Commit Graph

13962 Commits

Author SHA1 Message Date
Rafael Espindola
066c2f495a Be consistent about being virtual and returning void in the cfi methods.
Implement the ones that were missing in the asm streamer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 23:59:07 +00:00
Bill Wendling
f9b2dc66c8 Revert r129401 for now. Clang is using the old way of doing things.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129403 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 22:59:27 +00:00
Bill Wendling
d5f323d70b Remove the unaligned load intrinsics in favor of using native unaligned loads.
Now that we have a first-class way to represent unaligned loads, the unaligned
load intrinsics are superfluous.

First part of <rdar://problem/8460511>.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129401 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 22:46:31 +00:00
Jim Grosbach
f8c1c8465f MCJIT lazy relocation resolution and symbol address re-assignment.
Add handling for tracking the relocations on symbols and resolving them.
Keep track of the relocations even after they are resolved so that if
the RuntimeDyld client moves the object, it can update the address and any
relocations to that object will be updated.

For our trival object file load/run test harness (llvm-rtdyld), this enables
relocations between functions located in the same object module. It should
be trivially extendable to load multiple objects with mutual references.

As a simple example, the following now works (running on x86_64 Darwin 10.6):


$ cat t.c
int bar() {
  return 65;
}

int main() {
  return bar();
}
$ clang t.c -fno-asynchronous-unwind-tables -o t.o -c
$ otool -vt t.o
t.o:
(__TEXT,__text) section
_bar:
0000000000000000  pushq %rbp
0000000000000001  movq  %rsp,%rbp
0000000000000004  movl  $0x00000041,%eax
0000000000000009  popq  %rbp
000000000000000a  ret
000000000000000b  nopl  0x00(%rax,%rax)
_main:
0000000000000010  pushq %rbp
0000000000000011  movq  %rsp,%rbp
0000000000000014  subq  $0x10,%rsp
0000000000000018  movl  $0x00000000,0xfc(%rbp)
000000000000001f  callq 0x00000024
0000000000000024  addq  $0x10,%rsp
0000000000000028  popq  %rbp
0000000000000029  ret
$ llvm-rtdyld t.o -debug-only=dyld ; echo $?
Function sym: '_bar' @ 0
Function sym: '_main' @ 16
Extracting function: _bar from [0, 15]
    allocated to 0x100153000
Extracting function: _main from [16, 41]
    allocated to 0x100154000
Relocation at '_main' + 16 from '_bar(Word1: 0x2d000000)
Resolving relocation at '_main' + 16 (0x100154010) from '_bar (0x100153000)(pcrel, type: 2, Size: 4).
loaded '_main' at: 0x100154000
65
$




git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129388 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 21:20:41 +00:00
Rafael Espindola
5d7dcd3335 Remove LastOffset from the asm parser.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129378 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 18:53:30 +00:00
Rafael Espindola
25f492e778 Fix the case of a .cfi_rel_offset before any .cfi_def_cfa_offset.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129362 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 16:12:03 +00:00
Rafael Espindola
c57543964d Implement .cfi_same_value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129361 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 15:31:05 +00:00
Nick Lewycky
93b68b20d4 Add support for line profiling. Very work-in-progress.
Use debug info in the IR to find the directory/file:line:col. Each time that location changes, bump a counter.

Unlike the existing profiling system, we don't try to look at argv[], and thusly don't require main() to be present in the IR. This matches GCC's technique where you specify the profiling flag when producing each .o file.

The runtime library is minimal, currently just calling printf at program shutdown time. The API is designed to make it possible to emit GCOV data later on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129340 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 01:06:09 +00:00
Nick Lewycky
cb4e4eae1a Make IRBuilder support StringRef for building strings.
Also document that the global variables produced are mergable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129330 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 00:29:07 +00:00
Jim Grosbach
7cbf92d1d9 Tidy up a bit now that we're using the MemoryManager interface.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129328 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-12 00:23:32 +00:00
Chris Lattner
b5f18f5df0 remove the StructRetPromotion pass. It is unused, not maintained and
has some bugs.  If this is interesting functionality, it should be 
reimplemented in the argpromotion pass.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129314 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11 23:09:44 +00:00
Jakob Stoklund Olesen
3d32202748 Skip a binary search when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129293 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11 20:01:44 +00:00
Kevin Enderby
bd3327654b Adding support for printing operands symbolically to llvm's public 'C'
disassembler API.  Hooked this up to the ARM target so such tools as Darwin's
otool(1) can now print things like branch targets for example this:
  blx _puts
instead of this:
  blx #-36
And even print the expression encoded in the Mach-O relocation entried for
things like this:
  movt r0, :upper16:((_foo-_bar)+1234)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129284 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11 18:08:50 +00:00
Jay Foad
8340d0b659 Fix or remove code which seemed to think that the operand of a Constant
was always a User.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129272 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11 09:48:55 +00:00
Jay Foad
562b84b3ae Don't include Operator.h from InstrTypes.h.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129271 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-11 09:35:34 +00:00
Bill Wendling
5d7a5a4f53 Revert r129235 pending a vetting of the EH rewrite.
--- Reverse-merging r129235 into '.':
D    test/Feature/bb_attrs.ll
U    include/llvm/BasicBlock.h
U    include/llvm/Bitcode/LLVMBitCodes.h
U    lib/VMCore/AsmWriter.cpp
U    lib/VMCore/BasicBlock.cpp
U    lib/AsmParser/LLParser.cpp
U    lib/AsmParser/LLLexer.cpp
U    lib/AsmParser/LLToken.h
U    lib/Bitcode/Reader/BitcodeReader.cpp
U    lib/Bitcode/Writer/BitcodeWriter.cpp



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129259 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-10 23:18:04 +00:00
Bill Wendling
d7bb295d22 Beginning of the Great Exception Handling Rewrite.
* Add a "landing pad" attribute to the BasicBlock.
* Modify the bitcode reader and writer to handle said attribute.

Later: The verifier will ensure that the landing pad attribute is used in the
appropriate manner. I.e., not applied to the entry block, and applied only to
basic blocks that are branched to via a `dispatch' instruction.

(This is a work-in-progress.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129235 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-10 00:04:27 +00:00
Chris Lattner
b1145c8cee drive by bug fix: DenseMapInfo::isEqual should be determined according to
isEqual of its members, not operator==.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129233 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-09 21:20:23 +00:00
Eli Friedman
9055ccdb6b PR9604; try to deal with RAUW updates correctly in the AST. I'm not convinced
it's completely safe to cache the AST across LICM runs even with this fix,
but this fix can't hurt.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129198 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-09 06:55:46 +00:00
Chris Lattner
c9049a9ea8 fix a potentially serious bug in AliasSet::removeCallSite
where we shrunk the list without updating the end iterator.
By inspection, from PR9639.  


