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Author SHA1 Message Date
Daniel Dunbar
5c9c118600 Tweak darwin::Assemble and add a FIXME. 
llvm-svn: 68165
 2009-04-01 00:27:44 +00:00
Ted Kremenek
0df7051783 Add '-emit-pth' option to clang-cc as an alternate API for the high-level driver 
to generate PTH files. Soon we will remove from clang-cc the GCC-style '-x
c-header' interface for generating PTH files and push this logic to 'clang'.

llvm-svn: 68164
 2009-04-01 00:23:28 +00:00
Misha Brukman
5fc1a0339c * Fixed spelling of `invertible' 
* Simplified if statement

llvm-svn: 68163
 2009-04-01 00:15:46 +00:00
Anders Carlsson
7a6f8b9281 Fix a mangling bug where functions with no arguments weren't getting the 'v' parameter specifier. 
llvm-svn: 68162
 2009-04-01 00:15:23 +00:00
Daniel Dunbar
08b216abf1 Add Target hooks for IRgen of [cf]string literals. 
- Notably, set section on cfstring literal string data (for now, this
   is done everywhere because it matches what we were already doing
   for the CFString data itself)

 - <rdar://problem/6599098> [irgen] linker requires objc string data
   to go into cstring

llvm-svn: 68160
 2009-03-31 23:42:16 +00:00
Douglas Gregor
a9d1032f9c Allow the use of pointers to const within PointerUnion. 
llvm-svn: 68159
 2009-03-31 23:19:54 +00:00
Chris Lattner
169b2f191d add a converting operator 
llvm-svn: 68158
 2009-03-31 23:09:51 +00:00
Ted Kremenek
7062c50772 More code reshuffling. No functionality change. 
llvm-svn: 68157
 2009-03-31 23:00:32 +00:00
Chris Lattner
2d8cd80ee0 reimplement BitcodeReaderValueList in terms of WeakVH instead of making 
it be an LLVM IR User object.

llvm-svn: 68156
 2009-03-31 22:55:09 +00:00
Chris Lattner
f41e87f4cd Change UsedArray to be a vector of WeakVH to fix a dangling pointer problem that occurs when 
attribute(used) and asm renaming are used together.

llvm-svn: 68155
 2009-03-31 22:37:52 +00:00
Chris Lattner
2739d2bbe6 remove some obsolete comments, use an AssertingVH. 
llvm-svn: 68151
 2009-03-31 22:17:44 +00:00
Chris Lattner
f72ce6ea8b Make the key of ValueRankMap an AssertingVH, so that we die violently 
if it dangles.

llvm-svn: 68150
 2009-03-31 22:13:29 +00:00
Chris Lattner
90234f34c6 Add two new classes: WeakVH and AssertingVH. These are both "ValueHandles", 
which are effectively smart pointers to Value*'s.  They are both very light
weight and simple, and react to values being destroyed or being RAUW'd.

WeakVN does a best effort to follow a value around, including through RAUW 
operations and will get nulled out of the value is destroyed.  This is useful
for the eventual "metadata that references a value" work, because it is a
reference to a value that does not show up on its use_* list.

AssertingVH is a pointer that compiles down to a dumb raw pointer when 
assertions are disabled.  When enabled, it emits an assertion if the 
pointed-to value is destroyed while it is still being referenced.  This
is very useful for Maps and other things, and should have caught the recent
bugs in CallGraph and Reassociate, for example.

llvm-svn: 68149
 2009-03-31 22:11:05 +00:00
Daniel Dunbar
7c92528530 Driver: Implement basic --help text. 
- PR3875.
 - <rdar://problem/6615249> [driver] ccc should support some form of
   --help

llvm-svn: 68148
 2009-03-31 21:38:17 +00:00
Chris Lattner
e756f15703 teach PointerLikeTypeTraits that all pointers to pointers may only be 4-byte aligned. 
llvm-svn: 68147
 2009-03-31 21:28:39 +00:00
Daniel Dunbar
77684ead4b Driver: Add OptTable::getOptionKind. 
Also, removed default value for getOptionMetaVar.

llvm-svn: 68146
 2009-03-31 21:26:12 +00:00
Chris Lattner
e0d25e42e9 add some accessors so I can play games with DenseMaps. 
llvm-svn: 68145
 2009-03-31 20:57:23 +00:00
Daniel Dunbar
e521a8994c Driver: Forward -Wp, and -Xpreprocessor arguments to clang when using 
the preprocessor.
 - PR3602.

