Lauro Ramos Venancio
5e0a3ef555
Fix a bug in getFrameRegister.
...
Reported by Raul Herbster.
llvm-svn: 36262
2007-04-19 14:09:38 +00:00
Zhou Sheng
9339daf407
Make use of ConstantInt::isZero instead of ConstantInt::isNullValue.
...
llvm-svn: 36261
2007-04-19 05:39:12 +00:00
Zhou Sheng
2cb77f2d6c
Make the operations of APInt variables more efficient.
...
llvm-svn: 36260
2007-04-19 05:35:00 +00:00
Evan Cheng
91e0637ed3
Revert Owen's last check-in. This is breaking Mac OS X / PPC llvm-gcc bootstrap.
...
llvm-svn: 36258
2007-04-18 22:39:00 +00:00
Dan Gohman
bdb94669ba
Fix the spelling of the prefetchnta instruction.
...
llvm-svn: 36256
2007-04-18 14:09:14 +00:00
Owen Anderson
16d1fd6ec8
Revert changes that caused breakage.
...
llvm-svn: 36255
2007-04-18 06:46:57 +00:00
Owen Anderson
781cbecd34
Switch more uses of DominatorTree over to ETForest.
...
llvm-svn: 36254
2007-04-18 05:43:13 +00:00
Owen Anderson
c3aa967684
Use ETForest instead of DominatorTree.
...
llvm-svn: 36252
2007-04-18 05:25:43 +00:00
Evan Cheng
fbbdb92c9d
VarInfo::UsedBlocks is no longer used. Remove.
...
llvm-svn: 36250
2007-04-18 05:04:38 +00:00
Owen Anderson
c07f29d206
Use ETForest instead of DominatorTree.
...
llvm-svn: 36249
2007-04-18 04:55:33 +00:00
Owen Anderson
d8bb3aca7b
Use new ETForest accessor.
...
llvm-svn: 36248
2007-04-18 04:46:35 +00:00
Owen Anderson
909895b564
Use ETForest instead of DominatorTree.
...
llvm-svn: 36247
2007-04-18 04:39:32 +00:00
Chris Lattner
ea3c945817
allow SRL to simplify its operands, as it doesn't demand all bits as input.
...
llvm-svn: 36245
2007-04-18 03:06:49 +00:00
Chris Lattner
4ce8602d58
When replacing a node in SimplifyDemandedBits, if the old node used any
...
single-use nodes, they will be dead soon. Make sure to remove them before
processing other nodes. This implements CodeGen/X86/shl_elim.ll
llvm-svn: 36244
2007-04-18 03:05:22 +00:00
Chris Lattner
639f807048
fix a pasto
...
llvm-svn: 36242
2007-04-18 03:01:40 +00:00
Evan Cheng
1325999a14
Don't populate TryAgainList when coalescing only physical registers with virtual registers.
...
llvm-svn: 36240
2007-04-18 02:30:19 +00:00
Devang Patel
ffbee86b8e
Cache DT[*SI] lookup.
...
llvm-svn: 36239
2007-04-18 01:19:55 +00:00
Chris Lattner
0ee78670b8
don't access argument list of prototypes
...
llvm-svn: 36238
2007-04-18 00:57:22 +00:00
Devang Patel
daba9f7064
Fix
...
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047971.html
llvm-svn: 36236
2007-04-18 00:53:01 +00:00
Evan Cheng
eecfac47a8
Increment use count of new virtuals created during PHI elimination.
...
llvm-svn: 36233
2007-04-18 00:36:11 +00:00
Chris Lattner
af290edea7
Be more careful when inserting reused instructions. This fixes CodeGen/Generic/2007-04-17-lsr-crash.ll
...
llvm-svn: 36231
2007-04-17 23:43:50 +00:00
Evan Cheng
fe5856c4f3
Oops. Didn't mean to check in a quick hack.
...
llvm-svn: 36227
2007-04-17 23:33:39 +00:00
Chris Lattner
1677782ef0
Fix a bug in my previous patch, grabbing the shift amount width from the
...
wrong operand.
llvm-svn: 36223
2007-04-17 22:53:02 +00:00
Chris Lattner
87296c2580
dag combiner just got better at pruning bits. This fixes CodeGen/ARM/rev.ll
...
llvm-svn: 36222
2007-04-17 22:39:58 +00:00
Chris Lattner
b55496c660
Fold (x << c1)>> c2 into a single shift if the bits shifted out aren't used.
...
This compiles:
int baz(long long a) { return (short)(((int)(a >>24)) >> 9); }
into:
_baz:
srwi r2, r3, 1
extsh r3, r2
blr
on PPC, instead of:
_baz:
slwi r2, r3, 8
srwi r2, r2, 9
extsh r3, r2
blr
GCC produces:
_baz:
srwi r10,r4,24
insrwi r10,r3,24,0
srawi r9,r3,24
srawi r3,r10,9
extsh r3,r3
blr
This implements CodeGen/PowerPC/shl_elim.ll
llvm-svn: 36221
2007-04-17 21:14:16 +00:00
Evan Cheng
48352d7a71
Copy coalescing change to prevent a physical register from being pin to a
...
long live interval that has low usage density.
1. Change order of coalescing to join physical registers with virtual
registers first before virtual register intervals become too long.
2. Check size and usage density to determine if it's worthwhile to join.
3. If joining is aborted, assign virtual register live interval allocation
preference field to the physical register.
