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17525 Commits

Author SHA1 Message Date
Evan Cheng
fa23d8e51f Start making use of RegScavenger. 
llvm-svn: 34708
 2007-02-28 00:21:58 +00:00
Evan Cheng
116f97f2c7 PEI now passes a RegScavenger ptr to eliminateFrameIndex. 
llvm-svn: 34707
 2007-02-28 00:21:17 +00:00
Evan Cheng
ee2e5de4fb MRegisterInfo disowns RegScavenger. It's immutable. 
llvm-svn: 34706
 2007-02-28 00:17:36 +00:00
Reid Spencer
e306ef6798 Join two lines that can be joined. 
llvm-svn: 34705
 2007-02-27 23:49:07 +00:00
Reid Spencer
24430077d5 Pull out the stops. 
llvm-svn: 34703
 2007-02-27 23:33:03 +00:00
Reid Spencer
58f7a497bb Remove some redundancy. 
llvm-svn: 34702
 2007-02-27 23:27:26 +00:00
Evan Cheng
4357509984 Minor tweak. Allocate r0 to r3 in reverse order, r3 is least likely to be livein to a function. 
llvm-svn: 34701
 2007-02-27 23:03:55 +00:00
Evan Cheng
ec12bdd7ea Some more code clean up. 
llvm-svn: 34700
 2007-02-27 22:58:43 +00:00
Chris Lattner
da909a2df7 reenable generation of CC info 
llvm-svn: 34699
 2007-02-27 22:12:19 +00:00
Evan Cheng
2402ddad92 Oops. 
llvm-svn: 34698
 2007-02-27 22:10:52 +00:00
Reid Spencer
edbe747bab Implement countLeadingOnes() and getMinSignedBits(). This helps to minimize 
the bit width of negative numbers by computing the minimum bit width for a
negative value. E.g. 0x1800000000000000 could be just 0x8000000000000000

llvm-svn: 34695
 2007-02-27 21:59:26 +00:00
Evan Cheng
b314459812 Back out previous commit temporarily. 
llvm-svn: 34694
 2007-02-27 21:47:22 +00:00
Evan Cheng
a19dd6f388 Let MRegisterInfo now owns RegScavenger; eliminateFrameIndex must preserve register kill info. 
llvm-svn: 34692
 2007-02-27 21:12:35 +00:00
Evan Cheng
4c4e56df47 Let MRegisterInfo now owns RegScavenger. 
llvm-svn: 34691
 2007-02-27 21:10:33 +00:00
Evan Cheng
f03b87c1ff RegScavenger interface change to make it more flexible. 
llvm-svn: 34690
 2007-02-27 21:09:48 +00:00
Chris Lattner
0d05dc2523 implement CCMatchIfCC in terms of CCMatchIf 
llvm-svn: 34685
 2007-02-27 20:45:02 +00:00
Chris Lattner
4d29a90170 build cc info 
llvm-svn: 34684
 2007-02-27 20:44:31 +00:00
Reid Spencer
8178fd7bd5 Adjust to changes in the APInt interface. 
llvm-svn: 34681
 2007-02-27 20:25:25 +00:00
Reid Spencer
9e66d0921a Improve APInt interface: 
1. Add unsigned and signed versions of methods so a "bool" argument doesn't
   need to be passed in.
2. Make the various getMin/getMax functions all be inline since they are
   so simple.
3. Simplify sdiv and srem code.

llvm-svn: 34680
 2007-02-27 20:24:31 +00:00
Reid Spencer
e0c8670bfe Conform to single person attribution in file comment. 
llvm-svn: 34678
 2007-02-27 19:31:09 +00:00
Reid Spencer
a3b5b71616 For PR1205: 
Implement review feedback:
1. Use new APInt::RoundDoubleToAPInt interface to specify the bit width so
   that we don't have to truncate or extend in constant folding.
2. Fix a pasteo in SDiv that prevented a check for overflow.
3. Fix the shift operators: undef happens when the shift amount is equal
   to the bitwidth.

llvm-svn: 34677
 2007-02-27 19:29:54 +00:00
Reid Spencer
b61f731ddd 1. Fix three serious bugs in the comparison code. 
2. Change RoundDoubleToAPInt to take a bit width parameter. Use that
   parameter to limit the bit width of the result.

llvm-svn: 34673
 2007-02-27 18:23:40 +00:00
Chris Lattner
da49dee51d a note 
llvm-svn: 34670
 2007-02-27 17:21:09 +00:00
Devang Patel
89791371ce Make getPassManagerType() const. 
llvm-svn: 34669
 2007-02-27 15:00:39 +00:00
Nicolas Geoffray
a144ebf568 Fix parenthesis for BCTRL_{ELF|Macho} test. 
llvm-svn: 34668
 2007-02-27 13:10:41 +00:00
Nicolas Geoffray
a562e5c1c5 Differentiate between the MachO and the ELF ABI the CALL instruction. 
llvm-svn: 34667
 2007-02-27 13:01:19 +00:00
Jim Laskey
f5b5a3cf77 Duplicate use of LR, take 2. 
llvm-svn: 34666
 2007-02-27 11:55:45 +00:00
Reid Spencer
b05cb31bdf Allow the AsmWriter to print out arbitrary precision integers. 
llvm-svn: 34664
 2007-02-27 08:34:09 +00:00
Reid Spencer
74764708fa Correct the implelmentation of ConstantInt::getAllOnesValue() for bit 
widths > 64 bits.

