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Author SHA1 Message Date
Daniel Dunbar
fed44d215e Revert to using &...[0] for std::vector, apparently .data isn't generally 
available (and it isn't necessary in this case).

llvm-svn: 72425
 2009-05-26 18:00:25 +00:00
Dan Gohman
2a6606ca20 For the return type of SCEVUDivExpr, use the RHS' type instead of 
that of the LHS. It doesn't matter for correctness, but the LHS
is more likely than the RHS to be a pointer type in exotic cases,
and it's more tidy to have it return the integer type.

llvm-svn: 72424
 2009-05-26 17:44:05 +00:00
Dan Gohman
fae6edc6f2 Give SCEVNaryExpr a doxygen comment. 
llvm-svn: 72423
 2009-05-26 17:42:32 +00:00
Dan Gohman
9fe212806b In cases where a pointer value is an operand of a multiplication or 
division operation, don't attempt to use the operation's value as
the base of a getelementptr. This fixes PR4271.

llvm-svn: 72422
 2009-05-26 17:41:16 +00:00
Daniel Dunbar
33794edae7 Use .data() vs &...[0] 
llvm-svn: 72420
 2009-05-26 17:13:50 +00:00
Daniel Dunbar
1518b64ddc When trying to pass an argument on the stack, assume LLVM will do the right 
thing for non-aggregate types.
 - Otherwise we unnecessarily pin values to the stack and currently end up
   triggering a backend bug in one case.

 - This loose cooperation with LLVM to implement the ABI is pretty ugly.

 - <rdar://problem/6918722> [irgen] clang miscompile of many pointer varargs on
   x86-64

llvm-svn: 72419
 2009-05-26 16:37:37 +00:00
Daniel Dunbar
f7323f3f65 The driver/diagnostic client don't need to be on the heap. 
llvm-svn: 72418
 2009-05-26 16:15:44 +00:00
Anders Carlsson
09ac6f21c3 An Obj-C message send expression can never have a reference type. 
llvm-svn: 72417
 2009-05-26 15:22:25 +00:00
Douglas Gregor
a30d046059 Simplify printing of the statistics for types. 
llvm-svn: 72415
 2009-05-26 14:40:08 +00:00
Eli Friedman
4a951bf2ad Delete a bunch of dead code from LegalizeDAG. 
llvm-svn: 72414
 2009-05-26 08:55:52 +00:00
Eli Friedman
5cd659fd32 Fix for PR4140: Add the start of a Linux toolchain (basically, just 
barely enough to get the given usage of -print-file-name working).

llvm-svn: 72412
 2009-05-26 07:52:18 +00:00
Evan Cheng
7061ee968c Eliminate VarInfo::UsedBlocks. 
llvm-svn: 72411
 2009-05-26 06:25:46 +00:00
Anders Carlsson
00a2759ca9 Add a new CallExpr::getCallReturnType and use it in Expr::isLvalueInternal. No intended functionality change. 
llvm-svn: 72410
 2009-05-26 04:57:27 +00:00
Anders Carlsson
3b70b300b0 A block that returns a reference is an lvalue. 
llvm-svn: 72409
 2009-05-26 02:03:20 +00:00
Eli Friedman
895771aa4b Handle the edge case of a weak function with incomplete type correctly. 
Found by code inspection; I haven't seen this in real-world code.

llvm-svn: 72408
 2009-05-26 01:22:57 +00:00
Anders Carlsson
b7e69b06b5 Remove a bunch of unused constructors 
llvm-svn: 72407
 2009-05-26 01:04:47 +00:00
Anders Carlsson
3562240952 Remove AstGuard.h from Xcode project. 
llvm-svn: 72406
 2009-05-26 00:57:47 +00:00
Eli Friedman
1fd785f564 Minor build system changes to make ABITest work correctly on Linux. 
llvm-svn: 72405
 2009-05-25 22:07:09 +00:00
Eli Friedman
1cae3df3cf Some minor corrections: don't use offsetof on a bitfield, and cast 
printf operands to long to suppress warnings.

