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108016 Commits

Author SHA1 Message Date
Douglas Gregor 678d76c026 Introduce the notion of instantiation dependence into Clang's AST. A 
type/expression/template argument/etc. is instantiation-dependent if
it somehow involves a template parameter, even if it doesn't meet the
requirements for the more common kinds of dependence (dependent type,
type-dependent expression, value-dependent expression).

When we see an instantiation-dependent type, we know we always need to
perform substitution into that instantiation-dependent type. This
keeps us from short-circuiting evaluation in places where we
shouldn't, and lets us properly implement C++0x [temp.type]p2.

In theory, this would also allow us to properly mangle
instantiation-dependent-but-not-dependent decltype types per the
Itanium C++ ABI, but we aren't quite there because we still mangle
based on the canonical type in cases like, e.g.,

  template<unsigned> struct A { };
  template<typename T>
    void f(A<sizeof(sizeof(decltype(T() + T())))>) { }
  template void f<int>(A<sizeof(sizeof(int))>);

and therefore get the wrong answer.

llvm-svn: 134225
 2011-07-01 01:22:09 +00:00
Akira Hatanaka f2bcad972d Improve Mips back-end's handling of DBG_VALUE. 
llvm-svn: 134224
 2011-07-01 01:04:43 +00:00
Dan Gohman 54664ed714 Improve constant folding of undef for cmp and select operators. 
llvm-svn: 134223
 2011-07-01 01:03:43 +00:00
Eric Christopher 29f1db85dd Add support for the 'j' immediate constraint. This is conditionalized on 
supporting the instruction that the constraint is for 'movw'.

Part of rdar://9119939

llvm-svn: 134222
 2011-07-01 01:00:07 +00:00
Dan Gohman ca8d9e1341 Improve constant folding of undef for binary operators. 
llvm-svn: 134221
 2011-07-01 00:42:17 +00:00
Eric Christopher c011d31543 Add support for the ARM 't' register constraint. And another testcase 
for the 'x' register constraint.

Part of rdar://9119939

llvm-svn: 134220
 2011-07-01 00:30:46 +00:00
Evan Cheng d8e27a584e Switch SubtargetFeatures from std::string to StringRef. 
llvm-svn: 134219
 2011-07-01 00:23:10 +00:00
Eric Christopher f09b0f1043 We'll return a null RC by default if we can't match. 
Part of rdar://9119939

llvm-svn: 134217
 2011-07-01 00:19:27 +00:00
Rafael Espindola 4b522de5c0 Add 134199 back, but disable the optimization when the second copy is a kill. 
llvm-svn: 134216
 2011-07-01 00:16:54 +00:00
Eric Christopher f1c74595aa Add support for the 'x' constraint. 
Part of rdar://9307836 and rdar://9119939

llvm-svn: 134215
 2011-07-01 00:14:47 +00:00
John McCall 3a4a4c5228 Change the mangling of enclosing template template parameters 
that serve as the base template name of an unresolved-name to
be mangled as a substitution.

llvm-svn: 134213
 2011-07-01 00:04:39 +00:00
Bill Wendling c737ac1816 Remove tabs. 
llvm-svn: 134212
 2011-06-30 23:59:38 +00:00
Eric Christopher 1f054f27af Capitalize the unsigned part of the initializer. 
llvm-svn: 134211
 2011-06-30 23:59:16 +00:00
Eric Christopher cf2007ca78 Rename Pair to RCPair lacking any better naming ideas. 
llvm-svn: 134210
 2011-06-30 23:50:52 +00:00
Bill Wendling 40cc749788 Improve comment: Show the register the DWARF label is added to. 
llvm-svn: 134209
 2011-06-30 23:47:40 +00:00
Bill Wendling 3f049b8b7e Use the correct registers on X86_64. 
llvm-svn: 134208
 2011-06-30 23:47:14 +00:00
Jakob Stoklund Olesen d0e2352b65 Fix a problem with fast-isel return values introduced in r134018. 
We would put the return value from long double functions in the wrong
register.

