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Author SHA1 Message Date
Owen Anderson
696a1307ba Remove the "fast" cases for spill and restore point determination, as these were subtlely wrong in obscure cases. Patch the testcase 
to account for this change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68093 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 08:27:09 +00:00
Bill Wendling
8fe00540fc Revert r68073. It's causing a failure in the Apple-style builds. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68092 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 08:26:26 +00:00
Chris Lattner
c4ef551192 shrink subclassid, liberating some bits for future (ab)use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68087 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 07:25:22 +00:00
Dan Gohman
07c26ee87e Fix live-out reg logic to not insert over-aggressive AssertZExt 
instructions. This fixes lua.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68083 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 01:38:29 +00:00
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