Commit Graph

227 Commits

Author SHA1 Message Date
Chris Lattner
35bda8914c enhance vmcore to know that udiv's can be exact, and add a trivial
instcombine xform to exercise this.

Nothing forms exact udivs yet though.  This is progress on PR8862



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124992 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-06 21:44:57 +00:00
Rafael Espindola
bea4626f93 First step in fixing PR8927:
Add a unnamed_addr bit to global variables and functions. This will be used
to indicate that the address is not significant and therefore the constant
or function can be merged with others.

If an optimization pass can show that an address is not used, it can set this.

Examples of things that can have this set by the FE are globals created to
hold string literals and C++ constructors.

Adding unnamed_addr to a non-const global should have no effect unless
an optimization can transform that global into a constant.

Aliases are not allowed to have unnamed_addr since I couldn't figure
out any use for it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123063 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-08 16:42:36 +00:00
Nick Lewycky
476b242fe7 Add missing standard headers. Patch by Joerg Sonnenberger!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122193 91177308-0d34-0410-b5e6-96231b3b80d8
2010-12-19 20:43:38 +00:00
Chris Lattner
695b281186 Generalize the darwin wrapper hack to work with generic macho triples as well as darwin ones.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120346 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29 23:29:54 +00:00
Michael J. Spencer
1f6efa3996 Merge System into Support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120298 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-29 18:16:10 +00:00
Dale Johannesen
bb811a2445 Add X86 MMX type to bitcode and Type.
(The Ada bindings probably need it too, but all the
obvious places to change say "do not edit this file".)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113618 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-10 20:55:01 +00:00
Dan Gohman
70c2fc0823 Discard metadata produced by LLVM 2.7. The value enumeration it used
is different from what the code now uses in a two ways: NamedMDNodes
were considered Values and included in the numbering, and the
function-local metadata counter wasn't reset between functions.

The later problem breaks lazy deserialization, so instead of trying
to emulate the old numbering, just drop the old metadata. The only
in-tree use case is debug info with LTO, where the QOI loss is
considered acceptable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113557 91177308-0d34-0410-b5e6-96231b3b80d8
2010-09-09 23:12:39 +00:00
Chris Lattner
61c70e98ac remove unions from LLVM IR. They are severely buggy and not
being actively maintained, improved, or extended.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112356 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-28 04:09:24 +00:00
Bill Wendling
55ae515f9d Create the new linker type "linker_private_weak_def_auto".
It's similar to "linker_private_weak", but it's known that the address of the
object is not taken. For instance, functions that had an inline definition, but
the compiler decided not to inline it. Note, unlike linker_private and
linker_private_weak, linker_private_weak_def_auto may have only default
visibility.  The symbols are removed by the linker from the final linked image
(executable or dynamic library).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111684 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-20 22:05:50 +00:00
Chris Lattner
2359e5193a avoid undefined behavior negating minint.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110117 91177308-0d34-0410-b5e6-96231b3b80d8
2010-08-03 16:57:03 +00:00
Dan Gohman
17aa92c92a Make NamedMDNode not be a subclass of Value, and simplify the interface
for creating and populating NamedMDNodes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109061 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 23:38:33 +00:00
Dan Gohman
29d2716766 Add some debug output to help diagnose PR7689.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109036 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 21:18:37 +00:00
Dan Gohman
872814ae04 Disallow null as a named metadata operand.
Make MDNode::destroy private.
Fix the one thing that used MDNode::destroy, outside of MDNode itself.

One should never delete or destroy an MDNode explicitly. MDNodes
implicitly go away when there are no references to them (implementation
details aside).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@109028 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-21 18:54:18 +00:00
Dan Gohman
19538d1e9f Add support for remapping metadata kind IDs when reading in a
bitcode file, so that two bitcode files where the same metadata kind
name happens to have been assigned a different ID can still be
linked together.

Eliminate the restriction that metadata kind IDs can't be 0.

Change MD_dbg from 1 to 0, because we can now, and because it's
less mysterious that way.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@108939 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-20 21:42:28 +00:00
Bill Wendling
5e721d7682 Implement the "linker_private_weak" linkage type. This will be used for
Objective-C metadata types which should be marked as "weak", but which the
linker will remove upon final linkage. However, this linkage isn't specific to
Objective-C.

