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120 Commits

Author SHA1 Message Date
Chris Lattner 2d451658a6 add an fabs instr 
llvm-svn: 21006
 2005-04-02 04:31:56 +00:00
Chris Lattner 0ce80cd542 Fix spelling, patch contributed by Gabor Greif! 
llvm-svn: 20343
 2005-02-27 06:18:25 +00:00
Chris Lattner 0edf9535b9 Add rotate instructions. 
llvm-svn: 19690
 2005-01-19 07:50:03 +00:00
Chris Lattner d54845f530 Improve coverage of the X86 instruction set by adding 16-bit shift doubles. 
llvm-svn: 19687
 2005-01-19 07:31:24 +00:00
Chris Lattner 2947801735 Teach the code generator that shrd/shld is commutable if it has an immediate. 
This allows us to generate this:

foo:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %EDX, DWORD PTR [%ESP + 8]
        shld %EDX, %EDX, 2
        shl %EAX, 2
        ret

instead of this:

foo:
        mov %EAX, DWORD PTR [%ESP + 4]
        mov %ECX, DWORD PTR [%ESP + 8]
        mov %EDX, %EAX
        shrd %EDX, %ECX, 30
        shl %EAX, 2
        ret

Note the magically transmogrifying immediate.

llvm-svn: 19686
 2005-01-19 07:11:01 +00:00
Chris Lattner 5b589ec0c4 Add conditional moves for the parity flag. 
llvm-svn: 19437
 2005-01-10 22:09:33 +00:00
Chris Lattner d4bb2bbce1 ADC and IMUL are also commutable. 
llvm-svn: 19264
 2005-01-03 01:27:59 +00:00
Chris Lattner 295e45e60e Two changes here: 
1. Add new instructions for checking parity flags: JP, JNP, SETP, SETNP.
2. Set the isCommutable and isPromotableTo3Address bits on several
   instructions.

llvm-svn: 19246
 2005-01-02 02:35:46 +00:00
John Criswell 04570265a5 Correct the name of stosd for the AT&T syntax: 
It's stosl (l for long == 32 bit).

llvm-svn: 17658
 2004-11-10 04:48:15 +00:00
Chris Lattner 93867e516a Remove debugging code, fix encoding problem. This fixes the problems 
the JIT had last night.

llvm-svn: 16766
 2004-10-06 14:31:50 +00:00
Chris Lattner e9bfa5a2a4 Add some new instructions. Fix the asm string for sbb32rr 
llvm-svn: 16759
 2004-10-06 04:01:02 +00:00
Chris Lattner 8bbde2fb33 Convert some missed patterns to support AT&T style 
llvm-svn: 16645
 2004-10-04 07:23:07 +00:00
Chris Lattner 2e99778aad Apparently the GNU assembler has a HUGE hack to be compatible with really 
old and broken AT&T syntax assemblers.  The problem with this hack is that
*SOME* forms of the fdiv and fsub instructions have the 'r' bit inverted.
This was a real pain to figure out, but is trivially easy to support: thus
we are now bug compatible with gas and gcc.

llvm-svn: 16644
 2004-10-04 07:08:46 +00:00
Chris Lattner af69503332 Fix incorrect suffix 
llvm-svn: 16642
 2004-10-04 05:20:16 +00:00
Chris Lattner e1a2826d51 Fix some more missed suffixes and swapped operands 
llvm-svn: 16641
 2004-10-04 01:38:10 +00:00
Chris Lattner a488f04f3e Add missing suffixes to FP instructions for AT&T mode 
llvm-svn: 16640
 2004-10-04 00:43:31 +00:00
Chris Lattner 4e59a14909 Add support to the instruction patterns for AT&T style output, which will 
hopefully lead to the death of the 'GasBugWorkaroundEmitter'.  This also
includes changes to wrap the whole file to 80 columns! Woot! :)

Note that the AT&T style output has not been tested at all.

llvm-svn: 16638
 2004-10-03 20:35:00 +00:00
Alkis Evlogimenos 371403193c Use a shorter form to express implicit use/defs in FpGETRESULT and 
FpSETRESULT.

llvm-svn: 16247
 2004-09-08 18:29:31 +00:00
Alkis Evlogimenos 8b700215ed A call instruction should implicitely define ST0 since the return 
value is returned in that register. The pseudo instructions
FpGETRESULT and FpSETRESULT shold also have an implicity use and def
of ST0 repsecitvely.

llvm-svn: 16246
 2004-09-08 16:54:54 +00:00
Chris Lattner eb34c59930 Remove a bunch of ad-hoc target-specific flags that were only used by the 
old asmprinter.

llvm-svn: 15660
 2004-08-11 07:12:04 +00:00
Chris Lattner a0bafce127 Add asmprintergen support for the last X86 instruction that needs it: pcrelative calls. 
llvm-svn: 15657
 2004-08-11 06:59:12 +00:00
Chris Lattner 5f4b65e57d Scrunch memoperands, add a few more for floating point memops 
Eliminate the FPI*m classes, converting them to use FPI instead.

