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Author SHA1 Message Date
Chris Lattner
681ccf40d7 rename test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112234 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 22:20:47 +00:00
Chris Lattner
26dbe7ec18 optimize "integer extraction out of the middle of a vector" as produced 
by SRoA.  This is part of rdar://7892780, but needs another xform to
expose this.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112232 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 22:14:59 +00:00
Jim Grosbach
1ab3f16f06 tidy up a bit. no functional change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112228 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 21:56:30 +00:00
Chris Lattner
e5a1426174 optimize bitcast(trunc(bitcast(x))) where the result is a float and 'x' 
is a vector to be a vector element extraction.  This allows clang to
compile:

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

into:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	movd	%xmm0, %rax
	shrq	$32, %rax
	movd	%eax, %xmm2
	addss	%xmm0, %xmm2
	movapd	%xmm1, %xmm3
	addss	%xmm2, %xmm3
	movd	%xmm1, %rax
	shrq	$32, %rax
	movd	%eax, %xmm0
	addss	%xmm3, %xmm0
	ret

instead of:

_foo:                                   ## @foo
## BB#0:                                ## %entry
	movd	%xmm0, %rax
	movd	%eax, %xmm0
	shrq	$32, %rax
	movd	%eax, %xmm2
	addss	%xmm0, %xmm2
	movd	%xmm1, %rax
	movd	%eax, %xmm1
	addss	%xmm2, %xmm1
	shrq	$32, %rax
	movd	%eax, %xmm0
	addss	%xmm1, %xmm0
	ret

... eliminating half of the horribleness.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112227 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 21:55:42 +00:00
Chris Lattner
a6140a1444 filecheckize 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112225 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 21:51:41 +00:00
Chris Lattner
5333459a1e rename test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112224 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 21:50:56 +00:00
Chris Lattner
dee1da0dc3 add m_BitCast for matching a bitcast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112222 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 21:35:52 +00:00
Jim Grosbach
b0fa9932cc Turn off the scavenging based frame reg reuse briefly to measure whether it's 
still having a significant effect. It shouldn't be now that the pre-RA
virtual base reg stuff is in. Assuming that's valididated by the nightly
testers, we can simplify a lot of the PEI frame index code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112220 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 21:29:54 +00:00
Bruno Cardoso Lopes
af57738f00 zap the now unused MVT::getIntVectorWithNumElements 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112218 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 20:53:12 +00:00
Devang Patel
e130d78ee1 Speculatively revert r112207. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112216 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 20:33:42 +00:00
Devang Patel
8f09beacb1 80 col. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112215 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 20:32:32 +00:00
Devang Patel
f2ec7ae279 Update DanglingDebugInfo so that it can be used to track llvm.dbg.declare also. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112213 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 20:06:46 +00:00
Bob Wilson
01ba461af7 Use pseudo instructions for VST3. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112208 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 18:51:29 +00:00
Devang Patel
9d0796a0e0 Donot forget to resolve dangling debug info in a case where virtual register, used for a value, is initialized after a dbg intrinsic is seen. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112207 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 18:36:14 +00:00
Bill Wendling
6165e87824 Reapply r112176 without removing the other CMN patterns (that was unintentional). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112206 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 18:33:51 +00:00
Dan Gohman
446c6c41f5 Experimental clang-based code-completion support for vim. This currently 
depends on some clang patches which are not yet upstream.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112204 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 18:12:22 +00:00
Benjamin Kramer
4ba1b3074b MCELF: Fix a thinko of mine. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112203 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 18:12:04 +00:00
Bob Wilson
3b7bbfd36c Fix comment typos. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112202 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 18:08:11 +00:00
Devang Patel
767b5b6227 Fix prototypes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112200 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 17:47:45 +00:00
Owen Anderson
62efd3b385 Make JumpThreading smart enough to properly thread StrSwitch when it's compiled with clang++. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112198 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 17:40:24 +00:00
Benjamin Kramer
63d37b9322 MCELF: Compensate for the addend on i386. Patch by Roman Divacky, with some cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112197 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 17:23:02 +00:00
Jim Grosbach
9f134b5713 Restrict the register to tGPR to make sure the str instruction will be 
encodable as a 16-bit wide instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112195 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 17:02:47 +00:00
Dan Gohman
4b7dff9a79 Revert r112176; it broke test/CodeGen/Thumb2/thumb2-cmn.ll. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112191 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 15:50:25 +00:00
Dan Gohman
6cb8c23db1 Reapply r112091 and r111922, support for metadata linking, with a 
fix: add a flag to MapValue and friends which indicates whether
any module-level mappings are being made. In the common case of
inlining, no module-level mappings are needed, so MapValue doesn't
need to examine non-function-local metadata, which can be very
expensive in the case of a large module with really deep metadata
(e.g. a large C++ program compiled with -g).

This flag is a little awkward; perhaps eventually it can be moved
into the ClonedCodeInfo class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112190 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 15:41:53 +00:00
Benjamin Kramer
837bccd052 StringRef::compare_numeric also differed from StringRef::compare for characters > 127. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112189 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 15:25:35 +00:00
Benjamin Kramer
0043e35b82 Do unsigned char comparisons in StringRef::compare_lower to be more consistent with compare in corner cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112185 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 14:21:08 +00:00
Bill Wendling
01b1e1c958 There seems to be a (potential) hardware bug with the CMN instruction and 
comparison with 0. These two pieces of code should give identical results:

  rsbs r1, r1, 0
  cmp  r0, r1
  mov  r0, #0
  it   ls
  mov  r0, #1

and:

  cmn  r0, r1
  mov  r0, #0
  it   ls
  mov  r0, #1

However, the CMN gives the *opposite* result when r1 is 0. This is because the
carry flag is set in the CMP case but not in the CMN case. In short, the CMP
instruction doesn't perform a truncate of the (logical) NOT of 0 plus the value
of r0 and the carry bit (because the "carry bit" parameter to AddWithCarry is
defined as 1 in this case, the carry flag will always be set when r0 >= 0). The
CMN instruction doesn't perform a NOT of 0 so there is never a "carry" when this
AddWithCarry is performed (because the "carry bit" parameter to AddWithCarry is
defined as 0).

