Commit Graph

922 Commits

Author SHA1 Message Date
Chris Lattner 4caf5eb70c Fix PR2929 by making bugpoint/code extract propagate the nothrow
bit from the original function to the cloned one.

llvm-svn: 61194
2008-12-18 05:52:56 +00:00
Chris Lattner c1c6404bba make instnamer name unnamed blocks as well as instructions and args.
llvm-svn: 61175
2008-12-18 00:33:11 +00:00
Eli Friedman cb61afb546 Add a helper to remove a branch and DCE the condition, and use it
consistently for deleting branches.  In addition to being slightly 
more readable, this makes SimplifyCFG a bit better 
about cleaning up after itself when it makes conditions unused.

llvm-svn: 61100
2008-12-16 20:54:32 +00:00
Misha Brukman 234b44add2 Fix spelling.
llvm-svn: 60971
2008-12-13 05:21:37 +00:00
Chris Lattner f50d7f76c6 fix a bug I introduced in simplifycfg handling single entry phi
nodes. FoldSingleEntryPHINodes deletes the PHI, so there is no
need to delete it afterward.

llvm-svn: 60653
2008-12-07 07:22:45 +00:00
Chris Lattner dc3f6f2c12 Factor some code into a new FoldSingleEntryPHINodes method.
llvm-svn: 60501
2008-12-03 19:44:02 +00:00
Chris Lattner 37e0136fef third time is the charm.
llvm-svn: 60469
2008-12-03 07:45:15 +00:00
Chris Lattner c04a1ffa9a fix assertion.
llvm-svn: 60468
2008-12-03 07:43:05 +00:00
Chris Lattner 7eb270ed03 Rename DeleteBlockIfDead to DeleteDeadBlock and make it
unconditionally delete the block.  All likely clients will
do the checking anyway.

llvm-svn: 60464
2008-12-03 06:40:52 +00:00
Chris Lattner bcc904a67c Factor some code out of SimplifyCFG, forming a new
DeleteBlockIfDead method.

llvm-svn: 60463
2008-12-03 06:37:44 +00:00
Chris Lattner e9f6c355bf rewrite RecursivelyDeleteTriviallyDeadInstructions to use a more efficient
formulation that doesn't require set lookups or scanning a set.

llvm-svn: 60203
2008-11-28 01:20:46 +00:00
Chris Lattner d4b5ba615e remove some weirdness that came from the LSR code that has
nothing to do with dead instruction elimination.  No tests in
dejagnu depend on this, so I don't know what it was needed for.

llvm-svn: 60202
2008-11-28 00:58:15 +00:00
Chris Lattner 8e84c129ce delete ErasePossiblyDeadInstructionTree, replacing uses of it with
RecursivelyDeleteTriviallyDeadInstructions.

llvm-svn: 60196
2008-11-27 23:25:44 +00:00
Chris Lattner a1bbdff933 enhance RecursivelyDeleteTriviallyDeadInstructions to make
PHIs dead if they are single-value.

llvm-svn: 60194
2008-11-27 23:18:11 +00:00
Chris Lattner 1cb4f72706 Enhance RecursivelyDeleteTriviallyDeadInstructions to optionally
return a list of deleted instructions.

llvm-svn: 60193
2008-11-27 23:14:34 +00:00
Chris Lattner c6c481cdfc remove doConstantPropagation and dceInstruction, they are just
wrappers around the interesting code and use an obscure iterator
abstraction that dates back many many years.

Move EraseDeadInstructions to Transforms/Utils and name it
RecursivelyDeleteTriviallyDeadInstructions.

llvm-svn: 60191
2008-11-27 22:57:53 +00:00
Chris Lattner e0d019def6 switch InstCombine::visitLoadInst to use
FindAvailableLoadedValue

llvm-svn: 60169
2008-11-27 08:56:30 +00:00
Chris Lattner c6ae56d23f enhance FindAvailableLoadedValue to make use of AliasAnalysis
if it has it.

llvm-svn: 60167
2008-11-27 08:18:12 +00:00
Chris Lattner 72f16e70f0 move FindAvailableLoadedValue from JumpThreading to Transforms/Utils.
llvm-svn: 60166
2008-11-27 08:10:05 +00:00
Chris Lattner d6204bed3d simplify this code a bit.
llvm-svn: 60164
2008-11-27 07:54:38 +00:00
Chris Lattner 99d6809ac1 move MergeBasicBlockIntoOnlyPred to Transforms/Utils.
llvm-svn: 60162
2008-11-27 07:43:12 +00:00
Chris Lattner dd7083452f reapply Sanjiv's patch to genericize memcpy/memset/memmove to take an
arbitrary integer width for the count.

