Commit Graph

199 Commits

Author SHA1 Message Date
Evan Cheng 1b0d294de0 Expand all INSERT_VECTOR_ELT (obviously bad) for now.
llvm-svn: 27275
2006-03-31 01:30:39 +00:00
Evan Cheng d9d0bbb5ac Typo
llvm-svn: 27272
2006-03-31 00:33:57 +00:00
Evan Cheng 99d7205fba Ok for vector_shuffle mask to contain undef elements.
llvm-svn: 27271
2006-03-31 00:30:29 +00:00
Evan Cheng 7e2ff11a42 Make sure all possible shuffles are matched.
Use pshufd, pshuhw, and pshulw to shuffle v4f32 if shufps doesn't match.
Use shufps to shuffle v4f32 if pshufd, pshuhw, and pshulw don't match.

llvm-svn: 27259
2006-03-30 19:54:57 +00:00
Evan Cheng b7fedffc78 - Added some SSE2 128-bit packed integer ops.
- Added SSE2 128-bit integer pack with signed saturation ops.
- Added pshufhw and pshuflw ops.

llvm-svn: 27252
2006-03-29 23:07:14 +00:00
Evan Cheng acc336475e Need to special case splat after all. Make the second operand of splat
vector_shuffle undef.

llvm-svn: 27250
2006-03-29 19:02:40 +00:00
Evan Cheng 500ec16578 - More shuffle related bug fixes.
- Whenever possible use ops of the right packed types for vector shuffles /
  splats.

llvm-svn: 27246
2006-03-29 03:04:49 +00:00
Evan Cheng da59b0d2a8 - Only use pshufd for v4i32 vector shuffles.
- Other shuffle related fixes.

llvm-svn: 27244
2006-03-29 01:30:51 +00:00
Evan Cheng 8160fd3d42 Fixing buggy code.
llvm-svn: 27239
2006-03-28 23:41:33 +00:00
Jim Laskey 457e54efc1 Added missing paren on behalf of Ramana Radhakrishnan.
llvm-svn: 27223
2006-03-28 10:17:11 +00:00
Evan Cheng 21e5476deb Missed X86::isUNPCKHMask
llvm-svn: 27222
2006-03-28 08:27:15 +00:00
Evan Cheng 1a194a5264 * Prefer using operation of matching types. e.g unpcklpd rather than movlhps.
* Bug fixes.

llvm-svn: 27218
2006-03-28 06:50:32 +00:00
Evan Cheng 2bc3280659 - Clean up / consoladate various shuffle masks.
- Some misc. bug fixes.
- Use MOVHPDrm to load from m64 to upper half of a XMM register.

llvm-svn: 27210
2006-03-28 02:43:26 +00:00
Evan Cheng 5df75889db Model unpack lower and interleave as vector_shuffle so we can lower the
intrinsics as such.

llvm-svn: 27200
2006-03-28 00:39:58 +00:00
Evan Cheng 9b9cc4fb39 Use pcmpeq to generate vector of all ones.
llvm-svn: 27167
2006-03-27 07:00:16 +00:00
Nate Begeman ed728c1291 SelectionDAGISel can now natively handle Switch instructions, in the same
manner that the LowerSwitch LLVM to LLVM pass does: emitting a binary
search tree of basic blocks.  The new approach has several advantages:
it is faster, it generates significantly smaller code in many cases, and
it paves the way for implementing dense switch tables as a jump table by
handling switches directly in the instruction selector.

This functionality is currently only enabled on x86, but should be safe for
every target.  In anticipation of making it the default, the cfg is now
properly updated in the x86, ppc, and sparc select lowering code.

llvm-svn: 27156
2006-03-27 01:32:24 +00:00
Evan Cheng ed6184aef2 Remove X86:isZeroVector, use ISD::isBuildVectorAllZeros instead; some fixes / cleanups
llvm-svn: 27150
2006-03-26 09:53:12 +00:00
Evan Cheng 2bc0941e2a Build arbitrary vector with more than 2 distinct scalar elements with a
series of unpack and interleave ops.

