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5318 Commits

Author SHA1 Message Date
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
7d8d5a522f Use the asmprinter to find out what the preferred alignment of a global is. 
This patch speeds up 172.mgrid from 31.81s to 11.39s on darwin/ppc.
Many many thanks to Nate for tracking down the root cause of the issue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25979 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-05 01:30:45 +00:00
Andrew Lenharth
fd89543e7d linkage fix for weak functions 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25976 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 19:13:09 +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
Chris Lattner
c275dfa727 Custom lower VAARG for the case when we are doing vaarg(double). In this 
case, the double being loaded may not be 8-byte aligned, so we have to use
our standard bit_convert game.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25967 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 08:31:30 +00:00
Chris Lattner
c4b612ba2a Fix a nasty typo that broke functions with big stack frames. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25966 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 08:04:21 +00:00
Chris Lattner
329a515fe7 fix a bug in my last checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25965 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 07:48:46 +00:00
Nate Begeman
a6973c348b Remove some stuff that now works 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25963 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 07:29:35 +00:00
Chris Lattner
0d913eaaed add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25962 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 07:07:31 +00:00
Chris Lattner
69d39091fe Two changes: 
1. Treat FMOVD as a copy instruction, to help with coallescing in V9 mode
2. When in V9 mode, insert FMOVD instead of FpMOVD instructions, as we don't
   ever rewrite FpMOVD instructions into FMOVS instructions, thus we just end
   up with commented out copies!
This should fix a bunch of failures in V9 mode on sparc.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25961 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-04 06:58:46 +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
1541bc3a23 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25944 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 22:06:45 +00:00
Chris Lattner
e7b06c65ba another case Nate came up with 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25943 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 22:05:41 +00:00
Chris Lattner
f92bafa2ca add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25942 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 21:25:23 +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
6184f9ca5e Teach sparc to fold loads/stores into copies. 
Remove the dead getRegClassForType method
minor formating changes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25936 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 07:06:25 +00:00
Chris Lattner
5ccc7225db Implement isLoadFromStackSlot and isStoreToStackSlot 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25932 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 06:44:54 +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
086c014efe target independent notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25929 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 06:21:43 +00:00
Nate Begeman
a63fee898b Flesh out a couple of the items in the README 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25928 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 05:17:06 +00:00
Andrew Lenharth
133d3100ea isStoreToStackSlot 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25925 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 03:07:37 +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
d463f7f698 Add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25921 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-03 01:49:49 +00:00
Chris Lattner
39b248b79e update a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25918 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 23:50:22 +00:00
Nate Begeman
3b478b31e2 add 64b gpr store to the possible list of isStoreToStackSlot opcodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25916 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 21:07:50 +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
6524287c53 implement isStoreToStackSlot for PPC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25914 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 20:16:12 +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
c8c0bb00a3 %fcc is not an alias for %fcc0 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25906 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 08:02:20 +00:00
Chris Lattner
4032cf049d correct an opcode 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25905 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 07:56:15 +00:00
Chris Lattner
275b8846d5 new example 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25903 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 07:37:11 +00:00
Nate Begeman
93c740bbbb Update the README 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25902 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-02 07:27:56 +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
588732748b add a method 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25884 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 22:38:46 +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
Andrew Lenharth
77f0885fa3 Add immediate forms of cmov and remove some cruft 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25882 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 19:37:33 +00:00
Chris Lattner
20ea062192 Finegrainify namespacification 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25877 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 18:10:56 +00:00
Chris Lattner
5a7efc9d4f add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25876 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 17:54:23 +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
Chris Lattner
0ddc18047d another testcase. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25862 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-02-01 00:28:12 +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
Evan Cheng
b8973bd8f5 Allow the specification of explicit alignments for constant pool entries. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25855 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 22:23:14 +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
Chris Lattner
ddc787dfdc add info about the inline asm register constraints for PPC 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25853 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 19:20:21 +00:00
Chris Lattner
c03468bafa add a missing break that caused a lot of failures last night :( 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25851 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 17:20:06 +00:00
Nate Begeman
4477590ef6 Codegen 
bool %test(int %X) {
  %Y = seteq int %X, 13
  ret bool %Y
}

as

_test:
        addi r2, r3, -13
        cntlzw r2, r2
        srwi r3, r2, 5
        blr

rather than

_test:
        cmpwi cr7, r3, 13
        mfcr r2
        rlwinm r3, r2, 31, 31, 31
        blr

