Commit Graph

164 Commits

Author SHA1 Message Date
Lauro Ramos Venancio 41223586a2 Fix build error.
llvm-svn: 36648
2007-05-02 20:37:47 +00:00
Devang Patel 09f162ca6a Do not use typeinfo to identify pass in pass manager.
llvm-svn: 36632
2007-05-01 21:15:47 +00:00
Reid Spencer a3cfb8a683 Revert last patch. It was already fixed.
llvm-svn: 36102
2007-04-16 02:24:41 +00:00
Reid Spencer 8be22e4e04 For PR1336:
Fix a div-by-zero bug noticed by APInt. This fixes:
test/Transforms/IndVarsSimplify/exit_value_tests.llx

llvm-svn: 36099
2007-04-16 01:48:37 +00:00
Chris Lattner cad61e81c1 Fix a nasty bug introduced when apint'ified. This fixes
Transforms/IndVarsSimplify/exit_value_tests.llx

llvm-svn: 36081
2007-04-15 19:52:49 +00:00
Zhou Sheng 2852d99a48 Eliminate unnecessary APInt construction.
llvm-svn: 35740
2007-04-07 17:48:27 +00:00
Zhou Sheng c0297896aa Make APInt variables do the computation stuffs instead of
ConstantExpr::getXX if possible.

llvm-svn: 35738
2007-04-07 17:40:57 +00:00
Zhou Sheng 1459c73481 Eliminate unnecessary zext/trunc stuffs.
llvm-svn: 35737
2007-04-07 17:12:38 +00:00
Chris Lattner a3e0bb4ebb Treat xor of signbit like an add.
llvm-svn: 35586
2007-04-02 05:41:38 +00:00
Reid Spencer 69904f939a Guard further against APInt operations with operands of unequal bit width.
llvm-svn: 34897
2007-03-04 01:25:35 +00:00
Reid Spencer e1336b4086 Fix an unequal bitwidth issue.
llvm-svn: 34831
2007-03-02 02:59:25 +00:00
Reid Spencer 2e54a15943 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 caace8cffd Make it possible to create an SCEVUnknown from an APInt as well as an int.
llvm-svn: 34816
2007-03-01 22:28:51 +00:00
Reid Spencer fad3f247e4 Construct ConstantInt with simpler constructor.
llvm-svn: 34795
2007-03-01 19:32:33 +00:00
Reid Spencer 6ba8edc789 Fix last night's 445.gobmk breakage which was caused by comparison of
APInt's of unequal bitwidth.

llvm-svn: 34790
2007-03-01 17:17:21 +00:00
Reid Spencer 6a44033465 Remove the "isSigned" parameters from ConstantRange. It turns out they
are not needed as the results are the same with or without it.

Patch by Nicholas Lewycky.

llvm-svn: 34782
2007-03-01 07:54:15 +00:00
Reid Spencer 983e3b37de APIntify various computations in ScalarEvolution
llvm-svn: 34780
2007-03-01 07:25:48 +00:00
Reid Spencer b0170c4259 For PR1205:
Make GetConstantFactor compute its result using an APInt.

llvm-svn: 34765
2007-02-28 23:31:17 +00:00
Reid Spencer d373b9dc59 For PR1205:
Adjust to changes in ConstantRange interface.

llvm-svn: 34762
2007-02-28 22:03:51 +00:00
Reid Spencer 3a7e9d8e75 For PR1205:
Remove ConstantInt from ConstantRange interface and adjust its users to
compensate.

llvm-svn: 34758
2007-02-28 19:57:34 +00:00
Reid Spencer 56f784d12d For PR1205:
First round of ConstantRange changes. This makes all CR constructors use
only APInt and not use ConstantInt. Clients are adjusted accordingly.

llvm-svn: 34756
2007-02-28 18:57:32 +00:00
Reid Spencer 2341c22ec7 Changes to support making the shift instructions be true BinaryOperators.
This feature is needed in order to support shifts of more than 255 bits
on large integer types.  This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
   shl i32 %X, 1
instead of
   shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.

llvm-svn: 33776
2007-02-02 02:16:23 +00:00
Chris Lattner 373dee0947 The local "ConstantFold" method is now just a watered down version of
ConstantFoldInstOperands.  Switch to ConstantFoldInstOperands and remove
ConstantFold.