llvm-svn: 27119
2006-03-25 09:37:23 +00:00
Evan Cheng 6f7d31ea50 Added 128-bit packed integer subtraction.
llvm-svn: 27096
2006-03-25 01:33:37 +00:00
Evan Cheng e7ee6a5e32 Support for scalar to vector with zero extension.
llvm-svn: 27091
2006-03-24 23:15:12 +00:00
Evan Cheng 082c8785ef Handle BUILD_VECTOR with all zero elements.
llvm-svn: 27056
2006-03-24 07:29:27 +00:00
Chris Lattner f5efddf80b Gabor points out that we can't spell. :)
llvm-svn: 27049
2006-03-24 07:12:19 +00:00
Evan Cheng a91d8a5b43 All v2f64 shuffle cases can be handled.
llvm-svn: 27044
2006-03-24 06:40:32 +00:00
Evan Cheng 2595a687da More efficient v2f64 shuffle using movlhps, movhlps, unpckhpd, and unpcklpd.
llvm-svn: 27040
2006-03-24 02:58:06 +00:00
Evan Cheng d27fb3e85e Handle more shuffle cases with SHUFP* instructions.
llvm-svn: 27024
2006-03-24 01:18:28 +00:00
Evan Cheng f842ea57bb Typo
llvm-svn: 26997
2006-03-23 20:26:04 +00:00
Evan Cheng b9b0550dc6 Add 128-bit integer vector load and add (for testing).
llvm-svn: 26967
2006-03-23 01:57:24 +00:00
Evan Cheng 021bb7c956 Added a ValueType operand to isShuffleMaskLegal(). For now, x86 will not do
64-bit vector shuffle.

llvm-svn: 26964
2006-03-22 22:07:06 +00:00
Evan Cheng bc04722860 Some clean up.
llvm-svn: 26957
2006-03-22 19:22:18 +00:00
Evan Cheng d4e1557941 - Supposely movlhps is faster / better than unpcklpd.
- Don't forget pshufd is only available with sse2.

llvm-svn: 26956
2006-03-22 19:16:21 +00:00
Evan Cheng 68ad48bd1a - Implement X86ISelLowering::isShuffleMaskLegal(). We currently only support
splat and PSHUFD cases.
- Clean up shuffle / splat matching code.

llvm-svn: 26954
2006-03-22 18:59:22 +00:00
Evan Cheng 8fdbdf20cd - VECTOR_SHUFFLE of v4i32 / v4f32 with undef second vector always matches
PSHUFD. We can make permutes entries which point to the undef pointing
  anything we want.
- Change some names to appease Chris.

llvm-svn: 26951
2006-03-22 08:01:21 +00:00
Chris Lattner f5e36c8bc0 fix a warning
llvm-svn: 26941
2006-03-22 04:18:34 +00:00
Evan Cheng d097e67544 Some splat and shuffle support.
llvm-svn: 26940
2006-03-22 02:53:00 +00:00
Evan Cheng d5e905d762 - Use movaps to store 128-bit vector integers.
- Each scalar to vector v8i16 and v16i8 is a any_extend followed by a movd.

llvm-svn: 26932
2006-03-21 23:01:21 +00:00
Chris Lattner 00f4683bf6 These targets don't support EXTRACT_VECTOR_ELT, though, in time, X86 will.
llvm-svn: 26930
2006-03-21 20:51:05 +00:00
Chris Lattner 80b6bd2746 Add a build_vector node
llvm-svn: 26895
2006-03-20 06:18:01 +00:00
Chris Lattner f7b6e7212f rename these nodes
llvm-svn: 26848
2006-03-19 01:13:28 +00:00
Evan Cheng b09a56f3a4 Darwin should use _setjmp/_longjmp instead of setjmp/longjmp.
llvm-svn: 26833
2006-03-17 20:31:41 +00:00
Chris Lattner 388fc4d9fb Disable x86 fastcc from passing args in registers
llvm-svn: 26824
2006-03-17 17:27:47 +00:00
Chris Lattner 43798850f9 Parameterize the number of integer arguments to pass in registers
llvm-svn: 26818
2006-03-17 05:10:20 +00:00
Nate Begeman bb01d4f272 Remove BRTWOWAY*
Make the PPC backend not dependent on BRTWOWAY_CC and make the branch
selector smarter about the code it generates, fixing a case in the
readme.