This fixes gcc.c-torture/execute/conversion.c

llvm-svn: 134205
 2011-06-30 23:42:18 +00:00
Jim Grosbach e9cc901814 Refact ARM Thumb1 tMOVr instruction family. 
Merge the tMOVr, tMOVgpr2tgpr, tMOVtgpr2gpr, and tMOVgpr2gpr instructions
into tMOVr. There's no need to keep them separate. Giving the tMOVr
instruction the proper GPR register class for its operands is sufficient
to give the register allocator enough information to do the right thing
directly.

llvm-svn: 134204
 2011-06-30 23:38:17 +00:00
Eric Christopher f45daac30f Add support for the 'h' constraint. 
Part of rdar://9119939

llvm-svn: 134203
 2011-06-30 23:23:01 +00:00
Bill Wendling b403f0c4ed Add target a target hook to get the register number used by the compact unwind 
encoding for the registers it knows about. Return -1 if it can't handle that
register.

llvm-svn: 134202
 2011-06-30 23:20:32 +00:00
Rafael Espindola abe5f97634 Revert my previous patch while I debug llvm-gcc bootstrap. 
llvm-svn: 134201
 2011-06-30 22:58:17 +00:00
Bill Wendling 2fd8d775df Add one more comment to the FDE verbose asm output. 
llvm-svn: 134200
 2011-06-30 22:35:49 +00:00
Rafael Espindola 027cb82657 Don't give up on coalescing A and B when we find 
A = X
B = X

Instead, proceed as if we had found

A = X
B = A

llvm-svn: 134199
 2011-06-30 22:24:13 +00:00
Eric Christopher c486b47b15 Add a convenience typedef for std::pair<unsigned, const TargetRegisterClass*>. 
No functional change.

Part of rdar://9119939

llvm-svn: 134198
 2011-06-30 22:17:01 +00:00
Jim Grosbach b98ab91e39 Thumb1 register to register MOV instruction is predicable. 
Fix a FIXME and allow predication (in Thumb2) for the T1 register to
register MOV instructions. This allows some better codegen with
if-conversion (as seen in the test updates), plus it lays the groundwork
for pseudo-izing the tMOVCC instructions.

llvm-svn: 134197
 2011-06-30 22:10:46 +00:00
Bill Wendling f166ab447e Add comments to the FDE. 
llvm-svn: 134196
 2011-06-30 22:02:20 +00:00
John McCall db49969b32 No, actually, we do need to be able to mangle substituted template names. 
llvm-svn: 134195
 2011-06-30 21:59:02 +00:00
Bill Wendling e7fe47e53b Add more comments to the ASM output for the CIE's "moves". 
llvm-svn: 134194
 2011-06-30 21:45:12 +00:00
Jakob Stoklund Olesen 2034261972 Tweak error messages to match GCC. Should fix gcc.target/i386/pr30848.c 
llvm-svn: 134193
 2011-06-30 21:30:30 +00:00
Johnny Chen ee481783cb Add module docstring to the auto-generated lldb.py file. 
llvm-svn: 134192
 2011-06-30 21:29:50 +00:00
Bill Wendling 567a1aee85 Add comments to the ASM output to help understand the compact unwind and CIE tables. 
llvm-svn: 134191
 2011-06-30 21:25:51 +00:00
Howard Hinnant ce48a1137d _STD -> _VSTD to avoid macro clash on windows 
llvm-svn: 134190
 2011-06-30 21:18:19 +00:00
Rafael Espindola 070f96c567 Create a isFullCopy predicate. 
llvm-svn: 134189
 2011-06-30 21:15:52 +00:00
Tobias Grosser 7c5ba83015 ScheduleOpt: Prevectorize the innermost parallel loop 
Only prevectorize loops that are actually parallel and can
be vectorized. Take the innermost loop that is eligible.

llvm-svn: 134187
 2011-06-30 20:29:20 +00:00
Tobias Grosser c6699b7fe8 ScheduleOpt: Add first version of prevectorization 
We just strip-mine the innermost dimension by the vector width. This does not
take into account if this dimension is parallel nor if it is constant.

llvm-svn: 134186
 2011-06-30 20:29:13 +00:00
Hans Wennborg 77d1abef07 Fix off-by-one error in StringLiteral::getLocationOfByte. 
This fixes PR10223.

llvm-svn: 134183
 2011-06-30 20:17:41 +00:00
Rafael Espindola b10a0f223a Add r134057 back, but splice the predecessor after the successors phi 
nodes.

