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81948 Commits

Author SHA1 Message Date
Chris Lattner 7a4a29f89a minor cleanups 
llvm-svn: 101151
 2010-04-13 17:39:09 +00:00
Chris Lattner a06794201d Teach HasSideEffect about InitListExprs. Not having 
this caused us to codegen dead globals like this:

struct foo { int a; int b; };

static struct foo fooarray[] = {
  {1, 2},
  {4},
};

llvm-svn: 101150
 2010-04-13 17:34:23 +00:00
Chris Lattner 8d269dc329 make the rewriter add a #ifndef around the #define of __attribute__. 
Without it, there is no reason for a compiler that supports it to
emit the dead static globals that the rewriter labels attribute(used).

llvm-svn: 101149
 2010-04-13 17:33:56 +00:00
Dan Gohman 8a2dae57e2 Add a few comments. 
llvm-svn: 101148
 2010-04-13 17:07:06 +00:00
Dan Gohman 9d2d053e11 Eliminate MachineBasicBlock::const_livein_iterator and make 
MachineBasicBlock::livein_iterator a const_iterator, because
clients shouldn't ever be using the iterator interface to
mutate the livein set.

llvm-svn: 101147
 2010-04-13 16:57:55 +00:00
Dan Gohman dcacef3188 Rename MachineFrameInfo variables to MFI, for consistency with 
the rest of CodeGen.

llvm-svn: 101146
 2010-04-13 16:56:45 +00:00
Dan Gohman 6b1b1e4358 Move MachineRegisterInfo's isLiveIn and isLiveOut out of line. 
llvm-svn: 101145
 2010-04-13 16:55:37 +00:00
Dan Gohman a1cf9fef70 Use MachineBasicBlock::isLiveIn. 
llvm-svn: 101144
 2010-04-13 16:53:51 +00:00
Dan Gohman 39305067ad Delete an unused member variable. 
llvm-svn: 101143
 2010-04-13 16:51:39 +00:00
Dan Gohman 7ef0dc2163 Teach ScalarEvolution to simplify smax and umax when it can prove 
that one operand is always greater than another.

llvm-svn: 101142
 2010-04-13 16:51:03 +00:00
Dan Gohman fe4b29180b Minor code micro-optimizations. 
llvm-svn: 101141
 2010-04-13 16:49:23 +00:00
Eric Christopher 4016dcd625 Actually... return after the check for invalid input. 
llvm-svn: 101139
 2010-04-13 16:41:29 +00:00
Benjamin Kramer 55cfaa37de BumpPtrAllocator::Reset() doesn't need to allocate anything. (Thanks, Jakob) 
llvm-svn: 101138
 2010-04-13 16:38:06 +00:00
Douglas Gregor 38ae6ab6bc Refactor and simplify the computation of implicit conversion sequences 
for reference binding. The code attempted to handle both the
computation of the ICS and the actual conversion, but the latter is an
anachronism: we now use InitializationSequence for that. 

Sema::CheckReferenceInit is now a static function TryReferenceInit
that's only use within overload resolution, and has been simplified
slightly. It still needs to be updated per C++ [over.ics.ref], by
eliminating more of the lvalue/rvalue checks.

llvm-svn: 101136
 2010-04-13 16:31:36 +00:00
Douglas Gregor e5e775bc8e When returning the result of a call to an object of class type, do not 
return a NULL expression; return either an error or a proper
expression. Fixes PR6078.

llvm-svn: 101133
 2010-04-13 15:50:39 +00:00
Douglas Gregor 538be4622c During referencing binding, only consider conversion functions for 
direct reference binding when the source and target types are not
reference-related. Fixes PR6066.

llvm-svn: 101132
 2010-04-13 15:07:45 +00:00
Benjamin Kramer 5d8eb779d5 Update unittest for allocator laziness. 
llvm-svn: 101131
 2010-04-13 15:01:26 +00:00
Benjamin Kramer 5b0650bf6e Let BumpPtrAllocator lazily allocate the first slab. 
We have some code in llvm and clang where a BumpPtrAllocator is declared in a
class but never used in the common case. Stop wasting memory there.

llvm-svn: 101130
 2010-04-13 14:41:51 +00:00
Zhongxing Xu 17b33ed0cf Make all cases that we don't handle explicit. 
llvm-svn: 101129
 2010-04-13 13:15:19 +00:00
Zhongxing Xu b6f02c3d67 Dispatch all C++ cast expr to VisitCast(). 
llvm-svn: 101128
 2010-04-13 12:38:32 +00:00
Zhongxing Xu 7e61217d86 CFGBuilder: always add C++ member call expr as block-level expr. 
llvm-svn: 101127
 2010-04-13 09:38:01 +00:00
Owen Anderson b516f1c6cc Remove SCCVN from the CMake build system. 
llvm-svn: 101125
 2010-04-13 08:33:09 +00:00
John McCall 43314ab3ae Allow classes to befriend implicitly-declared members. Fixes PR6207 for 
members of non-templated classes.

llvm-svn: 101122
 2010-04-13 07:45:41 +00:00
Zhongxing Xu 7d4bc9a106 Add a cc1 option to specify the max number of nodes the analyzer can explore. 
llvm-svn: 101120
 2010-04-13 06:44:31 +00:00
John McCall 84821e7143 Parse constructor names in friend declarations. Part of the fix for 
PR6207.

llvm-svn: 101119
 2010-04-13 06:39:49 +00:00
Chris Lattner 069711865f checkpoint. 
llvm-svn: 101118
 2010-04-13 06:37:00 +00:00
Owen Anderson 9ed6abfe0b SCCVN, we hardly knew ye! 
llvm-svn: 101117
 2010-04-13 05:24:08 +00:00
Chris Lattner 33154c1fc6 Fix PR6826: GraphWriter delete the generated file before "dotty" load it, 
patch by 'ether'.