The AddWithCarry in the CMP case seems to be relying upon the identity:

  ~x + 1 = -x

However when x is 0 and unsigned, this doesn't hold:

   x = 0
  ~x = 0xFFFF FFFF
  ~x + 1 = 0x1 0000 0000
  (-x = 0) != (0x1 0000 0000 = ~x + 1)

Therefore, we should disable *all* versions of CMN, especially when comparing
against zero, until we can limit when the CMN instruction is used (when we know
that the RHS is not 0) or when we have a hardware fix for this.

(See the ARM docs for the "AddWithCarry" pseudo-code.)

This is related to <rdar://problem/7569620>.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112176 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 09:07:33 +00:00
Chris Lattner
341fa09a3c Add a hackaround for PR7993 which is causing failures on x86 builders that lack sse2. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112175 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 06:57:07 +00:00
Chris Lattner
4bbdb4c78c I think enough general codegen bugs are fixed to allow this to work 
on random hosts, lets see!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112172 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 05:52:42 +00:00
Chris Lattner
8306968c14 implement SplitVecOp_CONCAT_VECTORS, fixing the included testcase with SSE1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112171 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 05:51:22 +00:00
Bob Wilson
70e48b23a3 Use pseudo instructions for VST1d64Q. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112170 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 05:33:30 +00:00
Chris Lattner
8de3bdb16a Make sure this forces the x86 targets 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112169 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 05:25:05 +00:00
Chris Lattner
97a2a56f43 fix sse1 only codegen in x86-64 mode, which is something we 
apparently try to support.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112168 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 05:24:29 +00:00
Daniel Dunbar
076137c424 Revert r111922, "MapValue support for MDNodes. This is similar to r109117, 
except ...", it is causing *massive* performance regressions when building Clang
with itself (-O3 -g).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112158 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 03:48:11 +00:00
Daniel Dunbar
fd406f1ee2 Revert r112091, "Remap metadata attached to instructions when remapping 
individual ...", which depends on r111922, which I am reverting.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112157 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 03:48:08 +00:00
Chris Lattner
6dabd9dba0 zap dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112155 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 02:57:35 +00:00
Oscar Fuentes
4d2d099e27 Updated CMake library dependencies. Removed unnecessary component name 
from llvm-link/CMakeLists.txt

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112153 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 02:29:53 +00:00
John McCall
4672f0f61c SmallVector's growth policies don't like starting from zero capacity. 
I think there are good reasons to change this, but in the interests
of short-term stability, make SmallVector<...,0> reserve non-zero
capacity in its constructors.  This means that SmallVector<...,0>
uses more memory than SmallVector<...,1> and should really only be
used (unless/until this workaround is removed) by clients that
care about using SmallVector with an incomplete type.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112147 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 02:11:48 +00:00
Chris Lattner
f88c23597a remove dead proto 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112131 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 01:14:37 +00:00
Chris Lattner
2a36545176 zap dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112130 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 01:13:54 +00:00
Bruno Cardoso Lopes
e943c15621 Fix PR7748 without using microsoft extensions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112128 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 01:02:53 +00:00
Jim Grosbach
ae47c6d69e Enable pre-RA virtual frame base register allocation. rdar://8277890 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112127 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 00:58:06 +00:00
Dan Gohman
b4e3cda118 Rewrite ExtractGV, removing a bunch of stuff that didn't fully work, 
and was over-complicated, and replacing it with a simple implementation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112120 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 00:22:55 +00:00
Bob Wilson
2ac124c561 Revert svn 107892 (with changes to work with trunk). It caused a crash if 
a VLD result was not used (Radar 8355607).  It should also fix pr7988, but
I haven't verified that yet.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112118 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-26 00:13:36 +00:00
Chris Lattner
c87a6d4fb0 temporarily disable this, which started failing on the llvm-i686-linux 
builder.  I will investigate tonight.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112113 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 23:43:14 +00:00
Dan Gohman
44f95335dd Convert llvm-extract to use lazy loading. This makes it substantially 
faster on large modules.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112110 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 23:33:07 +00:00
Chris Lattner
1a68958d3d we should pattern match the SSE complex arithmetic ops. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112109 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 23:31:42 +00:00
Bob Wilson
709d59255a Start converting NEON load/stores to use pseudo instructions, beginning here 
with the VST4 instructions.  Until after register allocation, we want to
represent sets of adjacent registers by a single super-register.  These
VST4 pseudo instructions have a single QQ or QQQQ source register operand.
They get expanded to the real VST4 instructions with 4 separate D register
operands.  Once this conversion is complete, we'll be able to remove the
NEONPreAllocPass and avoid some fragile and hacky code elsewhere.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112108 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 23:27:42 +00:00
John McCall
5b5f7260a0 Provide an explicit specialization of SmallVector at N=0 which does 
not require its type argument to be complete if no members are
actually used.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112106 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 23:11:24 +00:00
Chris Lattner
cd11e9db35 add a specialization for the MVT form of getTypeAction, since it is 
trivial.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112105 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-08-25 23:05:45 +00:00