llvm-svn: 72404
 2009-05-25 21:38:01 +00:00
Chris Lattner
02274a7171 make memdep use the getModRefInfo method for stores instead of the 
low-level alias() method, allowing it to reason more aggressively
about pointers into constant memory.  PR4189

llvm-svn: 72403
 2009-05-25 21:28:56 +00:00
Nick Lewycky
47be7d135c Audit the type constructors. Previously it was possible to create [0 x void] 
or use labels as members of structures for example. Also included a couple of
whitespace fixes.

llvm-svn: 72402
 2009-05-25 21:28:11 +00:00
Eli Friedman
7ab09572c6 Extend getPreferredTypeAlign to handle _Complex double and long long 
correctly.

llvm-svn: 72401
 2009-05-25 21:27:19 +00:00
Chris Lattner
9b65031add add some late optimizations that GCC does. It thinks these are a win 
even on Core2, not just AMD processors which was a surprise to me.

llvm-svn: 72396
 2009-05-25 20:28:19 +00:00
Chris Lattner
9a3f3a5c3d fix typo 
llvm-svn: 72395
 2009-05-25 19:51:07 +00:00
Eli Friedman
cf7530ff43 PR4122: Tweak the ambiguity handling to handle (S())() correctly. I've 
left out handling for stuff like (S())++ for the moment.

llvm-svn: 72394
 2009-05-25 19:41:42 +00:00
Chris Lattner
23464b8f14 tweak non-null check to put the caret on the function, but underline the 
argument.  This avoids the argument from being silenced when the argument is
the NULL macro, which is defined in a system header.  This also makes the output
a bit nicer, e.g.:

t.c:8:3: warning: null passed to a callee which requires a non-null argument
  func1(NULL, cp2, i1);
  ^     ~~~~

vs something like:

t.c:8:10: warning: argument is null where non-null is required
  func1(NULL, cp2, i1);
        ^

llvm-svn: 72393
 2009-05-25 18:23:36 +00:00
Chris Lattner
ae5342094a merge two tests. 
llvm-svn: 72392
 2009-05-25 18:20:11 +00:00
Chris Lattner
c7516835c3 reword a warning for clarity 
llvm-svn: 72391
 2009-05-25 18:18:56 +00:00
Chris Lattner
31cadd77ef default -Wnonnull to on. 
llvm-svn: 72390
 2009-05-25 18:13:00 +00:00
Chris Lattner
fe5b4250a8 move some format group options around in the file. Move NonNull group into 
DiagnosticGroups.td, and add it as part of -Wformat (which gets it into -Wall).

llvm-svn: 72389
 2009-05-25 18:10:41 +00:00
Chris Lattner
83bd8281e5 Fix a couple of bugs: 
1. When we accept "#garbage" in asm-with-cpp mode, change the token kind
   of the # to unknown so that the preprocessor won't try to process it as
   a real #.  This fixes a crash on the attached example
2. Fix macro definition extents processing to handle #foo at the end of a
   macro to say the definition ends with the foo, not the #.

This is a follow-on fix to r72283, and rdar://6916026

llvm-svn: 72388
 2009-05-25 17:16:10 +00:00
Chris Lattner
be31b7b534 we should eventually add -march=atom and the new atom movbe instruction. 
llvm-svn: 72387
 2009-05-25 16:34:44 +00:00
Chris Lattner
7ce761d204 improve comment, no functionality change. 
llvm-svn: 72386
 2009-05-25 16:23:08 +00:00
Chris Lattner
fc39bccd2b fix this test to fail when the patch isn't applied. 
llvm-svn: 72385
 2009-05-25 16:14:52 +00:00
Nick Lewycky
4099c7c229 Fix the crash debugger to actually bisect globals once it's determined that it 
can't just eliminate all global initializers.

llvm-svn: 72378
 2009-05-25 06:29:56 +00:00
Nick Lewycky
6e090c9117 Add a bisection step on the list of instructions before doing the linear 
simplification. It's not clear to me whether this can replace the first of the
linear instruction simplification stages or not, so I left it in.