llvm-svn: 15655
 2004-08-11 06:50:10 +00:00
Chris Lattner 6dd0474edd Make FPI take asm string and operand list 
llvm-svn: 15653
 2004-08-11 05:54:16 +00:00
Chris Lattner c52899c3c7 Nuke the Im*i* patterns, by asmprintergenifying all users. 
llvm-svn: 15652
 2004-08-11 05:31:07 +00:00
Chris Lattner f5c767038a X86 instructions that read-modify-write memory are not LLVM two-address instructions. 
llvm-svn: 15651
 2004-08-11 05:07:25 +00:00
Chris Lattner 0d7bc2c5da Get rid of the Im8, Im16, Im32 classes, converting more instructions over to 
asmprintergeneration

llvm-svn: 15650
 2004-08-11 04:31:00 +00:00
Chris Lattner 09ee05bcdf Convert asmprinter to new style of instruction printer 
Start asmprintergen'ifying machine instrs with memory operands.

llvm-svn: 15646
 2004-08-11 02:25:00 +00:00
Chris Lattner ce5fb7db1c This is purely a formatting patch that gets us closer to the mecca of fitting 
X86InstrInfo.td into 80 columns

llvm-svn: 15629
 2004-08-10 21:21:30 +00:00
Chris Lattner 116fc25d79 Drop the first argument of FPI, and asmprinterify fxch 
llvm-svn: 15628
 2004-08-10 21:02:13 +00:00
Chris Lattner ead14c1a07 This purely mechanical patch gives the "I" tblgen class operand list and asm 
string operands, and adjusts all users to pass them in instead of using II.

llvm-svn: 15624
 2004-08-10 20:17:41 +00:00
Chris Lattner c4eb5951d5 Convert Ii32 instructions over to use the asmprinter generator 
llvm-svn: 15621
 2004-08-10 19:06:36 +00:00
Chris Lattner 9f49a91b44 Convert the Ii16 instructions over 
llvm-svn: 15606
 2004-08-10 16:22:02 +00:00
Chris Lattner 4d66b78036 Convert all Ii8 instructions over to the autogenerated asmprinter. 
llvm-svn: 15605
 2004-08-10 16:09:54 +00:00
Chris Lattner 2b47c02b64 Convert all I<> instructions to asmformat. 
Delete the 'name' field of all instructions that have asmformats.

llvm-svn: 15403
 2004-08-01 09:52:59 +00:00
Chris Lattner 27fcf976f2 Eliminate 3 of the X86 printImplicit* flags. 
llvm-svn: 15398
 2004-08-01 08:23:17 +00:00
Chris Lattner f6bd77190e Convert more instructions over to the asmprinter 
llvm-svn: 15396
 2004-08-01 08:13:11 +00:00
Chris Lattner 275d98dcbb Switch more instructions over to using the asmprinter. Fix bugs in the emission 
of in/out instructions (missing %'s on registers).

llvm-svn: 15393
 2004-08-01 07:44:35 +00:00
Chris Lattner 321763358b Specify an asm string and operands lists for a bunch of instructions. 
This only really covers no-operand instructions so far.

llvm-svn: 15387
 2004-08-01 06:01:00 +00:00
Chris Lattner 70d2260eb9 Entirely eliminate all patterns and expanders from this file. We shall go 
with an incremental approach rather than a revolutionary approach.

llvm-svn: 15379
 2004-08-01 03:25:01 +00:00
Chris Lattner 66a13e230d Mark barrier instructions. Execution does not fall through uncond branches 
or return intructions.

llvm-svn: 15356
 2004-07-31 02:10:53 +00:00
Chris Lattner 5ed9113e14 No really, these are dead now 
llvm-svn: 14145
 2004-06-11 04:50:14 +00:00
Chris Lattner b35f47627d Now that compare instructions aren't lumped in with the other twoargfp instructions, 
we can get rid of the FpUCOM/FpUCOMi pseudo instructions, which makes stuff simpler
and faster.

llvm-svn: 14144
 2004-06-11 04:49:02 +00:00
Chris Lattner 0876edf122 Introduce a new FP instruction type to separate the compare cases from the 
twoarg cases.

llvm-svn: 14143
 2004-06-11 04:41:24 +00:00
Chris Lattner a0cfedef3a Add support for the setp instructions 
llvm-svn: 14140
 2004-06-11 04:30:06 +00:00
Chris Lattner a340febe52 Add immediate forms of in/out. Use let to shorten lines 
llvm-svn: 12895
 2004-04-13 17:19:31 +00:00
Chris Lattner a24f986333 Fix issues that the local allocator has dealing with instructions that implicitly use ST(0) 
llvm-svn: 12855
 2004-04-12 03:02:48 +00:00
Chris Lattner 2e2b0ceab9 No really, fix printing for LLC. I gotta get a way for CVS to whine at me if 
I have unsaved emacs buffers, geeze...

llvm-svn: 12854
 2004-04-12 01:52:04 +00:00
Chris Lattner ba1038e0f3 Correct printing for LLC and the encoding for the JIT 
llvm-svn: 12853
 2004-04-12 01:50:04 +00:00
Chris Lattner 6c84d4ca44 Add two new instructions 
llvm-svn: 12850
 2004-04-12 01:38:55 +00:00
Chris Lattner b6e0b58fbc Add some new instructions 
llvm-svn: 12838
 2004-04-11 20:24:15 +00:00