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129190 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-09 05:51:34 +00:00
Jakob Stoklund Olesen
f4afdfc501 Build the Hopfield network incrementally when splitting global live ranges.
It is common for large live ranges to have few basic blocks with register uses
and many live-through blocks without any uses. This approach grows the Hopfield
network incrementally around the use blocks, completely avoiding checking
interference for some through blocks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129188 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-09 02:59:09 +00:00
Chris Lattner
5fc25cccff fix doc comment bug, noticed by Jochen
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129186 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-09 02:33:29 +00:00
Evan Cheng
4da0c7c0c9 Change -arm-trap-func= into a non-arm specific option. Now Intrinsic::trap is lowered into a call to the specified trap function at sdisel time.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129152 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-08 21:37:21 +00:00
Jim Grosbach
b027105fa5 Refactor MCJIT 32-bit section loading.
Teach 32-bit section loading to use the Memory Manager interface, just like
the 64-bit loading does. Tidy up a few other things here and there.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129138 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-08 17:31:24 +00:00
Bill Wendling
44dcfd3625 Replace the old algorithm that emitted the "print the alias for an instruction"
with the newer, cleaner model. It uses the IAPrinter class to hold the
information that is needed to match an instruction with its alias. This also
takes into account the available features of the platform.

There is one bit of ugliness. The way the logic determines if a pattern is
unique is O(N**2), which is gross. But in reality, the number of items it's
checking against isn't large. So while it's N**2, it shouldn't be a massive time
sink.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129110 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-07 21:20:06 +00:00
Andrew Trick
5469976506 Added a check in the preRA scheduler for potential interference on a
induction variable. The preRA scheduler is unaware of induction vars,
so we look for potential "virtual register cycles" instead.

Fixes <rdar://problem/8946719> Bad scheduling prevents coalescing


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129100 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-07 19:54:57 +00:00
Evan Cheng
2c69f8eec6 Change -arm-divmod-libcall to a target neutral option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129045 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-07 00:58:44 +00:00
Nick Lewycky
c60a475091 Add support for ArrayRef in IRBuilder's CreateCall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129039 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-07 00:03:25 +00:00
Nick Lewycky
b0923771c9 Fix typo in doxy-comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129028 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-06 20:54:07 +00:00
Nick Lewycky
ec5d1800f9 Replace const std::vector& with ArrayRef in the type creation APIs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129024 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-06 20:28:34 +00:00
Jim Grosbach
714b34fc24 EngineBuilder setter method for UseMCJIT was missing return value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@129008 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-06 16:35:19 +00:00
Nick Lewycky
4841121580 Add an empty key for DebugLoc so that you can store an empty DebugLoc in a
DenseMap.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128994 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-06 06:49:59 +00:00
Nick Lewycky
af4db5fc95 Support using DebugLoc's in a DenseMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128988 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-06 05:36:52 +00:00
Jim Grosbach
c41ab789a0 RuntimeDyld should use the memory manager API.
Start teaching the runtime Dyld interface to use the memory manager API
for allocating space. Rather than mapping directly into the MachO object,
we extract the payload for each object and copy it into a dedicated buffer
allocated via the memory manager. For now, just do Segment64, so this works
on x86_64, but not yet on ARM.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128973 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-06 01:11:05 +00:00
Chandler Carruth
53c5e7b2e7 Make the virtual destructor out-of-line so we have a key function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128964 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 23:54:31 +00:00
Chandler Carruth
d36d42d4ac Provide an empty virtual destructor to go with the virtual methods in
this class. Clang was warning on this with -Wnon-virtual-dtor.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128952 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 23:03:24 +00:00
Devang Patel
da19475328 Add support to encode function's template parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128947 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 22:52:06 +00:00
Chris Lattner
1a8b9dd7fb remove postdom frontiers, because it is dead. Forward dom frontiers are
still used by RegionInfo :(


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 21:57:17 +00:00
Andrew Trick
40f16cf91d Fix a typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128912 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 19:13:11 +00:00
Andrew Trick
ce96902d88 Added *hidden* flags -print-options and -print-all-options so
developers can see if their driver changed any cl::Option's. The
current implementation isn't perfect but handles most kinds of
options. This is nice to have when decomposing the stages of
compilation and moving between different drivers. It's also a good
sanity check when comparing results produced by different command line
invocations that are expected to produce the comparable results.

Note: This is not an attempt to prolong the life of cl::Option. On the
contrary, it's a placeholder for a feature that must exist when
cl::Option is replaced by a more appropriate framework. A new
framework needs: a central option registry, dynamic name lookup,
non-global containers of option values (e.g. per-module,
per-function), *and* the ability to print options values and their defaults at
any point during compilation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128910 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 18:54:36 +00:00
Jakob Stoklund Olesen
a2948ef5ac Use std::unique instead of a SmallPtrSet to ensure unique instructions in UseSlots.
This allows us to always keep the smaller slot for an instruction which is what
we want when a register has early clobber defines.

Drop the UsingInstrs set and the UsingBlocks map. They are no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128886 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 15:18:18 +00:00
Jakob Stoklund Olesen
1a7744501a Cache the fairly expensive last split point computation and provide a fast
inlined path for the common case.

Most basic blocks don't contain a call that may throw, so the last split point
os simply the first terminator.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128874 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 04:20:27 +00:00
Bill Wendling
f05b1dcf87 Revamp the SjLj "dispatch setup" intrinsic.
It needed to be moved closer to the setjmp statement, because the code directly
after the setjmp needs to know about values that are on the stack. Also, the
'bitcast' of the function context was causing a dead load. This wouldn't be too
horrible, except that at -O0 it wasn't optimized out, and because it wasn't
using the correct base pointer (if there is a VLA), it would try to access a
value from a garbage address.
<rdar://problem/9130540>


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128873 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-05 01:37:43 +00:00
Jim Grosbach
fcbe5b7193 Layer the memory manager between the JIT and the runtime Dyld.
The JITMemory manager references LLVM IR constructs directly, while the
runtime Dyld works at a lower level and can handle objects which may not
originate from LLVM IR. Introduce a new layer for the memory manager to
handle the interface between them. For the MCJIT, this layer will be almost
entirely simply a call-through w/ translation between the IR objects and
symbol names.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128851 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-04 23:04:39 +00:00
Jakob Stoklund Olesen
6c8afd728e Stop caching basic block index ranges now that SlotIndexes can keep up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-04 15:32:15 +00:00
Tobias Grosser
cc5d992bc1 Region: Allow user control the printing style of the print function.
Contributed by: etherzhhb@gmail.com

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128808 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-04 07:19:18 +00:00
Peter Collingbourne
10fdd5a0f6 IntrusiveRefCntPtr: in RefCountedBase and RefCountedBaseVPTR, make
ref_cnt mutable and Retain/Release const to enable reference counted
pointers to const objects

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128804 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-04 00:57:03 +00:00
Eric Christopher
592cf78f84 Start migrating mach-o dumping facilities to the object file out of a
separate executable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128801 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-03 23:51:47 +00:00
Frits van Bommel
c12d4c93f9 Remove the LLVMContext& arguments from *Folder constructors, as they don't seem to be used anywhere.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128793 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-03 19:46:28 +00:00
Eli Friedman
71ad2c9eda PR9446: RecursivelyDeleteTriviallyDeadInstructions can delete the instruction
after the given instruction; make sure to handle that case correctly.
(It's difficult to trigger; the included testcase involves a dead 
block, but I don't think that's a requirement.) 

