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Author SHA1 Message Date
Evan Cheng
4d95232469 X86 address mode isel tweak. If the base of the address is also used by a CopyToReg (i.e. it's likely live-out), do not fold the sub-expressions into the addressing mode to avoid computing the address twice. The CopyToReg use will be isel'ed to a LEA, re-use it for address instead. 
This is not yet enabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68082 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 01:13:53 +00:00
Douglas Gregor
a7425d7fde Really, really fix PointerUnion3::is 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68079 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 00:34:31 +00:00
Dan Gohman
80c93e7442 Except in asm-verbose mode, avoid printing labels for blocks that are 
only reachable via fall-through edges. This dramatically reduces the
number of labels printed, and thus also the number of labels the
assembler must parse and remember.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68073 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 22:55:17 +00:00
Devang Patel
b23c232fc8 Loop Index Split can eliminate a loop if it can determin if loop body is executed only once. There was a bug in determining IV based value of the iteration for which the loop body is executed. Fix it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68071 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 22:24:10 +00:00
Douglas Gregor
2048cdb08e Make PointerUnion3::get work properly 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68067 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 21:44:13 +00:00
Evan Cheng
73f24c9f0d When optimzing a mul by immediate into two, the resulting mul's should get a x86 specific node to avoid dag combiner from hacking on them further. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68066 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 21:36:47 +00:00
Evan Cheng
e6f350d755 Turn a 2-address instruction into a 3-address one when it's profitable even if the two-address operand is killed. 
e.g.
%reg1024<def> = MOV r1
%reg1025<def> = ADD %reg1024, %reg1026
r0            = MOV %reg1025

If it's not possible / profitable to commute ADD, then turning ADD into a LEA saves a copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68065 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 21:34:07 +00:00
Chris Lattner
f54229192c update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68060 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 20:44:04 +00:00
Bill Wendling
fd302b7056 Balance out quote in debug output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68059 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 20:32:22 +00:00
Bill Wendling
430d423e4b Fix grammar-o in comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68057 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 20:30:02 +00:00
Chris Lattner
e8bc475668 add a PointerUnion3 class and generalize PointerUnion to work with 
anything pointer-like, which may or may not actually be a pointer.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 20:29:27 +00:00
Chris Lattner
c6a4b6b78b fix the PointerLikeTypeTraits specialization for PointerIntPair to 
allow the traits to be specified as well.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68055 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 20:28:50 +00:00
Dan Gohman
6d1b89e74f Constify arguments in isSuccessor and isLayoutSuccessor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68054 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 20:06:29 +00:00
Dan Gohman
d480ac6f97 Update the polygen grammer to reflect that zext and sext are no longer 
valid argument attributes (zeroext and signext are).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68053 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 19:59:02 +00:00
John Mosby
3228abe8f9 docs/TestingGuide.html: correction to prev. text (objdir!=srcdir required for running test-suite), removed refs to llvm-test 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68051 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 18:56:53 +00:00
Bob Wilson
d83712ad67 Fix comment to match function name. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68050 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 18:49:37 +00:00
Devang Patel
6d9a2df4ec getEntryFor() may invalidate DenseMap iterator. 
Walking an invalidated iterator is not a good idea.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68047 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 18:34:47 +00:00
Mike Stump
854b9d7623 Add ccc back for now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68038 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 17:43:04 +00:00
Anton Korobeynikov
ca6234944c Clearify local/global relocations wording 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68037 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 17:38:00 +00:00
Anton Korobeynikov
29519b1de0 Fix thinko: put stuff with both global and local relocations into data.rel{.ro}, not .local 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68036 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 17:37:43 +00:00
Anton Korobeynikov
30ffe8150f Tweak test for recent relro stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68035 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 15:28:40 +00:00
Anton Korobeynikov
48738b9244 Fix infinite looping 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68034 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 15:28:21 +00:00
Anton Korobeynikov
fd653071b5 Properly propagate Kind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68033 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 15:28:00 +00:00
Anton Korobeynikov
fca82deecb Do not propagate ELF-specific stuff (data.rel) into other targets. This simplifies code and also ensures correctness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68032 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 15:27:43 +00:00
Anton Korobeynikov
71a7c6cde0 Add data.rel stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68031 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 15:27:03 +00:00
Chris Lattner
217b919cf9 fix some validation problems. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68026 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 06:34:59 +00:00
Evan Cheng
878071e6d0 Forgot this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68025 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 06:17:34 +00:00
John Mosby
24446d671a Clarify section on setting up and running test-suite 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68023 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-30 04:37:51 +00:00
Misha Brukman
031b7481c8 Updated the comment for isArithmeticShift() to match reality. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68016 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 20:41:38 +00:00
Bill Wendling
31fd5a571e Constify check. This fixes PR3900. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68013 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 20:08:56 +00:00
Anton Korobeynikov
807117dc56 Testcase for recent ro/relocs stuff 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68008 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 17:14:57 +00:00
Anton Korobeynikov
721c2c647e IA64 is as weird as Alpha wrt r/o relocs :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68007 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 17:14:35 +00:00
Anton Korobeynikov
01209bc12a Alpha always requires global relocations to be r/w regardless of PIC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68006 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 17:14:14 +00:00
Anton Korobeynikov
db2323148b Honour relocation behaviour stuff for ro objects 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68005 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 17:13:49 +00:00
Anton Korobeynikov
ab267a2823 Extend the relocation tracker handler, so we can filter on different 'kinds' of relocations required. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68004 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 17:13:18 +00:00
Duncan Sands
004e27cc1b Fix PR3899: add support for extracting floats from vectors 
when using -soft-float.
Based on a patch by Jakob Stoklund Olesen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67996 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 13:51:06 +00:00
Chris Lattner
54e01d06db add missing space. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67995 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 13:26:05 +00:00
Chris Lattner
3a9fe06bfe add some comments, add a dyn_cast method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67992 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 07:03:30 +00:00
Chris Lattner
f341a47d10 When forming sentinels for empty/tombstone, make sure to respect the 
pointer's expected number of zero low-bits.

