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1397 Commits

Author SHA1 Message Date
Evan Cheng
ba2f0a9ee5 Use SelectRoot() as entry of any tblgen based isel. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25997 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-05 06:46:41 +00:00
Evan Cheng
7dd281b3e5 Re-commit the last bit of change that was backed out. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25983 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-05 05:25:07 +00:00
Chris Lattner
ff805b50f8 Use getPreferredAlignmentLog. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25980 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-05 01:45:04 +00:00
Chris Lattner
b46ef67679 Temporarily revert this patch, which probably breaks with the 
tblgen patch reverted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25971 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 09:24:16 +00:00
Evan Cheng
9c4815a036 Complex pattern's custom matcher should not call Select() on any operands. 
Select them afterwards if it returns true.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25968 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 08:50:49 +00:00
Evan Cheng
72f514cf39 Remove an unnecessary predicate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25954 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 02:23:01 +00:00
Evan Cheng
e3de85b447 Separate FILD and FILD_FLAG, the later is only used for SSE2. It produces a 
flag so it can be flagged to a FST.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25953 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 02:20:30 +00:00
Chris Lattner
4efab056e1 remove an old comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25940 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 18:59:39 +00:00
Chris Lattner
299f9bab47 Remove the X86PeepholeOptimizerPass, a truly horrible old hack that is now 
obsolete.  yaay :)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25939 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 18:54:24 +00:00
Chris Lattner
d77525da5e When rewriting frame instructions, emit the appropriate small-immediate 
instruction when possible.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25938 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 18:20:04 +00:00
Chris Lattner
33c1dab0bd remove some target-indep and implemented notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25930 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 06:22:11 +00:00
Chris Lattner
018c02dd11 the X86 backend no longer needs to delete its own noop copies 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25923 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 02:59:58 +00:00
Chris Lattner
1c07e7286d fix operand numbers 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25915 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 20:38:12 +00:00
Chris Lattner
4083960147 Move isLoadFrom/StoreToStackSlot from MRegisterInfo to TargetInstrInfo,a far more logical place. Other methods should also be moved if anyoneis interested. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25913 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 20:12:32 +00:00
Chris Lattner
9c8dd970f7 implement isStoreToStackSlot 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25911 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 20:00:41 +00:00
Chris Lattner
1d6ecd03ea add a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25910 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 19:57:16 +00:00
Chris Lattner
d395d0984f more notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25908 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 19:43:28 +00:00
Chris Lattner
9acddcd07e add a note, I have no idea how important this is. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25907 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 19:16:34 +00:00
Chris Lattner
1bac941019 implemented, testcase here: test/Regression/CodeGen/X86/compare-add.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25899 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 06:36:48 +00:00
Evan Cheng
8b6e4e6e3e Update. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25896 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 02:40:17 +00:00
Evan Cheng
d25e9e8294 Fix a erroneous comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25894 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 00:28:23 +00:00
Chris Lattner
4d7db40ab1 more notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25890 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 23:38:08 +00:00
Evan Cheng
bda54cdd47 Tell codegen MOVAPSrr and MOVAPDrr are copies. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25889 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 23:03:16 +00:00
Evan Cheng
b1b4e86a02 Added SSE entries to foldMemoryOperand(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25888 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 23:02:25 +00:00
Evan Cheng
78376d59ab Rearrange code to my liking. :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25887 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 23:01:57 +00:00
Chris Lattner
3e2b94a171 another note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25883 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 21:44:48 +00:00
Nate Begeman
750ac1bdfa Fix some of the stuff in the PPC README file, and clean up legalization 
of the SELECT_CC, BR_CC, and BRTWOWAY_CC nodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25875 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 07:19:44 +00:00
Chris Lattner
1f7c6302be add a note, I'll take care of this after nate commits his big patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25873 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 06:40:32 +00:00
Evan Cheng
3c55c54a87 - Use xor to clear integer registers (set R, 0). 
- Added a new format for instructions where the source register is implied
  and it is same as the destination register. Used for pseudo instructions
  that clear the destination register.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25872 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 06:13:50 +00:00
Evan Cheng
214a79423f Remove another entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25871 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 06:08:48 +00:00
Chris Lattner
3e1d5e5ea3 Another regression from the pattern isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25867 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 01:44:25 +00:00
Evan Cheng
760df29881 Return's chain should be matching either the chain produced by the 
value or the chain going into the load.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25863 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 01:19:32 +00:00
Evan Cheng
0d084c9e4a When folding a load into a return of SSE value, check the chain to 
ensure the memory location has not been clobbered.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25861 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 00:20:21 +00:00
Evan Cheng
4ccf4c0d0b Remove an item. It's done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25860 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 00:15:53 +00:00
Evan Cheng
0e8671bf4a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25859 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 23:19:54 +00:00
Chris Lattner
bb1d528aa6 turning these into 'adds' would require extra copies 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25858 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 22:59:46 +00:00
Evan Cheng
223547ab31 - Allow XMM load (for scalar use) to be folded into ANDP* and XORP*. 
- Use XORP* to implement fneg.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25857 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 22:28:30 +00:00
Evan Cheng
598463fde4 Remove entries on fabs and fneg. These are done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25856 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 22:26:21 +00:00
Chris Lattner
259e97cc72 * Fix 80-column violations 
* Rename hasSSE -> hasSSE1 to avoid my continual confusion with 'has any SSE'.
* Add inline asm constraint specification.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25854 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 19:43:35 +00:00
Evan Cheng
ef6ffb17c7 Added custom lowering of fabs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25831 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 03:14:29 +00:00
Chris Lattner
8e38ae60c7 Another high-prio selection performance bug 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25828 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 02:10:06 +00:00
Chris Lattner
594086d494 more mumbling 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25826 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 00:45:37 +00:00
Chris Lattner
bdde465bcf add some notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25825 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 00:20:38 +00:00
Evan Cheng
6dfa999c01 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25824 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 23:41:35 +00:00
Evan Cheng
02568ff48d i64 -> f32, f32 -> i64 and some clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25818 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 22:13:22 +00:00
Evan Cheng
6dab05363f 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25817 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 08:02:57 +00:00
Chris Lattner
c6fd6cd65c Move MaskedValueIsZero from the DAGCombiner to the TargetLowering interface,making isMaskedValueZeroForTargetNode simpler, and useable from other partsof the compiler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25803 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 04:09:27 +00:00
Chris Lattner
87c890a9c2 adjust prototype 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25798 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 03:49:07 +00:00
Chris Lattner
c7097afe51 add another note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25789 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 09:46:06 +00:00
Chris Lattner
5164a313e0 add some performance notes from looking at sgefa 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25788 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 09:42:20 +00:00