This has very little effect on most code, but speeds up analyzer 23% and
mason 11%


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25848 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 08:17:29 +00:00
Chris Lattner
a34b898bc0 okay, one more 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25847 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:45:45 +00:00
Chris Lattner
fabec5bcb5 another note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25846 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:45:08 +00:00
Chris Lattner
76e7a441cf More notes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25845 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:43:33 +00:00
Chris Lattner
a45b4925e1 another one 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25844 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:38:32 +00:00
Chris Lattner
302601c343 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25843 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:37:20 +00:00
Chris Lattner
af370f7c0c add conditional moves of float and double values on int/fp condition codes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25842 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:26:55 +00:00
Chris Lattner
83e64baaef example nate pointed out 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25841 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 07:16:34 +00:00
Chris Lattner
7a4d2913ea treat conditional branches the same way as conditional moves (giving them 
an operand that contains the condcode), making things significantly simpler.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25840 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:56:30 +00:00
Chris Lattner
6788faa06a compactify all of the integer conditional moves into one instruction that takes 
a CC as an operand.  Much smaller, much happier.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25839 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:49:09 +00:00
Chris Lattner
97f91027e6 Add immediate forms of integer cmovs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25838 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:24:29 +00:00
Chris Lattner
749d6fadf8 Shrinkify 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25837 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 06:18:16 +00:00
Chris Lattner
6dc83c777d Add the full complement of conditional moves of integer registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25834 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 05:26:36 +00:00
Chris Lattner
86638b94c1 Compile this: 
void %X(int %A) {
        %C = setlt int %A, 123          ; <bool> [#uses=1]
        br bool %C, label %T, label %F

T:              ; preds = %0
        call int %main( int 0 )         ; <int>:0 [#uses=0]
        ret void

F:              ; preds = %0
        ret void
}

to this:

X:
        save -96, %o6, %o6
        subcc %i0, 122, %l0
        bg .LBBX_2      ! F
        nop
...

not this:

X:
        save -96, %o6, %o6
        sethi 0, %l0
        or %g0, 1, %l1
        subcc %i0, 122, %l2
        bg .LBBX_4      !
        nop
.LBBX_3:        !
        or %g0, %l0, %l1
.LBBX_4:        !
        subcc %l1, 0, %l0
        bne .LBBX_2     ! F
        nop


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25833 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 05:05:52 +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
56b6964473 add the 'lucas' optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25830 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 02:55:28 +00:00
Chris Lattner
b716343851 I don't see why this optimization isn't safe, but it isn't, so disable it 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25829 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-31 02:45:52 +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
Chris Lattner
2adc05cf5b Fix FP constants, and the SparcV8/2006-01-22-BitConvertLegalize.ll failure from last night 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25819 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 22:20:49 +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
3772bcb333 Revamp the ICC/FCC reading instructions to be parameterized in terms of the 
SPARC condition codes, not in terms of the DAG condcodes.  This allows us to
write nice clean patterns for cmovs/branches.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25815 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 07:43:04 +00:00
Chris Lattner
9072c05cd8 Compile: 
uint %test(uint %X) {
        %Y = call uint %llvm.ctpop.i32(uint %X)
        ret uint %Y
}

to:

test:
        save -96, %o6, %o6
        sll %i0, 0, %l0
        popc %l0, %i0
        restore %g0, %g0, %g0
        retl
        nop

instead of to 40 logical ops.  Note the shift-by-zero that clears the top
part of the 64-bit V9 register.

