois Pichet!

llvm-svn: 112391
 2010-08-28 22:34:47 +00:00
John McCall 0856906b1e When perform exact-qualifier-match template argument deduction, 
properly account for the possibility that certain opaque types
might be more qualified than they appear.  Fixes PR7708.

llvm-svn: 112390
 2010-08-28 22:14:41 +00:00
NAKAMURA Takumi 64be20e5a4 Minor change. 
This is test for git svn dcommit

llvm-svn: 112389
 2010-08-28 21:12:51 +00:00
Howard Hinnant 8759d9d4d0 [futures.promise]. Depends on rvalue-ref support to work 100%. 
llvm-svn: 112388
 2010-08-28 21:01:06 +00:00
Chris Lattner 7a05e6dca2 I have manually decoded the imm field of an insertps one too many 
times.  This patch causes llc and llvm-mc (which both default to
verbose-asm) to print out comments after a few common shuffle 
instructions which indicates the shuffle mask, e.g.:

	insertps	$113, %xmm3, %xmm0     ## xmm0 = zero,xmm0[1,2],xmm3[1]
	unpcklps	%xmm1, %xmm0    ## xmm0 = xmm0[0],xmm1[0],xmm0[1],xmm1[1]
	pshufd	$1, %xmm1, %xmm1        ## xmm1 = xmm1[1,0,0,0]

This is carefully factored to keep the information extraction (of the
shuffle mask) separate from the printing logic.  I plan to move the
extraction part out somewhere else at some point for other parts of
the x86 backend that want to introspect on the behavior of shuffles.

llvm-svn: 112387
 2010-08-28 20:42:31 +00:00
Chris Lattner 112b6ee3f2 fixme accomplished 
llvm-svn: 112386
 2010-08-28 20:40:28 +00:00
Chris Lattner d39d2aad3f tidy up 
llvm-svn: 112385
 2010-08-28 20:34:35 +00:00
NAKAMURA Takumi d1ca3e145f Add me to the "blame list"! 
And it is my 1st test commit.

llvm-svn: 112384
 2010-08-28 20:24:43 +00:00
John McCall fb3f9ba969 If filtering a lookup result leaves it ambiguous, keep the ambiguity 
kind.  Fixes PR7252.

llvm-svn: 112383
 2010-08-28 20:17:00 +00:00
Dan Gohman d13b1a3581 Remove obsolete keywords which are no longer relevant. 
llvm-svn: 112382
 2010-08-28 20:14:05 +00:00
Dan Gohman 5458b9ddc6 Remove unions from the vim syntax highlighting. 
llvm-svn: 112381
 2010-08-28 20:11:28 +00:00
Ted Kremenek 52ac860d9c Delete the relaxedLiveness object in the dtor of AnalysisContext. 
llvm-svn: 112380
 2010-08-28 18:59:04 +00:00
Chris Lattner 94656b1c8c fix the buildvector->insertp[sd] logic to not always create a redundant 
insertp[sd] $0, which is a noop.  Before:

_f32:                                   ## @f32
	pshufd	$1, %xmm1, %xmm2
	pshufd	$1, %xmm0, %xmm3
	addss	%xmm2, %xmm3
	addss	%xmm1, %xmm0
                                        ## kill: XMM0<def> XMM0<kill> XMM0<def>
	insertps	$0, %xmm0, %xmm0
	insertps	$16, %xmm3, %xmm0
	ret

after:

_f32:                                   ## @f32
	movdqa	%xmm0, %xmm2
	addss	%xmm1, %xmm2
	pshufd	$1, %xmm1, %xmm1
	pshufd	$1, %xmm0, %xmm3
	addss	%xmm1, %xmm3
	movdqa	%xmm2, %xmm0
	insertps	$16, %xmm3, %xmm0
	ret

The extra movs are due to a random (poor) scheduling decision.

llvm-svn: 112379
 2010-08-28 17:59:08 +00:00
Chris Lattner bcb6090ad0 fix the BuildVector -> unpcklps logic to not do pointless shuffles 
when the top elements of a vector are undefined.  This happens all
the time for X86-64 ABI stuff because only the low 2 elements of
a 4 element vector are defined.  For example, on:

