Reid Spencer
7be576b4b0
Revert the last patch as it violates the conditions of sext/zext.
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llvm-svn: 35068
2007-03-12 18:37:25 +00:00
Jeff Cohen
4e667fd766
Unbreak C++ build.
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llvm-svn: 35067
2007-03-12 17:57:00 +00:00
Jeff Cohen
91930bc4d4
Unbreak VC++ build. Do not use identifiers starting with _ as they are reserved and
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can collide with system defined names. Windows defines _BB, for example.
llvm-svn: 35066
2007-03-12 17:56:27 +00:00
Zhou Sheng
0145067d85
For APInt::z/sext(width), if width == BitWidth, just return *this.
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llvm-svn: 35065
2007-03-12 17:47:45 +00:00
Reid Spencer
d59425085f
Add an APInt version of SimplifyDemandedBits.
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Patch by Zhou Sheng.
llvm-svn: 35064
2007-03-12 17:25:59 +00:00
Reid Spencer
b18f916bbe
Add an APInt version of ShrinkDemandedConstant.
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Patch by Zhou Sheng.
llvm-svn: 35063
2007-03-12 17:15:10 +00:00
Zhou Sheng
c8583ff888
Avoid to assert on "(KnownZero & KnownOne) == 0".
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llvm-svn: 35062
2007-03-12 16:54:56 +00:00
Zhou Sheng
c9c53385b8
In function ComputeMaskedBits():
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1. Replace getSignedMinValue() with getSignBit() for better code readability.
2. Replace APIntOps::shl() with operator<<= for convenience.
3. Make APInt construction more effective.
llvm-svn: 35060
2007-03-12 05:44:52 +00:00
Nick Lewycky
8a08bcfbe7
Add value ranges. Currently inefficient in both execution time and
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optimization power.
llvm-svn: 35058
2007-03-10 18:12:48 +00:00
Anton Korobeynikov
0c2d312725
Use range tests in LowerSwitch, where possible
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llvm-svn: 35057
2007-03-10 16:46:28 +00:00
Nick Lewycky
2af4a3ab17
Add getter methods for the extremes of a ConstantRange.
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llvm-svn: 35056
2007-03-10 15:54:12 +00:00
Bill Wendling
236cfc4344
Adding more arithmetic operators to MMX. This is an almost exact copy of
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the addition. Please let me know if you have suggestions.
llvm-svn: 35055
2007-03-10 09:57:05 +00:00
Devang Patel
20b8163ad3
Remove dead comments.
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llvm-svn: 35053
2007-03-09 23:41:03 +00:00
Devang Patel
8a26f4caa0
Avoid recursion. Use iterative algorithm for RenamePass().
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llvm-svn: 35052
2007-03-09 23:39:14 +00:00
Devang Patel
ca60446cb4
Increment iterator now because IVUseShouldUsePostIncValue may remove
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User from the list of I users.
llvm-svn: 35051
2007-03-09 21:19:53 +00:00
Reid Spencer
75ffe11ca9
Regenerate.
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llvm-svn: 35050
2007-03-09 21:19:09 +00:00
Evan Cheng
a4e410aa9c
Minor stuff.
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llvm-svn: 35049
2007-03-09 19:46:06 +00:00
Evan Cheng
d7201d12af
Add comments about LSR / ARM.
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llvm-svn: 35048
2007-03-09 19:35:33 +00:00
Evan Cheng
2e6f19d8c8
Unfinished work and ideas related to register scavenger.
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llvm-svn: 35047
2007-03-09 19:34:51 +00:00
Reid Spencer
f860fd3370
For PR1245:
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Account for the sign bit when computing the number of bits required for
a negative integer literal constant.
llvm-svn: 35046
2007-03-09 19:26:52 +00:00
Dale Johannesen
10a05b538d
apply comments from review of last patch
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llvm-svn: 35045
2007-03-09 19:18:59 +00:00
Dale Johannesen
23c2498e23
Add some observations from CoreGraphics benchmark. Remove register
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scavenging todo item, since it is now implemented.
llvm-svn: 35044
2007-03-09 17:58:17 +00:00
Anton Korobeynikov
f8f0ce564c
Unbreak mingw32 build
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llvm-svn: 35042
2007-03-09 11:53:34 +00:00
Evan Cheng
dc9f790abd
If a virtual register is already marked alive in this block, that means it is
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alive in one of the successor block. Do not add it to the kill list.
llvm-svn: 35041
2007-03-09 09:48:56 +00:00
Evan Cheng
e7ba7ee5d8
Print preds / succs BB numbers.
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llvm-svn: 35040
2007-03-09 08:29:08 +00:00
Evan Cheng
0049744cd8
Avoid variable shadowing.