Testcase here: CodeGen/SparcV8/ctpop.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25814 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 06:14:02 +00:00
Chris Lattner
5295de7c41 If the target has V9 instructions, this pass is a noop, don't bother 
running it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25811 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 05:51:14 +00:00
Chris Lattner
b34d3fd4cf When in v9 mode, emit fabsd/fnegd/fmovd 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25810 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 05:48:37 +00:00
Chris Lattner
76afdc9a80 First step towards V9 instructions in the V8 backend, two conditional move 
patterns.  This allows emission of this code:

t1:
        save -96, %o6, %o6
        subcc %i0, %i1, %l0
        move %icc, %i0, %i2
        or %g0, %i2, %i0
        restore %g0, %g0, %g0
        retl
        nop

instead of this:

t1:
        save -96, %o6, %o6
        subcc %i0, %i1, %l0
        be .LBBt1_2     !
        nop
.LBBt1_1:       !
        or %g0, %i2, %i0
.LBBt1_2:       !
        restore %g0, %g0, %g0
        retl
        nop

for this:

int %t1(int %a, int %b, int %c) {
        %tmp.2 = seteq int %a, %b
        %tmp3 = select bool %tmp.2, int %a, int %c
        ret int %tmp3
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25809 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 05:35:57 +00:00
Chris Lattner
6f63001214 Two changes: 
1. Default to having V9 instructions, instead of just V8.
2. unless -enable-sparc-v9-insts is passed, disable V9 (for use with llcbeta)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25807 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 04:57:43 +00:00
Chris Lattner
dea9528f7f When lowering SELECT_CC, see if the input is a lowered SETCC. If so, fold 
the two operations together.  This allows us to compile this:

void %two(int %a, int* %b) {
        %tmp.2 = seteq int %a, 0
        %tmp.0.0 = select bool %tmp.2, int 10, int 20
        store int %tmp.0.0, int* %b
        ret void
}

into:

two:
        save -96, %o6, %o6
        or %g0, 20, %l0
        or %g0, 10, %l1
        subcc %i0, 0, %l2
        be .LBBtwo_2    ! entry
        nop
.LBBtwo_1:      ! entry
        or %g0, %l0, %l1
.LBBtwo_2:      ! entry
        st %l1, [%i1]
        restore %g0, %g0, %g0
        retl
        nop

instead of:

two:
        save -96, %o6, %o6
        sethi 0, %l0
        or %g0, 1, %l1
        or %g0, 20, %l2
        or %g0, 10, %l3
        subcc %i0, 0, %l4
        be .LBBtwo_2    ! entry
        nop
.LBBtwo_1:      ! entry
        or %g0, %l0, %l1
.LBBtwo_2:      ! entry
        subcc %l1, 0, %l0
        bne .LBBtwo_4   ! entry
        nop
.LBBtwo_3:      ! entry
        or %g0, %l2, %l3
.LBBtwo_4:      ! entry
        st %l3, [%i1]
        restore %g0, %g0, %g0
        retl
        nop


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25806 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 04:34:44 +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
4a397e0e94 Implement isMaskedValueZeroForTargetNode for the various v8 selectcc nodes, 
allowing redundant and's to be eliminated by the dag combiner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25800 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-30 03:51:45 +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
37dd6f1b79 Functions that are lazily streamed in from the .bc file are *not* external. 
This fixes llvm-test/SingleSource/UnitTests/2006-01-29-SimpleIndirectCall.c
and PR704


