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231 Commits

Author SHA1 Message Date
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
Evan Cheng 621674a19d SRA shift amount must be in i8 
llvm-svn: 25416
 2006-01-18 09:26:46 +00:00
Evan Cheng 4b3774e0a2 If a call return type is i1, insert a truncate from X86::AL to i1. 
llvm-svn: 25415
 2006-01-18 08:08:38 +00:00
Evan Cheng feaed4d107 Fix lowering of calls which return f32 values. 
llvm-svn: 25413
 2006-01-17 21:58:21 +00:00
Evan Cheng 0d5b69f734 SSE does not support i64 SINT_TO_FP (FP stack doesn't either, but we custom 
expand it), so ask legalizer to expand i32 UINT_TO_FP.

llvm-svn: 25386
 2006-01-17 02:32:49 +00:00
Evan Cheng 561881f30a Added a FIXME comment about why FST is currently flagged to fpGETRESULT. 
llvm-svn: 25381
 2006-01-17 00:37:42 +00:00
Evan Cheng bec9d720b0 Bug fixes: fpGETRESULT should produces a flag result and X86ISD::FST should 
read a flag.

llvm-svn: 25378
 2006-01-17 00:19:47 +00:00
Evan Cheng 911c68d7a8 Fix FP_TO_INT**_IN_MEM lowering. 
llvm-svn: 25368
 2006-01-16 21:21:29 +00:00
Chris Lattner 78c358d1ad Use the default lowering of ISD::DYNAMIC_STACKALLOC, delete now dead code. 
llvm-svn: 25333
 2006-01-15 09:00:21 +00:00
Nate Begeman 2fba8a3aaa bswap implementation 
llvm-svn: 25312
 2006-01-14 03:14:10 +00:00
Evan Cheng dba84bbc1e LHS = X86ISD::CMOVcc LHS, RHS means LHS = RHS if cc. So the operands must be 
flipped around.

llvm-svn: 25290
 2006-01-13 19:51:46 +00:00
Chris Lattner 1a8d918ef1 Enable X86 support for savestack/restorestack 
llvm-svn: 25278
 2006-01-13 18:00:54 +00:00
Chris Lattner 8e2f52e645 expand unsupported stacksave/stackrestore nodes 
llvm-svn: 25272
 2006-01-13 02:42:53 +00:00
Evan Cheng d7faa4bae1 More typo's. I need new eye glasses... 
llvm-svn: 25261
 2006-01-13 01:17:24 +00:00
Evan Cheng 731423f36a Oops. Typo. 
llvm-svn: 25260
 2006-01-13 01:06:49 +00:00
Evan Cheng fb22e86c4d Fix a SETCC / BRCOND folding bug. 
llvm-svn: 25259
 2006-01-13 01:03:02 +00:00
Evan Cheng 6305e50ee1 Fix sint_to_fp (fild*) support. 
llvm-svn: 25257
 2006-01-12 22:54:21 +00:00
Evan Cheng 84dc9b55f0 X86ISD::SETCC (e.g. SETEr) produces a flag (so multiple SETCC can be 
linked together).

llvm-svn: 25247
 2006-01-12 08:27:59 +00:00
Evan Cheng b94db9e9a4 * Materialize GlobalAddress and ExternalSym with MOV32ri rather than 
LEA32r.
* Do not lower GlobalAddress to TargetGlobalAddress. Let isel does it.

llvm-svn: 25246
 2006-01-12 07:56:47 +00:00
Evan Cheng 6d2ab04463 Added ROTL and ROTR. 
llvm-svn: 25232
 2006-01-11 23:20:05 +00:00
Evan Cheng ae986f1f1e Support for MEMCPY and MEMSET. 
llvm-svn: 25226
 2006-01-11 22:15:48 +00:00
Nate Begeman 1b8121b227 Add bswap, rotl, and rotr nodes 
Add dag combiner code to recognize rotl, rotr
Add ppc code to match rotl

Targets should add rotl/rotr patterns if they have them

llvm-svn: 25222
 2006-01-11 21:21:00 +00:00
Evan Cheng bc7a0f44bd * Add special entry code main() (to set x87 to 64-bit precision). 
* Allow a register node as SelectAddr() base.
* ExternalSymbol -> TargetExternalSymbol as direct function callee.
* Use X86::ESP register rather than CopyFromReg(X86::ESP) as stack ptr for
  call parmater passing.

