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114 Commits

Author SHA1 Message Date
Chris Lattner
44d9b9bb86 The FP stack doesn't support UNDEF, ask the legalizer to legalize it 
instead of lying and saying we have it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25775 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:44:22 +00:00
Chris Lattner
a54aa94197 Targets all now request ConstantFP to be legalized into TargetConstantFP. 
'fpimm' in .td files is now TargetConstantFP.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25771 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:26:08 +00:00
Chris Lattner
6b2469c1ad silence a warning 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25745 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 10:34:47 +00:00
Evan Cheng
8e44f0756f Bye bye Pattern ISel, hello DAG ISel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25700 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 21:26:54 +00:00
Nate Begeman
ee625573b5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25696 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 21:09:22 +00:00
Evan Cheng
559806f575 x86 CPU detection and proper subtarget support 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25679 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 08:10:46 +00:00
Evan Cheng
9bba894596 When trying to fold X86::SETCC into a Select, make a copy if it has more than 
one use. This allows more CMOV instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25634 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-26 02:13:10 +00:00
Nate Begeman
acc398c195 First part of bug 680: 
Remove TLI.LowerVA* and replace it with SDNodes that are lowered the same
way as everything else.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25606 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-25 18:21:52 +00:00
Evan Cheng
0b2afbd58a X86 prefer scheduling for reduced register pressure. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25602 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-25 09:15:17 +00:00
Evan Cheng
0d718e9afc Fix a selectcc lowering bug. Make a copy of X86ISD::CMP when folding it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25596 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-25 09:05:09 +00:00
Chris Lattner
91cacc810b use ESP directly, not a copy of ESP into some other register for fastcc calls 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25584 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-24 06:14:44 +00:00
Chris Lattner
af63bb03c5 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25580 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-24 05:17:12 +00:00
Chris Lattner
1f16ff6f0a LowerReturn now doesn't have to handle f32 returns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25484 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-20 18:41:25 +00:00
Evan Cheng
dc8d2ab3e9 Avoid generating a redundant setcc. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25457 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-19 08:52:46 +00:00
Evan Cheng
b7b5706340 A obvious typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25435 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-19 01:46:14 +00:00
Evan Cheng
99fa0a102a SRA shift amount must be in i8 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25416 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-18 09:26:46 +00:00
Evan Cheng
68e5d084f1 If a call return type is i1, insert a truncate from X86::AL to i1. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25415 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-18 08:08:38 +00:00
Evan Cheng
357c58efde Fix lowering of calls which return f32 values. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25413 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-17 21:58:21 +00:00
Evan Cheng
6892f28e99 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25386 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-17 02:32:49 +00:00
Evan Cheng
2059f884aa Added a FIXME comment about why FST is currently flagged to fpGETRESULT. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25381 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-17 00:37:42 +00:00
Evan Cheng
42ef0bc6fb Bug fixes: fpGETRESULT should produces a flag result and X86ISD::FST should 
read a flag.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25378 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-17 00:19:47 +00:00
Evan Cheng
0cc3945efe Fix FP_TO_INT**_IN_MEM lowering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25368 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-16 21:21:29 +00:00
Chris Lattner
e112552b5a Use the default lowering of ISD::DYNAMIC_STACKALLOC, delete now dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25333 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-15 09:00:21 +00:00
Nate Begeman
d88fc03602 bswap implementation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25312 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-14 03:14:10 +00:00
Evan Cheng
e90da97f3e LHS = X86ISD::CMOVcc LHS, RHS means LHS = RHS if cc. So the operands must be 
flipped around.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25290 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 19:51:46 +00:00
Chris Lattner
9edba7605e Enable X86 support for savestack/restorestack 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25278 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 18:00:54 +00:00
Chris Lattner
b99329e8a0 expand unsupported stacksave/stackrestore nodes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25272 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 02:42:53 +00:00
Evan Cheng
80ebe38118 More typo's. I need new eye glasses... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25261 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 01:17:24 +00:00
Evan Cheng
189d01e8cc Oops. Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25260 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 01:06:49 +00:00
Evan Cheng
1bcee3602e Fix a SETCC / BRCOND folding bug. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25259 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-13 01:03:02 +00:00
Evan Cheng
a3195e8643 Fix sint_to_fp (fild*) support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25257 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-12 22:54:21 +00:00
Evan Cheng
5ee4ccce5b X86ISD::SETCC (e.g. SETEr) produces a flag (so multiple SETCC can be 
linked together).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25247 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-12 08:27:59 +00:00
Evan Cheng
002fe9baf2 * Materialize GlobalAddress and ExternalSym with MOV32ri rather than 
LEA32r.