llvm-svn: 34663
 2007-02-27 07:57:53 +00:00
Reid Spencer
1e498b04f5 Get rid of extraneous // in file comment. 
llvm-svn: 34662
 2007-02-27 07:35:18 +00:00
Chris Lattner
90c768b913 Add calling convention info 
llvm-svn: 34661
 2007-02-27 06:59:52 +00:00
Reid Spencer
de3bbe0489 For PR1205: 
Implement constant folding via APInt instead of uint64_t.

llvm-svn: 34660
 2007-02-27 06:23:51 +00:00
Chris Lattner
9f0e5d8b03 move target independent calling convention stuff to TargetCallingConv.td 
llvm-svn: 34659
 2007-02-27 05:57:32 +00:00
Chris Lattner
2b737abea1 fill in some holes 
llvm-svn: 34658
 2007-02-27 05:51:05 +00:00
Chris Lattner
9117648533 switch x86-64 return value lowering over to using same mechanism as argument 
lowering uses.

llvm-svn: 34657
 2007-02-27 05:28:59 +00:00
Chris Lattner
11a1c2113c Minor refactoring of CC Lowering interfaces 
llvm-svn: 34656
 2007-02-27 05:13:54 +00:00
Chris Lattner
e34136f6d5 move CC Lowering stuff to its own public interface 
llvm-svn: 34655
 2007-02-27 04:43:02 +00:00
Chris Lattner
cac44e283d refactor x86-64 argument lowering yet again, this time eliminating templates, 
'clients', etc, and adding CCValAssign instead.

llvm-svn: 34654
 2007-02-27 04:18:15 +00:00
Chris Lattner
ae7cc3e0e0 ConstantFolding.cpp/h -> ConstantFold.cpp/h to avoid confusion with 
lib/Analysis/ConstantFolding.

llvm-svn: 34653
 2007-02-27 03:05:06 +00:00
Evan Cheng
f54dbab209 Backing out Jim's LR spill changes. This was causing llvm-gcc bootstrapping 
to infinite loop:
PPCMachineFunctionInfo.h updated: 1.2 -> 1.3
PPCRegisterInfo.cpp updated: 1.110 -> 1.111
PPCRegisterInfo.h updated: 1.28 -> 1.29

llvm-svn: 34652
 2007-02-27 02:55:29 +00:00
Evan Cheng
341fc2bf88 forward() should not increment internal iterator. Its client may insert instruction between now and next forward() call. 
llvm-svn: 34649
 2007-02-27 01:58:48 +00:00
Reid Spencer
67498a4072 Simplify and document RoundDoubleToAPInt. 
llvm-svn: 34648
 2007-02-27 01:28:10 +00:00
Reid Spencer
c8cc0f997e For PR1205: 
Implement the first step towards arbitrary precision integer support in
LLVM. The APInt class provides arbitrary precision arithmetic and value
representation. This patch changes ConstantInt to use APInt as its value
representation without supporting bit widths > 64 yet. That change will
come after ConstantFolding handles bit widths > 64 bits.

llvm-svn: 34647
 2007-02-26 23:54:03 +00:00
Reid Spencer
97d7d18442 1. Make sure all delete operators of arrays use the array form of delete. 
2. Rewrite operator=(const APInt& RHS) to allow the RHS to be a different
   bit width than the LHS. This makes it possible to use APInt as the key
   of a DenseMap, as needed for the IntConstants map in Constants.cpp
3. Fix operator=(uint64_t) to clear unused bits in case the client assigns
   a value that has more bits than the APInt allows.
4. Assert that bit widths are equal in operator==
5. Revise getHashValue() to put the bit width in the low order six bits.
   This should help to make i1 0, i2 0, ... i64 0 all distinct in the
   IntConstants DenseMap.

llvm-svn: 34646
 2007-02-26 23:38:21 +00:00
Evan Cheng
0fd5788077 Joining an interval with a dead copy instruction. Shorten the live range to the last use. 
llvm-svn: 34645
 2007-02-26 21:37:37 +00:00
Reid Spencer
2dc808284e Implement the getHashValue method. 
Fix toString use of getValue to use getZExtValue()

llvm-svn: 34642
 2007-02-26 21:02:27 +00:00
Devang Patel
c13055b251 Use efficient container SmallPtrSet 
llvm-svn: 34640
 2007-02-26 20:22:50 +00:00
Chris Lattner
d4cd3a31e6 always lower to RETFLAG, never leave it as just ret. 
llvm-svn: 34639
 2007-02-26 19:44:02 +00:00
Devang Patel
b0b949f93e Do not unswitch loop on same value again and again. 
llvm-svn: 34638
 2007-02-26 19:31:58 +00:00
Chris Lattner
656996aab8 fix attribution 
llvm-svn: 34637
 2007-02-26 18:56:07 +00:00