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Author SHA1 Message Date
Chris Lattner
40ee8a062b Fix SingleSource/Regression/C/2005-05-06-LongLongSignedShift.c, we were not 
properly sign extending the top of the result of a 64-bit shift right by
a constant > 32.

llvm-svn: 21120
 2005-04-06 20:59:35 +00:00
Andrew Lenharth
e7efd9b90d simplified 
llvm-svn: 21119
 2005-04-06 20:59:03 +00:00
Andrew Lenharth
a533de94b9 added first alpha codegen regression test 
llvm-svn: 21117
 2005-04-06 20:39:17 +00:00
Andrew Lenharth
9f65102f9b Added Nate's div by constant stuff, also scaled operations! 
llvm-svn: 21116
 2005-04-06 20:25:34 +00:00
Chris Lattner
7c0786dda8 Fix a namespace issue, reported by Vladimir Merzliakov! 
llvm-svn: 21115
 2005-04-06 19:45:39 +00:00
Duraid Madina
5fa854a7fe steal sampo's div-by-constant-power-of-2 stuff 
thanks sampo!!

llvm-svn: 21113
 2005-04-06 09:55:17 +00:00
Duraid Madina
1d156293cb add fms instruction 
llvm-svn: 21112
 2005-04-06 09:54:09 +00:00
Nate Begeman
98251d6a1c Fixed version of optimized integer divide is now fixed. Calculate the 
quotient, not the remainder.  Also, make sure to remove the old div operand
from the ExprMap and let SelectExpr insert the new one.

llvm-svn: 21111
 2005-04-06 06:44:57 +00:00
Duraid Madina
2db29b8016 lie a bit and say that r1/r12 (GP/SP) _aren't_ callee-save, as we take 
care of this ourselves

llvm-svn: 21110
 2005-04-06 06:18:36 +00:00
Duraid Madina
62c4de8d62 make sure 'special' registers don't get allocated 
llvm-svn: 21109
 2005-04-06 06:17:54 +00:00
Chris Lattner
4201b81130 document these nodes, as they are nonobvious 
llvm-svn: 21108
 2005-04-06 04:21:29 +00:00
Chris Lattner
c87ff88efb Add (untested) support for MULHS and MULHU. 
llvm-svn: 21107
 2005-04-06 04:21:07 +00:00
Chris Lattner
ba7cdbebb1 add signed versions of the extra precision multiplies 
llvm-svn: 21106
 2005-04-06 04:19:22 +00:00
Nate Begeman
aee0f81849 Turn off the div -> mul optimization until it works correctly 100% of the 
time.

llvm-svn: 21105
 2005-04-06 03:36:33 +00:00
Nate Begeman
b44597771c Add support for MULHS and MULHU nodes 
Have LegalizeDAG handle SREM and UREM for us
Codegen SDIV and UDIV by constant as a multiply by magic constant instead
of integer divide, which is very slow.

llvm-svn: 21104
 2005-04-06 00:25:27 +00:00
Nate Begeman
4457b4994c Expand SREM and UREM for targets that claim not to have them, like PowerPC 
llvm-svn: 21103
 2005-04-06 00:23:54 +00:00
Nate Begeman
12af81407b Add MULHU and MULHS nodes for the high part of an (un)signed 32x32=64b 
multiply.

llvm-svn: 21102
 2005-04-05 22:36:56 +00:00
Andrew Lenharth
613a940af8 added lowerargs support for varargs 
llvm-svn: 21101
 2005-04-05 20:51:46 +00:00
Nate Begeman
82ff41c342 Behold, rlwinm with certain immediate arguments is printed as the much more 
readable slwi or srwi (shift left/right word immediate).

llvm-svn: 21099
 2005-04-05 18:19:50 +00:00
Nate Begeman
581553fd21 Fix cut & paste errors (32->64), and codegen float->int more optimally. 
llvm-svn: 21098
 2005-04-05 17:32:30 +00:00
Tanya Lattner
4d8f553a82 Updated to use dep analyzer. 
llvm-svn: 21097
 2005-04-05 16:36:44 +00:00
Nate Begeman
152dbbe856 Remove 64 bit simple ISel, it never worked correctly 
Add initial (buggy) implementation of 64 bit pattern ISel

llvm-svn: 21096
 2005-04-05 08:51:15 +00:00
Nate Begeman
a18a26f47c Back out the previous change to SelectBranchCC, since there are cases it 
could miscompile.  A correct solution will be found in the near future.

llvm-svn: 21095
 2005-04-05 04:32:16 +00:00
Nate Begeman
358dee806e Rename canUseAsImmediateForOpcode to getImmediateForOpcode to better 
indicate that it is not a boolean function.
Properly emit the pseudo instruction for conditional branch, so that we
  can fix up conditional branches whose displacements are too large.
Reserve the right amount of opcode space for said pseudo instructions.