* Do not lower GlobalAddress to TargetGlobalAddress. Let isel does it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25246 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-12 07:56:47 +00:00
Evan Cheng
eb422a7234 Added ROTL and ROTR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25232 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-11 23:20:05 +00:00
Evan Cheng
67f92a7649 Support for MEMCPY and MEMSET. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25226 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-11 22:15:48 +00:00
Nate Begeman
35ef913ec2 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


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25222 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-11 21:21:00 +00:00
Evan Cheng
8700e14ba1 * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25207 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-11 06:09:51 +00:00
Evan Cheng
4a46080fe0 SSE cmov support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25190 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-11 00:33:36 +00:00
Evan Cheng
aaca22ca91 FP_TO_INT*_IN_MEM and x87 FP Select support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25188 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-10 20:26:56 +00:00
Evan Cheng
910cd3cfa2 More typos 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25162 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-09 22:29:54 +00:00
Evan Cheng
82a24b9813 typo 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25160 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-09 20:49:21 +00:00
Evan Cheng
e3413160ca Support for ADD_PARTS, SUB_PARTS, SHL_PARTS, SHR_PARTS, and SRA_PARTS. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25158 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-09 18:33:28 +00:00
Evan Cheng
d9558e0ba6 * Fast call support. 
* FP cmp, setcc, etc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25117 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-06 00:43:03 +00:00
Jim Laskey
e0bce71c42 Had expand logic backward. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25105 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-05 01:47:43 +00:00
Jim Laskey
abf6d1784b Added initial support for DEBUG_LABEL allowing debug specific labels to be 
inserted in the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25104 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-05 01:25:28 +00:00
Evan Cheng
d90eb7fb24 DAG based isel call support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25103 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-05 00:27:02 +00:00
Chris Lattner
f31d193cce Fix a problem duraid pointed out to me compiling kc++ with -enable-x86-fastcc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25024 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-27 03:02:18 +00:00
Evan Cheng
38bcbaf23e More X86 floating point patterns. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24990 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 07:31:11 +00:00
Chris Lattner
21f66859e4 make sure bit_convert's are expanded 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24979 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-23 05:15:23 +00:00
Evan Cheng
3a03ebb377 * Fix a GlobalAddress lowering bug. 
* Teach DAG combiner about X86ISD::SETCC by adding a TargetLowering hook.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24921 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-21 23:05:39 +00:00
Jim Laskey
e81aecbae6 Disengage DEBUG_LOC from non-PPC targets. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24919 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-21 20:51:37 +00:00
Evan Cheng
d5781fca4f * Added support for X86 RET with an additional operand to specify number of 
bytes to pop off stack.
* Added support for X86 SETCC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24917 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-21 20:21:51 +00:00
Evan Cheng
b077b842b6 * 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24888 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-21 02:39:21 +00:00
Evan Cheng
7226158d7e Added a hook to print out names of target specific DAG nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24877 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-20 06:22:03 +00:00
Evan Cheng
898101c15f X86 conditional branch support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24870 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-19 23:12:38 +00:00
Evan Cheng
433dbdaa63 Remove a few lines of dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24768 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-17 07:18:44 +00:00
Evan Cheng
7df96d6672 X86 lowers SELECT to a cmp / test followed by a conditional move. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24754 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-17 01:21:05 +00:00
Evan Cheng
cb17bac3a3 * Promote all 1 bit entities to 8 bit. 
* Handling extload (1 bit -> 8 bit) and remove C++ code that handle 1 bit
zextload.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24726 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-15 19:49:23 +00:00
Chris Lattner
e80242a948 X86 doesn't support sextinreg for 8-bit things either. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24631 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-12-07 17:59:14 +00:00
Chris Lattner
f73bae1b73 No targets support line number info yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24513 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-29 06:16:21 +00:00
Chris Lattner
81f803df80 Lower READCYCLECOUNTER correctly, preserving the chain result 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24438 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-20 22:57:19 +00:00
Chris Lattner
81363c3871 use chain operands to ensure the copies don't wander from the rdtsc instruction. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24434 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-20 22:01:40 +00:00
Andrew Lenharth
b873ff322c The second patch of X86 support for read cycle counter. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24430 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-20 21:41:10 +00:00
Chris Lattner
dbdbf0ce2e Separate X86ISelLowering stuff out from the X86ISelPattern.cpp file. Patch 
contributed by Evan Cheng.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24358 91177308-0d34-0410-b5e6-96231b3b80d8
 2005-11-15 00:40:23 +00:00