llvm-svn: 25207
 2006-01-11 06:09:51 +00:00
Evan Cheng 339edad775 SSE cmov support. 
llvm-svn: 25190
 2006-01-11 00:33:36 +00:00
Evan Cheng 73a1ad975e FP_TO_INT*_IN_MEM and x87 FP Select support. 
llvm-svn: 25188
 2006-01-10 20:26:56 +00:00
Evan Cheng 12181af0c7 More typos 
llvm-svn: 25162
 2006-01-09 22:29:54 +00:00
Evan Cheng 77fa9195cd typo 
llvm-svn: 25160
 2006-01-09 20:49:21 +00:00
Evan Cheng 9c249c37f8 Support for ADD_PARTS, SUB_PARTS, SHL_PARTS, SHR_PARTS, and SRA_PARTS. 
llvm-svn: 25158
 2006-01-09 18:33:28 +00:00
Evan Cheng 172fce7050 * Fast call support. 
* FP cmp, setcc, etc.

llvm-svn: 25117
 2006-01-06 00:43:03 +00:00
Jim Laskey deeafa0f00 Had expand logic backward. 
llvm-svn: 25105
 2006-01-05 01:47:43 +00:00
Jim Laskey 762e9ec06c Added initial support for DEBUG_LABEL allowing debug specific labels to be 
inserted in the code.

llvm-svn: 25104
 2006-01-05 01:25:28 +00:00
Evan Cheng 45e19098a6 DAG based isel call support. 
llvm-svn: 25103
 2006-01-05 00:27:02 +00:00
Chris Lattner 8258489ca4 Fix a problem duraid pointed out to me compiling kc++ with -enable-x86-fastcc 
llvm-svn: 25024
 2005-12-27 03:02:18 +00:00
Evan Cheng 5c59d49630 More X86 floating point patterns. 
llvm-svn: 24990
 2005-12-23 07:31:11 +00:00
Chris Lattner 30107e65c8 make sure bit_convert's are expanded 
llvm-svn: 24979
 2005-12-23 05:15:23 +00:00
Evan Cheng 9cdc16c6d3 * Fix a GlobalAddress lowering bug. 
* Teach DAG combiner about X86ISD::SETCC by adding a TargetLowering hook.

llvm-svn: 24921
 2005-12-21 23:05:39 +00:00
Jim Laskey 9e296bee9a Disengage DEBUG_LOC from non-PPC targets. 
llvm-svn: 24919
 2005-12-21 20:51:37 +00:00
Evan Cheng c1583dbd63 * Added support for X86 RET with an additional operand to specify number of 
bytes to pop off stack.
* Added support for X86 SETCC.

llvm-svn: 24917
 2005-12-21 20:21:51 +00:00
Evan Cheng a74ce62746 * Added lowering hook for external weak global address. It inserts a load 
for Darwin.
* Added lowering hook for ISD::RET. It inserts CopyToRegs for the return
  value (or store / fld / copy to ST(0) for floating point value). This
  eliminate the need to write C++ code to handle RET with variable number
  of operands.

llvm-svn: 24888
 2005-12-21 02:39:21 +00:00
Evan Cheng 6af02635a7 Added a hook to print out names of target specific DAG nodes. 
llvm-svn: 24877
 2005-12-20 06:22:03 +00:00
Evan Cheng 6fc31046aa X86 conditional branch support. 
llvm-svn: 24870
 2005-12-19 23:12:38 +00:00
Evan Cheng f3b16bc5a0 Remove a few lines of dead code. 
llvm-svn: 24768
 2005-12-17 07:18:44 +00:00
Evan Cheng 225a4d0d6d X86 lowers SELECT to a cmp / test followed by a conditional move. 
llvm-svn: 24754
 2005-12-17 01:21:05 +00:00
Evan Cheng 74151ba279 * Promote all 1 bit entities to 8 bit. 
* Handling extload (1 bit -> 8 bit) and remove C++ code that handle 1 bit
zextload.

llvm-svn: 24726
 2005-12-15 19:49:23 +00:00
Chris Lattner 3225733e65 X86 doesn't support sextinreg for 8-bit things either. 
llvm-svn: 24631
 2005-12-07 17:59:14 +00:00
Chris Lattner 9c415364cf No targets support line number info yet. 
llvm-svn: 24513
 2005-11-29 06:16:21 +00:00
Chris Lattner 6c1ca888d4 Lower READCYCLECOUNTER correctly, preserving the chain result 
llvm-svn: 24438
 2005-11-20 22:57:19 +00:00
Chris Lattner 6df9e11989 use chain operands to ensure the copies don't wander from the rdtsc instruction. 
llvm-svn: 24434
 2005-11-20 22:01:40 +00:00
Andrew Lenharth 0bf68ae434 The second patch of X86 support for read cycle counter. 
llvm-svn: 24430
 2005-11-20 21:41:10 +00:00
Chris Lattner 76ac068568 Separate X86ISelLowering stuff out from the X86ISelPattern.cpp file. Patch 
contributed by Evan Cheng.

llvm-svn: 24358
 2005-11-15 00:40:23 +00:00