llvm-svn: 33683
2007-01-30 23:52:44 +00:00
Chris Lattner 8dbea5454d adjust to constant folding api changes.
llvm-svn: 33673
2007-01-30 23:15:43 +00:00
Reid Spencer a94d394ad2 For PR1043:
This is the final patch for this PR. It implements some minor cleanup
in the use of IntegerType, to wit:
1. Type::getIntegerTypeMask -> IntegerType::getBitMask
2. Type::Int*Ty changed to IntegerType* from Type*
3. ConstantInt::getType() returns IntegerType* now, not Type*

This also fixes PR1120.

Patch by Sheng Zhou.

llvm-svn: 33370
2007-01-19 21:13:56 +00:00
Jeff Cohen 9431075206 Unbreak VC++ build.
llvm-svn: 33242
2007-01-15 20:27:18 +00:00
Chris Lattner 03c4953cdd rename Type::isIntegral to Type::isInteger, eliminating the old Type::isInteger.
rename Type::getIntegralTypeMask to Type::getIntegerTypeMask.

This makes naming much more consistent.  For example, there are now no longer any
instances of IntegerType that are not considered isInteger! :)

llvm-svn: 33225
2007-01-15 02:27:26 +00:00
Chris Lattner 4442e4b401 Update code to eliminate calls to isInteger, calling isIntegral instead.
llvm-svn: 33220
2007-01-15 01:58:56 +00:00
Chris Lattner 5a55476211 Fix PR1101 and Analysis/ScalarEvolution/trip-count.ll
llvm-svn: 33193
2007-01-14 01:24:47 +00:00
Chris Lattner 19cfb04d04 don't discriminate against bool
llvm-svn: 33128
2007-01-12 18:28:58 +00:00
Reid Spencer cddc9dfe97 Implement review feedback for the ConstantBool->ConstantInt merge. Chris
recommended that getBoolValue be replaced with getZExtValue and that
get(bool) be replaced by get(const Type*, uint64_t). This implements
those changes.

llvm-svn: 33110
2007-01-12 04:24:46 +00:00
Reid Spencer 542964f55b Rename BoolTy as Int1Ty. Patch by Sheng Zhou.
llvm-svn: 33076
2007-01-11 18:21:29 +00:00
Zhou Sheng 75b871fb1e For PR1043:
Merge ConstantIntegral and ConstantBool into ConstantInt.
Remove ConstantIntegral and ConstantBool from LLVM.

llvm-svn: 33073
2007-01-11 12:24:14 +00:00
Reid Spencer 7928c2fb9c Convert uses of getPrimitiveSize that should be getPrimitiveSizeInBits.
llvm-svn: 33003
2007-01-08 01:26:33 +00:00
Chris Lattner 18954852ae Fix PR1015 and Transforms/IndVarsSimplify/2007-01-06-TripCount.ll, a
miscompilation of Qt.

llvm-svn: 32974
2007-01-07 02:24:26 +00:00
Chris Lattner 39087c7127 cast of int to bool no longer does a compare, rendering this fixme
obsolete

llvm-svn: 32972
2007-01-07 02:05:20 +00:00
Reid Spencer c635f47d9a For PR950:
This patch replaces signed integer types with signless ones:
1. [US]Byte -> Int8
2. [U]Short -> Int16
3. [U]Int   -> Int32
4. [U]Long  -> Int64.
5. Removal of isSigned, isUnsigned, getSignedVersion, getUnsignedVersion
   and other methods related to signedness. In a few places this warranted
   identifying the signedness information from other sources.

llvm-svn: 32785
2006-12-31 05:48:39 +00:00
Reid Spencer 266e42b312 For PR950:
This patch removes the SetCC instructions and replaces them with the ICmp
and FCmp instructions. The SetCondInst instruction has been removed and
been replaced with ICmpInst and FCmpInst.

