Commit Graph

46295 Commits

Author SHA1 Message Date
Dan Gohman
20900cae35 Simplify trivial cast-of-cast SCEVs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69809 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 16:20:48 +00:00
Dan Gohman
aabb04f527 SCEVExpander's InsertCastOfTo knows how to move existing cast
instructions in order to avoid inserting new ones. However, if
the cast instruction is the SCEVExpander's InsertPt, this
causes subsequently emitted instructions to be inserted near
the cast, and not at the location of the original insert point.
Fix this by adjusting the insert point in such cases.
This fixes PR4009.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69808 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 16:11:16 +00:00
Dan Gohman
6cdc727f2d Use BasicBlock::iterator instead of Instruction* for insert points,
to better handle inserting instructions at the end of a block.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69807 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 16:05:50 +00:00
Dan Gohman
b928c57397 Make SCEVExpanders private methods private, instead of protected.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69806 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 16:00:36 +00:00
Dan Gohman
d50330cd02 Use CloneModule's ValueMap in more places, instead of looking
up functions by name.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69805 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 15:57:18 +00:00
Dan Gohman
e370c80d31 ISD::ADD_PARTS is gone; use ISD::SMUL_LOHI as an example instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69804 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 15:55:31 +00:00
Sanjiv Gupta
dd92dba644 Make the function begin label start after ther data pointer.
The address of data frame for function can be obtained by subtracting 2 from the function begin label.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69801 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 12:02:36 +00:00
Duncan Sands
4a0adb7686 These tests are x86 specific.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69798 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 10:39:51 +00:00
Owen Anderson
7db2789251 Real fix for PR3549, by using caching for predecessor counts in addition to the predecessors themselves. This halves the time
to optimize the testcase, beyond what my previous patch did.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69792 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 08:50:12 +00:00
Owen Anderson
ddcb3415cb Add caching of predecessor counts as well as predecessors themselves.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69791 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 08:46:33 +00:00
Owen Anderson
68fbd735f1 Use PredIteratorCache in LCSSA, which gives a 37% overall speedup on the testcase from PR3549. More improvements to come.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69788 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 08:09:13 +00:00
Owen Anderson
747972914a Fix for PR3946, in which SmallVector could behave strangely in corner cases.
Patch by Peter Johnson.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69785 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-22 07:16:54 +00:00
Chris Lattner
41b1a489f5 use predicate instead of hand-rolled loop
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69752 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 23:37:18 +00:00
Dan Gohman
f8a8be86e3 De-pImpl-ify ScalarEvolution. The pImpl pattern doesn't provide much
practical benefit in the case of ScalarEvolution, and it's otherwise
a nuisance.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69749 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 23:15:49 +00:00
Evan Cheng
5b69ebac85 It has finally happened. Spiller is now using live interval info.
This fixes a very subtle bug. vr defined by an implicit_def is allowed overlap with any register since it doesn't actually modify anything. However, if it's used as a two-address use, its live range can be extended and it can be spilled. The spiller must take care not to emit a reload for the vn number that's defined by the implicit_def. This is both a correctness and performance issue.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69743 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 22:46:52 +00:00
Dan Gohman
578ccf81e5 When turning (ashr(shl(x, n), n)) into sext(trunc(x)), the width of the
type to truncate to should be the number of bits of the value that are
preserved, not the number that are clobbered with sign-extension.
This fixes regressions in ldecod.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69704 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 20:18:36 +00:00
Mikhail Glushenkov
4558f481b8 Support --with-llvmgccdir and friends in llvmc, take 2.
Should now work when building with objdir != srcdir and when llvm-gcc is not
available.

Thanks to Duncan Sands for testing and advice!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69700 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 19:46:10 +00:00
Devang Patel
1d85a1f00b Test case for revision 69683.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69684 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 17:21:01 +00:00
Chris Lattner
33e24adc3b fix a crash on a pointless but valid zero-length memset, rdar://6808691
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69680 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 16:52:12 +00:00
Anton Korobeynikov
83985d706b Silence warnings.
Patch by Jay Foad!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69679 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 16:04:56 +00:00
Anton Korobeynikov
0957fcbe0c Drop obsolete reference to __eprintf.
Patch by Jay Foad!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69678 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 16:04:41 +00:00
Anton Korobeynikov
8d8fbf204d 'The "or die" is intended to catch the case where nm returned a
non-zero exit status, so nm will already have printed some error
messages.'

