Andrew Lenharth
abf46a4f5e
added sdiv by 2^k and works for neg divisors also
...
llvm-svn: 21124
2005-04-06 22:03:13 +00:00
Chris Lattner
49d166c6b6
Don't make this require loopsimplify. It works BETTER with loop simplify
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but should not require it.
llvm-svn: 21123
2005-04-06 21:45:00 +00:00
Nate Begeman
7898fc8cc8
Teach ExpandShift how to handle shifts by a constant. This allows targets
...
like PowerPC to codegen long shifts in many fewer instructions.
llvm-svn: 21122
2005-04-06 21:13:14 +00:00
Andrew Lenharth
5c71402202
fix copy/paste errors, and add imm support to SxADDQ and SxSUBQ
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llvm-svn: 21121
2005-04-06 20:59:59 +00:00
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
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llvm-svn: 21119
2005-04-06 20:59:03 +00:00
Andrew Lenharth
a533de94b9
added first alpha codegen regression test
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llvm-svn: 21117
2005-04-06 20:39:17 +00:00
Andrew Lenharth
9f65102f9b
Added Nate's div by constant stuff, also scaled operations!
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llvm-svn: 21116
2005-04-06 20:25:34 +00:00
Chris Lattner
7c0786dda8
Fix a namespace issue, reported by Vladimir Merzliakov!
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llvm-svn: 21115
2005-04-06 19:45:39 +00:00
Duraid Madina
5fa854a7fe
steal sampo's div-by-constant-power-of-2 stuff
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thanks sampo!!
llvm-svn: 21113
2005-04-06 09:55:17 +00:00
Duraid Madina
1d156293cb
add fms instruction
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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
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llvm-svn: 21109
2005-04-06 06:17:54 +00:00
Chris Lattner
4201b81130
document these nodes, as they are nonobvious
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llvm-svn: 21108
2005-04-06 04:21:29 +00:00
Chris Lattner
c87ff88efb
Add (untested) support for MULHS and MULHU.
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llvm-svn: 21107
2005-04-06 04:21:07 +00:00
Chris Lattner
ba7cdbebb1
add signed versions of the extra precision multiplies
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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
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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
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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
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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
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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.
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llvm-svn: 21098
2005-04-05 17:32:30 +00:00
Tanya Lattner
4d8f553a82
Updated to use dep analyzer.
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llvm-svn: 21097
2005-04-05 16:36:44 +00:00
Nate Begeman
152dbbe856
Remove 64 bit simple ISel, it never worked correctly
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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
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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
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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
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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
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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
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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.
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llvm-svn: 21077
2005-04-04 09:09:00 +00:00
Nate Begeman
77427b1e77
Fix i64 return, fix CopyFromReg
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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
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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
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llvm-svn: 21070
2005-04-03 23:11:17 +00:00
Nate Begeman
1a5aaf6009
Pass the correct value for the chain to the store
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llvm-svn: 21066
2005-04-03 22:22:56 +00:00
Nate Begeman
82d17d0e70
Fix SHL_PARTS
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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.
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llvm-svn: 21064
2005-04-03 20:35:21 +00:00
Andrew Lenharth
4be5502eb4
fix 101 regressions
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llvm-svn: 21063
2005-04-03 18:24:50 +00:00
Duraid Madina
6b3090447d
a wise man once said:
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"!!!!!!!! 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.
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llvm-svn: 21061
2005-04-03 14:52:01 +00:00