llvm-svn: 21094
 2005-04-05 04:22:58 +00:00
Chris Lattner
c5b8fbe7f9 do not crash when using -debug 
llvm-svn: 21092
 2005-04-05 01:12:03 +00:00
Nate Begeman
ede4abc899 Implement SDIV by power of 2 as srawi/addze rather than load imm, divw 
llvm-svn: 21091
 2005-04-05 00:15:08 +00:00
Nate Begeman
00002553ba Pattern match fp mul-add, mul-sub, neg-mul-add, and neg-mul-sub 
llvm-svn: 21090
 2005-04-04 23:40:36 +00:00
Nate Begeman
682fd51f9c Add support for multiply-add, multiply-sub, and their negated versions 
llvm-svn: 21089
 2005-04-04 23:01:51 +00:00
Chris Lattner
57ea4daa2e do not dereference an extra layer of pointers to determine if an external 
call can modify a memory location.  This fixes
test/Regression/Analysis/Andersens/modreftest.ll

llvm-svn: 21088
 2005-04-04 22:23:21 +00:00
Chris Lattner
3eed93ab73 new testcase 
llvm-svn: 21087
 2005-04-04 22:22:30 +00:00
Nate Begeman
d9af5c4fc5 Make sure that arg regs used by the call instruction are marked as such, so 
that regalloc doesn't cleverly reuse early arg regs loading later arg regs.
This fixes almost all outstanding failures in the pattern isel.

llvm-svn: 21086
 2005-04-04 22:17:48 +00:00
Nate Begeman
ce13bceb2a Remove unnecessary register copy now that regalloc is fixed 
llvm-svn: 21085
 2005-04-04 21:48:13 +00:00
Chris Lattner
f81edb57b6 Make sure to notice that explicit physregs are used in the function 
llvm-svn: 21084
 2005-04-04 21:35:34 +00:00
Nate Begeman
bde3612ce3 i1 loads should also be from the low byte of the argument word. 
llvm-svn: 21077
 2005-04-04 09:09:00 +00:00
Nate Begeman
77427b1e77 Fix i64 return, fix CopyFromReg 
llvm-svn: 21076
 2005-04-04 06:52:38 +00:00
Duraid Madina
920aea2fa7 fix SREM/UREM, which gave incorrect results for x%y if x was zero. This is 
an ugly hack, but it seems to work. I should fix this properly and add a test
as well.

fixes multisource/obsequi (maybe others)

llvm-svn: 21075
 2005-04-04 05:05:52 +00:00
Duraid Madina
d896a18d33 add implicit use op 
llvm-svn: 21074
 2005-04-04 04:50:57 +00:00
Nate Begeman
a8be5b976f Handle expanding arguments to ISD::TRUNCATE. This happens on PowerPC when 
you have something like i16 = truncate i64.  This fixes Regression/C/casts

llvm-svn: 21073
 2005-04-04 00:57:08 +00:00
Chris Lattner
a8bccb73cd Fix sign_extend and zero_extend of promoted value types to expanded value 
types.  This occurs when casting short to long on PPC for example.

llvm-svn: 21072
 2005-04-03 23:41:52 +00:00
Nate Begeman
b2e5a962ff Full varargs support. All of UnitTests now passes 
llvm-svn: 21070
 2005-04-03 23:11:17 +00:00
Nate Begeman
1a5aaf6009 Pass the correct value for the chain to the store 
llvm-svn: 21066
 2005-04-03 22:22:56 +00:00
Nate Begeman
82d17d0e70 Fix SHL_PARTS 
Start implementation of integer varargs

llvm-svn: 21065
 2005-04-03 22:13:27 +00:00
Andrew Lenharth
320fff1cbe is this simpler? I think it is simpler. 
llvm-svn: 21064
 2005-04-03 20:35:21 +00:00
Andrew Lenharth
4be5502eb4 fix 101 regressions 
llvm-svn: 21063
 2005-04-03 18:24:50 +00:00
Duraid Madina
6b3090447d a wise man once said: 
"!!!!!!!! IF YOU CHANGE SPACES TO TABS, YOU WILL BE KILLED!!!!!!"

llvm-svn: 21062
 2005-04-03 14:57:35 +00:00
Duraid Madina
bfbfb0e4c7 .bss is no problem here. 
llvm-svn: 21061
 2005-04-03 14:52:01 +00:00
Nate Begeman
127bd62534 Keeping up with the Joneses. 
Implement not, nor, nand, and eqv

llvm-svn: 21060
 2005-04-03 11:20:20 +00:00
Andrew Lenharth
c16ede8779 Select optimization 
llvm-svn: 21051
 2005-04-02 22:32:39 +00:00
Andrew Lenharth
bd19c1d25f Try several things. 1) drop /i from FP ops 2) factor out FP to Int moves and provide 21264 support for those 3) match not 4) match ornot andnot xornot 
llvm-svn: 21046
 2005-04-02 21:06:51 +00:00
Chris Lattner
0938200804 fix some VC compilation problems, thanks to Jeff C for pointing this out! 
llvm-svn: 21044
 2005-04-02 20:17:09 +00:00