 - As is inherent in the blanket forwarding options, this will only
   work if clang-cc happens to accept what the user passed. Users by
   and large should use driver options to interact with the
   preprocessor, if at all possible.

llvm-svn: 68144
 2009-03-31 20:53:55 +00:00
Evan Cheng
826b6f0f7c Throttle back "fold select into operand" transformation. InstCombine should not generate selects of two constants unless they are selects of 0 and 1. 
e.g.
define i32 @t1(i32 %c, i32 %x) nounwind {
       %t1 = icmp eq i32 %c, 0
       %t2 = lshr i32 %x, 18
       %t3 = select i1 %t1, i32 %t2, i32 %x
       ret i32 %t3
}

was turned into

define i32 @t2(i32 %c, i32 %x) nounwind {
       %t1 = icmp eq i32 %c, 0
       %t2 = select i1 %t1, i32 18, i32 0
       %t3 = lshr i32 %x, %t2
       ret i32 %t3
}

For most targets, that means materializing two constants and then a select. e.g. On x86-64

movl    %esi, %eax
shrl    $18, %eax
testl   %edi, %edi
cmovne  %esi, %eax
ret

=>

xorl    %eax, %eax
testl   %edi, %edi
movl    $18, %ecx
cmovne  %eax, %ecx
movl    %esi, %eax
shrl    %cl, %eax
ret

Also, the optimizer and codegen can reason about shl / and / add, etc. by a constant. This optimization will hinder optimizations using ComputeMaskedBits.

llvm-svn: 68142
 2009-03-31 20:42:45 +00:00
Ted Kremenek
4e81c3ccac Allow two codepaths for PathDiagnostic generation. This patch mainly consists of 
refactoring to make this possible (no functionality change).

llvm-svn: 68141
 2009-03-31 20:22:36 +00:00
Douglas Gregor
b046ffb002 Some cleanup and renaming. No functionality change 
llvm-svn: 68140
 2009-03-31 20:22:05 +00:00
Daniel Dunbar
a207254f94 Driver: Add extra parameters for help text to option definitions. 
- Currently unused.

And yes, now may be about the time I want a TableGen backend.

llvm-svn: 68139
 2009-03-31 20:12:05 +00:00
Daniel Dunbar
4cb6715434 Add two FIXMEs 
llvm-svn: 68138
 2009-03-31 20:10:05 +00:00
Douglas Gregor
7ef46d9ae2 Improve the dependent nested-name-specifier test a bit 
llvm-svn: 68136
 2009-03-31 20:07:16 +00:00
Evan Cheng
0d551591ea Fully general expansion of integer shift of any size. 
llvm-svn: 68134
 2009-03-31 19:39:24 +00:00
Evan Cheng
d9d6e427d6 i128 shift libcalls are not available on x86. 
llvm-svn: 68133
 2009-03-31 19:38:51 +00:00
Daniel Dunbar
35579146aa x86_32 Darwin ABI: Treat empty unions like empty structures. 
- Current return-arguments-32 status: 15/1000 failures

llvm-svn: 68132
 2009-03-31 19:01:39 +00:00
Ted Kremenek
7b4df3c3e6 Rename clang.[cpp,h] to clang-cc.[cpp,h] to reflect the name change of the 
low-level frontend driver.

llvm-svn: 68131
 2009-03-31 18:58:14 +00:00
Ted Kremenek
97823d32ea Update VS project. 
llvm-svn: 68130
 2009-03-31 18:57:19 +00:00
Dan Gohman
6b42dfddf4 Reapply 68073, with fixes. EH Landing-pad basic blocks are not 
entered via fall-through. Don't miss fallthroughs from blocks
terminated by conditional branches. Also, move
isOnlyReachableByFallthrough out of line.

llvm-svn: 68129
 2009-03-31 18:39:13 +00:00
Douglas Gregor
aa59489b18 Implement template instantiation for template names, including both 
template template parameters and dependent template names. For
example, the oft-mentioned

  typename MetaFun::template apply<T1, T2>::type

can now be instantiated, with the appropriate name lookup for "apply".

llvm-svn: 68128
 2009-03-31 18:38:02 +00:00
Mikhail Glushenkov
eccc5967bf Do not pass '-relocation-model=pic' to llc. 
Does not work well on 32 bit targets. Bug reported by Albert Graef.