4. Register allocator should try to allocate to the preferred register
first (if available) to create identify moves that can be eliminated.
llvm-svn: 36218
2007-04-17 20:32:26 +00:00
Evan Cheng
c5d2df366a
Add a register allocation preference field; add a method to compute size of a live interval.
...
llvm-svn: 36216
2007-04-17 20:25:11 +00:00
Evan Cheng
023342b277
Change getAllocatableSet() so it returns allocatable registers for a specific register class.
...
llvm-svn: 36215
2007-04-17 20:23:34 +00:00
Evan Cheng
94e0223e55
Keep track of number of uses within the function per virtual register.
...
llvm-svn: 36214
2007-04-17 20:22:11 +00:00
Anton Korobeynikov
60de2ce283
Add comment
...
llvm-svn: 36213
2007-04-17 19:34:00 +00:00
Chris Lattner
9ad682ad80
SIGN_EXTEND_INREG does not demand its top bits. Give SimplifyDemandedBits
...
a chance to hack on it. This compiles:
int baz(long long a) { return (short)(((int)(a >>24)) >> 9); }
into:
_baz:
slwi r2, r3, 8
srwi r2, r2, 9
extsh r3, r2
blr
instead of:
_baz:
srwi r2, r4, 24
rlwimi r2, r3, 8, 0, 23
srwi r2, r2, 9
extsh r3, r2
blr
This implements CodeGen/PowerPC/sign_ext_inreg1.ll
llvm-svn: 36212
2007-04-17 19:03:21 +00:00
Dan Gohman
a7e1f3c85b
Spell doFinalization right, so that it is a proper virtual override and
...
gets called.
llvm-svn: 36208
2007-04-17 18:21:36 +00:00
Chris Lattner
8e28e7654d
remove use of BasicBlock::getNext
...
llvm-svn: 36205
2007-04-17 18:09:47 +00:00
Chris Lattner
af5c203dbd
add a note
...
llvm-svn: 36203
2007-04-17 18:03:00 +00:00
Chris Lattner
d503b61318
remove use of BasicBlock::getNext
...
llvm-svn: 36202
2007-04-17 17:54:12 +00:00
Chris Lattner
e4323f863a
Remove use of Instruction::getNext
...
llvm-svn: 36201
2007-04-17 17:52:45 +00:00
Chris Lattner
e5d747e0be
eliminate use of Instruction::getNext()
...
llvm-svn: 36200
2007-04-17 17:51:03 +00:00
Chris Lattner
7b6a5d7956
remove use of Instruction::getNext
...
llvm-svn: 36199
2007-04-17 17:47:54 +00:00
Chris Lattner
058a0c6977
eliminate use of Instruction::getPrev(). Patch by Gabor Greif in 2005.
...
llvm-svn: 36198
2007-04-17 17:38:28 +00:00
Chris Lattner
09139c7951
eliminate a use of Instruction::getPrev(), patch by Gabor Greif in 2005.
...
llvm-svn: 36197
2007-04-17 17:36:12 +00:00
Chris Lattner
c7109ece27
rename X86FunctionInfo to X86MachineFunctionInfo to match the header file
...
it is defined in.
llvm-svn: 36196
2007-04-17 17:21:52 +00:00
Anton Korobeynikov
9bc4b792bf
Implemented correct stack probing on mingw/cygwin for dynamic alloca's.
...
Also, fixed static case in presence of eax livin. This fixes PR331
PS: Why don't we still have push/pop instructions? :)
llvm-svn: 36195
2007-04-17 09:20:00 +00:00
Chris Lattner
db7de8e497
merge several fields in GlobalValue to use the same word, move CallingConv
...
field into SubclassData in Value. This shrinks GlobalVAlue from 48->40
bytes, Function from 88->76, and GlobalVariable from 76->68. This trims
4640 bytes off my testcase, reading a bc file without materializing any
functions.
llvm-svn: 36192
2007-04-17 04:31:29 +00:00
Andrew Lenharth
c894d4e3ce
Use this nifty Constraints thing and fix the inverted conditional moves
...
llvm-svn: 36191
2007-04-17 04:07:59 +00:00
Chris Lattner
cc56e116fe
The (negative) offset from a SymbolTableListTraits-using ilist to its container
...
object is always constant. As such, evaluate it at compile time instead of storing
it as an ivar in SymbolTableListTraits. This shrinks every SymbolTableListTraits
ilist by a word, shrinking BasicBlock from 44->40 bytes, Function from 96->88 bytes,
and Module from 60->52 bytes.
llvm-svn: 36189
2007-04-17 04:04:14 +00:00
Chris Lattner
71a21677f4
Refactor SymbolTableListTraits to only have a single pointer in it, instead
...
of two. This shrinkifies Function by 8 bytes (104->96) and Module by 8
bytes (68->60). On a testcase of mine, this reduces the memory used to
read a module header from 565680b to 561024, a little over 4K.
llvm-svn: 36188
2007-04-17 03:26:42 +00:00
Chris Lattner
be225f5300
SSE4 is apparently public now.
...
llvm-svn: 36185
2007-04-17 00:02:37 +00:00
Reid Spencer
67ab398ba3
Make long line fit in 80 cols.
...
llvm-svn: 36183
2007-04-16 23:32:28 +00:00
Devang Patel
7d868316fd
Fix
...
http://lists.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20070416/047888.html
llvm-svn: 36182
2007-04-16 23:03:45 +00:00
Reid Spencer
b640dc70f9
Fix problems in the PartSet lowering having to do with incorrect bit width.
...
llvm-svn: 36180
2007-04-16 22:21:14 +00:00