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1294 Commits

Author SHA1 Message Date
Bob Wilson
aff96b2132 Rename SuccessorNumber to GetSuccessorNumber. 
llvm-svn: 96387
 2010-02-16 21:06:42 +00:00
Bob Wilson
3de492ec35 Refactor to share code to find the position of a basic block successor in the 
terminator's list of successors.

llvm-svn: 96377
 2010-02-16 19:49:17 +00:00
Duncan Sands
19d0b47b1f There are two ways of checking for a given type, for example isa<PointerType>(T) 
and T->isPointerTy().  Convert most instances of the first form to the second form.
Requested by Chris.

llvm-svn: 96344
 2010-02-16 11:11:14 +00:00
Chris Lattner
6fbfe5897c fix PR6305 by handling BlockAddress in a helper function 
called by jump threading.

llvm-svn: 96263
 2010-02-15 20:47:49 +00:00
Duncan Sands
9dff9bec31 Uniformize the names of type predicates: rather than having isFloatTy and 
isInteger, we now have isFloatTy and isIntegerTy.  Requested by Chris!

llvm-svn: 96223
 2010-02-15 16:12:20 +00:00
Chris Lattner
5e7f705934 Speed up codegen prepare from 3.58s to 0.488s. 
llvm-svn: 96081
 2010-02-13 05:01:14 +00:00
Chris Lattner
72c4dce884 PHINode::getBasicBlockIndex is O(n) in the number of inputs 
to a PHI, avoid it in the common case where the BB occurs
in the same index for multiple phis.  This speeds up CGP on
an insane testcase from 8.35 to 3.58s.

llvm-svn: 96080
 2010-02-13 04:24:19 +00:00
Chris Lattner
b0ebb65ab0 iterate over preds using PHI information when available instead of 
using pred_begin/end.  It is much faster.

llvm-svn: 96079
 2010-02-13 04:15:26 +00:00
Jakob Stoklund Olesen
916f48a054 Teach SimplifyCFG about magic pointer constants. 
Weird code sometimes uses pointer constants other than null. This patch
teaches SimplifyCFG to build switch instructions in those cases.

Code like this:

void f(const char *x) {
  if (!x)
    puts("null");
  else if ((uintptr_t)x == 1)
    puts("one");
  else if (x == (char*)2 || x == (char*)3)
    puts("two");
  else if ((intptr_t)x == 4)
    puts("four");
  else
    puts(x);
}

Now becomes a switch:

define void @f(i8* %x) nounwind ssp {
entry:
  %magicptr23 = ptrtoint i8* %x to i64            ; <i64> [#uses=1]
  switch i64 %magicptr23, label %if.else16 [
    i64 0, label %if.then
    i64 1, label %if.then2
    i64 2, label %if.then9
    i64 3, label %if.then9
    i64 4, label %if.then14
  ]

Note that LLVM's own DenseMap uses magic pointers.

llvm-svn: 95439
 2010-02-05 22:03:18 +00:00
Dan Gohman
8abb67df63 Use a SmallSetVector instead of a SetVector; this code showed up as a 
malloc caller in a profile.

llvm-svn: 95407
 2010-02-05 19:20:15 +00:00
Bob Wilson
f65ba356e1 Fix pr6198 by moving the isSized() check to an outer conditional. 
The testcase from pr6198 does not crash for me -- I don't know what's up with
that -- so I'm not adding it to the tests.

llvm-svn: 94984
 2010-02-01 17:41:44 +00:00
Bob Wilson
56600a15ad Check alignment of loads when deciding whether it is safe to execute them 
unconditionally.  Besides checking the offset, also check that the underlying
object is aligned as much as the load itself.

llvm-svn: 94875
 2010-01-30 04:42:39 +00:00
Bob Wilson
34e10c2218 Use uint64_t instead of unsigned for offsets and sizes. 
llvm-svn: 94835
 2010-01-29 20:34:28 +00:00
Bob Wilson
7c42b9d51e Improve isSafeToLoadUnconditionally to recognize that GEPs with constant 
indices are safe if the result is known to be within the bounds of the
underlying object.

llvm-svn: 94829
 2010-01-29 19:19:08 +00:00
Victor Hernandez
006b53f199 mem2reg erases the dbg.declare intrinsics that it converts to dbg.val intrinsics 
llvm-svn: 94763
 2010-01-29 00:01:35 +00:00
Bob Wilson
7577e948e4 Avoid creating redundant PHIs in SSAUpdater::GetValueInMiddleOfBlock. 
This was already being done in SSAUpdater::GetValueAtEndOfBlock so I've
just changed SSAUpdater to check for existing PHIs in both places.