This should fix the breakage I introduced recently.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67990 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 06:33:22 +00:00
Chris Lattner
ba315c1ee7 add helper method. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67989 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 06:32:46 +00:00
Chris Lattner
2491e4657d Add a simple type-safe bit-mangling pointer union class. This allows 
you to do things like:

  ///    PointerUnion<int*, float*> P;
  ///    P = (int*)0;
  ///    printf("%d %d", P.is<int*>(), P.is<float*>()); // prints "1 0"
  ///    X = P.get<int*>();     // ok.
  ///    Y = P.get<float*>();   // runtime assertion failure.
  ///    Z = P.get<double*>();  // does not compile.
  ///    P = (float*)0;
  ///    Y = P.get<float*>();   // ok.
  ///    X = P.get<int*>();     // runtime assertion failure.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67987 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 06:06:02 +00:00
Chris Lattner
540db8bcb8 Allow a specific PointerIntPair instance to use a specific Pointer trait: 
some pointer instances have properties that not all of a type have.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67986 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 06:02:20 +00:00
Chris Lattner
911c8b21da Add a PointerLikeTypeTraits specialization for uintptr_t 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67985 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 06:00:21 +00:00
Chris Lattner
aab3d88bc4 Value* only has 2 bits free as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67984 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 05:45:43 +00:00
Chris Lattner
e30173ac33 Replace the PointerLikeTypeTraits::getNumLowBitsAvailable 
function with a new NumLowBitsAvailable enum, which makes the
value available as an integer constant expression.

Add PointerLikeTypeTraits specializations for Instruction* and
Use** since they are only guaranteed 4-byte aligned.

Enhance PointerIntPair to know about (and enforce) the alignment
specified by PointerLikeTypeTraits.  This should allow things 
like PointerIntPair<PointerIntPair<void*, 1,bool>, 1, bool> 
because the inner one knows that 2 low bits are free.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67979 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 04:32:37 +00:00
Chris Lattner
8ee1b5e916 rename PointerLikeTypeInto to PointerLikeTypeTraits, add trait for 
# low bits free, and move to its own header.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67973 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 00:39:30 +00:00
Chris Lattner
6a0dcc1077 now that you can put a PointerIntPair in a SmallPtrSet, remove some 
hackish workarounds from memdep


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67971 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 00:24:04 +00:00
Chris Lattner
4d4177b9b3 teach SmallPtrSet that PointerIntPair is "basically a pointer". 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67970 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-29 00:18:42 +00:00
Chris Lattner
352f3e5d37 add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67953 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-28 19:26:55 +00:00
Rafael Espindola
a0a4f07fb6 Use array_lengthof 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67950 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-28 19:02:18 +00:00