Patch by Jay Foad!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69677 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 16:04:14 +00:00
Duncan Sands
005e7984cc Get rid of what looks like a copy-and-pasted typo.
Spotted by gcc-4.5.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69673 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 09:44:39 +00:00
Rafael Espindola
7daa13c2a4 TLS_addr64 and TLS_addr32 define RDI and EAX. They don't use them.
This fixes PR4002.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69672 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 08:22:09 +00:00
Sanjiv Gupta
e16178b75f Handle direct aggregate type arguments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69665 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 05:54:51 +00:00
Dan Gohman
4ee29af754 Teach ScalarEvolution how to recognize zext-inreg and sext-inreg,
as they appear in LLVM IR. This isn't particularly interesting
on its own; this is just setting up some infrastructure.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69655 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 02:26:00 +00:00
Dan Gohman
59d0704c8f This FIXME is fixed, now that SCEV understands pointers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69651 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 01:41:18 +00:00
Dan Gohman
84923602fd Factor out a common base class from SCEVTruncateExpr, SCEVZeroExtendExpr,
and SCEVSignExtendExpr.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69649 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 01:25:57 +00:00
Dan Gohman
a682430653 Usage getAnalysisToUpdate for TargetData, per PR760.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69645 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 01:11:19 +00:00
Dan Gohman
af79fb5f47 Introduce encapsulation for ScalarEvolution's TargetData object, and refactor
the code to minimize dependencies on TargetData.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69644 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 01:07:12 +00:00
Dan Gohman
fb17fd2cdf Move some assertion checks so they can do more complete checking.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69643 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 00:55:22 +00:00
Dan Gohman
b7ef72963b Convert ScalarEvolution to use raw_ostream instead of OStream.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69640 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 00:47:46 +00:00
Devang Patel
3e3702d00b Fix Visual Studio 2008 build failure.
Patch by Marius Wachtler



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69637 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-21 00:08:56 +00:00
Dan Gohman
70bc17dbf5 Make X86's copyRegToReg able to handle copies to and from subclasses.
This makes the extra copyRegToReg calls in ScheduleDAGSDNodesEmit.cpp
unnecessary. Derived from a patch by Jakob Stoklund Olesen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69635 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 22:54:34 +00:00
Dan Gohman
bd209ab9bc Simplify this code. getConstant knows how to make
broadcasted vector constants.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69634 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 22:51:43 +00:00
Evan Cheng
ea84e93a42 No, we are not avoiding -O3, just -fstrict-aliasing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69633 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 22:49:59 +00:00
Dale Johannesen
23300aa3e3 Adjust loop size estimate for full unrolling;
GEP's don't usually become instructions.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69631 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 22:19:33 +00:00
Evan Cheng
b306e38a2e One Mac OS X, just build with -O3 but without -fstrict-aliasing (which is kinda broken).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69630 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 22:16:40 +00:00
Daniel Dunbar
a7f2a9e69f Make Unix.h:MakeErrMsg separate the prefix and errno string, so we get:
clang: error: unable to make temporary file: /etc/cc: can't make
  unique filename: Permission denied

instead of 

  clang: error: unable to make temporary file: /etc/cc: can't make
  unique filenamePermission denied

for example.

Also, audited the uses of MakeErrMsg to make the prefix strings
consistent (not end with newline/punctuation/space/": ").


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69626 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 20:50:13 +00:00
Daniel Dunbar
75397f4092 Remove unused variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69624 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 20:34:38 +00:00
Bob Wilson
998e125a87 Move duplicated AddLiveIn function from X86 and ARM backends to be a method
in the MachineFunction class, renaming it to addLiveIn for consistency with
the same method in MachineBasicBlock.  Thanks for Anton for suggesting this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69615 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 18:36:57 +00:00
Devang Patel
91b477d2fa Match C backend only if it explicitly requested.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69613 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 18:07:22 +00:00
Tanya Lattner
911c60630f Remove clang since its conditionally there already.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69610 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 17:48:16 +00:00
Bob Wilson
c885165e66 Revise my previous change 68996 as suggested by Duncan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69607 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 17:27:09 +00:00
Evan Cheng
c4f718a3a7 - Remove an arbitrary spill weight tweak that should not have been there.
- Find more reloads from SS.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69606 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 17:23:48 +00:00
Sanjiv Gupta
2bdf490d71 Emit the auto variables of a function into a different section than parameters.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69605 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 16:59:35 +00:00
Dan Gohman
f30a8641d1 It's not necessary for PrintModulePass to flush the output streams
now that errs() is properly non-buffered.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69602 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 16:26:25 +00:00
Dan Gohman
51747a7e51 Use .empty() instead of .size().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69599 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 16:19:02 +00:00
Dan Gohman
ba0941fbe0 Don't discard an AssemblyAnnotationWriter when writing GlobalValues,
which include Functions, where it can be quite useful to use an
AssemblyAnnotationWriter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69598 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 16:10:33 +00:00
Duncan Sands
c3bbf579ae These bitfields were being miscompiled on some
64 bit platforms when building with optimization.
So replace them by a hand-coded implementation.
This fixes PR3822.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@69597 91177308-0d34-0410-b5e6-96231b3b80d8
2009-04-20 16:03:21 +00:00