While I'm here, get rid of the unnecessary warning about
SimplifyInstructionsInBlock, since it should work correctly as far as I know.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128782 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-02 22:45:17 +00:00
Jakob Stoklund Olesen
5907d86365 Add an InterferenceCache class for caching per-block interference ranges.
When the greedy register allocator is splitting multiple global live ranges, it
tends to look at the same interference data many times. The InterferenceCache
class caches queries for unaltered LiveIntervalUnions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128764 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-02 06:03:35 +00:00
Jakob Stoklund Olesen
a122eaaee2 Use basic block numbers as indexes when mapping slot index ranges.
This is more compact and faster than using DenseMap.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128763 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-02 06:03:31 +00:00
Cameron Zwarich
ed3caf9086 Add a RemoveFromWorklist method to DCI. This is needed to do some complicated
transformations in target-specific DAG combines without causing DAGCombiner to
delete the same node twice. If you know of a better way to avoid this (see my
next patch for an example), please let me know.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128758 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-02 02:40:26 +00:00
Jay Foad
8891ed7ac9 Various Instructions' resizeOperands() methods are only used to grow the
list of operands. Simplify and rename them accordingly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128708 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-01 08:00:58 +00:00
Evan Cheng
8e23e815ad Issue libcalls __udivmod*i4 / __divmod*i4 for div / rem pairs.
rdar://8911343


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128696 91177308-0d34-0410-b5e6-96231b3b80d8
2011-04-01 00:42:02 +00:00
Richard Osborne
e8f3533323 Add XCore intrinsics for initializing / starting / synchronizing threads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128633 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-31 15:13:13 +00:00
Michael J. Spencer
56584fcbfd Fix whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128631 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-31 13:06:39 +00:00
Michael J. Spencer
c9c08fb3a7 Switch FileRemover from PathV1 to V2.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128630 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-31 13:04:19 +00:00
Jim Grosbach
f5b23368d2 Tidy up. Whitespace and 80-columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128583 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 22:38:13 +00:00
Jakob Stoklund Olesen
b516e00b43 Don't add the same analysis implementation pair twice.
Prevent infinite growth of the list.

Patch by José Fonseca!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128568 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 18:32:53 +00:00
Jakob Stoklund Olesen
03ef449917 Reset StringMap's NumTombstones on clears and rehashes.
StringMap was not properly updating NumTombstones after a clear or rehash.

This was not fatal until now because the table was growing faster than
NumTombstones could, but with the previous change of preventing infinite
growth of the table the invariant (NumItems + NumTombstones <= NumBuckets)
stopped being observed, causing infinite loops in certain situations.

Patch by José Fonseca!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128567 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 18:32:51 +00:00
Jakob Stoklund Olesen
e10fff6f88 Prevent infinite growth of SmallPtrSet instances.
Rehash but don't grow when full of tombstones.

Patch by José Fonseca!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128566 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 18:32:48 +00:00
Jakob Stoklund Olesen
aea4fe2862 Prevent infinite growth of SmallMap instances.
Rehash but don't grow when full of tombstones.

Patch by José Fonseca!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128565 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 18:32:44 +00:00
Jakob Stoklund Olesen
414fdbdb01 Prevent infinite growth of the DenseMap.
When the hash function uses object pointers all free entries eventually
become tombstones as they are used at least once, regardless of the size.

DenseMap cannot function with zero empty keys, so it double size to get
get ridof the tombstones.

However DenseMap never shrinks automatically unless it is cleared, so
the net result is that certain tables grow infinitely.

The solution is to make a fresh copy of the table without tombstones
instead of doubling size, by simply calling grow with the current size.

Patch by José Fonseca!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128564 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 18:32:41 +00:00
Benjamin Kramer
2746000f4f Add APFloat::getExactInverse.
The idea is, that if an ieee 754 float is divided by a power of two, we can
turn the division into a cheaper multiplication. This function sees if we can
get an exact multiplicative inverse for a divisor and returns it if possible.

This is the hard part of PR9587.

I tested many inputs against llvm-gcc's frotend implementation of this
optimization and didn't find any difference. However, floating point is the
land of weird edge cases, so any review would be appreciated.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128545 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 15:42:27 +00:00
Jay Foad
d01f2633b9 Fix more zero length memset warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128543 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 15:31:02 +00:00
Jay Foad
4499176789 Add a comment on PHINode::Create().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128540 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 13:29:06 +00:00
Jay Foad
3ecfc861b4 Remove PHINode::reserveOperandSpace(). Instead, add a parameter to
PHINode::Create() giving the (known or expected) number of operands.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128537 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 11:28:46 +00:00
Bob Wilson
8be7d8b43c Revert a minor comment change inadvertently included with r128502.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128526 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-30 05:26:51 +00:00
Evan Cheng
92e3916c3b Add intrinsics @llvm.arm.neon.vmulls and @llvm.arm.neon.vmullu.* back. Frontends
was lowering them to sext / uxt + mul instructions. Unfortunately the
optimization passes may hoist the extensions out of the loop and separate them.
When that happens, the long multiplication instructions can be broken into
several scalar instructions, causing significant performance issue.

Note the vmla and vmls intrinsics are not added back. Frontend will codegen them
as intrinsics vmull* + add / sub. Also note the isel optimizations for catching
mul + sext / zext are not changed either.

First part of rdar://8832507, rdar://9203134


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128502 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-29 23:06:19 +00:00
Jim Grosbach
5acfa9f0fd Instantiate a JITMemoryManager for MCJIT Dyld
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128485 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-29 21:03:05 +00:00
Daniel Dunbar
a7b8c2b6a4 Integrated-As: Add support for setting the AllowTemporaryLabels flag via
integrated-as.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128431 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-28 22:49:19 +00:00
Daniel Dunbar
c6cf43d258 MC: Add support for disabling "temporary label" behavior. Useful for debugging
on Darwin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128430 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-28 22:49:15 +00:00
Frits van Bommel
6208610fd6 Constant folding support for calls to umul.with.overflow(), basically identical to the smul.with.overflow() code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128379 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-27 14:26:13 +00:00
Jakob Stoklund Olesen
adb877d62e Collect and coalesce DBG_VALUE instructions before emitting the function.
Correctly terminate the range of register DBG_VALUEs when the register is
clobbered or when the basic block ends.