llvm-svn: 101116
 2010-04-13 04:35:39 +00:00
Fariborz Jahanian 33eb59a61b Remove this test for now until I can figure out 
why it keeps failing on buildbot (but not for me).

llvm-svn: 101115
 2010-04-13 02:16:35 +00:00
Bob Wilson af7674cbd4 Replace r101053 with a fix for getSOImmValRotate() so that it will correctly 
recognize all the valid rotated immediates.  This fixes the disassembler
issue and will also help codegen for some unusual constant values.

llvm-svn: 101114
 2010-04-13 02:11:48 +00:00
Dan Gohman 5867a56db8 Teach IndVarSimplify how to eliminate remainder operators where the 
numerator is an induction variable. For example, with code like this:

  for (i=0;i<n;++i)
    x[i%n] = 0;

IndVarSimplify will now recognize that i is always less than n inside
the loop, and eliminate the remainder.

llvm-svn: 101113
 2010-04-13 01:46:36 +00:00
John McCall 77e41c1cc6 Don't try to find a scope corresponding to the search DC for an unfound 
friend declaration;  this used to be important but is now just a waste of time
plus an unreasonable assertion.  Fixes PR6174.

llvm-svn: 101112
 2010-04-13 01:44:10 +00:00
Daniel Dunbar d33749b4a9 VMCore: Add Type::getIntN[Ptr]Ty, which are the obvious generic forms of 
Type::getInt{1,8,...}[Ptr]Ty, so code can consistently use the methods on Type
without occasionally needed to call IntegerType::get.

llvm-svn: 101111
 2010-04-13 01:39:07 +00:00
Daniel Dunbar e0a355af5d IRBuilder: Add Create{Shl,LShr,And,Or,Xor} methods from uin64_t and APInt constants. 
llvm-svn: 101110
 2010-04-13 01:38:57 +00:00
Fariborz Jahanian cb21e38dc5 Modify test to be darwin specific. 
llvm-svn: 101109
 2010-04-13 01:10:57 +00:00
Chris Lattner dc6040b357 add frontend support for -fdata-sections and -ffunction-sections, 
patch by Sylvere Teissier!

llvm-svn: 101108
 2010-04-13 00:38:24 +00:00
Fariborz Jahanian 08b0f66d2e Add support for objc_copyStruct to enforce 
atomicity of aggregate properties in setter/getter
methods. wip.

llvm-svn: 101107
 2010-04-13 00:38:05 +00:00
Chris Lattner 5b212a31a2 add llvm codegen support for -ffunction-sections and -fdata-sections, 
patch by Sylvere Teissier!

llvm-svn: 101106
 2010-04-13 00:36:43 +00:00
Devang Patel 74c10507a6 Fix debug info for cleanup block. 
llvm-svn: 101100
 2010-04-13 00:08:43 +00:00
Chris Lattner 9d94f04f27 cache the PP's SourceManager. 
llvm-svn: 101099
 2010-04-13 00:06:42 +00:00
John McCall 212fa2efb7 Diagnose declarations of conversion functions with declarators other than '()'. 
llvm-svn: 101098
 2010-04-13 00:04:31 +00:00
Chris Lattner 5dbefc6697 make the preprocessor listen to linemarker directives in -E mode, 
PR6101.  This is based on a patch and testcase by Jordy Rose!

llvm-svn: 101097
 2010-04-13 00:01:41 +00:00
Sean Callanan d75c8a0813 Build system fix to make llvm-mc properly build 
after edis.  Really, there ought to be some
mechanism to ensure that PARALLEL_DIRS get built
after DIRS.

llvm-svn: 101095
 2010-04-12 23:55:28 +00:00
Douglas Gregor b3cdaee190 Remove some dead FIXMEs 
llvm-svn: 101092
 2010-04-12 23:52:24 +00:00
Douglas Gregor 2c326bce38 Implement C++ [over.ics.user]p3, which restricts the final conversion 
from a conversion function template specialization to one of exact
match rank. We only know how to test this in C++0x with default
function template arguments, but it's also in the C++03 spec. Fixes
PR6285.

llvm-svn: 101089
 2010-04-12 23:42:09 +00:00
Douglas Gregor 5c0066f1cf Improve source-location information for C++ conversion functions, by 
copying the type location information from the conversion-type-id into
the type location information for the function type. Do something
similar for constructors and destructors, by giving their "void"
return type source-location information.

In all of these cases, we previously left this type-source information
uninitialized, which led to various unfortunate crashes.

We still aren't tracking good source-location information for the
actual names. That's PR6357.

John, please check my sanity on this.

llvm-svn: 101088
 2010-04-12 23:19:01 +00:00
Dan Gohman ebbd05f8ce Micro-optimize a few hot spots. 
llvm-svn: 101086
 2010-04-12 23:08:18 +00:00
Evan Cheng d0d8e3343a Use .set expression for x86 pic jump table reference to reduce assembly relocation. rdar://7738756 
llvm-svn: 101085
 2010-04-12 23:07:17 +00:00
Chris Lattner 1a9e873bf9 fix a minor bug I noticed while work with Jordy's patch for PR6101, 
in an input file like this:

# 42
int x;

we were emitting:

# <something>
 int x;

(with a space before the int) because we weren't clearing the leading 
whitespace flag properly after the \n from the directive was handled.

llvm-svn: 101084
 2010-04-12 23:04:41 +00:00
Dan Gohman 11862a6ed3 Add fast paths to ScalarEvolution::getSizeOf and getOffsetOf, as 
they're used a lot by getNodeForGEP, which can be called a lot.
This speeds up -iv-users by around 15% on several testcases.

llvm-svn: 101083
 2010-04-12 23:03:26 +00:00