llvm-svn: 32751
2006-12-23 06:05:41 +00:00
Reid Spencer cfcec2caac Add a FIXME about signedness.
llvm-svn: 32732
2006-12-21 18:59:16 +00:00
Reid Spencer a8a90a2f97 Add some comments about things that can go away once signless types are in.
llvm-svn: 32727
2006-12-21 06:43:46 +00:00
Chris Lattner 57ef942306 eliminate static ctors from Statistics
llvm-svn: 32697
2006-12-19 22:30:33 +00:00
Chris Lattner 0a1e99317e Fix a bug in GetConstantFactor for affine expressions, in which the existing
code was wrong for things like 3+4*i.

llvm-svn: 32662
2006-12-19 01:16:02 +00:00
Reid Spencer bb65ebf9a1 Replace inferred getCast(V,Ty) calls with more strict variants.
Rename getZeroExtend and getSignExtend to getZExt and getSExt to match
the the casting mnemonics in the rest of LLVM.

llvm-svn: 32514
2006-12-12 23:36:14 +00:00
Reid Spencer 1ac0ab0850 Get even more accurate on the casting.
llvm-svn: 32478
2006-12-12 09:17:50 +00:00
Reid Spencer b341b0861d Change inferred getCast into specific getCast. Passes all tests.
llvm-svn: 32469
2006-12-12 05:05:00 +00:00
Chris Lattner 49b090ed61 teach scev to analyze X*4|1 like X*4+c. This allows us to produce:
LBB1_1: #bb
        movdqa (%esi), %xmm2
        movaps %xmm2, %xmm3
        punpcklbw %xmm0, %xmm3
        movaps %xmm3, %xmm4
        punpcklwd %xmm0, %xmm4
        cvtdq2ps %xmm4, %xmm4
        mulps %xmm1, %xmm4
        movaps %xmm4, (%edi)
        leal 1(,%eax,4), %ebx
        shll $4, %ebx
        punpckhwd %xmm0, %xmm3
        cvtdq2ps %xmm3, %xmm3
        mulps %xmm1, %xmm3
        movaps %xmm3, (%edx,%ebx)
        leal 2(,%eax,4), %ebx
        shll $4, %ebx
        punpckhbw %xmm0, %xmm2
        movaps %xmm2, %xmm3
        punpcklwd %xmm0, %xmm3
        cvtdq2ps %xmm3, %xmm3
        mulps %xmm1, %xmm3
        movaps %xmm3, (%edx,%ebx)
        leal 3(,%eax,4), %ebx
        shll $4, %ebx
        punpckhwd %xmm0, %xmm2
        cvtdq2ps %xmm2, %xmm2
        mulps %xmm1, %xmm2
        movaps %xmm2, (%edx,%ebx)
        addl $64, %edi
        incl %eax
        addl $16, %esi
        cmpl %ecx, %eax
        jne LBB1_1      #bb

instead of:

LBB1_1: #bb
        movdqa (%esi), %xmm2
        movaps %xmm2, %xmm3
        punpcklbw %xmm0, %xmm3
        movaps %xmm3, %xmm4
        punpcklwd %xmm0, %xmm4
        cvtdq2ps %xmm4, %xmm4
        mulps %xmm1, %xmm4
        movaps %xmm4, (%edi)
        leal 1(,%eax,4), %ebx
        shll $4, %ebx
        punpckhwd %xmm0, %xmm3
        cvtdq2ps %xmm3, %xmm3
        mulps %xmm1, %xmm3
        movaps %xmm3, (%edx,%ebx)
        leal 2(,%eax,4), %ebx
        shll $4, %ebx
        punpckhbw %xmm0, %xmm2
        movaps %xmm2, %xmm3
        punpcklwd %xmm0, %xmm3
        cvtdq2ps %xmm3, %xmm3
        mulps %xmm1, %xmm3
        movaps %xmm3, (%edx,%ebx)
        leal 3(,%eax,4), %ebx
        shll $4, %ebx
        punpckhwd %xmm0, %xmm2
        cvtdq2ps %xmm2, %xmm2
        mulps %xmm1, %xmm2
        movaps %xmm2, (%edx,%ebx)
        addl $64, %edi
        incl %eax
        addl $16, %esi
        cmpl %ecx, %eax
        jne LBB1_1      #bb

for a testcase.

