Commit Graph

5541 Commits

Author SHA1 Message Date
Chris Lattner
ab984847a8 more cleanups: remove some redundant code, and simplify some
other places.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80478 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30 05:30:55 +00:00
Chris Lattner
f9b91bb5ef eliminate the temporary SrcGEPOperands smallvector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80477 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30 05:08:50 +00:00
Chris Lattner
6e24d83167 simplify/detangle some control flow.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80476 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30 05:00:50 +00:00
Chris Lattner
ccf4b34a08 simplify and cleanup some code, remove some code that just
does constant folding of gep's: this is already handled in
a more general way.

No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80475 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-30 04:49:01 +00:00
Dan Gohman
14ef4f0a4c Remove an unnecessary Context argument.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80454 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-29 23:39:38 +00:00
Benjamin Kramer
ac6f73a2e7 Inline empty destructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80431 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-29 13:38:21 +00:00
Bill Wendling
d1e1d39b85 Fix warning about non-virtual destructor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80429 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-29 12:31:38 +00:00
Devang Patel
e4b275610a Reapply 79977.
Use MDNodes to encode debug info in llvm IR.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80406 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 23:24:31 +00:00
Andreas Neustifter
6ef116d9dc Preparation for Optimal Edge Profiling:
This implements the maximum spanning tree algorithm on CFGs according to
weights given by the ProfileEstimator. This is then used to implement Optimal
Edge Profiling.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80358 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 11:28:24 +00:00
Chris Lattner
cc0a0299d9 finish a half formed thought :)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80334 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 04:48:54 +00:00
Chris Lattner
de64894dc3 Fix PR3913, patch by Jakub Staszak!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80327 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-28 00:43:14 +00:00
Chris Lattner
199ba42cbf Implement a new optimization in the inliner: if inlining multiple
calls into a function and if the calls bring in arrays, try to merge
them together to reduce stack size.  For example, in the testcase
we'd previously end up with 4 allocas, now we end up with 2 allocas.

As described in the comments, this is not really the ideal solution
to this problem, but it is surprisingly effective.  For example, on
176.gcc, we end up eliminating 67 arrays at "gccas" time and another
24 at "llvm-ld" time.

One piece of concern that I didn't look into: at -O0 -g with
forced inlining this will almost certainly result in worse debug
info.  I think this is acceptable though given that this is a case
of "debugging optimized code", and we don't want debug info to
prevent the optimizer from doing things anyway.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80215 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 06:29:33 +00:00
Chris Lattner
29f42aebd0 unbreak the build, yay for symlinks + makefiles. :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80205 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 04:43:05 +00:00
Chris Lattner
12f0babca4 reduce header #include'age
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80204 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 04:32:07 +00:00
Chris Lattner
8f2718fbef enhance InlineFunction to be able to optionally return
a the list of static allocas that it inlined.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80203 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 04:20:52 +00:00
Chris Lattner
ec1bea0d94 smallvectorize the list of returns built by CloneAndPruneFunctionInto.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80202 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 04:02:30 +00:00
Chris Lattner
597ef10577 remove CloneTrace, which appears to be dead since 2004.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80201 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 03:56:43 +00:00
Chris Lattner
135755dae4 reduce inlining factor some stuff out to a static helper function,
and other code cleanups.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80199 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-27 03:51:50 +00:00
Owen Anderson
4eebf0bbfa Make this into a static method.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80170 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 22:55:11 +00:00
Devang Patel
8245988835 Revert 79977. It causes llvm-gcc bootstrap failures on some platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80073 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 05:01:18 +00:00
Dan Gohman
0084ace949 Remove unused variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80058 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-26 00:13:22 +00:00
Dan Gohman
1c8a23c440 Eliminate the unused Context argument on one of the ICmpInst and FCmpInst
constructors.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80049 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 23:17:54 +00:00
Dan Gohman
58cfa3b137 Rename Instruction::isIdenticalTo to Instruction::isIdenticalToWhenDefined,
and introduce a new Instruction::isIdenticalTo which tests for full
identity, including the SubclassOptionalData flags. Also, fix the
Instruction::clone implementations to preserve the SubclassOptionalData
flags. Finally, teach several optimizations how to handle
SubclassOptionalData correctly, given these changes.

This fixes the counterintuitive behavior of isIdenticalTo not comparing
the full value, and clone not returning an identical clone, as well as
some subtle bugs that could be caused by these.