The code is now ready to deal with variables that are sometimes in a register
and sometimes on the stack. We just need to teach emitDebugLoc to say 'stack
slot'.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128327 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-26 02:19:36 +00:00
Jim Grosbach
d31d304f83 Clean up assembly statement separator support.
The MC asm lexer wasn't honoring a non-default (anything but ';') statement
separator. Fix that, and generalize a bit to support multi-character
statement separators.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128227 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24 18:46:34 +00:00
Jay Foad
0d4b81519d Fix typo in comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128216 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24 16:18:19 +00:00
Evan Cheng
acdddfedd1 Add comment to clarify what MachineConstantPoolEntry::isMachineConstantPoolEntry() means.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128204 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-24 06:28:45 +00:00
Jim Grosbach
b9b1e307f2 Fix comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128182 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-23 23:32:48 +00:00
Rafael Espindola
11d1803770 We don't need a null terminator for the output file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128098 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 19:20:47 +00:00
Jim Grosbach
b3eecaf19e Propogate the error message, not just the error state.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128094 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 18:19:42 +00:00
Ted Kremenek
3311d951e2 Properly initialize all fields in CrashReporterCleanupContext. This caused the buildbot failure earlier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128071 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 04:33:13 +00:00
Ted Kremenek
afc9e06021 Rework CrashRecoveryContextCleanup to provide a simpler way to create cleanup objects, and provide a new cleanup for
decrementing reference counts of objects with intrusive reference counts.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128055 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 01:15:10 +00:00
Ted Kremenek
116e2348ed Relax access control on 'Release' method of RefCountedBase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128054 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-22 01:15:07 +00:00
Jim Grosbach
6e56331ed9 Library-ize the dyld components of llvm-rtdyld.
Move the dynamic linking functionality of the llvm-rtdyld program into an
ExecutionEngine support library. Update llvm-rtdyld to just load an object
file into memory, use the library to process it, then run the _main()
function, if one is found.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128031 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21 22:15:52 +00:00
Ted Kremenek
b52fde4185 Provide a means for CrashRecovery clients to determine if code is currently running while crash recovery cleanups are being processed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128008 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21 18:38:03 +00:00
Ted Kremenek
47f0f1856f Allow a client to clear an IntrustiveRefCntPtr (deliberately leaking the referenced object).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128007 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21 18:37:59 +00:00
Eric Christopher
0891d99b87 Fix unused param warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128005 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21 18:06:32 +00:00
Jay Foad
b963e2320f Fix typos in assert messages.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@128002 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21 16:38:22 +00:00
Bill Wendling
a5c177e70a We need to pass the TargetMachine object to the InstPrinter if we are printing
the alias of an InstAlias instead of the thing being aliased. Because we need to
know the features that are valid for an InstAlias.

This is part of a work-in-progress.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127986 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21 04:13:46 +00:00
Evan Cheng
485fafc840 Re-apply r127953 with fixes: eliminate empty return block if it has no predecessors; update dominator tree if cfg is modified.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127981 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-21 01:19:09 +00:00
Argyrios Kyrtzidis
b518c25b3e If a class inherits from RefCountedBaseVPTR allow all its subclasses to be used with IntrusiveRefCntPtr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127966 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-20 06:14:56 +00:00
Daniel Dunbar
7a90e04fc7 Revert r127953, "SimplifyCFG has stopped duplicating returns into predecessors
to canonicalize IR", it broke a lot of things.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127954 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 21:47:14 +00:00
Evan Cheng
ae16d6b972 SimplifyCFG has stopped duplicating returns into predecessors to canonicalize IR
to have single return block (at least getting there) for optimizations. This
is general goodness but it would prevent some tailcall optimizations.
One specific case is code like this:
int f1(void);
int f2(void);
int f3(void);
int f4(void);
int f5(void);
int f6(void);
int foo(int x) {
  switch(x) {
  case 1: return f1();
  case 2: return f2();
  case 3: return f3();
  case 4: return f4();
  case 5: return f5();
  case 6: return f6();
  }
}

=>
LBB0_2:                                 ## %sw.bb
  callq   _f1
  popq    %rbp
  ret
LBB0_3:                                 ## %sw.bb1
  callq   _f2
  popq    %rbp
  ret
LBB0_4:                                 ## %sw.bb3
  callq   _f3
  popq    %rbp
  ret

This patch teaches codegenprep to duplicate returns when the return value
is a phi and where the phi operands are produced by tail calls followed by
an unconditional branch:

sw.bb7:                                           ; preds = %entry
  %call8 = tail call i32 @f5() nounwind
  br label %return
sw.bb9:                                           ; preds = %entry
  %call10 = tail call i32 @f6() nounwind
  br label %return
return:
  %retval.0 = phi i32 [ %call10, %sw.bb9 ], [ %call8, %sw.bb7 ], ... [ 0, %entry ]
  ret i32 %retval.0

This allows codegen to generate better code like this:

LBB0_2:                                 ## %sw.bb
        jmp     _f1                     ## TAILCALL
LBB0_3:                                 ## %sw.bb1
        jmp     _f2                     ## TAILCALL
LBB0_4:                                 ## %sw.bb3
        jmp     _f3                     ## TAILCALL

rdar://9147433


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127953 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 17:17:39 +00:00
Stuart Hastings
65c8bca788 Reapply 127939 since Daniel fixed the breakage. <rdar://problem/9012638>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127944 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 02:42:31 +00:00
Stuart Hastings
825dd96918 Revert 127939. <rdar://problem/9012638>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127943 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 02:33:56 +00:00
Stuart Hastings
7257897402 Revise r126127 to address Daniel's comments. <rdar://problem/9012638>
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127939 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 01:32:01 +00:00
Ted Kremenek
1a06d5721a Tweak CrashRecoveryContextCleanup to provide an easy method for clients to select between 'delete' and 'destructor' cleanups, and allow the destructor of CrashRecoveryContextCleanupRegister to be pseudo re-entrant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127929 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-19 00:59:37 +00:00
Devang Patel
36fae67831 If an AllocaInst referred by DbgDeclareInst is used by a LoadInst then the LoadInst should also get a corresponding llvm.dbg.value intrinsic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127924 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18 23:45:43 +00:00
Jim Grosbach
31649e61bc Beginnings of MC-JIT code generation.
Proof-of-concept code that code-gens a module to an in-memory MachO object.
This will be hooked up to a run-time dynamic linker library (see: llvm-rtdyld
for similarly conceptual work for that part) which will take the compiled
object and link it together with the rest of the system, providing back to the
JIT a table of available symbols which will be used to respond to the
getPointerTo*() queries.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127916 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18 22:48:41 +00:00
Andrew Trick
5fd5b125ff Avoid creating canonical induction variables for non-native types.
For example, on 32-bit architecture, don't promote all uses of the IV
to 64-bits just because one use is a 64-bit cast.
Alternate implementation of the patch by Arnaud de Grandmaison.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127884 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18 16:50:32 +00:00
Jim Grosbach
84161c2f68 Tidy up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127883 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18 16:39:36 +00:00
Ted Kremenek
289bdccddf Tweak CrashRecoveryContextCleanup::createCleanup() to use the 'delete' cleanup as opposed to the 'destructor' cleanup (reclaims more memory).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127865 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18 03:46:21 +00:00
Ted Kremenek
0597234028 Add new CrashRecoveryContextCleanup subclass: CrashRecoveryContextDeleteCleanup. This deletes the object, not just calls its destructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127855 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18 03:04:18 +00:00
Ted Kremenek
a4f9839701 Augment CrashRecoveryContext to have registered "cleanup" objects that can be used to release resources during a crash.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127849 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-18 02:05:11 +00:00
Andrew Trick
b12a754cce Added isValidRewrite() to check the result of ScalarEvolutionExpander.
SCEV may generate expressions composed of multiple pointers, which can
lead to invalid GEP expansion. Until we can teach SCEV to follow strict
pointer rules, make sure no bad GEPs creep into IR.
Fixes rdar://problem/9038671.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127839 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 23:51:11 +00:00
Rafael Espindola
9916d2ac39 Use RequiresNullTerminator to create buffers without a null terminator
instead of copying.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127835 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 22:18:42 +00:00
Devang Patel
813c9a0f19 Try to not lose variable's debug info during instcombine.
This is done by lowering dbg.declare intrinsic into dbg.value intrinsic.
Radar 9143931.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127834 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 22:18:16 +00:00
Devang Patel
5ee20680c7 Refactor into a separate utility function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127832 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 21:58:19 +00:00
Benjamin Kramer
d9103df51b Add an argument to APInt's magic udiv calculation to specify the number of bits that are known zero in the divided number.
This will come in handy soon.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127828 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 20:39:06 +00:00
Jakob Stoklund Olesen
6a3dbd3b25 Dead code elimination may separate the live interval into multiple connected components.
I have convinced myself that it can only happen when a phi value dies. When it
happens, allocate new virtual registers for the components.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127827 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 20:37:07 +00:00
Richard Osborne
11bd0784d9 Add XCore intrinsic for setpsc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127821 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 18:42:05 +00:00
Cameron Zwarich
7bbf0ee97c Move more logic into getTypeForExtArgOrReturn.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127809 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 14:53:37 +00:00
Cameron Zwarich
4457968011 Rename getTypeForExtendedInteger() to getTypeForExtArgOrReturn().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127807 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 14:21:56 +00:00
Jakob Stoklund Olesen
2254227791 Rewrite instructions as part of ConnectedVNInfoEqClasses::Distribute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127779 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-17 00:23:45 +00:00
Cameron Zwarich
ebe8173941 The x86-64 ABI says that a bool is only guaranteed to be sign-extended to a byte
rather than an int. Thankfully, this only causes LLVM to miss optimizations, not
generate incorrect code.