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25793 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 20:49:17 +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
Chris Lattner
6a28456e18 add a high-priority SSE issue from sgefa 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25787 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 09:14:47 +00:00
Chris Lattner
b638cd89db add a missed optimization 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25786 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 09:08:15 +00:00
Chris Lattner
d9b55dd21a Now that OpActions is big enough, we can specify actions for vector types 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25784 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 08:41:37 +00:00
Chris Lattner
3fd327fe7f disable this for now 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25778 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 07:31:33 +00:00
Reid Spencer
2ce5b263ba Add a note about lowering llvm.memset, llvm.memcpy, and llvm.memmove to a 
few stores under certain conditions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25777 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:48:25 +00:00
Chris Lattner
0fc9c26e7d remove now-dead code, the legalizer takes care of this for us 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25776 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:45:31 +00:00
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
ec4a0c7c6b Request expansion of ConstantVec nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25773 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:32:58 +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
08a90229ae Update alpha to reflect recent constantfp legalize changes. It's not clear 
why all this code isn't autogenerated. :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25770 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 06:25:22 +00:00
Chris Lattner
c7e1852d63 cmovle != cmovlt 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25761 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 03:47:30 +00:00
Jeff Cohen
b8643ac476 Fix typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25760 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-29 03:45:35 +00:00
Jeff Cohen
c4013d6772 Flesh out AMD family/models. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25755 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 20:30:18 +00:00
Jeff Cohen
216d281d0a Correctly determine CPU vendor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25754 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 19:48:34 +00:00
Jeff Cohen
a349640b7f Use union instead of reinterpret_cast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25751 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:47:32 +00:00
Jeff Cohen
7617717496 Fix recognition of Intel CPUs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25750 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:38:20 +00:00
Chris Lattner
c2fad16155 Is64Bit reflects the capability of the chip, not an aspect of the target os 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25749 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:23:48 +00:00
Chris Lattner
dabbc98396 Fix a bunch of JIT failures with the new isel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25748 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:19:37 +00:00
Jeff Cohen
41adb0d679 Improve X86 subtarget support for Windows and AMD. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25747 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 18:09:06 +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
Chris Lattner
e00ebf0aca Fix a bug in my elimination of ISD::CALL this morning. PPC now has to 
provide the expansion for i64 calls itself


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25735 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 07:33:03 +00:00
Chris Lattner
1e39a15b42 make this work on non-native hosts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25734 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 06:05:41 +00:00
Chris Lattner
969097968c add a note about how we should implement this FIXME from the legalizer: 
// FIXME: revisit this when we have some kind of mechanism by which targets
    // can decided legality of vector constants, of which there may be very
    // many.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25733 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 05:40:47 +00:00
Nate Begeman
0aed7840ec Implement Promote for VAARG, and allow it to be custom promoted for people 
who don't want the default behavior (Alpha).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25726 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 03:14:31 +00:00
Nate Begeman
eb20ed6c86 Add a couple more things to the readme. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25724 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 01:22:10 +00:00
Chris Lattner
34fa038f0c Remove some dead code 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25719 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-28 00:02:51 +00:00
Chris Lattner
2d90bd5f42 Switch to AlphaISD::CALL instead of ISD::CALL 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25718 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 23:39:00 +00:00
Chris Lattner
281b55ebec Use PPCISD::CALL instead of ISD::CALL 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25717 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 23:34:02 +00:00
Chris Lattner
44ea7b1a6c Use V8ISD::CALL instead of ISD::CALL 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25716 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 23:30:03 +00:00
Evan Cheng
d41e9e5e7a A bit of wisdom from Chris on the last entry. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25715 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 22:54:32 +00:00
Evan Cheng
85214ba3cc AT&T assembly convention: registers are in lower case. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25714 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 22:53:29 +00:00
Chris Lattner
184cc4ac60 initialize member vars 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25712 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 22:38:36 +00:00
Chris Lattner
104988a16a initialize all instance vars 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25711 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 22:37:09 +00:00
Chris Lattner
bba534dc66 Make llvm.frame/returnaddr not crash on ppc 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25710 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 22:25:06 +00:00
Evan Cheng
e826a018b9 Added notes about a x86 isel deficiency. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25706 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 22:11:01 +00:00
Evan Cheng
dbd38d7f64 Added a temporary option -enable-x86-sse to enable sse support. It is used by 
llc-beta.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25701 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 21:49:34 +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
b3a7e21b7e A better workaround 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25692 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 19:30:30 +00:00
Chris Lattner
9f96a32831 force sse/3dnow off until they work. This fixes all the x86 failures last night 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25690 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 18:30:50 +00:00
Chris Lattner
c2493c45a0 Unbreak the JIT with SSE 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25688 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 18:27:18 +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
19c9550744 Subtarget feature can now set any variable to any value 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25678 91177308-0d34-0410-b5e6-96231b3b80d8
 2006-01-27 08:09:42 +00:00