llvm-svn: 72377
 2009-05-25 05:30:00 +00:00
Dan Gohman
4d5435d46a Various comment fixes. 
llvm-svn: 72376
 2009-05-24 23:45:28 +00:00
Dan Gohman
8ca0885d69 Change ScalarEvolution::getSCEVAtScope to always return the original value 
in the case where a loop exit value cannot be computed, instead of only in
some cases while using SCEVCouldNotCompute in others. This simplifies
getSCEVAtScope's callers.

llvm-svn: 72375
 2009-05-24 23:25:42 +00:00
Eli Friedman
ac149ee60a Add a comment which should hopefully make the purpose of this method a 
bit clearer.

llvm-svn: 72374
 2009-05-24 20:32:10 +00:00
Eli Friedman
fd8b335ca4 Minor improvement to FCOPYSIGN to use BIT_CONVERT in cases where the 
corresponding integer type is legal.

llvm-svn: 72373
 2009-05-24 20:29:11 +00:00
Torok Edwin
26895b518b Move Rewriter.clear() earlier, to avoid triggerring the AssertingVH by 
one of the RecursivelyDeleteTriviallyDeadInstructions.
Add a comment explaining why the cache needs to be cleared.

llvm-svn: 72372
 2009-05-24 20:08:21 +00:00
Torok Edwin
5349cf5f4b Instead of clearing the rewriter, don't attempt to rewrite dead phi nodes. 
Also fix 80 column violation.

llvm-svn: 72371
 2009-05-24 19:36:09 +00:00
Eli Friedman
2d49c4f98d Make sure an invalid concatentaion doesn't insert whitespace before 
the RHS.  Fixes assembler-with-cpp issue reported on cfe-dev.

llvm-svn: 72370
 2009-05-24 19:25:46 +00:00
Dan Gohman
4486da5b78 When rewriting the loop exit test with the canonical induction variable, 
leave the original comparison in place if it has other uses, since the
other uses won't be dominated by the new comparison instruction.

llvm-svn: 72369
 2009-05-24 19:11:38 +00:00
Dan Gohman
3cdfe749e0 Fix this code for hosts where std::vector doesn't have .data(). 
Use &Ops[0] instead, which is safe since Ops will never be empty here.

llvm-svn: 72368
 2009-05-24 19:02:45 +00:00
Dan Gohman
fb56cf1b1d When replacing a floating-point comparison with an integer 
comparison, use takeName to give the integer comparison a name.

llvm-svn: 72367
 2009-05-24 18:09:01 +00:00
Dan Gohman
291c2e04bd Generalize SCEVExpander::visitAddRecExpr's GEP persuit, and avoid 
sending SCEVUnknowns to expandAddToGEP. This avoids the need for
expandAddToGEP to bend the rules and peek into SCEVUnknown
expressions.

Factor out the code for testing whether a SCEV can be factored by
a constant for use in a GEP index. This allows it to handle
SCEVAddRecExprs, by recursing.

As a result, SCEVExpander can now put more things in GEP indices,
so it emits fewer explicit mul instructions.

llvm-svn: 72366
 2009-05-24 18:06:31 +00:00
Dan Gohman
071156c19c When the low bits of one operand of an add are zero, that number 
of low bits of the other operand are preserved in the output.

llvm-svn: 72365
 2009-05-24 18:02:35 +00:00
Torok Edwin
d184bc209c The rewriter may hold references to instructions that are deleted because they are trivially dead. 
Fix by clearing the rewriter cache before deleting the trivially dead
instructions.
Also make InsertedExpressions use an AssertingVH to catch these
bugs easier.

llvm-svn: 72364
 2009-05-24 14:23:16 +00:00
Eli Friedman
fe87034cef Rewrite ISD::FCOPYSIGN lowering to never use i64. Not really ideal, but 
it's late, and I don't have any better ideas at the moment.  Fixes PR4257.

llvm-svn: 72363
 2009-05-24 10:21:20 +00:00