This just fixes the zext at the return. We still insert an i32 ZextAssert when
reading a function's arguments, but it is followed by a truncate and another i8
ZextAssert so it is not optimized.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127766 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 22:20:18 +00:00
Richard Osborne
e17139b3e9 Add XCore intrinsics for setclk, setrdy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127761 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 21:56:00 +00:00
Richard Osborne
bb057453db Add checkevent intrinsic to check if any resources owned by the current thread
can event.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127741 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 18:34:00 +00:00
Cameron Zwarich
82bae7dafc Add TargetData::fitsInLegalInteger().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127714 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-16 00:13:28 +00:00
John Thompson
6046cffbaf Add scei vendor
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127705 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15 21:51:56 +00:00
Richard Osborne
5aad8b3e78 Add XCore intrinsics for getps, setps, setsr and clrsr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127678 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15 13:45:47 +00:00
Justin Holewinski
625eec10fe PTX: Set PTX 2.0 as the minimum supported version
- Remove PTX 1.4 code generation
- Change type of intrinsics to .v4.i32 instead of .v4.i16
- Add and/or/xor integer instructions

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127677 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15 13:24:15 +00:00
Evan Cheng
0f040a258f - Add "Bitcast" target instruction property for instructions which perform
nothing more than a bitcast.
- Teach tablegen to automatically infer "Bitcast" property.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127667 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-15 05:09:26 +00:00
John McCall
b121bfcc22 Version N of the llvm_unreachable patch: VC++ doesn't recognize that abort()
doesn't return, so just go back to using the old runtime function instead
of trying to use abort() when __builtin_unreachable (or an equivalent) isn't
supported.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127629 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14 22:41:50 +00:00
Jakob Stoklund Olesen
cf03e35d90 Place context in member variables instead of passing around pointers.
Use the opportunity to get rid of the trailing underscore variable names.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127618 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14 20:57:14 +00:00
John McCall
fb32507d09 Okay, some compilers complain if you provide the exception-specification
where none was before.  Just don't declare it and hope it's declared
in every translation unit that needs it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127612 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14 20:20:29 +00:00
John McCall
f32b3c54f0 Fix the exception-specification of abort() when declaring it in C++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127610 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14 20:10:50 +00:00
John McCall
2f9a9ed785 Make llvm_unreachable evaluate to __builtin_unreachable() in -Asserts
builds, which was the apparent consensus of PR8973 and llvmdev.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127608 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14 20:01:21 +00:00
Andrew Trick
3228cc259b Added SCEV::NoWrapFlags to manage unsigned, signed, and self wrap
properties.
Added the self-wrap flag for SCEV::AddRecExpr.
A slew of temporary FIXMEs indicate the intention of the no-self-wrap flag
without changing behavior in this revision.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127590 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14 16:50:06 +00:00
Mikhail Glushenkov
046d0bdaf0 Emacs mode string.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127576 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-14 04:20:57 +00:00
Duncan Sands
ba9934648f Speculatively revert commit 127478 (jsjodin) in an attempt to fix the
llvm-gcc-i386-linux-selfhost and llvm-x86_64-linux-checks buildbots.
The original log entry:
Remove optimization emitting a reference insted of label difference, since
it can create more relocations. Removed isBaseAddressKnownZero method,
because it is no longer used.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127540 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-12 13:07:37 +00:00
Owen Anderson
2ce5bf188d Teach FastISel to support register-immediate-immediate instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127496 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 21:33:55 +00:00
Jim Grosbach
2a09f878ef 80 columns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127495 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 21:02:27 +00:00
Jim Grosbach
108e4dbecb Trailing whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127493 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 20:59:19 +00:00
Jan Sjödin
e4f6d7461a Remove optimization emitting a reference insted of label difference, since it can create more relocations. Removed isBaseAddressKnownZero method, because it is no longer used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127478 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-11 19:37:02 +00:00
Rafael Espindola
f7fdad15d9 Add r127409 back now that the windows file was updated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127417 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 18:33:29 +00:00
Jakob Stoklund Olesen
4b0e1f1278 Revert r127409 which broke all the Windows bots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127413 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 18:01:43 +00:00
Rafael Espindola
7deb187736 Add support for MemoryBuffers that are not null terminated and add
support for creating buffers that cover only a part of a file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127409 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 16:10:30 +00:00
Che-Liang Chiou
2f5565d21c ptx: add the rest of special registers of ISA version 2.0
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127397 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 04:05:57 +00:00
Jakob Stoklund Olesen
38f6bd0fc8 Make SpillIs an optional pointer. Avoid creating a bunch of temporary SmallVectors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127388 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 01:21:58 +00:00
Devang Patel
6af531febe Introduce DebugInfoProbe. This is used to monitor how llvm optimizer is treating debugging information.
It generates output that lools like

8 times line number info lost by Scalar Replacement of Aggregates (SSAUp) 
1 times line number info lost by Simplify well-known library calls 
12 times variable info lost by Jump Threading



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127381 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 00:21:25 +00:00
Evan Cheng
b0519e15f7 Re-commit 127368 and 127371. They are exonerated.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127380 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-10 00:16:32 +00:00
Evan Cheng
02d7c92982 Revert 127368 and 127371 for now.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127376 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 23:53:17 +00:00
Evan Cheng
0f24d49aca Restore the default implementation of getCrossCopyRegClass: no need for cross-regclass copies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127371 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 23:15:40 +00:00
Evan Cheng
17adafc6c1 Change the definition of TargetRegisterInfo::getCrossCopyRegClass to be more
flexible.