llvm-svn: 32463
2006-12-12 02:26:09 +00:00
Chris Lattner b2f5973867 clarify some comments, simplify some checks, fix:
Regression/Transforms/IndVarsSimplify/2006-12-10-BitCast.ll

llvm-svn: 32420
2006-12-11 00:12:31 +00:00
Bill Wendling f3baad3ee1 Changed llvm_ostream et all to OStream. llvm_cerr, llvm_cout, llvm_null, are
now cerr, cout, and NullStream resp.

llvm-svn: 32298
2006-12-07 01:30:32 +00:00
Chris Lattner 700b873130 Detemplatize the Statistic class. The only type it is instantiated with
is 'unsigned'.

llvm-svn: 32279
2006-12-06 17:46:33 +00:00
Reid Spencer 0646eb415d Finally get the casting right in this file. Also, remove some unnecessary
casting because sdiv doesn't require operand signs to match any more.

llvm-svn: 32240
2006-12-05 22:39:58 +00:00
Reid Spencer f37dc65b08 Bail on the getInferredCast idea. Remove the function and convert
remaining uses to more specific casts.

llvm-svn: 32231
2006-12-05 19:14:13 +00:00
Reid Spencer e6328cab48 Fix comment grammaro
llvm-svn: 32198
2006-12-04 21:33:23 +00:00
Reid Spencer 1ba24bb1e4 Fix inferred casts.
llvm-svn: 32180
2006-12-04 17:05:42 +00:00
Jeff Cohen cc08c83186 Unbreak VC++ build.
llvm-svn: 32113
2006-12-02 02:22:01 +00:00
Bill Wendling 597d451fea Removed some of the iostream #includes. Moved towards converting to using
llvm streams

llvm-svn: 31983
2006-11-28 22:46:12 +00:00
Reid Spencer 6c38f0bb07 For PR950:
The long awaited CAST patch. This introduces 12 new instructions into LLVM
to replace the cast instruction. Corresponding changes throughout LLVM are
provided. This passes llvm-test, llvm/test, and SPEC CPUINT2000 with the
exception of 175.vpr which fails only on a slight floating point output
difference.

llvm-svn: 31931
2006-11-27 01:05:10 +00:00
Jim Laskey 61feeb90f9 Remove redundant <cmath>.
llvm-svn: 31561
2006-11-08 19:16:44 +00:00
Reid Spencer 7eb55b395f For PR950:
Replace the REM instruction with UREM, SREM and FREM.

llvm-svn: 31369
2006-11-02 01:53:59 +00:00
Reid Spencer 20ffdbe7c1 Make ScalarEvolution actually use a ZeroExtend expression instead of
having SCZeroExtendExpr be equivalent to SCTruncate

llvm-svn: 31355
2006-11-01 21:53:12 +00:00
Reid Spencer 7e80b0b31e For PR950:
Make necessary changes to support DIV -> [SUF]Div. This changes llvm to
have three division instructions: signed, unsigned, floating point. The
bytecode and assembler are bacwards compatible, however.

llvm-svn: 31195
2006-10-26 06:15:43 +00:00
Reid Spencer e0fc4dfc22 For PR950:
This patch implements the first increment for the Signless Types feature.
All changes pertain to removing the ConstantSInt and ConstantUInt classes
in favor of just using ConstantInt.

llvm-svn: 31063
2006-10-20 07:07:24 +00:00
Chris Lattner 538c6eb05c Fix some more static dtor issues.
llvm-svn: 30724
2006-10-04 21:49:37 +00:00
Chris Lattner a84df0a2f1 Eliminate ConstantBool::True and ConstantBool::False. Instead, provide
ConstantBool::getTrue() and ConstantBool::getFalse().

llvm-svn: 30666
2006-09-28 23:36:21 +00:00
Chris Lattner 3c9b2420df Eliminate RegisterAnalysis. RegisterPass now does all that is necessary.
llvm-svn: 29921
2006-08-27 22:30:17 +00:00
Chris Lattner 3d27be1333 s|llvm/Support/Visibility.h|llvm/Support/Compiler.h|
llvm-svn: 29911
2006-08-27 12:54:02 +00:00
Chris Lattner 996795b0dd Use hidden visibility to make symbols in an anonymous namespace get
dropped.  This shrinks libllvmgcc.dylib another 67K

llvm-svn: 28975
2006-06-28 23:17:24 +00:00
Chris Lattner e8cbdbf314 Implement Transforms/IndVarsSimplify/complex-scev.ll, a case where we didn't
recognize some simple affine IV's.