For example, the "objc_msgSend_fixup_alloc" symbol is defined like this:

      .globl l_objc_msgSend_fixup_alloc
      .weak_definition l_objc_msgSend_fixup_alloc
      .section __DATA, __objc_msgrefs, coalesced
      .align 3
l_objc_msgSend_fixup_alloc:
       .quad   _objc_msgSend_fixup
       .quad   L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".

Currently only supported on Darwin platforms.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107433 91177308-0d34-0410-b5e6-96231b3b80d8
2010-07-01 21:55:59 +00:00
Bill Wendling
07d3177117 Revert r107205 and r107207.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107215 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29 22:34:52 +00:00
Bill Wendling
207855cff9 Introducing the "linker_weak" linkage type. This will be used for Objective-C
metadata types which should be marked as "weak", but which the linker will
remove upon final linkage. For example, the "objc_msgSend_fixup_alloc" symbol is
defined like this:

       .globl l_objc_msgSend_fixup_alloc
       .weak_definition l_objc_msgSend_fixup_alloc
       .section __DATA, __objc_msgrefs, coalesced
       .align 3
l_objc_msgSend_fixup_alloc:
        .quad   _objc_msgSend_fixup
        .quad   L_OBJC_METH_VAR_NAME_1

This is different from the "linker_private" linkage type, because it can't have
the metadata defined with ".weak_definition".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@107205 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-29 21:24:00 +00:00
Gabor Greif
fc91e7d9cb resort to ArgOperand API
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106942 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-26 09:35:09 +00:00
Devang Patel
6209869f83 Speedup bitcode writer. Do not walk all values for all functions to emit function local metadata. In one testcase, probably worst case scenario, the 70x speed up is seen.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@105360 91177308-0d34-0410-b5e6-96231b3b80d8
2010-06-02 23:05:04 +00:00
Dan Gohman
a37dd3e6a5 Bitcode support for allocas with arbitrary array size types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104915 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-28 01:38:28 +00:00
Dan Gohman
c2f500aaed Don't flush the raw_ostream in llvm::WriteBitcodeToFile; it's at
the wrong level. Clients which need to leave the stream open but
which still require the bitcode bits to be on disk should call
flush themselves.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104885 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 20:26:51 +00:00
Dan Gohman
d928fb670f Don't special-case stdout in llvm::WriteBitcodeToFile; just consider
it to be the caller's responsibility to provide a stream in binary
mode. This fixes a layering violation and avoids an outs() call.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104878 91177308-0d34-0410-b5e6-96231b3b80d8
2010-05-27 20:06:51 +00:00
Eric Christopher
551754c495 Revert 101465, it broke internal OpenGL testing.
Probably the best way to know that all getOperand() calls have been handled
is to replace that API instead of updating.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101579 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 23:37:20 +00:00
Gabor Greif
4ec2258ffb reapply r101434
with a fix for self-hosting

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101465 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 15:33:14 +00:00
Gabor Greif
607a7ab3da back out r101423 and r101397, they break llvm-gcc self-host on darwin10
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101434 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-16 01:16:20 +00:00
Gabor Greif
2ff961f668 reapply r101364, which has been backed out in r101368
with a fix

rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101397 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15 20:51:13 +00:00
Gabor Greif
9ee1720811 back out r101364, as it trips the linux nightlybot on some clang C++ tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101368 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15 12:46:56 +00:00
Gabor Greif
165dac08d1 rotate CallInst operands, i.e. move callee to the back
of the operand array

the motivation for this patch are laid out in my mail to llvm-commits:
more efficient access to operands and callee, faster callgraph-construction,
smaller compiler binary


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101364 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-15 10:49:53 +00:00
Chris Lattner
a6245247e9 Add special case bitcode support for DebugLoc. This avoids
having the bitcode writer materialize mdnodes for all the
debug location tuples when writing out the bc file and 
stores the information in a more compact form.  For example,
the -O0 -g bc file for combine.c in 176.gcc shrinks from
739392 to 512096 bytes.

This concludes my planned short-term debug info work.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@100261 91177308-0d34-0410-b5e6-96231b3b80d8
2010-04-03 02:17:50 +00:00
Gabor Greif
c9f7500d17 Finally land the InvokeInst operand reordering.
I have audited all getOperandNo calls now, fixing
hidden assumptions. CallSite related uglyness will
be eliminated successively.