If it returns a register class that's different from the input, then that's the
register class used for cross-register class copies.
If it returns a register class that's the same as the input, then no cross-
register class copies are needed (normal copies would do).
If it returns null, then it's not at all possible to copy registers of the
specified register class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127368 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 22:47:38 +00:00
Jan Sjödin
d1cba8727a Add createELFObjectTargetWriter method to TargetAsmBackend, which enables construction of non-standard ELFObjectWriters that can be used in MCJIT.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127346 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 18:44:41 +00:00
Jan Sjödin
01dff96461 Add constructors to MCElfStreamer and MCObjectStreamer to take an extra MCAssembler * argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127343 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 17:33:05 +00:00
Jan Sjödin
dd54ffda26 Add InitializeNativeAsmParser function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127341 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-09 17:25:46 +00:00
John McCall
cdc06fa3c7 Typo. Patch by arrowdodger.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127256 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 18:01:22 +00:00
Chris Lattner
db04b81014 fix incorrect comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127252 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 16:59:03 +00:00
Justin Holewinski
c6f24f4086 PTX: Add intrinsic support for ntid, ctaid, and nctaid registers
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127246 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-08 14:10:18 +00:00
Jakob Stoklund Olesen
0d8ccaa5c8 Let shrinkToUses optionally return a list of now dead machine instructions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127192 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 23:29:10 +00:00
Eric Christopher
d756eceb83 Typos.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127186 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 22:48:16 +00:00
Cameron Zwarich
be2119e8e2 Move getRegPressureLimit() from TargetLoweringInfo to TargetRegisterInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127175 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 21:56:36 +00:00
Duncan Sands
e54f64899f Often GCC can see that NumBuckets is zero here, resulting in a warning
about possibly swapped memset parameters.  Avoid the warning.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 19:38:38 +00:00
Jim Grosbach
42daf912e0 Tidy up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 19:28:43 +00:00
Owen Anderson
6154f6c929 Use the correct LHS type when determining the legalization of a shift's RHS type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127163 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 18:29:47 +00:00
Argyrios Kyrtzidis
a36be82664 Try fixing mingw build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127153 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 05:35:01 +00:00
Argyrios Kyrtzidis
128ccbb8e5 Do a compiler check that we use one of the types from PointerUnion[N], instead of a runtime check.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127145 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-07 01:30:20 +00:00
Nick Lewycky
d01f50f42c ConstantInt has some getters which return ConstantInt's or ConstantVector's of
the value splatted into every element. Extend this to getTrue and getFalse which
by providing new overloads that take Types that are either i1 or <N x i1>. Use
it in InstCombine to add vector support to some code, fixing PR8469!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127116 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-06 03:36:19 +00:00
Benjamin Kramer
88b0c6a59a Avoid zero-sized allocations when copying a fresh DenseMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127110 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 22:00:28 +00:00
Anton Korobeynikov
57caad7a33 Preliminary support for ARM frame save directives emission via MI flags.
This is just very first approximation how the stuff should be done
(e.g. ARM-only for now). More to follow.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127101 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 18:43:32 +00:00
Anton Korobeynikov
94c1b08033 Provide hooks to set MI flags in MachineInstrBuilder
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127100 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 18:43:20 +00:00
Anton Korobeynikov
b5e16af9ea Some first rudimentary support for ARM EHABI: print exception table in "text mode".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 18:43:15 +00:00
Anton Korobeynikov
6dd97471c4 Add FrameSetup MI flags
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127098 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 18:43:04 +00:00
Anton Korobeynikov
6647b59c92 Shorten AsmPrinterFlags filed to accomodate for future Flags field
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127097 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 18:42:54 +00:00
Benjamin Kramer
49d443053b Lazily allocate DenseMaps.
This makes lookup slightly more expensive but it's worth it, unused
DenseMaps are common in LLVM code apparently.

1% speedup on clang -O3 bzip2.c
4% speedup on clang -O3 oggenc.c (Release build of clang on i386/linux)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127088 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 16:43:41 +00:00
Che-Liang Chiou
0df2c50c2b ptx: add basic intrinsic support
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127084 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 14:17:37 +00:00
Andrew Trick
ece96f5713 Missing "virtual" keyword. Jakob's review.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127070 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 08:39:45 +00:00
Andrew Trick
e0ef509aeb Increased the register pressure limit on x86_64 from 8 to 12
regs. This is the only change in this checkin that may affects the
default scheduler. With better register tracking and heuristics, it
doesn't make sense to artificially lower the register limit so much.

Added -sched-high-latency-cycles and X86InstrInfo::isHighLatencyDef to
give the scheduler a way to account for div and sqrt on targets that
don't have an itinerary. It is currently defaults to 10 (the actual
number doesn't matter much), but only takes effect on non-default
schedulers: list-hybrid and list-ilp.

Added several heuristics that can be individually disabled for the
non-default sched=list-ilp mode. This helps us determine how much
better we can do on a given benchmark than the default
scheduler. Certain compute intensive loops run much faster in this
mode with the right set of heuristics, and it doesn't seem to have
much negative impact elsewhere. Not all of the heuristics are needed,
but we still need to experiment to decide which should be disabled by
default for sched=list-ilp.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127067 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 08:00:22 +00:00
Jin-Gu Kang
1c5730faca test commit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127059 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 02:36:09 +00:00
Jim Grosbach
27ea9999e8 Teach the register scavenger to take subregs into account when finding a free register.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127049 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-05 00:20:19 +00:00
Eric Christopher
515c67ee77 Support unregistering exception frames of functions when they are removed.
Patch by Johannes Schaub!

Fixes PR8548


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127047 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04 23:37:39 +00:00
Jakob Stoklund Olesen
979869c28e Renumber slot indexes locally when possible.
Initially, slot indexes are quad-spaced. There is room for inserting up to 3
new instructions between the original instructions.

When we run out of indexes between two instructions, renumber locally using
double-spaced indexes. The original quad-spacing means that we catch up quickly,
and we only have to renumber a handful of instructions to get a monotonic
sequence. This is much faster than renumbering the whole function as we did
before.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127023 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04 19:43:38 +00:00
Jakob Stoklund Olesen
bee41501fa Symbolize the default instruction distance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127013 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04 18:36:51 +00:00
Jakob Stoklund Olesen
beb9a1f9fd Deferred SlotIndex renumbering was a good idea but never used.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127008 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04 18:08:32 +00:00
Devang Patel
566bd12e54 Add ArrayRef variant.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126978 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04 01:20:33 +00:00
Jakob Stoklund Olesen
13ba2dab63 Use an IndexedMap instead of a DenseMap for the live-out cache.
This speeds up updateSSA() so it only accounts for 5% of the live range
splitting time.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126972 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-04 00:15:36 +00:00
Bill Wendling
e7147dba73 There are times when the landing pad won't have a call to 'eh.selector' in
it. It's been assumed up til now that it would be in its immediate
successor. However, this isn't necessarily the case. It could be in one of its
successor's successors.