Original message:
Let simplify cfg simplify bb with only debug and lifetime intrinsics.

llvm-svn: 134182
 2011-06-30 20:14:24 +00:00
Tobias Grosser de68cc91cf ScheduleOpt: Use band forest to get the schedules 
isl introduced a new representation for the schedules it calculates. The new
representation uses a forest of bands and is closer to the structure of the
data as the old interface. Switch to the new interface, as it is nicer to use
and as the old interface will soon be removed from isl.

WARNING: This commit needs a version of isl that is more recent that the one
         included in CLooG. See:
	 http://polly.grosser.es/get_started.html#islTrunk
llvm-svn: 134181
 2011-06-30 20:01:02 +00:00
Tobias Grosser 080307119e Buildsystem: Add -no-rtti 
Build Polly without run time type info (rtti), as otherwise Polly cannot be
loaded into a LLVM that is built without rtti.

llvm-svn: 134180
 2011-06-30 19:50:04 +00:00
Tobias Grosser 97fb5acf48 CodeGeneration: Adapt to SCEVExpander change 
Reported-By: Sebastian Pop <sebpop@gmail.com>
llvm-svn: 134179
 2011-06-30 19:39:10 +00:00
Jim Grosbach e4750ef6ec Pseudo-ize the Thumb tTPsoft instruction. 
It's just a call to a special helper function. Get rid of the T2 variant
entirely, as it's identical to the Thumb1 version.

llvm-svn: 134178
 2011-06-30 19:38:01 +00:00
Andrew Trick efe89ad414 indvars -disable-iv-rewrite: handle cloning binary operators that cannot overflow. 
llvm-svn: 134177
 2011-06-30 19:02:17 +00:00
Johnny Chen cc76475fff Ifdef out the 'lldb::Encoding GetEncoding(uint32_t &count)' API from 
Python SWIG, since it cannot hanlde the (uint32_t &count) parameter.

llvm-svn: 134176
 2011-06-30 18:40:27 +00:00
Jim Grosbach 353da73186 Pseudo-ize the t2LDMIA_RET instruction. 
It's just a t2LDMIA_UPD instruction with extra codegen properties, so it
doesn't need the encoding information. As a side-benefit, we now correctly
recognize for instruction printing as a 'pop' instruction.

llvm-svn: 134173
 2011-06-30 18:25:42 +00:00
Jim Grosbach 417671a7b1 Pseudo-ize the Thumb tPOP_RET instruction. 
It's just a tPOP instruction with additional code-gen properties, so it
doesn't need encoding information.

llvm-svn: 134172
 2011-06-30 17:34:04 +00:00
Hans Wennborg de7a9c2415 Move test/Sema/return.cpp into test/SemaCXX/return.cpp 
llvm-svn: 134171
 2011-06-30 17:20:18 +00:00
John McCall 0b645e9030 Perform lvalue-to-rvalue conversions on both operands of ->* 
and the RHS of .*.  Noticed by Enea Zaffanella!

llvm-svn: 134170
 2011-06-30 17:15:34 +00:00
Hans Wennborg bfee88a0cf svn propdel svn:eol-style test/Sema/return.cpp 
llvm-svn: 134169
 2011-06-30 16:49:43 +00:00
Peter Collingbourne d395b9344d Replace an unreachable error path with an assert 
(SourceManager::createFileID cannot return an invalid file ID).
Also update a comment to reflect this.

llvm-svn: 134168
 2011-06-30 16:41:03 +00:00
Peter Collingbourne 400d7b9e08 Fix typo 
llvm-svn: 134167
 2011-06-30 16:40:50 +00:00