Note this patch has a long and griveous history,
for all the back-and-forths have a look at
CallSite.h's log.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99399 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-24 13:21:49 +00:00
Gabor Greif
1cde4af157 backing out r99170 because it still fails on clang-x86_64-darwin10-fnt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99171 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 09:11:00 +00:00
Gabor Greif
9b1061e2e3 Now that hopefully all direct accesses to InvokeInst operands are fixed
we can reapply the InvokeInst operand reordering patch. (see r98957).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99170 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-22 08:28:00 +00:00
Gabor Greif
cc52ed0c4f back out r98957, it broke http://smooshlab.apple.com:8010/builders/clang-x86_64-darwin10-fnt/builds/703 in the nightly test suite
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98958 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 13:50:02 +00:00
Gabor Greif
f4f10e3779 Recommit r80858 again (which has been backed out in r80871).
This time I did a self-hosted bootstrap on Linux x86-64,
with no problems. Let's see how darwin 64-bit self-hosting
goes. At the first sign of failure I'll back this out.

Maybe the valgrind bots give me a hint of what may be wrong
(it at all).



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98957 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-19 11:55:53 +00:00
Chris Lattner
93b122d3c4 reapply r98656 unmodified, which exposed the asmprinter not
handling constant unions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98680 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16 21:25:55 +00:00
Daniel Dunbar
b85c7100c5 Revert r98656, its breaking all over the place.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98662 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16 19:35:34 +00:00
Chris Lattner
8b3b34f410 improve support for uniontype and ConstantUnion, patch by Tim Northover!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98656 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-16 19:15:03 +00:00
Chris Lattner
fdfeb6976f Add support for a union type in LLVM IR. Patch by Talin!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96011 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12 20:49:41 +00:00
Evan Cheng
3922a9ba84 Also recognize armv6t2-* and armv5te-* triplets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96008 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12 20:39:35 +00:00
Evan Cheng
0f8868b171 Add ARM bitcode file magic.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96006 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-12 20:13:44 +00:00
Victor Hernandez
2c482f4895 We were not writing bitcode for function-local metadata whose operands have been erased (making it not have any more function-local operands)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94842 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-29 21:19:19 +00:00
Jeffrey Yasskin
f0356fe140 Kill ModuleProvider and ghost linkage by inverting the relationship between
Modules and ModuleProviders. Because the "ModuleProvider" simply materializes
GlobalValues now, and doesn't provide modules, it's renamed to
"GVMaterializer". Code that used to need a ModuleProvider to materialize
Functions can now materialize the Functions directly. Functions no longer use a
magic linkage to record that they're materializable; they simply ask the
GVMaterializer.

Because the C ABI must never change, we can't remove LLVMModuleProviderRef or
the functions that refer to it. Instead, because Module now exposes the same
functionality ModuleProvider used to, we store a Module* in any
LLVMModuleProviderRef and translate in the wrapper methods.  The bindings to
other languages still use the ModuleProvider concept.  It would probably be
worth some time to update them to follow the C++ more closely, but I don't
intend to do it.

Fixes http://llvm.org/PR5737 and http://llvm.org/PR5735.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94686 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-27 20:34:15 +00:00
Victor Hernandez
3cd7c3db99 Avoid modifying ValueEnumerator's MD ValueList by choosing which function-local MD to write based on the function currently being written
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93441 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-14 19:38:44 +00:00
Victor Hernandez
8ea5d4c529 In WriteFunction(), write function-local metadata before we write the instructions, so instruction's references to metadata are fully resolved by the time they get written.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93403 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-14 01:50:08 +00:00
Victor Hernandez
2cd4244815 Fix comment typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93355 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-13 21:25:04 +00:00
Victor Hernandez
0c316416bd Write function-local metadata as a metadata subblock of a funciton block
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93339 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-13 19:37:33 +00:00
Victor Hernandez
3047384a0f Revert 93270 pending investigation of how stray non-constant values end up in ValueEnumerator's ValueList during WriteConstants()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93289 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-13 03:18:30 +00:00
Victor Hernandez
994a204570 Make WriteConstants() more robust against stray values in ValueEnumerator's ValueList
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93270 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-12 23:37:59 +00:00
Victor Hernandez
24e64df7ec Compute isFunctionLocal in MDNode ctor or via argument in new function getWhenValsUnresolved().
Document PFS argument to ParseValID() and ConvertGlobalOrMetadataValIDToValue().



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93108 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-10 07:14:18 +00:00
Devang Patel
0386f01e06 Use separate namespace for named metadata.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92931 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-07 19:39:36 +00:00