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Author SHA1 Message Date
Chris Lattner
efc2339bd7 ifdef out some dead code. 
Fix PR1244 and Transforms/InstCombine/2007-03-13-CompareMerge.ll

llvm-svn: 35082
 2007-03-13 14:27:42 +00:00
Chris Lattner
0f75a6cc7f testcase for PR1244 
llvm-svn: 35081
 2007-03-13 14:25:35 +00:00
Zhou Sheng
7cf2811ab3 For expression like 
"APInt::getAllOnesValue(ShiftAmt).zextOrCopy(BitWidth)",
to handle ShiftAmt == BitWidth situation, use zextOrCopy() instead of
zext().

llvm-svn: 35080
 2007-03-13 06:40:59 +00:00
Zhou Sheng
dfcf9376bc Add zextOrCopy() into APInt for convenience. 
llvm-svn: 35079
 2007-03-13 06:16:26 +00:00
Zhou Sheng
14cef9ec74 In APInt version ComputeMaskedBits(): 
1. Ensure VTy, KnownOne and KnownZero have same bitwidth.
  2. Make code more efficient.

llvm-svn: 35078
 2007-03-13 02:23:10 +00:00
Evan Cheng
92712d4884 Implement getTargetLowering() or else LSR won't be using ARM specific hooks. 
llvm-svn: 35077
 2007-03-13 01:20:42 +00:00
Evan Cheng
b2a5499d86 More flexible TargetLowering LSR hooks for testing whether an immediate is a legal target address immediate or scale. 
llvm-svn: 35076
 2007-03-12 23:37:10 +00:00
Evan Cheng
7767159f08 Updated TargetLowering LSR addressing mode hooks for ARM and Thumb. 
llvm-svn: 35075
 2007-03-12 23:30:29 +00:00
Evan Cheng
06d83c8fce More flexible TargetLowering LSR hooks for testing whether an immediate is a legal target address immediate or scale. 
llvm-svn: 35074
 2007-03-12 23:29:01 +00:00
Evan Cheng
0eeb8b59eb More flexible TargetLowering LSR hooks for testing whether an immediate is 
a legal target address immediate or scale.

llvm-svn: 35073
 2007-03-12 23:28:50 +00:00
Evan Cheng
1fcdd7e1e5 Use new TargetLowering addressing modes hooks. 
llvm-svn: 35072
 2007-03-12 23:27:37 +00:00
Evan Cheng
f132fa5bba More flexible TargetLowering LSR hooks for testing whether an immediate is 
a legal target address immediate or scale.

llvm-svn: 35071
 2007-03-12 23:26:27 +00:00
Evan Cheng
4224fa3617 Stupid bug: SSE2 supports v2i64 add / sub. 
llvm-svn: 35070
 2007-03-12 22:58:52 +00:00
Reid Spencer
7be576b4b0 Revert the last patch as it violates the conditions of sext/zext. 
llvm-svn: 35068
 2007-03-12 18:37:25 +00:00
Jeff Cohen
4e667fd766 Unbreak C++ build. 
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 
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. 
llvm-svn: 35065
 2007-03-12 17:47:45 +00:00
Reid Spencer
d59425085f Add an APInt version of SimplifyDemandedBits. 
Patch by Zhou Sheng.

llvm-svn: 35064
 2007-03-12 17:25:59 +00:00
Reid Spencer
b18f916bbe Add an APInt version of ShrinkDemandedConstant. 
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". 
llvm-svn: 35062
 2007-03-12 16:54:56 +00:00
Zhou Sheng
c9c53385b8 In function ComputeMaskedBits(): 
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
Zhou Sheng
9643d0a422 Add getSignBit() and operator<<= into APInt for convenience. 
llvm-svn: 35059
 2007-03-11 07:16:10 +00:00
Nick Lewycky
8a08bcfbe7 Add value ranges. Currently inefficient in both execution time and 
optimization power.

llvm-svn: 35058
 2007-03-10 18:12:48 +00:00
Anton Korobeynikov
0c2d312725 Use range tests in LowerSwitch, where possible 
llvm-svn: 35057
 2007-03-10 16:46:28 +00:00
Nick Lewycky
2af4a3ab17 Add getter methods for the extremes of a ConstantRange. 
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 
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. 
llvm-svn: 35053
 2007-03-09 23:41:03 +00:00
Devang Patel
8a26f4caa0 Avoid recursion. Use iterative algorithm for RenamePass(). 
llvm-svn: 35052
 2007-03-09 23:39:14 +00:00
Devang Patel
ca60446cb4 Increment iterator now because IVUseShouldUsePostIncValue may remove 
User from the list of I users.

llvm-svn: 35051
 2007-03-09 21:19:53 +00:00
Reid Spencer
75ffe11ca9 Regenerate. 
llvm-svn: 35050
 2007-03-09 21:19:09 +00:00
Evan Cheng
a4e410aa9c Minor stuff. 
llvm-svn: 35049
 2007-03-09 19:46:06 +00:00
Evan Cheng
d7201d12af Add comments about LSR / ARM. 
llvm-svn: 35048
 2007-03-09 19:35:33 +00:00
Evan Cheng
2e6f19d8c8 Unfinished work and ideas related to register scavenger. 
llvm-svn: 35047
 2007-03-09 19:34:51 +00:00
Reid Spencer
f860fd3370 For PR1245: 
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 
llvm-svn: 35045
 2007-03-09 19:18:59 +00:00
Dale Johannesen
23c2498e23 Add some observations from CoreGraphics benchmark. Remove register 
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 
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 
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. 
llvm-svn: 35040
 2007-03-09 08:29:08 +00:00
Evan Cheng
0049744cd8 Avoid variable shadowing. 
llvm-svn: 35039
 2007-03-09 06:02:17 +00:00
Bill Wendling
4e2fff5898 Don't use std::hex. 
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. 
llvm-svn: 35037
 2007-03-08 23:26:50 +00:00
Evan Cheng
8685e7d770 Test inline asm modifier 'c'. 
llvm-svn: 35036
 2007-03-08 22:45:31 +00:00
Evan Cheng
7ef8db2fb5 Implement inline asm modifier c. 
llvm-svn: 35035
 2007-03-08 22:42:46 +00:00
Chris Lattner
cec3666863 upgrade this testcase, add test for fp immediate to memory operand. 
llvm-svn: 35034
 2007-03-08 22:33:06 +00:00
Chris Lattner
dfe5b3bd1d implement support for floating point constants used as inline asm memory operands. 
llvm-svn: 35033
 2007-03-08 22:29:47 +00:00
Bill Wendling
4fbc327c54 Add MMX arithmetic testcase. 
llvm-svn: 35032
 2007-03-08 22:14:51 +00:00
Bill Wendling
5fef3fd7e7 Added "padd*" support for MMX. Added MMX move stuff to X86InstrInfo so that 
moves, loads, etc. are recognized.

llvm-svn: 35031
 2007-03-08 22:09:11 +00:00
Evan Cheng
6445ce2423 Fix a typo. 
llvm-svn: 35030
 2007-03-08 21:59:30 +00:00
Evan Cheng
511c8f6a24 Fix test case. 
llvm-svn: 35029
 2007-03-08 19:27:32 +00:00