_Complex float f32(_Complex float A, _Complex float B) {
  return A+B;
}

We used to produce (with SSE2, SSE4.1+ uses insertps):

_f32:                                   ## @f32
	movdqa	%xmm0, %xmm2
	addss	%xmm1, %xmm2
	pshufd	$16, %xmm2, %xmm2
	pshufd	$1, %xmm1, %xmm1
	pshufd	$1, %xmm0, %xmm0
	addss	%xmm1, %xmm0
	pshufd	$16, %xmm0, %xmm1
	movdqa	%xmm2, %xmm0
	unpcklps	%xmm1, %xmm0
	ret

We now produce:

_f32:                                   ## @f32
	movdqa	%xmm0, %xmm2
	addss	%xmm1, %xmm2
	pshufd	$1, %xmm1, %xmm1
	pshufd	$1, %xmm0, %xmm3
	addss	%xmm1, %xmm3
	movaps	%xmm2, %xmm0
	unpcklps	%xmm3, %xmm0
	ret

This implements rdar://8368414

llvm-svn: 112378
 2010-08-28 17:28:30 +00:00
Chris Lattner 96db6e66f4 improve comments in the unpcklps generating logic, introduce 
a new EltStride variable instead of reusing NumElems variable
for a non-obvious purpose.  No functionality change.

llvm-svn: 112377
 2010-08-28 17:15:43 +00:00
Michael J. Spencer d75cf22f72 Don't cast Win32 FILETIME structs to int64. Patch by Dimitry Andric! 
According to the Microsoft documentation here:
http://msdn.microsoft.com/en-us/library/ms724284%28VS.85%29.aspx

this cast used in lib/System/Win32/Path.inc:

__int64 ft = *reinterpret_cast<__int64*>(&fi.ftLastWriteTime);

should not be done.  The documentation says: "Do not cast a pointer to a
FILETIME structure to either a ULARGE_INTEGER* or __int64* value because
it can cause alignment faults on 64-bit Windows."

llvm-svn: 112376
 2010-08-28 16:39:32 +00:00
Chris Lattner bd24404718 remove the MSIL backend. It isn't maintained, is buggy, has no testcases 
and hasn't kept up with ToT.  Approved by Anton.

llvm-svn: 112375
 2010-08-28 16:33:36 +00:00
Chris Lattner 0e7c68da96 improve comment, patch by Vladimir Kirillov! 
llvm-svn: 112374
 2010-08-28 16:26:18 +00:00
Gabor Greif ae849e4407 simplify by relying on cascading operator-> 
llvm-svn: 112373
 2010-08-28 15:46:56 +00:00
Gabor Greif 122f1eb2b8 simplify 
llvm-svn: 112372
 2010-08-28 15:42:30 +00:00
Nick Lewycky 4a9da315d3 Fix copy+paste error in comment. 
llvm-svn: 112370
 2010-08-28 13:52:51 +00:00
Gabor Greif b0c557be1e add another test for PR8007 
this is still failing, need to come up with a fix
(but we are in good company as the first gcc version
 pass this test will be v4.6)

llvm-svn: 112369
 2010-08-28 12:12:45 +00:00
Gabor Greif 156315b7d8 the target of the link uses the singular form, so do we too 
llvm-svn: 112367
 2010-08-28 11:05:27 +00:00
Gabor Greif e27ea5c92e typo 
llvm-svn: 112366
 2010-08-28 11:03:06 +00:00
Gabor Greif e6523ea915 suppress annoying textual repetition as 'aka' 
llvm-svn: 112365
 2010-08-28 10:40:52 +00:00
Benjamin Kramer 2e5c14713c Update ocaml test. 
llvm-svn: 112364
 2010-08-28 10:29:41 +00:00
Benjamin Kramer 1d872f5a9f Remove unions from the ocaml bindings. 
llvm-svn: 112363
 2010-08-28 09:47:42 +00:00