llvm-svn: 94690
 2010-01-27 22:01:02 +00:00
Benjamin Kramer
1266d46d32 Don't bother with sprintf, just pass the Twine through. 
llvm-svn: 94684
 2010-01-27 19:58:47 +00:00
Chris Lattner
65f4733b77 some cleanups. 
llvm-svn: 94649
 2010-01-27 02:12:20 +00:00
Chris Lattner
711e701f1c no need to check for null 
llvm-svn: 94648
 2010-01-27 02:04:20 +00:00
Victor Hernandez
477d9274bb When converting dbg.declare to dbg.value, attach promoted store's debug metadata to dbg.value 
llvm-svn: 94634
 2010-01-27 00:44:36 +00:00
Victor Hernandez
2b17e2a452 Avoid extra calls to MD->getNumOperands() 
llvm-svn: 94618
 2010-01-26 23:29:09 +00:00
Victor Hernandez
9ecd2f039f Switch AllocaDbgDeclares to SmallVector and don't leak DIFactory 
llvm-svn: 94567
 2010-01-26 18:57:53 +00:00
Victor Hernandez
cd94410152 In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store. 
llvm-svn: 94493
 2010-01-26 02:42:15 +00:00
Victor Hernandez
8a588e1444 Revert r94260 until findDbgDeclare() is made more efficient 
llvm-svn: 94432
 2010-01-25 17:52:13 +00:00
Chris Lattner
823aed16f9 make -fno-rtti the default unless a directory builds with REQUIRES_RTTI. 
llvm-svn: 94378
 2010-01-24 20:43:08 +00:00
Victor Hernandez
5006e43faf In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store 
llvm-svn: 94260
 2010-01-23 00:17:34 +00:00
Victor Hernandez
5f8c8c034a Keep ignoring pointer-to-pointer bitcasts 
llvm-svn: 94194
 2010-01-22 19:05:05 +00:00
Chris Lattner
7ba0661f27 Stop building RTTI information for *most* llvm libraries. Notable 
missing ones are libsupport, libsystem and libvmcore.  libvmcore is
currently blocked on bugpoint, which uses EH.  Once it stops using
EH, we can switch it off.

This #if 0's out 3 unit tests, because gtest requires RTTI information.
Suggestions welcome on how to fix this.

llvm-svn: 94164
 2010-01-22 06:49:46 +00:00
Victor Hernandez
7b151e9f06 No need to look through bitcasts for DbgInfoIntrinsic 
llvm-svn: 94114
 2010-01-21 23:09:12 +00:00
Victor Hernandez
ae4d949721 DbgInfoIntrinsic no longer appear in an instruction's use list 
llvm-svn: 94113
 2010-01-21 23:08:36 +00:00
Victor Hernandez
1df65186d1 DbgInfoIntrinsics no longer appear in an instruction's use list; so clean up looking for them in use iterations and remove OnlyUsedByDbgInfoIntrinsics() 
llvm-svn: 94111
 2010-01-21 23:05:53 +00:00
Chris Lattner
24716b6c63 It turns out that this #include is needed because otherwise 
ValueMapper.cpp ends up calling an out of line 
__ZNK4llvm12PATypeHolder3getEv, which is a template and llvm-config
determines arbitrarily to use the one in libipo.  This sucks, but
keeping the #include is a reasonable workaround.

llvm-svn: 94103
 2010-01-21 21:29:25 +00:00
Chris Lattner
9889b4be04 unbreak the build, apparently without this transformutils starts depending on libipa? 
llvm-svn: 94102
 2010-01-21 21:20:51 +00:00
Chris Lattner
e39837d5ee tidy up 
llvm-svn: 94101
 2010-01-21 21:05:54 +00:00
Victor Hernandez
a9ad174b49 Don't need to include IntrinsicInst.h any more 
llvm-svn: 94092
 2010-01-21 19:33:59 +00:00
Victor Hernandez
d089f4e10b No need to map NULL operands of metadata 
llvm-svn: 94091
 2010-01-21 19:26:20 +00:00
Victor Hernandez
f2462407ee Switch Elts from vector to SmallVector 
llvm-svn: 93989
 2010-01-20 06:56:16 +00:00
Victor Hernandez
5fa88d4e30 Map operands of all function-local metadata, not just metadata passed to llvm.dbg.declare intrinsics 
llvm-svn: 93979
 2010-01-20 05:49:59 +00:00
Devang Patel
696cb8d410 While mapping llvm.dbg.declare intrinsic manually map its operand, if possible, 
because it points to an alloca instruction through metadata.

llvm-svn: 93757
 2010-01-18 19:52:14 +00:00
Bob Wilson
e0da4b6cff Fix a comment typo. 
llvm-svn: 93560
 2010-01-15 21:55:02 +00:00
Chris Lattner
7c743f2c74 add a helper function. 
llvm-svn: 93251
 2010-01-12 19:40:54 +00:00
Julien Lerouge
321098ebec Fix nondeterministic behavior. 
llvm-svn: 93093
 2010-01-10 01:07:22 +00:00
Julien Lerouge
f50a3f19da Fix nondeterministic behavior. 
llvm-svn: 93038
 2010-01-09 01:06:49 +00:00
Benjamin Kramer
a81a6dff0d Convert a ton of simple integer type equality tests to the new predicate. 
llvm-svn: 92760
 2010-01-05 20:07:06 +00:00
Dan Gohman
c3c031bb37 Nick Lewycky pointed out that this code makes changes unconditionally. 
llvm-svn: 92739
 2010-01-05 17:50:58 +00:00
Dan Gohman
28943873e6 Use do+while instead of while for loops which obviously have a 
non-zero trip count. Use SmallVector's pop_back_val().

llvm-svn: 92734
 2010-01-05 16:27:25 +00:00
Dan Gohman
cb99fe9839 Make RecursivelyDeleteTriviallyDeadInstructions, 
RecursivelyDeleteDeadPHINode, and DeleteDeadPHIs return a flag
indicating whether they made any changes.

llvm-svn: 92732
 2010-01-05 15:45:31 +00:00
Benjamin Kramer
ccce8bae14 Avoid going through the LLVMContext for type equality where it's safe to dereference the type pointer. 
llvm-svn: 92726
 2010-01-05 13:12:22 +00:00
David Greene
084b0dde9d Change errs() to dbgs(). 
llvm-svn: 92606
 2010-01-05 01:26:57 +00:00
David Greene
76a4e852f8 Change errs() to dbgs(). 
llvm-svn: 92605
 2010-01-05 01:26:54 +00:00