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a2d8b5e7a1
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1712 Commits

Author SHA1 Message Date
Reid Spencer
a2d8b5e7a1 Add the NoUnwind function attribute. 
llvm-svn: 35260
 2007-03-22 02:14:48 +00:00
Devang Patel
3a426e1c86 DominanceFrontier::calculate(). 
Avoid recursion, Use iterative algorithm.

llvm-svn: 35225
 2007-03-20 21:25:31 +00:00
Devang Patel
18146cf2a2 LoopSimplify::FindPHIToPartitionLoops() 
Use ETForest instead of DominatorSet.

llvm-svn: 35221
 2007-03-20 20:18:12 +00:00
Chris Lattner
6dbed4d4ca Fix a nasty memory leak, caused by my revamp of the value symbol table. 
llvm-svn: 35195
 2007-03-20 00:18:10 +00:00
Reid Spencer
7d20e42a97 Allow ConstantInt::get(Ty, uint64_t) to interpret the 64-bit values as a 
negative number. This is needed to fix test/Assembler/2007-03-19-NegValue.ll

llvm-svn: 35181
 2007-03-19 20:39:08 +00:00
Reid Spencer
135ca5e8c4 For PR1258: 
Radically simplify the SlotMachine. There is no need to keep Value planes
around any more. This change causes slot numbering to number all un-named,
non-void values starting at 0 and incrementing monotonically through the
function, regardless of type (including BasicBlocks). Getting slot numbers
is now a single lookup operation instead of a double lookup.

llvm-svn: 35171
 2007-03-19 18:32:53 +00:00
Devang Patel
94228897e7 Speed Up Pass Manager. 
- Check Immutableness before searching PreservedSet.
- Avoid unnecessary traversal while setting Last User.

llvm-svn: 35028
 2007-03-08 19:05:01 +00:00
Evan Cheng
7513c95267 Added ContainsRelocations() to check if a constant might only be resolvable at load time. 
llvm-svn: 35014
 2007-03-08 00:59:12 +00:00
Devang Patel
b9e705f09e Keep track of higher level analysis. 
llvm-svn: 34974
 2007-03-06 17:52:53 +00:00
Devang Patel
45343b04b3 Keep track of inherited analysis. For example, if a loop pass does not 
preserve dominator info then it should update parent FPPassManager's
available analysis info to reflect this.

llvm-svn: 34942
 2007-03-06 01:55:46 +00:00
Devang Patel
edbde240be Add preparePassManager() hook. This allows each pass to check whether 
current active pass manager is appropriate or not.

A loop pass may consider current LPPassManager in appropraite if loop
pass is not preserving analysis information that is used by other
passes managed by current LPPassManager. In such situation, loop pass
can pop current LPPassManager from the PMStack using this  hook
and use new LPPassManager for itself.

llvm-svn: 34941
 2007-03-06 01:06:16 +00:00
Devang Patel
79495d839e Current pass manager, not the parent pass manager, assumes the role of 
last user when one of the managed pass uses info provided by parent pass
manager.

This was exposed by LPPassManager work.

llvm-svn: 34936
 2007-03-05 22:57:49 +00:00
Devang Patel
6668a341ae Avoid constructing std::strings unless pass debugging is ON. 
llvm-svn: 34933
 2007-03-05 20:01:30 +00:00
Devang Patel
ca90313b39 Account for time consumed by releaseMemory() properly. 
llvm-svn: 34932
 2007-03-05 18:20:51 +00:00
Jeff Cohen
98c99a3a02 Unbreak VC++ build. 
llvm-svn: 34917
 2007-03-05 00:00:42 +00:00
Reid Spencer
6037b564a0 Fix constant folding of fp->int bitcast for vectors. 
llvm-svn: 34880
 2007-03-03 08:32:46 +00:00
Reid Spencer
1f970769e8 Prefer non-virtual calls to ConstantInt::isZero over virtual calls to 
Constant::isNullValue() in situations where it is possible.

llvm-svn: 34821
 2007-03-02 00:28:52 +00:00
Reid Spencer
5790924b21 Use the APInt versions of the bit-wise conversions of float/double to int 
and back. While this is not strictly necessary, it does pave the way for
future changes in casting. It should now be possible to improve vector
casting to deal with un-equal fp/int sizes.

llvm-svn: 34808
 2007-03-01 20:44:23 +00:00
Reid Spencer
5d9574f37e Use modern variable name. ConstantUnsignedInt is long since dead. No 
functional change with this patch.