llvm-svn: 26814
2006-03-17 01:40:33 +00:00
Evan Cheng f75555feb9 Bug fix: condition inverted.
llvm-svn: 26804
2006-03-16 22:02:48 +00:00
Evan Cheng 20931a798e Added a way for TargetLowering to specify what values can be used as the
scale component of the target addressing mode.

llvm-svn: 26802
2006-03-16 21:47:42 +00:00
Evan Cheng af598d2461 Add LSR hooks.
llvm-svn: 26740
2006-03-13 23:18:16 +00:00
Evan Cheng adc7093fc1 Use rep/stosl; and Count 0x3; rep/stosb for memset with 4 byte aligned dest.
and variable value.
Similarly for memcpy.

llvm-svn: 26603
2006-03-07 23:29:39 +00:00
Evan Cheng 30d7b70b73 Enable Dwarf debugging info.
llvm-svn: 26581
2006-03-07 02:02:57 +00:00
Chris Lattner 9c7f50376a Copysign needs to be expanded everywhere. Note that Alpha and IA64 should
implement copysign as a native op if they have it.

llvm-svn: 26541
2006-03-05 05:08:37 +00:00
Evan Cheng 6dc73297c3 MEMSET / MEMCPY lowering bugs: we can't issue a single WORD / DWORD version of
rep/stos and rep/mov if the count is not a constant. We could do
  rep/stosl; and $count, 3; rep/stosb
For now, I will lower them to memset / memcpy calls. We will revisit this after
a little bit experiment.

Also need to take care of the trailing bytes even if the count is a constant.
Since the max. number of trailing bytes are 3, we will simply issue loads /
stores.

llvm-svn: 26517
2006-03-04 02:48:56 +00:00
Evan Cheng 084a102b17 Typo
llvm-svn: 26512
2006-03-04 01:12:00 +00:00
Chris Lattner ad3c974a77 remove the read/write port/io intrinsics.
llvm-svn: 26479
2006-03-03 00:19:58 +00:00
Evan Cheng 1926427351 Vector op lowering.
llvm-svn: 26438
2006-03-01 01:11:20 +00:00
Evan Cheng 994700101e Added a common about the need for X86ISD::Wrapper.
llvm-svn: 26372
2006-02-25 09:55:19 +00:00
Evan Cheng e0ed6ec13f - Clean up the lowering and selection code of ConstantPool, GlobalAddress,
and ExternalSymbol.
- Use C++ code (rather than tblgen'd selection code) to match the above
  mentioned leaf nodes. Do not mutate and nodes and do not record the
  selection in CodeGenMap. These nodes should be safe to duplicate. This is
  a performance win.

llvm-svn: 26335
2006-02-23 20:41:18 +00:00
Evan Cheng 1f342c2884 PIC related bug fixes.
1. Various asm printer bug.
2. Lowering bug. Now TargetGlobalAddress is wrapped in X86ISD::TGAWrapper.

llvm-svn: 26324
2006-02-23 02:43:52 +00:00
Evan Cheng 73136dfecc - Added option -relocation-model to set relocation model. Valid values include static, pic,
dynamic-no-pic, and default.
PPC and x86 default is dynamic-no-pic for Darwin, pic for others.
- Removed options -enable-pic and -ppc-static.

llvm-svn: 26315
2006-02-22 20:19:42 +00:00
Evan Cheng 9e252e3bcf Added MMX, SSE1, and SSE2 vector instructions and some simple patterns.
Fixed some existing bugs (wrong predicates, prefixes) at the same time.

llvm-svn: 26310
2006-02-22 02:26:30 +00:00
Chris Lattner 7ad77dfc2a split register class handling from explicit physreg handling.
llvm-svn: 26308
2006-02-22 00:56:39 +00:00
Chris Lattner 7bb4696dc3 Updates to match change of getRegForInlineAsmConstraint prototype
llvm-svn: 26305
2006-02-21 23:11:00 +00:00
Evan Cheng d13778eb30 If SSE3 is available, promote FP_TO_UINT i32 to FP_TO_SINT i64 to take
advantage of fisttpll.