Thanks to Nick Lewycky for reporting this, and for an initial patch!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80038 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 22:11:20 +00:00
Dan Gohman
76f497a351 Special-case static allocas in IndVarSimplify's loop invariant
sinking code, since they are special. If the loop preheader happens
to be the entry block of a function, don't sink static allocas
out of it. This fixes PR4775.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80010 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 17:42:10 +00:00
Owen Anderson
613bf1ef01 Comment-ify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80009 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 17:42:07 +00:00
Owen Anderson
55a0f1e41f Switch to SmallVector.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80007 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 17:35:37 +00:00
Owen Anderson
60fd8be183 Pull out this predicate loop into a helper function.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80006 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 17:26:32 +00:00
Devang Patel
2a610c7387 Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well.
This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79977 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 05:24:07 +00:00
Dale Johannesen
5fee49eff9 Allow multiple occurrences of -inline-threshold on
the command line.  This gives llvm-gcc developers
a way to control inlining (documented as "not intended
for end users").



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79966 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 01:13:58 +00:00
Owen Anderson
9db7e91fe8 Handle a corner case when extracing code regions where one of the immediate successor
of an extracted block contains a PHI using a value defined in the extracted region.

With this patch, the partial inliner now passes MultiSource/Applications.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79963 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-25 00:54:39 +00:00
Owen Anderson
9ea9fcdf65 When extracting SEME regions of code, the extractor needs to update the dominator tree for split return blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79957 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 23:32:14 +00:00
Chris Lattner
23132b188b prune the #includes in raw_ostream.h by moving a
member out of line. ftostr is not particularly speedy,
so that method is presumably not perf sensitive.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79885 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-24 03:52:50 +00:00
Benjamin Kramer
cfa6ec92e6 Kill off more cerr/cout uses and prune includes a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79852 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 11:37:21 +00:00
Daniel Dunbar
e317bcc74c Fix -Asserts warnings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79849 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 10:29:55 +00:00
Chris Lattner
103289e938 convert LoopInfo.h and GraphWriter.h to use raw_ostream
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79836 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 07:19:13 +00:00
Chris Lattner
4437ae213d eliminate uses of cerr()
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79834 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 07:05:07 +00:00
Chris Lattner
bbbfa99d3d remove a few DOUTs here and there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79832 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 06:35:02 +00:00
Chris Lattner
45cfe545ec Change Pass::print to take a raw ostream instead of std::ostream,
update all code that this affects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79830 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 06:03:38 +00:00
Chris Lattner
791102fb11 eliminate the std::ostream form of WriteAsOperand and update clients.
This also updates dominator related stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79825 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 05:17:37 +00:00
Chris Lattner
79c5d3f971 remove the std::ostream version of module and type printing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79823 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 04:52:46 +00:00
Chris Lattner
bdff548e4d eliminate the "Value" printing methods that print to a std::ostream.
This required converting a bunch of stuff off DOUT and other cleanups.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79819 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-23 04:37:46 +00:00
Dan Gohman
5078f84c82 Rename hasNoUnsignedOverflow and hasNoSignedOverflow to hasNoUnsignedWrap
and hasNoSignedWrap, for consistency with the nuw and nsw properties.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79539 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-20 17:11:38 +00:00
Dan Gohman
5e9bb73de6 Fix a few places to check if TargetData is available before using it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79493 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 23:38:22 +00:00
Dan Gohman
e4af1cf402 Make SROA and PredicateSimplifier cope if TargetData is not
available. This is very conservative for now.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79442 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 18:22:18 +00:00
Dan Gohman
8255573835 Use hasDefinitiveInitializer() instead of testing the same thing
by hand, and fix a few places that were using hasInitializer() that
appear to depend on the initializer value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79441 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 18:20:44 +00:00
Nick Lewycky
08368ce984 Fix up PHI nodes correctly in the presence of unreachable BBs, part two. Also
delete a newed pointer, and improve readability a little bit.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79411 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 07:16:57 +00:00
Nick Lewycky
3417e8f185 Be more careful when modifying PHI nodes. Patch by Andre Tavares.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79407 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 06:24:33 +00:00
Dan Gohman
107f41fad5 Fix SimplifyLibcalls and ValueTracking to check mayBeOverridden
before performing optimizations based on constant string values.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79384 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-19 00:11:12 +00:00
Dan Gohman
6874a2ae03 Fix a bug that caused globalopt to miscompile tramp3d: don't miss
unruly indices for arrays that are members of structs.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79337 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18 14:58:19 +00:00
Dan Gohman
8942f9bb9f Make TargetData optional in MemCpyOptimizer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79306 91177308-0d34-0410-b5e6-96231b3b80d8
2009-08-18 01:17:52 +00:00