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0404baca28
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8271 Commits

Author SHA1 Message Date
Anton Korobeynikov
0404baca28 Do not propagate ELF-specific stuff (data.rel) into other targets. This simplifies code and also ensures correctness. 
llvm-svn: 68032
 2009-03-30 15:27:43 +00:00
Anton Korobeynikov
2ea565a37b Add data.rel stuff 
llvm-svn: 68031
 2009-03-30 15:27:03 +00:00
Misha Brukman
78da0fbc46 Updated the comment for isArithmeticShift() to match reality. 
llvm-svn: 68016
 2009-03-29 20:41:38 +00:00
Bill Wendling
668e03b2b8 Constify check. This fixes PR3900. 
llvm-svn: 68013
 2009-03-29 20:08:56 +00:00
Anton Korobeynikov
ec131d94ff Honour relocation behaviour stuff for ro objects 
llvm-svn: 68005
 2009-03-29 17:13:49 +00:00
Anton Korobeynikov
9b5ffaf6ca Extend the relocation tracker handler, so we can filter on different 'kinds' of relocations required. 
llvm-svn: 68004
 2009-03-29 17:13:18 +00:00
Chris Lattner
8e83bd3891 add missing space. 
llvm-svn: 67995
 2009-03-29 13:26:05 +00:00
Chris Lattner
be9cd842ae add some comments, add a dyn_cast method. 
llvm-svn: 67992
 2009-03-29 07:03:30 +00:00
Chris Lattner
f3d562df05 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.

llvm-svn: 67990
 2009-03-29 06:33:22 +00:00
Chris Lattner
696742399a add helper method. 
llvm-svn: 67989
 2009-03-29 06:32:46 +00:00
Chris Lattner
2c6632d760 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.

llvm-svn: 67987
 2009-03-29 06:06:02 +00:00
Chris Lattner
b71e26c380 Allow a specific PointerIntPair instance to use a specific Pointer trait: 
some pointer instances have properties that not all of a type have.

llvm-svn: 67986
 2009-03-29 06:02:20 +00:00
Chris Lattner
afd5e460c3 Add a PointerLikeTypeTraits specialization for uintptr_t 
llvm-svn: 67985
 2009-03-29 06:00:21 +00:00
Chris Lattner
8957cdb71d Value* only has 2 bits free as well. 
llvm-svn: 67984
 2009-03-29 05:45:43 +00:00
Chris Lattner
9dc97aa7bf 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.

llvm-svn: 67979
 2009-03-29 04:32:37 +00:00
Chris Lattner
a78775615b rename PointerLikeTypeInto to PointerLikeTypeTraits, add trait for 
# low bits free, and move to its own header.

llvm-svn: 67973
 2009-03-29 00:39:30 +00:00
Chris Lattner
feee87e253 now that you can put a PointerIntPair in a SmallPtrSet, remove some 
hackish workarounds from memdep

llvm-svn: 67971
 2009-03-29 00:24:04 +00:00
Chris Lattner
c512533ea0 teach SmallPtrSet that PointerIntPair is "basically a pointer". 
llvm-svn: 67970
 2009-03-29 00:18:42 +00:00
Arnold Schwaighofer
636127325b Enable tail call optimization for functions that return a struct (bug 3664) and for functions that return types that need extending (e.g i1). 
llvm-svn: 67934
 2009-03-28 08:33:27 +00:00
Chris Lattner
3fb9928af4 declare everything as class to avoid angering the VC++ gods. 
llvm-svn: 67931
 2009-03-28 07:48:03 +00:00
Chris Lattner
294e633d95 add a traits class for SmallPtrSet that allows us to stick things that are 
"basically pointers" into it.

llvm-svn: 67930
 2009-03-28 07:44:53 +00:00
Evan Cheng
a15fdaa292 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

llvm-svn: 67917
 2009-03-28 05:57:29 +00:00
Chris Lattner
601a4d8c70 move a large method out of line. 
llvm-svn: 67892
 2009-03-28 02:08:47 +00:00
Gabor Greif
b61a9d41b9 "ghostify" the ilist<Function> sentinel 
llvm-svn: 67872
 2009-03-27 22:28:33 +00:00
Mike Stump
f25de0da23 Allow invertable -xno- style optins as well. 
llvm-svn: 67862
 2009-03-27 20:12:55 +00:00
Dan Gohman
88094aaaf9 Revert r67844. This fixes the llvm-gcc-4.2 build on Darwin. 
llvm-svn: 67856
 2009-03-27 18:37:13 +00:00
Duncan Sands
71bb115e1c 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.

llvm-svn: 67844
 2009-03-27 15:29:38 +00:00
Mikhail Glushenkov
b768a08651 -write-graph now can be used with -o. 
Makes it possible to set the output file name.