This patch also adds new "-Wllc,option" syntax to pass options to llc.

llvm-svn: 68127
 2009-03-31 18:33:54 +00:00
Douglas Gregor
1d249d984c Stop guessing, start thinking, and make PointerUnion3::is actually be correct. 
llvm-svn: 68126
 2009-03-31 18:31:03 +00:00
Fariborz Jahanian
89d239796a Patch to fix proptocol reference ir-gen for GNU runtime. 
Patch by David Chisnal.

llvm-svn: 68125
 2009-03-31 18:27:22 +00:00
Dan Gohman
6161b3ccf6 Add an explicit -asm-verbose to these tests, to make it 
possible to run the tests with -asm-verbose defaulting
to false.

llvm-svn: 68124
 2009-03-31 18:20:47 +00:00
Fariborz Jahanian
63a224ad59 ir-gen support for nonfragile abi's synthesized ivars. 
llvm-svn: 68122
 2009-03-31 18:11:23 +00:00
Daniel Dunbar
8eb473c477 Driver: Call 'as' directly on FreeBSD. 
- Patch by Ed Schouten!

llvm-svn: 68121
 2009-03-31 17:45:15 +00:00
Devang Patel
4ce6e69022 Update call graph after inlining invoke. 
Patch by Jay Foad.

llvm-svn: 68120
 2009-03-31 17:36:12 +00:00
Daniel Dunbar
d640be24fd (LLVM up) Update to use llvm::sys::getHostTriple(). 
- Always pass -triple to clang-cc (-arch will be removed).

 - clang-cc doesn't play guess work with the target triple anymore.

llvm-svn: 68119
 2009-03-31 17:35:15 +00:00
Daniel Dunbar
fb1a6eb69b Add llvm::sys::getHostTriple and remove 
llvm::sys::getOS{Name,Version}.

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

llvm-svn: 68118
 2009-03-31 17:30:15 +00:00
Steve Naroff
1bf3b718cd Add -Wdeprecated-declarations to driver and add a test case. 
llvm-svn: 68117
 2009-03-31 17:28:26 +00:00
Anders Carlsson
452e1c8a6a We fully support namespace aliases now. 
llvm-svn: 68116
 2009-03-31 17:17:14 +00:00
Fariborz Jahanian
3254a6f94c More toward nonfragile abi's synthesized ivars. 
llvm-svn: 68115
 2009-03-31 17:00:52 +00:00
Steve Naroff
66afeb5968 Some "prep" work for handling ObjC @-string constants that contain UTF-8. No functionality change. 
Changed GenerateConstantString() to take an ObjCStringLiteral (instead of a std::string). While this isn't strictly necessary, it seems cleaner and allows us to cache to "containsNonAscii" if necessary (to avoid checking in both Sema and CodeGen).

llvm-svn: 68114
 2009-03-31 16:53:37 +00:00
Dan Gohman
d51f196ff5 Minor top-level comment fix. 
llvm-svn: 68113
 2009-03-31 16:51:18 +00:00
Dan Gohman
90ea62cba6 Tidy up some comments. 
llvm-svn: 68112
 2009-03-31 16:48:35 +00:00
Dan Gohman
0837aa99ea Add a comment. 
llvm-svn: 68111
 2009-03-31 16:46:45 +00:00
Douglas Gregor
f1b876d5de Implement -Wmissing-prototypes. Fixes PR3911. 
llvm-svn: 68110
 2009-03-31 16:35:03 +00:00
Rafael Espindola
9277379fc0 remove unused arguments. 
llvm-svn: 68109
 2009-03-31 16:16:57 +00:00
Steve Naroff
ea9a107ada Add support for -Wdeprecated-declarations. 
This fixes <rdar://problem/6712496> Unable to disable deprecated warning.

llvm-svn: 68108
 2009-03-31 15:00:11 +00:00