llvm-svn: 26288
2006-02-18 07:26:17 +00:00
Evan Cheng 5588de9415 x86 / Darwin PIC support.
llvm-svn: 26273
2006-02-18 00:15:05 +00:00
Chris Lattner 07a2677e43 unbreak the build
llvm-svn: 26260
2006-02-17 07:09:27 +00:00
Evan Cheng 593bea73ba Unbreak x86 be
llvm-svn: 26259
2006-02-17 07:01:52 +00:00
Nate Begeman 5965bd19f8 kill ADD_PARTS & SUB_PARTS and replace them with fancy new ADDC, ADDE, SUBC
and SUBE nodes that actually expose what's going on and allow for
significant simplifications in the targets.

llvm-svn: 26255
2006-02-17 05:43:56 +00:00
Nate Begeman 7e5496d5fe Kill the x86 pattern isel. boom.
llvm-svn: 26246
2006-02-17 00:03:04 +00:00
Nate Begeman 8a77efe4f7 Rework the SelectionDAG-based implementations of SimplifyDemandedBits
and ComputeMaskedBits to match the new improved versions in instcombine.
Tested against all of multisource/benchmarks on ppc.

llvm-svn: 26238
2006-02-16 21:11:51 +00:00
Evan Cheng 03c1e6f48e A bit more memset / memcpy optimization.
Turns them into calls to memset / memcpy if 1) buffer(s) are not DWORD aligned,
2) size is not known to be greater or equal to some minimum value (currently 128).

llvm-svn: 26224
2006-02-16 00:21:07 +00:00
Evan Cheng 4b40a42653 Rename maxStoresPerMemSet to maxStoresPerMemset, etc.
llvm-svn: 26174
2006-02-14 08:38:30 +00:00
Evan Cheng 6a37456d73 Set maxStoresPerMemSet to 16. Ditto for maxStoresPerMemCpy and
maxStoresPerMemMove. Although the last one is not used.

llvm-svn: 26172
2006-02-14 08:25:08 +00:00
Chris Lattner 62c3484e43 Switch targets over to using SelectionDAG::getCALLSEQ_START to create
CALLSEQ_START nodes.

llvm-svn: 26143
2006-02-13 09:00:43 +00:00
Evan Cheng 5a76680de1 Darwin ABI issues: weak, linkonce, etc. dynamic-no-pic support is complete.
Also fixed a function stub bug. Added weak and linkonce support for
x86 Linux.

llvm-svn: 26038
2006-02-07 08:38:37 +00:00
Evan Cheng 11613a5219 Separate FILD and FILD_FLAG, the later is only used for SSE2. It produces a
flag so it can be flagged to a FST.

llvm-svn: 25953
2006-02-04 02:20:30 +00:00
Evan Cheng d8fba3a1ee Fix a erroneous comment.
llvm-svn: 25894
2006-02-02 00:28:23 +00:00
Nate Begeman 7e7f439f85 Fix some of the stuff in the PPC README file, and clean up legalization
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.

llvm-svn: 25875
2006-02-01 07:19:44 +00:00
Evan Cheng a24617f5d4 Return's chain should be matching either the chain produced by the
value or the chain going into the load.

llvm-svn: 25863
2006-02-01 01:19:32 +00:00
Evan Cheng e1ce4d7115 When folding a load into a return of SSE value, check the chain to
ensure the memory location has not been clobbered.

llvm-svn: 25861
2006-02-01 00:20:21 +00:00
Evan Cheng 5659ca8f47 Be smarter about whether to store the SSE return value in memory. If
it is already available in memory, do a fld directly from there.

llvm-svn: 25859
2006-01-31 23:19:54 +00:00
Evan Cheng 72d5c256c9 - Allow XMM load (for scalar use) to be folded into ANDP* and XORP*.
- Use XORP* to implement fneg.

llvm-svn: 25857
2006-01-31 22:28:30 +00:00
Chris Lattner c642aa5e1c * Fix 80-column violations
* Rename hasSSE -> hasSSE1 to avoid my continual confusion with 'has any SSE'.
* Add inline asm constraint specification.

