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8324 Commits

Author SHA1 Message Date
Chris Lattner
f385167b85 teach PointerLikeTypeTraits that all pointers to pointers may only be 4-byte aligned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68147 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 21:28:39 +00:00
Chris Lattner
bdd376ccb2 add some accessors so I can play games with DenseMaps. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68145 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 20:57:23 +00:00
Dan Gohman
968dc7a207 Reapply 68073, with fixes. EH Landing-pad basic blocks are not 
entered via fall-through. Don't miss fallthroughs from blocks
terminated by conditional branches. Also, move
isOnlyReachableByFallthrough out of line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68129 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 18:39:13 +00:00
Douglas Gregor
da84b25b13 Stop guessing, start thinking, and make PointerUnion3::is actually be correct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68126 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 18:31:03 +00:00
Daniel Dunbar
be46c79501 Add llvm::sys::getHostTriple and remove 
llvm::sys::getOS{Name,Version}.

Right now the implementation just derives from LLVM_HOSTTRIPLE (which
is wrong, but it doesn't look like we have a define for the target
triple). Ideally this routine would actually be able to compute the
triple for targets we care about.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68118 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 17:30:15 +00:00
Bill Wendling
df4881c68a Really temporarily revert r68073. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68100 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 08:42:40 +00:00
Bill Wendling
e67f5e4273 Oy! When reverting r68073, I added in experimental code. Sorry... 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68099 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-31 08:41:31 +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
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
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
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
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
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
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
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
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
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
Arnold Schwaighofer
e75fd69f15 Enable tail call optimization for functions that return a struct (bug 3664) and for functions that return types that need extending (e.g i1). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67934 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-28 08:33:27 +00:00
Chris Lattner
1717f3af08 declare everything as class to avoid angering the VC++ gods. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67931 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-28 07:48:03 +00:00
Chris Lattner
6de6030718 add a traits class for SmallPtrSet that allows us to stick things that are 
"basically pointers" into it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67930 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-28 07:44:53 +00:00
Evan Cheng
0b0cd9113a Optimize some 64-bit multiplication by constants into two lea's or one lea + shl since imulq is slow (latency 5). e.g. 
x * 40
=>
shlq    $3, %rdi
leaq    (%rdi,%rdi,4), %rax

This has the added benefit of allowing more multiply to be folded into addressing mode. e.g.
a * 24 + b
=>
leaq    (%rdi,%rdi,2), %rax
leaq    (%rsi,%rax,8), %rax


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67917 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-28 05:57:29 +00:00
Chris Lattner
e8b64106ec move a large method out of line. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67892 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-28 02:08:47 +00:00
Gabor Greif
d257f7d96b "ghostify" the ilist<Function> sentinel 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67872 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-27 22:28:33 +00:00
Mike Stump
5c1f715d4b Allow invertable -xno- style optins as well. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67862 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-27 20:12:55 +00:00
Dan Gohman
9c01f2dd0b Revert r67844. This fixes the llvm-gcc-4.2 build on Darwin. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67856 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-27 18:37:13 +00:00
Duncan Sands
76d3838454 Reapply r66415, which was reverted in r66426 for 
causing a bootstrap failure.  Bootstraps here on
x86-32-linux and x86-64-linux.  Requested by the
author Gabor Greif who says that a bug that might
have been causing the failure has since been fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67844 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-27 15:29:38 +00:00
Mikhail Glushenkov
d50d32b940 -write-graph now can be used with -o. 
Makes it possible to set the output file name.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67835 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-27 12:57:14 +00:00
Evan Cheng
42bf74be14 CodeGen still defaults to non-verbose asm, but llc now overrides it and default to verbose. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67668 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-25 01:47:28 +00:00
Dale Johannesen
16581bf931 Use a SmallPtrSet instead of std::set. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67578 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 23:39:20 +00:00
Evan Cheng
2824a65550 Fix PR3391 and PR3864. Reg allocator infinite looping. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67544 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 18:24:37 +00:00
Dan Gohman
3974667c1a Add a new bit to SUnit to record whether a node has implicit physreg 
defs, regardless of whether they are actually used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67528 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 16:10:52 +00:00
Dan Gohman
f49f0cdb48 Clarify a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67525 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-03-23 15:54:02 +00:00