llvm-svn: 34806
 2007-03-01 20:27:41 +00:00
Reid Spencer
b0a7bfa105 Use a simpler constructor when constructing ConstantInst. 
llvm-svn: 34793
 2007-03-01 19:31:12 +00:00
Reid Spencer
b4e877c488 Drop the ConstantInt(const Type&, const APInt&) constructor. It is 
redundant and more verbose than the ConstantInt(const APInt&) constructor.

llvm-svn: 34792
 2007-03-01 19:30:34 +00:00
Reid Spencer
32d0051c64 Reduce #includage by taking a method out of line. 
llvm-svn: 34774
 2007-03-01 04:02:06 +00:00
Reid Spencer
f632e1cd14 Provide an ICmpInst::makeConstantRange to generate a ConstantRange value 
from a predicate and an APInt. This is removed from ConstantRange class
so that ConstantRange doesn't have to depend on lib/VMCore.

llvm-svn: 34760
 2007-02-28 22:00:54 +00:00
Reid Spencer
a9d0cc903b Implement a convenience method to construct a ConstantInt directly from an 
APInt. The implied type is the integer type that corresponds to the bit
width of the APInt.

llvm-svn: 34757
 2007-02-28 19:50:21 +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
Reid Spencer
8178fd7bd5 Adjust to changes in the APInt interface. 
llvm-svn: 34681
 2007-02-27 20:25:25 +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
Devang Patel
89791371ce Make getPassManagerType() const. 
llvm-svn: 34669
 2007-02-27 15:00:39 +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
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
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
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
Chris Lattner
cdbef93603 reapply my previous patch with a bugfix. 
llvm-svn: 34627
 2007-02-26 05:02:39 +00:00
Chris Lattner
96aac36de5 revert my previous change, something strange is happening. 
llvm-svn: 34626
 2007-02-26 04:43:19 +00:00
Chris Lattner
50be7cd320 Rework GlobalValue::removeDeadConstantUsers to always remove dead constant 
exprs hanging off a global, even if the global is not otherwise dead.  This
requires some tricky iterator gymnastics.

This implements Transforms/GlobalOpt/constantexpr-dangle.ll by deleting a
constantexpr that made it appear that the address of the function was taken.

llvm-svn: 34608
 2007-02-25 21:06:13 +00:00
Chris Lattner
2fbfbcd9cd disable some noisy debug output 
llvm-svn: 34606
 2007-02-25 20:42:59 +00:00
Chris Lattner
5480ffb904 Fix Transforms/ConstProp/2007-02-23-sdiv.ll and PR1215 
llvm-svn: 34548
 2007-02-24 01:19:50 +00:00
Chris Lattner
0eb72353e4 Refactor the setName stuff, moving it down the inheritance hierarchy, to 
solve a crash in -instcombine -debug that was hit while investigating PR1217

llvm-svn: 34544
 2007-02-24 00:55:48 +00:00
Evan Cheng
0af52bec6b This cast broke lots of tests. 
llvm-svn: 34457
 2007-02-20 21:30:56 +00:00
Chris Lattner
be8f4becf4 switch ConstantFP's from ValueMap to DenseMap, which is much faster to query 
and is more memory efficient.

llvm-svn: 34446
 2007-02-20 07:17:17 +00:00
Chris Lattner
37a49eb48d cleanup ConstantInt to use a single DenseMap for uniquing instead of the 
heavy-weight ValueMap class.  This reduces mem usage bc reading kc++ by 29K,
even though it only creates 2955 constant ints!

llvm-svn: 34445
 2007-02-20 06:39:57 +00:00
Chris Lattner
adb16a1a53 Make ConstantInt::getTrue/getFalse be llvm_shutdown safe. 
llvm-svn: 34443
 2007-02-20 06:11:36 +00:00
Chris Lattner
c8db23f8a7 Clean up the internals of the ConstantInt machinery 
llvm-svn: 34441
 2007-02-20 05:55:46 +00:00
Chris Lattner
26dc9c9dc8 simplify some code that was not llvm_shutdown safe 
llvm-svn: 34440
 2007-02-20 05:46:39 +00:00
Chris Lattner
502e4b271a remove dead method 
llvm-svn: 34436
 2007-02-20 05:29:47 +00:00
Chris Lattner
f501d245c8 llvm-gcc issue fixed, revert reversal :) 
llvm-svn: 34425
 2007-02-19 20:01:23 +00:00
Chris Lattner
8f9dc788c1 remove warning 
llvm-svn: 34424
 2007-02-19 19:46:17 +00:00
Evan Cheng
936deee790 Temporarily reverting the patch. It's breaking llvm-gcc build. 
llvm-svn: 34423
 2007-02-19 19:23:41 +00:00