llvm-svn: 27982
2006-04-26 18:34:07 +00:00
Chris Lattner 6b2c9748c3 Signed shr by a constant is not the same as sdiv by 2^k
llvm-svn: 27395
2006-04-04 06:11:42 +00:00
Chris Lattner 98e9604d5d Fix Transforms/IndVarsSimplify/2006-03-31-NegativeStride.ll and
PR726 by performing consistent signed division, not consistent unsigned
division when evaluating scev's.  Do not touch udivs.

llvm-svn: 27326
2006-04-01 04:48:52 +00:00
Chris Lattner 6806c02380 Add explicit iostream #includes
llvm-svn: 25513
2006-01-22 23:19:18 +00:00
John Criswell fe5f33b120 Move some constant folding code shared by Analysis and Transform passes
into the LLVMAnalysis library.
This allows LLVMTranform and LLVMTransformUtils to be archives and linked
with LLVMAnalysis.a, which provides any missing definitions.

llvm-svn: 24036
2005-10-27 15:54:34 +00:00
Chris Lattner cd002b2461 wrap a long line
llvm-svn: 23507
2005-09-28 22:30:58 +00:00
Chris Lattner e515416396 Fix Transforms/LoopStrengthReduce/2005-08-15-AddRecIV.ll
llvm-svn: 22797
2005-08-16 00:37:01 +00:00
Chris Lattner 587a75b6e0 Teach LLVM to know how many times a loop executes when constructed with
a < expression, e.g.: for (i = m; i < n; ++i)

llvm-svn: 22793
2005-08-15 23:33:51 +00:00
Chris Lattner 35c0e2ee33 Fix an obvious oops
llvm-svn: 22742
2005-08-10 00:59:40 +00:00
Chris Lattner b310ac4a86 implement two helper methods
llvm-svn: 22736
2005-08-09 23:36:33 +00:00
Misha Brukman 01808caded Remove trailing whitespace
llvm-svn: 21416
2005-04-21 21:13:18 +00:00
Chris Lattner 747eee2707 Don't make this require loopsimplify. It works BETTER with loop simplify
but should not require it.

llvm-svn: 21123
2005-04-06 21:45:00 +00:00
Chris Lattner adb043c2d8 Export two methods for getting -X and A-B.
llvm-svn: 20527
2005-03-09 05:34:41 +00:00
Chris Lattner 0b0f3520cb DCE a dead function
llvm-svn: 20339
2005-02-26 23:36:45 +00:00
Chris Lattner f05d2b3178 1 + 100 + 51 == 152, not 52.
If we fold three constants together (c1+c2+c3), make sure to keep
LHSC updated, instead of reusing (in this case), the 1 instead of the
partial sum.

llvm-svn: 20337
2005-02-26 18:50:19 +00:00
Chris Lattner 47555decfb Scary typo that fixes Regression/Transforms/IndVarsSimplify/2005-02-17-TruncateExprCrash.ll
and PR515.

llvm-svn: 20224
2005-02-17 16:54:16 +00:00
Chris Lattner 7b0fbe7ccf Correct the recursive PHI node handling routines in a way that CANNOT induce
infinite loops (using the new replaceSymbolicValuesWithConcrete method).

This patch reverts this patch:
http://mail.cs.uiuc.edu/pipermail/llvm-commits/Week-of-Mon-20050131/023830.html

... which was an attempted fix for this problem.  Unfortunately, that patch
caused test/Regression/Transforms/IndVarsSimplify/exit_value_tests.llx to fail
and slightly castrated the entire analysis.  This patch fixes it right.

