Commit Graph

64156 Commits

Author SHA1 Message Date
Dan Gohman
e39a47c5b3 Delete a bogus check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112438 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 15:30:29 +00:00
Dan Gohman
6a83271532 Add some comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112437 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 15:27:08 +00:00
Dan Gohman
3902f9fca8 Move this debug output into GenerateAllReuseFormula, to declutter
the high-level logic.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112436 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 15:21:38 +00:00
Dan Gohman
a7d0d64b7a Delete an unused declaration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112435 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 15:19:11 +00:00
Dan Gohman
46fd7a6ef8 Do one lookup instead of two.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112434 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 15:18:49 +00:00
Dan Gohman
d578a40853 Restructure the {A,+,B}<L> * {C,+,D}<L> folding so that it folds
all applicable addrecs before recursing on getMulExpr, instead of
recursing on getMulExpr for each one.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112433 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 15:16:58 +00:00
Dan Gohman
b8fc62bc58 Batch up subtracts along with adds, when analyzing long chains of
operations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112432 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 15:10:06 +00:00
Dan Gohman
c6a8e99fb3 Micro-optimize GroupByComplexity.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112431 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 15:07:13 +00:00
Dan Gohman
0f32ae3aa7 Hold AddRec->getLoop() in a variable, to make the Mul code more consistent
with the Add code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112430 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 14:55:19 +00:00
Dan Gohman
30cbc860f8 Rename a variable, for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112429 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 14:53:34 +00:00
Dan Gohman
7e1fee7ece Use iterators instead of indices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112428 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 14:52:02 +00:00
Dan Gohman
8f49168c4c Don't worry about union types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112427 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 14:50:21 +00:00
Dan Gohman
2b5258c5f9 Make this test less dependent on register allocation choices.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112426 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 14:49:42 +00:00
Dan Gohman
05841638a7 Use exec.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112425 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 14:49:00 +00:00
Dan Gohman
c9fa2cd596 Delete an unused declaration.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112424 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 14:48:15 +00:00
Kalle Raiskila
bd887df8b9 Fix lowering of INSERT_VECTOR_ELT in SPU.
The IDX was treated as byte index, not element index.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112422 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 12:41:50 +00:00
Bill Wendling
10ce7f3116 Fix whitespaces. No functionality changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112421 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 11:31:07 +00:00
Chris Lattner
8bfc4299c2 Stop explicitly scheduling domfrontier before the loop passes,
since none of them use it.  With this, we now only run 
domfrontier (an N^2 analysis) 3 times at clang -O3: once for 
"early" per-function cleanup, once at the start of the
per-function pipeline to support SRoA, and once late because
the EHPrepare class uses it.

EHPrepare needs to stop using it, this is silly and wasteful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112420 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 07:05:51 +00:00
Chris Lattner
e418ac832c licm preserves the cfg, it doesn't have to explicitly say it
preserves domfrontier.  It does preserve AA though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112419 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 07:02:56 +00:00
Chris Lattner
44e2bd31f1 now that it doesn't use the PromoteMemToReg function, LICM doesn't
require DomFrontier.  Dropping this doesn't actually save any runs
of the pass though.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112418 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 06:49:44 +00:00
Chris Lattner
e488064922 completely rewrite the memory promotion algorithm in LICM.
Among other things, this uses SSAUpdater instead of 
PromoteMemToReg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112417 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 06:43:52 +00:00
Bob Wilson
04d6c289ab 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112416 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 05:57:34 +00:00
Chris Lattner
63a75c13b1 use getUniqueExitBlocks instead of a manual set.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112412 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 05:12:21 +00:00
Eli Friedman
5033f64694 A couple of small missed optimizations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112411 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 05:07:40 +00:00
Chris Lattner
a6a36f59b4 reimplement LICM::sink to use SSAUpdater instead of PromoteMemToReg.
This leads to much simpler code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 04:55:06 +00:00
Chris Lattner
ffd9beefb8 implement SSAUpdater::RewriteUseAfterInsertions, a helpful form of RewriteUse.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112409 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 04:54:06 +00:00
Chris Lattner
abd2a75900 remove dead proto
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112408 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 04:53:24 +00:00
Chris Lattner
d7bc19dfee reduce indentation in LICM::sink by using early exits, use
getUniqueExitBlocks instead of getExitBlocks and a manual
set to eliminate dupes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112405 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 04:28:20 +00:00
Chris Lattner
dc1ceb370a modernize this pass a bit: use efficient set/map and reduce indentation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112404 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 04:23:04 +00:00
Duncan Sands
6654ff2741 Flesh out the list of things I've worked on.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112403 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 04:22:35 +00:00
Chris Lattner
fedac7d9b0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112402 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 04:14:47 +00:00
Chris Lattner
9476d746d6 more cleanup
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112401 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 04:13:43 +00:00
Chris Lattner
6e1f51099d clean this up
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112400 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 04:06:55 +00:00
Bill Wendling
1f7bf0e1f5 - 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112399 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 03:55:31 +00:00
Chris Lattner
82457d08f9 merge a bunch of shuffle tests into sse2.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112398 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 03:19:04 +00:00
Chris Lattner
4644a936dc add a bunch more common shuffles to the instprinter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112397 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 03:08:08 +00:00
Chris Lattner
c19b9477c9 add some nounwind's
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112396 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 03:07:47 +00:00
Bill Wendling
2c4b30ebca Name ANDflag to ANDS, which is less stupid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112395 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 03:06:09 +00:00
Bill Wendling
ac3b935362 File missing from last commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112394 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 03:02:28 +00:00
Bill Wendling
0b4aa7d11b Create an ARMISD::AND node. This node is exactly like the "ARM::AND" node, but
it sets the CPSR register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112393 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-29 03:02:11 +00:00
NAKAMURA Takumi
fedb34665a Minor change.
This is test for git svn dcommit

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112389 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 21:12:51 +00:00
Chris Lattner
6aa928d57a 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112387 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 20:42:31 +00:00
Chris Lattner
a5729aae5d fixme accomplished
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112386 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 20:40:28 +00:00
Chris Lattner
9a7346ca7e tidy up
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112385 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 20:34:35 +00:00
NAKAMURA Takumi
48026f56e6 Add me to the "blame list"!
And it is my 1st test commit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112384 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 20:24:43 +00:00
Dan Gohman
245ae51dce Remove obsolete keywords which are no longer relevant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112382 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 20:14:05 +00:00
Dan Gohman
04a7858241 Remove unions from the vim syntax highlighting.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 20:11:28 +00:00
Chris Lattner
24faf611a3 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.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112379 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 17:59:08 +00:00
Chris Lattner
3ddcc43040 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112378 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 17:28:30 +00:00
Chris Lattner
6e80e44926 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112377 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 17:15:43 +00:00