llvm-svn: 67835
 2009-03-27 12:57:14 +00:00
Evan Cheng
3a7489a4cc CodeGen still defaults to non-verbose asm, but llc now overrides it and default to verbose. 
llvm-svn: 67668
 2009-03-25 01:47:28 +00:00
Dale Johannesen
0f8e2bcd98 Use a SmallPtrSet instead of std::set. 
llvm-svn: 67578
 2009-03-23 23:39:20 +00:00
Evan Cheng
7e4a6972d6 Fix PR3391 and PR3864. Reg allocator infinite looping. 
llvm-svn: 67544
 2009-03-23 18:24:37 +00:00
Dan Gohman
78a1698ac0 Add a new bit to SUnit to record whether a node has implicit physreg 
defs, regardless of whether they are actually used.

llvm-svn: 67528
 2009-03-23 16:10:52 +00:00
Dan Gohman
b3e085e222 Clarify a comment. 
llvm-svn: 67525
 2009-03-23 15:54:02 +00:00
Dan Gohman
5be4b3a1f4 Make getOperandNumForIncomingValue and getOperandNumForIncomingBlock 
static member functions, and add getIncomingValueNumForOperand
and getIncomingBlockNumForOperand, which are the respective
inverses.

llvm-svn: 67522
 2009-03-23 15:48:29 +00:00
Evan Cheng
2ec94dd447 Model inline asm constraint which ties an input to an output register as machine operand TIED_TO constraint. This eliminated the need to pre-allocate registers for these. This also allows register allocator can eliminate the unneeded copies. 
llvm-svn: 67512
 2009-03-23 08:01:15 +00:00
Chris Lattner
9c7b21d369 Fix PR3860 by correcting a predicate. 
llvm-svn: 67473
 2009-03-22 19:22:53 +00:00
Chris Lattner
4fe63a51eb add method to access a template argument. 
llvm-svn: 67458
 2009-03-22 00:18:18 +00:00
Duncan Sands
3c115770e7 Factorize out a concept - no functionality change. 
llvm-svn: 67454
 2009-03-21 21:27:31 +00:00
Chris Lattner
047b30aba8 add some inline methods for infix operators on sparse vectors, 
tidy some df iteration stuff, patch by John Mosby!

llvm-svn: 67428
 2009-03-21 05:40:09 +00:00
Evan Cheng
0c629db2aa For inline asm output operand that matches an input. Encode the input operand index in the high bits. 
llvm-svn: 67387
 2009-03-20 18:03:34 +00:00
Mon P Wang
6ac3a9ac9d Added option to enable generating less precise mad (multiply addition) 
for those architectures that support the instruction.

llvm-svn: 67363
 2009-03-20 05:06:58 +00:00
Sebastian Redl
e4e5b1c2f2 Fix the Win32 VS2008 build: 
- Make type declarations match the struct/class keyword of the definition.
 - Move AddSignalHandler into the namespace where it belongs.
 - Correctly call functions from template base.
 - Some other small changes.
With this patch, LLVM and Clang should build properly and with far less noise under VS2008.

llvm-svn: 67347
 2009-03-19 23:26:52 +00:00
Evan Cheng
f47c144bff Added MachineInstr::isRegTiedToDefOperand to check for two-addressness. 
llvm-svn: 67335
 2009-03-19 20:30:06 +00:00
Dan Gohman
93776d5742 SADDO and UADDO are commutative. 
llvm-svn: 67319
 2009-03-19 18:53:45 +00:00
Dale Johannesen
672ef54d0f Clear the cached cost when removing a function in 
the inliner; prevents nondeterministic behavior
when the same address is reallocated.
Don't build call graph nodes for debug intrinsic calls;
they're useless, and there were typically a lot of them.

llvm-svn: 67311
 2009-03-19 18:03:56 +00:00
Dan Gohman
c6899f6200 Add a liveness analysis pass for LLVM IR values. This computes 
the set of blocks in which values are used, the set in which
values are live-through, and the set in which values are
killed. For the live-through and killed sets, conservative
approximations are used.

llvm-svn: 67309
 2009-03-19 17:29:04 +00:00
Daniel Dunbar
7c9dba0950 Add BUILTIN_EXPECT Support/Compiler macro. 
- Use for exceptional buffer conditions in raw_ostream:write to shave
   off a cycle or two.

 - Please rename if you have a better one.

llvm-svn: 67103
 2009-03-17 21:15:18 +00:00
Daniel Dunbar
e9d33b08eb raw_ostream: Return '*this' explicitly (instead of implicitly via 
write) to expose more alias information.

llvm-svn: 67070
 2009-03-17 01:53:36 +00:00
Daniel Dunbar
b04be1838d raw_ostream: Rework implementation of unbuffered streams so outputting 
a single character requires only one branch to follow slow path.
 - Never use a buffer when writing on an unbuffered stream.

 - Move default buffer size to header.

llvm-svn: 67066
 2009-03-17 01:13:35 +00:00
Daniel Dunbar
2062a58347 raw_ostream: Replace flush_impl with write_impl, which takes data to 
write as arguments.
 - Add raw_ostream::GetNumBytesInBuffer.
 - Privatize buffer pointers.
 - Get rid of slow and unnecessary code for writing out large strings.

llvm-svn: 67060
 2009-03-16 23:29:31 +00:00