This patch is dedicated to jeffc, for making me deal with this.  :)

llvm-svn: 20146
2005-02-13 04:37:18 +00:00
Chris Lattner 1230cf25ba Fix a problem where we could infinitely recurse on phi nodes.
llvm-svn: 19955
2005-02-01 00:18:30 +00:00
Reid Spencer 9083936835 For PR387:\
Make only one print method to avoid overloaded virtual warnings when \
compiled with -Woverloaded-virtual

llvm-svn: 18589
2004-12-07 04:03:45 +00:00
Chris Lattner a27dd47e7a This patch prevents an infinite recursion while compiling 103.su2cor.
All SPEC CFP 95 programs now work, though the JIT isn't loading -lf2c right
so they aren't testing correctly.

llvm-svn: 18499
2004-12-04 20:54:32 +00:00
Chris Lattner 43df507fef Patch to support MSVC, contributed by Morten Ofstad
llvm-svn: 17214
2004-10-25 18:40:08 +00:00
Chris Lattner ec901cc6cd This nutty patch has been in my tree since before 1.3 went out, and it needs
to go in.  This patch allows us to compute the trip count of loops controlled
by values loaded from constant arrays.  The cannonnical example of this is
strlen when passed a constant argument:

for (int i = 0; "constantstring"[i]; ++i) ;
return i;

In this case, it will compute that the loop executes 14 times, which means
that the exit value of i is 14.  Because of this, the loop gets DCE'd and
we are happy.  This also applies to anything that does similar things, e.g.
loops like this:

  const float Array[] = { 0.1, 2.1, 3.2, 23.21 };
  for (int i = 0; Array[i] < 20; ++i)

and is actually fairly general.

The problem with this is that it almost never triggers.  The reason is that
we run indvars and the loop optimizer only at compile time, which is before
things like strlen and strcpy have been inlined into the program from libc.
Because of this, it almost never is used (it triggers twice in specint2k).

I'm committing it because it DOES work, may be useful in the future, and
doesn't slow us down at all.  If/when we start running the loop optimizer
at link-time (-O4?) this will be very nice indeed :)

llvm-svn: 16926
2004-10-12 01:49:27 +00:00
Chris Lattner 6faf3949f6 Fix SingleSource/Benchmarks/McGill/chomp
llvm-svn: 16912
2004-10-11 04:07:27 +00:00
Alkis Evlogimenos a5c04ee50f Fixes to make LLVM compile with vc7.1.
Patch contributed by Paolo Invernizzi!

llvm-svn: 16152
2004-09-03 18:19:51 +00:00
Reid Spencer 7c16caa336 Changes For Bug 352
Move include/Config and include/Support into include/llvm/Config,
include/llvm/ADT and include/llvm/Support. From here on out, all LLVM
public header files must be under include/llvm/.

llvm-svn: 16137
2004-09-01 22:55:40 +00:00
Reid Spencer 30d69a5af9 bug 122:
- Replace ConstantPointerRef usage with GlobalValue usage
- Minimize redundant isa<GlobalValue> usage
- Correct isa<Constant> for GlobalValue subclass

llvm-svn: 14942
2004-07-18 00:18:30 +00:00
Chris Lattner 5e08b93a34 Remove distasteful method which is really part of the indvars pass
llvm-svn: 14359
2004-06-24 06:52:20 +00:00
Chris Lattner baaed7ee90 REALLY fix PR378: crash in scalar evolution analysis
llvm-svn: 14275
2004-06-20 20:32:16 +00:00
Chris Lattner 6bfca8f5f1 Fix a bug in my change last night that caused a few test failures.
llvm-svn: 14270
2004-06-20 17:01:44 +00:00
Chris Lattner eb3e84078d Do not sort SCEV objects by address: instead sort by complexity and group
by address.  This prevents the resultant SCEV objects from depending on
where in memory other scev objects happen to live.

llvm-svn: 14263
2004-06-20 06:23:15 +00:00
Chris Lattner 2d3a7a6ff0 Changes to fix up the inst_iterator to pass to boost iterator checks. This
patch was graciously contributed by Vladimir Prus.

llvm-svn: 13185
2004-04-27 15:13:33 +00:00
Chris Lattner 05ef97f994 Eliminate all of the SCEV Expansion code which is really part of the
IndVars pass, not part of SCEV *analysis*.

llvm-svn: 13134
2004-04-23 21:29:03 +00:00
Chris Lattner 663ebc3ec6 It's not just a printer, it's actually an analysis too
llvm-svn: 13064
2004-04-19 03:42:32 +00:00
Chris Lattner d72c3eb54e Change the ExitBlocks list from being explicitly contained in the Loop
structure to being dynamically computed on demand.  This makes updating
loop information MUCH easier.

llvm-svn: 13045
2004-04-18 22:14:10 +00:00