Modify the code to more thoroughly check for an 'eh.selector' call in
successors. It only looks at a successor if we get there as a result of an
unconditional branch.

Testcase ObjC/exceptions-4.m in r126968.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126969 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 23:14:05 +00:00
Jim Grosbach
0f657b156f Allow a target to choose whether to prefer the scavenger emergency spill slot
be next to the frame pointer or the stack pointer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126956 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 20:01:52 +00:00
Richard Osborne
022708f221 Optimize fprintf -> iprintf if there are no floating point arguments
and siprintf is available on the target.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126940 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 14:20:22 +00:00
Richard Osborne
419454ad37 Optimize sprintf -> siprintf if there are no floating point arguments
and siprintf is available on the target.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126937 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 14:09:28 +00:00
Richard Osborne
3649824bec Optimize printf -> iprintf if there are no floating point arguments
and iprintf is available on the target. Currently iprintf is only
marked as being available on the XCore.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126935 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 13:17:51 +00:00
Tilmann Scheller
49d7999b89 Use X86_thiscall calling convention for Win64 as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126934 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 07:49:07 +00:00
Jakob Stoklund Olesen
f37712f486 Represent sentinel slot indexes with a null pointer.
This is much faster than using a pointer to a ManagedStatic object accessed with
a function call. The greedy register allocator is 5% faster overall just from
the SlotIndex default constructor savings.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126925 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 05:40:04 +00:00
Jakob Stoklund Olesen
a97ff8a027 Avoid comparing invalid slot indexes, and assert that it doesn't happen.
The SlotIndex created by the default construction does not represent a position
in the function, and it doesn't make sense to compare it to other indexes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126924 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 05:18:19 +00:00
Jakob Stoklund Olesen
acf9f48c5e Optimize SlotIndex equality tests.
IndexListEntries have unique indexes, so it is not necessary to dereference
pointers to them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126923 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-03 05:18:15 +00:00
Chris Lattner
fa09685a9a add some slice helper methods.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126878 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 20:55:51 +00:00
Duncan Sands
291bb70d93 Remove DIFactory. Patch by Devang.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126871 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 20:30:37 +00:00
Tilmann Scheller
f1cc70ca93 Add Win64 thiscall calling convention.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126862 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 19:29:22 +00:00
Rafael Espindola
38c4e53549 Add a special streamer to libLTO that just records symbols definitions and
uses.

The result produced by the streamer is used to give the linker more accurate
information and to add to llvm.compiler.used. The second improvement removes
the need for the user to add __attribute__((used)) to functions only used in
inline asm. The first one lets us build firefox with LTO on Darwin :-)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126830 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 04:14:42 +00:00
Dan Gohman
0b77e0f07d Make pred_iterator DefaultConstructible, and add an accessor to
retrieve the underlying getOperandNo() value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126804 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 00:11:28 +00:00
Jakob Stoklund Olesen
9763e2bf39 Move LiveIntervalMap::extendTo into LiveInterval itself.
This method could probably be used by LiveIntervalAnalysis::shrinkToUses, and
now it can use extendIntervalEndTo() which coalesces ranges.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126803 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-02 00:06:15 +00:00
Devang Patel
e9e16c5f52 Today, the language front ends produces llvm.dbg.* intrinsics, used to encode arguments' debug info, in order any way, most of the times. However, if a front end mix-n-matches llvm.dbg.declare and llvm.dbg.value intrinsics to encode debug info for arguments then code generator needs a way to find argument order.
Use 8 bits from line number field to keep track of argument ordering while encoding debug info for an argument. That leaves 24 bit for line no, DebugLoc also allocates 24 bit for line numbers. If a function has more than 255 arguments then rest of the arguments will be ordered by llvm.dbg.* intrinsics' ordering in IR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126793 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 22:58:13 +00:00
Dan Gohman
7ee42e6a28 Escape graph edge labels.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126788 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 22:12:24 +00:00
Dan Gohman
d50f3f8731 Remove the showline argument from the SMDiagnostic constructor
which constructs a diagnostic with no line to show.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126787 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 22:11:52 +00:00
Dan Gohman
b0cdabb6c2 Code simplification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126786 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 22:07:55 +00:00
Dan Gohman
181436f11b Simplify this code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126785 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 22:07:32 +00:00
Dan Gohman
9f0512d85f Change directory_entry::path() to return a const std::string & instead of
a StringRef, for the benefit of clients that want the result as a
nul-terminated string. Clients that expect a StringRef will get one via
the implicit conversion.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126784 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 22:07:09 +00:00
Dan Gohman
898fd7fd61 Revert PathV2 changes, as sys::fs::unique_file is not finished yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126773 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 19:50:55 +00:00
Chris Lattner
32e20a45e5 add a missing const qualifier for consistency.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126742 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 08:36:21 +00:00
Jim Grosbach
2d76c84514 Generalize the register matching code in DAGISel a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126731 91177308-0d34-0410-b5e6-96231b3b80d8
2011-03-01 01:37:19 +00:00
Talin
41ee4e57ea Add an END_WITH_NULL accessor for ConstantStruct.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126714 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 23:53:27 +00:00
Owen Anderson
5bff585ef7 Fix warning when building with clang++.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126679 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 19:58:06 +00:00
Dan Gohman
00141694fa Delete the GEPSplitter experiment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126671 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 19:47:47 +00:00
Dan Gohman
1551abdea6 Delete the SimplifyHalfPowrLibCalls pass, which was unused, and
only existed as the result of a misunderstanding.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126669 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 19:41:14 +00:00
Dan Gohman
c92383fd0d Delete the LiveValues pass. I won't get get back to the project it
was started for in the foreseeable future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126668 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 19:37:59 +00:00
Stuart Hastings
f222e595c0 Support for byval parameters on ARM. Will be enabled by a forthcoming
patch to the front-end.  Radar 7662569.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126655 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-28 17:17:53 +00:00
Chris Lattner
cdac46d18e add the ability to walk the scope tree and insert at not-the-current
scope.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126591 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27 22:51:57 +00:00
Chris Lattner
878ad7afa5 add a data() method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126590 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27 22:51:37 +00:00
Cameron Zwarich
eee444cc4e Fix PR9324 / <rdar://problem/9052489> by handling the case where a PHI has no uses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126567 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27 08:06:01 +00:00
Tobias Grosser
f3a83d6d0b cmake: Add xdot.py support as it already exists in autoconf.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126563 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27 04:11:05 +00:00
Tobias Grosser
a91f86c49a Pass the graph to the DOTGraphTraits.getEdgeAttributes().
This follows the interface of getNodeAttributes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126562 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-27 04:11:03 +00:00
Daniel Dunbar
0aa00f9110 Support: Add llvm::AreStatisticsEnabled().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126558 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-26 23:17:12 +00:00
Owen Anderson
95771afbfd Allow targets to specify a the type of the RHS of a shift parameterized on the type of the LHS.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126518 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 21:41:48 +00:00
Cameron Zwarich
f754f50805 Roll out r126425 and r126450 to see if it fixes the failures on the buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126488 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 16:30:32 +00:00
Nick Lewycky
49ff8a76d0 Update the NoFolder to work with current IRBuilder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126479 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-25 07:13:35 +00:00
Joerg Sonnenberger
93c65e6e66 Restore r125595 (reverted in r126336) with modifications:
Introduce a variable in the AsmParserExtension whether [] is valid in an
expression. If it is true, parse them like (). Enable this for ELF only.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126443 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 21:59:22 +00:00
Devang Patel
f410608271 Enable DebugInfo support for COFF object files.
Patch by Nathan Jeffords!