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llvm-svn: 35039
2007-03-09 06:02:17 +00:00
Bill Wendling
4e2fff5898
Don't use std::hex.
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llvm-svn: 35038
2007-03-08 23:37:24 +00:00
Bill Wendling
80cc8c4502
Don't use a cast. It causes an error on some platforms.
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llvm-svn: 35037
2007-03-08 23:26:50 +00:00
Evan Cheng
7ef8db2fb5
Implement inline asm modifier c.
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llvm-svn: 35035
2007-03-08 22:42:46 +00:00
Chris Lattner
dfe5b3bd1d
implement support for floating point constants used as inline asm memory operands.
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llvm-svn: 35033
2007-03-08 22:29:47 +00:00
Bill Wendling
5fef3fd7e7
Added "padd*" support for MMX. Added MMX move stuff to X86InstrInfo so that
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moves, loads, etc. are recognized.
llvm-svn: 35031
2007-03-08 22:09:11 +00:00
Evan Cheng
6445ce2423
Fix a typo.
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llvm-svn: 35030
2007-03-08 21:59:30 +00:00
Devang Patel
94228897e7
Speed Up Pass Manager.
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- Check Immutableness before searching PreservedSet.
- Avoid unnecessary traversal while setting Last User.
llvm-svn: 35028
2007-03-08 19:05:01 +00:00
Zhou Sheng
acc59870f7
Fix a bug in function ComputeMaskedBits().
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llvm-svn: 35027
2007-03-08 15:15:18 +00:00
Evan Cheng
7d528d089c
Putting more constants which do not contain relocations into .literal{4|8|16}
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llvm-svn: 35026
2007-03-08 08:31:54 +00:00
Chris Lattner
7e516796f6
make this fail even in non-assert builds.
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llvm-svn: 35025
2007-03-08 07:07:03 +00:00
Chris Lattner
66843dbef9
This appears correct, enable it so we can see perf changes on testers
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llvm-svn: 35024
2007-03-08 07:03:55 +00:00
Chris Lattner
049f21257d
Second half of PR1226. This is currently still disabled, until I have a chance to
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do the correctness/performance analysis testing.
llvm-svn: 35023
2007-03-08 06:36:54 +00:00
Zhou Sheng
37cb2e2d53
Fix a bug in APIntified ComputeMaskedBits().
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llvm-svn: 35022
2007-03-08 05:42:00 +00:00
Evan Cheng
393fd04eb4
Change register allocation order to Dale's suggestion.
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llvm-svn: 35021
2007-03-08 02:56:40 +00:00
Evan Cheng
2c3e4ab3a6
Bug fix. Not advancing the register scavenger iterator correctly.
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llvm-svn: 35020
2007-03-08 02:55:08 +00:00
Reid Spencer
c3f0724204
For PR1205:
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Provide an APIntified version of MaskedValueIsZero. This will (temporarily)
cause a "defined but not used" message from the compiler. It will be used
in the next patch in this series.
Patch by Sheng Zhou.
llvm-svn: 35019
2007-03-08 01:52:58 +00:00
Reid Spencer
6a924d1a1d
For PR1205:
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Add a new ComputeMaskedBits function that is APIntified. We'll slowly
convert things over to use this version. When its all done, we'll remove
the existing version.
llvm-svn: 35018
2007-03-08 01:46:38 +00:00
Evan Cheng
c79408b032
For Darwin, put constant data into .const, .const_data, .literal{4|8|16}
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sections.
llvm-svn: 35017
2007-03-08 01:25:25 +00:00
Evan Cheng
14b63d89c1
Put constant data to .const, .const_data, .literal{4|8|16} sections.
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llvm-svn: 35016
2007-03-08 01:07:07 +00:00
Evan Cheng
6bf2f3665e
Add ReadOnlySection directive.
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llvm-svn: 35015
2007-03-08 01:00:38 +00:00
Evan Cheng
7513c95267
Added ContainsRelocations() to check if a constant might only be resolvable at load time.
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llvm-svn: 35014
2007-03-08 00:59:12 +00:00
Evan Cheng
51c3e53eb7
Only safe to use a call-clobbered or spilled callee-saved register as scratch register.
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llvm-svn: 35010
2007-03-07 20:30:36 +00:00
Bill Wendling
8f49ba1000
Remove useless pattern fragments.
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llvm-svn: 35009
2007-03-07 18:23:09 +00:00
Anton Korobeynikov
85d6c1ebad
Refactoring of formal parameter flags. Enable properly use of
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zext/sext/aext stuff.
llvm-svn: 35008
2007-03-07 16:25:09 +00:00