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57 Commits

Author SHA1 Message Date
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