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Author SHA1 Message Date
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
Michael J. Spencer
44edb0bd0c 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."

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112376 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 16:39:32 +00:00
Chris Lattner
885b661e10 remove the MSIL backend. It isn't maintained, is buggy, has no testcases 
and hasn't kept up with ToT.  Approved by Anton.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112375 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 16:33:36 +00:00
Benjamin Kramer
9df0a0a871 Update ocaml test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112364 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 10:29:41 +00:00
Benjamin Kramer
13ba2f9714 Remove unions from the ocaml bindings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112363 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 09:47:42 +00:00
Bob Wilson
e5ce4f68c7 Use pseudo instructions for VST1 and VST2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112357 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 05:12:57 +00:00
Chris Lattner
61c70e98ac remove unions from LLVM IR. They are severely buggy and not 
being actively maintained, improved, or extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112356 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 04:09:24 +00:00
Chris Lattner
5f88af5376 remove the ABCD and SSI passes. They don't have any clients that 
I'm aware of, aren't maintained, and LVI will be replacing their value.
nlewycky approved this on irc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112355 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 03:51:24 +00:00
Chris Lattner
5f8a87dd76 remove dead proto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112354 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 03:45:03 +00:00
Chris Lattner
2d9005848d more dead thing zapping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112353 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 03:43:50 +00:00
Chris Lattner
1ff90f7896 zap dead method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112352 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 03:42:45 +00:00
Chris Lattner
157d4ead36 for completeness, allow undef also. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112351 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 03:36:51 +00:00
Chris Lattner
b188a3789e squish dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112350 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 03:21:03 +00:00
Chris Lattner
18303ef9e5 zap dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112349 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 03:18:45 +00:00
Bruno Cardoso Lopes
27f1279411 Clean up the logic of vector shuffles -> vector shifts. 
Also teach this logic how to handle target specific shuffles if
needed, this is necessary while searching recursively for zeroed
scalar elements in vector shuffle operands.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112348 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 02:46:39 +00:00
Chris Lattner
7900779543 handle the constant case of vector insertion. For something 
like this:

struct S { float A, B, C, D; };

struct S g;
struct S bar() { 
  struct S A = g;
  ++A.B;
  A.A = 42;
  return A;
}

we now generate:

_bar:                                   ## @bar
## BB#0:                                ## %entry
	movq	_g@GOTPCREL(%rip), %rax
	movss	12(%rax), %xmm0
	pshufd	$16, %xmm0, %xmm0
	movss	4(%rax), %xmm2
	movss	8(%rax), %xmm1
	pshufd	$16, %xmm1, %xmm1
	unpcklps	%xmm0, %xmm1
	addss	LCPI1_0(%rip), %xmm2
	pshufd	$16, %xmm2, %xmm2
	movss	LCPI1_1(%rip), %xmm0
	pshufd	$16, %xmm0, %xmm0
	unpcklps	%xmm2, %xmm0
	ret

instead of:

_bar:                                   ## @bar
## BB#0:                                ## %entry
	movq	_g@GOTPCREL(%rip), %rax
	movss	12(%rax), %xmm0
	pshufd	$16, %xmm0, %xmm0
	movss	4(%rax), %xmm2
	movss	8(%rax), %xmm1
	pshufd	$16, %xmm1, %xmm1
	unpcklps	%xmm0, %xmm1
	addss	LCPI1_0(%rip), %xmm2
	movd	%xmm2, %eax
	shlq	$32, %rax
	addq	$1109917696, %rax       ## imm = 0x42280000
	movd	%rax, %xmm0
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112345 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 01:50:57 +00:00
Duncan Sands
75ebbceeed Straighten out any triple strings passed on the command line before 
they hit the rest of the system.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112344 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 01:30:02 +00:00
Chris Lattner
3dd08734c1 optimize bitcasts from large integers to vector into vector 
element insertion from the pieces that feed into the vector.
This handles a pattern that occurs frequently due to code
generated for the x86-64 abi.  We now compile something like
this:

struct S { float A, B, C, D; };
struct S g;
struct S bar() { 
  struct S A = g;
  ++A.A;
  ++A.C;
  return A;
}

into all nice vector operations:

_bar:                                   ## @bar
## BB#0:                                ## %entry
	movq	_g@GOTPCREL(%rip), %rax
	movss	LCPI1_0(%rip), %xmm1
	movss	(%rax), %xmm0
	addss	%xmm1, %xmm0
	pshufd	$16, %xmm0, %xmm0
	movss	4(%rax), %xmm2
	movss	12(%rax), %xmm3
	pshufd	$16, %xmm2, %xmm2
	unpcklps	%xmm2, %xmm0
	addss	8(%rax), %xmm1
	pshufd	$16, %xmm1, %xmm1
	pshufd	$16, %xmm3, %xmm2
	unpcklps	%xmm2, %xmm1
	ret

instead of icky integer operations:

_bar:                                   ## @bar
	movq	_g@GOTPCREL(%rip), %rax
	movss	LCPI1_0(%rip), %xmm1
	movss	(%rax), %xmm0
	addss	%xmm1, %xmm0
	movd	%xmm0, %ecx
	movl	4(%rax), %edx
	movl	12(%rax), %esi
	shlq	$32, %rdx
	addq	%rcx, %rdx
	movd	%rdx, %xmm0
	addss	8(%rax), %xmm1
	movd	%xmm1, %eax
	shlq	$32, %rsi
	addq	%rax, %rsi
	movd	%rsi, %xmm1
	ret

This resolves rdar://8360454



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112343 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 01:20:38 +00:00
Dan Gohman
badcda4afa Completely disable tail calls when fast-isel is enabled, as fast-isel 
doesn't currently support dealing with this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112341 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 00:51:03 +00:00
Dan Gohman
7258df71fa Trim a #include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112340 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 00:49:13 +00:00
Dan Gohman
5bb307d5c8 Fix an index calculation thinko. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112337 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 00:39:27 +00:00
Bob Wilson
fd7fd940c3 We don't need to custom-select VLDMQ and VSTMQ anymore. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112336 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 00:20:11 +00:00
Benjamin Kramer
6cfabc7974 Update CMake build. Add newline at end of file. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112332 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-28 00:11:12 +00:00
Bob Wilson
14805e2afd When merging Thumb2 loads/stores, do not give up when the offset is one of 
the special values that for ARM would be used with IB or DA modes.  Fall
through and consider materializing a new base address is it would be
profitable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112329 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-27 23:57:52 +00:00
Owen Anderson
a0b59f6bd2 Add a prototype of a new peephole optimizing pass that uses LazyValue info to simplify PHIs and select's. 
This pass addresses the missed optimizations from PR2581 and PR4420.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112325 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-27 23:31:36 +00:00
Owen Anderson
ee61fcf98b Improve the precision of getConstant(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112323 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-27 23:29:38 +00:00