llvm-svn: 25854
2006-01-31 19:43:35 +00:00
Evan Cheng 2dd217b88f Added custom lowering of fabs
llvm-svn: 25831
2006-01-31 03:14:29 +00:00
Evan Cheng 45df7f84ff Don't generate complex sequence for SETOLE, SETOLT, SETULT, and SETUGT. Flip
the order of the compare operands and generate SETOGT, SETOGE, SETUGE, and
SETULE instead.

llvm-svn: 25824
2006-01-30 23:41:35 +00:00
Evan Cheng 08390f6a21 i64 -> f32, f32 -> i64 and some clean up.
llvm-svn: 25818
2006-01-30 22:13:22 +00:00
Evan Cheng 5b97fcf0f5 Always use FP stack instructions to perform i64 to f64 as well as f64 to i64
conversions. SSE does not have instructions to handle these tasks.

llvm-svn: 25817
2006-01-30 08:02:57 +00:00
Chris Lattner f0b24d2dc0 Move MaskedValueIsZero from the DAGCombiner to the TargetLowering interface,making isMaskedValueZeroForTargetNode simpler, and useable from other partsof the compiler.
llvm-svn: 25803
2006-01-30 04:09:27 +00:00
Chris Lattner c6fa0282d2 adjust prototype
llvm-svn: 25798
2006-01-30 03:49:07 +00:00
Chris Lattner 132177e103 The FP stack doesn't support UNDEF, ask the legalizer to legalize it
instead of lying and saying we have it.

llvm-svn: 25775
2006-01-29 06:44:22 +00:00
Chris Lattner 61c9a8e942 Targets all now request ConstantFP to be legalized into TargetConstantFP.
'fpimm' in .td files is now TargetConstantFP.

llvm-svn: 25771
2006-01-29 06:26:08 +00:00
Chris Lattner ccd2a20c4b silence a warning
llvm-svn: 25745
2006-01-28 10:34:47 +00:00
Evan Cheng a814f0b31c Bye bye Pattern ISel, hello DAG ISel.
llvm-svn: 25700
2006-01-27 21:26:54 +00:00
Nate Begeman 8c47c3a3b1 Remove TLI.LowerReturnTo, and just let targets custom lower ISD::RET for
the same functionality.  This addresses another piece of bug 680.  Next,
on to fixing Alpha VAARG, which I broke last time.

llvm-svn: 25696
2006-01-27 21:09:22 +00:00
Evan Cheng cde9e30bc6 x86 CPU detection and proper subtarget support
llvm-svn: 25679
2006-01-27 08:10:46 +00:00
Evan Cheng 944d1e91ea When trying to fold X86::SETCC into a Select, make a copy if it has more than
one use. This allows more CMOV instructions.

llvm-svn: 25634
2006-01-26 02:13:10 +00:00
Nate Begeman e74795cd70 First part of bug 680:
Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same
way as everything else.

llvm-svn: 25606
2006-01-25 18:21:52 +00:00
Evan Cheng 83eeefbbd1 X86 prefer scheduling for reduced register pressure.
llvm-svn: 25602
2006-01-25 09:15:17 +00:00
Evan Cheng aff0800fd1 Fix a selectcc lowering bug. Make a copy of X86ISD::CMP when folding it.
llvm-svn: 25596
2006-01-25 09:05:09 +00:00
Chris Lattner 27d30a5f42 use ESP directly, not a copy of ESP into some other register for fastcc calls
llvm-svn: 25584
2006-01-24 06:14:44 +00:00
Chris Lattner 6f33eaeb81 Emit the copies out of call return registers *after* the ISD::CALLSEQ_END
node, fixing fastcc and the case where a function has a frame pointer due
to dynamic allocas.

llvm-svn: 25580
2006-01-24 05:17:12 +00:00
Chris Lattner 335b46dd20 LowerReturn now doesn't have to handle f32 returns.
llvm-svn: 25484
2006-01-20 18:41:25 +00:00
Evan Cheng 3d2cc7e2e9 Avoid generating a redundant setcc.
llvm-svn: 25457
2006-01-19 08:52:46 +00:00
Evan Cheng 267ba5965e A obvious typo
llvm-svn: 25435
2006-01-19 01:46:14 +00:00