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126425 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 21:04:00 +00:00
Richard Osborne
21d7eb3f3b Add XCore intrinsic for eeu instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126384 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 13:39:18 +00:00
Duncan Sands
f7e9ad7172 Rewrite the vector part of getExtendedTypeAction to make it more
understandable (at least I find it easier to understand like this).
No intended functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126382 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 11:54:18 +00:00
Cameron Zwarich
8ca814c4e0 Merge information about the number of zero, one, and sign bits of live-out
registers at phis. This enables us to eliminate a lot of pointless zexts during
the DAGCombine phase. This fixes <rdar://problem/8760114>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126380 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 10:00:25 +00:00
Cameron Zwarich
9b6af8de58 Add a getNumSignBits() method to APInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126379 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 10:00:20 +00:00
Cameron Zwarich
324a24f6aa Add a mechanism for invalidating the LiveOutInfo of a PHI, and use it whenever
a block is visited before all of its predecessors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126378 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 10:00:16 +00:00
Cameron Zwarich
a46cd97818 Track blocks visited in reverse postorder.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126377 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 10:00:13 +00:00
Cameron Zwarich
e1497b9791 Refactor the LiveOutInfo interface into a few methods on FunctionLoweringInfo
and make the actual map private.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126376 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 10:00:08 +00:00
Michael J. Spencer
fae7f6de9e Depricate PathV1::isAbsolute.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126348 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-24 01:02:32 +00:00
Richard Osborne
d04b4937d1 Add XCore intrinsic for clre instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126322 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 18:52:05 +00:00
Richard Osborne
9935bd0819 Add llvm.xcore.waitevent intrinsic. The effect of this intrinsic is to enable
events on the thread and wait until a resource is ready to event. The vector
of the resource that is ready is returned.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126320 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 18:35:59 +00:00
Richard Osborne
292f62e06f Add XCore intrinsic for the setv instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126315 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 16:46:37 +00:00
Richard Osborne
2a2cb28526 Add XCore intrinsic for settw instruction.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126313 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 14:45:03 +00:00
Frits van Bommel
438208e8cb Implement TODO for implicit C-array-to-ArrayRef conversion.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126311 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 13:43:06 +00:00
Stuart Hastings
5129bdecd8 Omit private_extern declarations of extern symbols; followup to
r124468.  Patch by Rafael Avila de Espindola!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126297 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-23 02:27:05 +00:00
Nick Lewycky
2d76ad6df9 Fix C++0x incompatibility. The signature of std::make_pair<> changes from:
template <class T1, class T2> pair<T1,T2> make_pair(const T1&, const T2&);
to
  template <class T1, class T2> pair<V1, V2> make_pair(T1&&, T2&&);
so explicitly specifying the template arguments to make_pair<> is going to break
when C++0x rolls through. Replace them with equivalent std::pair<>. Patch by
James Dennett!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126256 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 22:48:47 +00:00
Devang Patel
50d280c14e Follow LLVM coding style.
clang uses DBuilder, so it requries corresponding change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126231 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 18:56:12 +00:00
Cameron Zwarich
5567869637 MachineConstantPoolValues are not uniqued, so they need to be freed if they
share entries. Add a DenseSet to MachineConstantPool for the MachineCPVs that
it owns.

This will hopefully fix the MC/ARM/elf-reloc-01.ll failure on the leaks bots.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126218 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 08:54:30 +00:00
Cameron Zwarich
4ecc82e592 Roll out r126169 and r126170 in an attempt to fix the selfhost bot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126185 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 03:24:52 +00:00
Cameron Zwarich
92efda7e91 Merge information about the number of zero, one, and sign bits of live-out registers
at phis. This enables us to eliminate a lot of pointless zexts during the DAGCombine
phase. This fixes <rdar://problem/8760114>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-22 00:46:27 +00:00
Devang Patel
68e6beeccc Revert r124611 - "Keep track of incoming argument's location while emitting LiveIns."
In other words, do not keep track of argument's location.  The debugger (gdb) is not prepared to see line table entries for arguments. For the debugger, "second" line table entry marks beginning of function body.
This requires some coordination with debugger to get this working. 
 - The debugger needs to be aware of prolog_end attribute attached with line table entries.
 - The compiler needs to accurately mark prolog_end in line table entries (at -O0 and at -O1+)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126155 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 23:21:26 +00:00
Richard Osborne
d83318450b Add XCore intrinsics for various instructions on ports.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126132 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 18:23:30 +00:00
Duncan Sands
2cfbf018a9 If the phi node was used by an unreachable instruction that ends up using
itself without going via a phi node then we could return false here in
spite of making a change.  Also, tweak the comment because this method
can (and always could) return true without deleting the original phi node.
For example, if the phi node was used by a read-only invoke instruction
which is used by another phi node phi2 which is only used by and only uses
the invoke, then phi2 would be deleted but not the invoke instruction and
not the original phi node.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126129 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 17:32:05 +00:00
Joerg Sonnenberger
7d0805dcb8 Use a vector of pairs to implement the section stack, not two
independent vectors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126099 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-21 01:07:42 +00:00
Oscar Fuentes
0b85d07d46 Put targets on folders, if the IDE supports the feature.
Requires CMake 2.8.3 or newer.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126092 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-20 22:06:10 +00:00
Argyrios Kyrtzidis
38297f5f76 Allow getting the address of the value in a PointerUnion or PointerIntPair if one is
confident enough that he knows what he is doing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126019 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19 03:55:58 +00:00
Ted Kremenek
3f912adeae Add ImmutableMap methods 'manualRetain()', 'manualRelease()', and 'getRootWithoutRetain()' to help more aggressively reclaim memory in the static analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126011 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-19 01:59:21 +00:00
Devang Patel
dc8c3fdcf1 Provide enums to build complex address calucation expressions.
(This is infact direct copy from DIFactory, which is disappearing soon.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125989 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18 23:28:53 +00:00
Devang Patel
f3a3214049 Remove unused tag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125988 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18 23:23:09 +00:00
Devang Patel
98d9f5d90d Provide tag strings for llvm specific tags.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125986 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18 23:06:29 +00:00
Devang Patel
a778f5c798 Do not lose debug info of an inlined function argument even if the argument is only used through GEPs.
This time with a fix that avoids using invalidated DenseMap iterator.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125984 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18 22:43:42 +00:00
Chris Lattner
0160c8a8bc Now that -loop-idiom uses TargetLibraryInfo properly, it doesn't
need to be pulled out of the pass manager when the user specifies 
-fno-builtin.  It can intelligently determine which libcalls to
optimize based on what is enabled in TargetLibraryInfo.  This 
allows -fno-builtin-foo to work someday.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125981 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-18 22:36:36 +00:00