llvm-svn: 59823
2008-11-21 16:42:48 +00:00
Bill Wendling 4bce2bff88 Revert r59802. It was breaking the build of llvm-gcc:
g++ -m32 -c -g -DIN_GCC -W -Wall -Wwrite-strings -Wmissing-format-attribute -fno-common -mdynamic-no-pic -DHAVE_CONFIG_H -Wno-unused -DTARGET_NAME=\"i386-apple-darwin9.5.0\" -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include -DENABLE_LLVM -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/../llvm.src/include  -D_DEBUG  -D_GNU_SOURCE -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS   -I. -I. -I../../llvm-gcc.src/gcc -I../../llvm-gcc.src/gcc/. -I../../llvm-gcc.src/gcc/../include -I./../intl -I../../llvm-gcc.src/gcc/../libcpp/include  -I../../llvm-gcc.src/gcc/../libdecnumber -I../libdecnumber -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.obj/include -I/Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvm.src/include ../../llvm-gcc.src/gcc/llvm-types.cpp -o llvm-types.o
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemCpy(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1496: error: 'memcpy_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemMove(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1512: error: 'memmove_i64' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp: In member function 'void TreeToLLVM::EmitMemSet(llvm::Value*, llvm::Value*, llvm::Value*, unsigned int)':
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i32' is not a member of 'llvm::Intrinsic'
../../llvm-gcc.src/gcc/llvm-convert.cpp:1528: error: 'memset_i64' is not a member of 'llvm::Intrinsic'
make[3]: *** [llvm-convert.o] Error 1
make[3]: *** Waiting for unfinished jobs....
rm fsf-funding.pod gcov.pod gfdl.pod cpp.pod gpl.pod gcc.pod
make[2]: *** [all-stage1-gcc] Error 2
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2

llvm-svn: 59809
2008-11-21 09:09:41 +00:00
Sanjiv Gupta 09a203765a Make mem[cpy,move,set] intrinsics overloaded.
llvm-svn: 59802
2008-11-21 07:49:09 +00:00
Devang Patel 38642e598e Don't forget arguments!
llvm-svn: 59745
2008-11-20 19:50:17 +00:00
Oscar Fuentes 4fb443f81b CMake: Removed source file.
llvm-svn: 59662
2008-11-19 19:32:19 +00:00
Devang Patel 79303b2572 Do not use separate utility to walk all instructions and remove dead dbg intrinsics. Let instcombiner do this job.
llvm-svn: 59659
2008-11-19 19:01:37 +00:00
Devang Patel a13f1f38fa Initialize MallocFunc and FreeFunc properly.
llvm-svn: 59538
2008-11-18 18:43:07 +00:00
Devang Patel b63c74730c Let AnalyzeAlloca() remove debug intrinsics.
llvm-svn: 59454
2008-11-17 18:37:53 +00:00
Oscar Fuentes 1b504d5372 CMake: Remove removed source file.
llvm-svn: 59098
2008-11-12 00:14:12 +00:00
Devang Patel 4f02a0b740 Remove
llvm-svn: 59093
2008-11-11 23:58:15 +00:00
Devang Patel bf0835706c Undo previous check-in.
llvm-svn: 59092
2008-11-11 23:57:33 +00:00
Oscar Fuentes 2353ef3e91 CMake: Updated list of source files for lib/Transforms/Utils.
llvm-svn: 59077
2008-11-11 19:51:36 +00:00
Devang Patel 6096f26bd4 Add utility pass to remove dbg info.
llvm-svn: 59068
2008-11-11 19:33:39 +00:00
Cedric Venet 8cb2e28e43 Update CMakeLists.txt
llvm-svn: 59039
2008-11-11 09:55:48 +00:00
Devang Patel dc6699e82f Add utility routines to remove dead debug info.
llvm-svn: 59011
2008-11-11 00:53:02 +00:00
Daniel Dunbar 2b9dce2669 Rework r58829, allowing removal of dbg info intrinsics during alloca
promotion.
 - Eliminate uses after free and simplify tests.

Devang: Please check that this is still doing what you intended.
llvm-svn: 58887
2008-11-08 04:12:17 +00:00
Bill Wendling b9656df4ac BCUI + 1 doesn't work. Use next instead.
llvm-svn: 58830
2008-11-07 01:59:41 +00:00
Devang Patel b8e0d59ceb Handle (delete) dbg intrinsics while promoting alloca.
llvm-svn: 58826
2008-11-07 01:30:07 +00:00
Devang Patel 5a5ab730e0 InstructionNamer preserves everything.
llvm-svn: 58787
2008-11-06 01:00:16 +00:00
Devang Patel 7a848b0ee3 Check Attribute::NoInline.
llvm-svn: 58742
2008-11-05 01:37:05 +00:00
Devang Patel f33f8a8606 Fix unused variable warnings.
llvm-svn: 58651
2008-11-03 23:14:09 +00:00
Daniel Dunbar a1c4fcfc29 Fix warning.
llvm-svn: 58486
2008-10-31 01:50:01 +00:00
Daniel Dunbar 3933e66a89 Add InlineCost class for represent the estimated cost of inlining a
function.
 - This explicitly models the costs for functions which should
   "always" or "never" be inlined. This fixes bugs where such costs
   were not previously respected.

llvm-svn: 58450
2008-10-30 19:26:59 +00:00
Chris Lattner 0934c0f35b Fix PR2967 by not deleting volatile load/stores that occur before unreachable.
I don't really see this as being needed, but there is little harm from doing
it.

llvm-svn: 58385
2008-10-29 17:46:26 +00:00
Daniel Dunbar cc20455346 Assorted comment/naming fixes, 80-col violations, and reindentation.
- No functionality change.

llvm-svn: 58352
2008-10-28 23:24:26 +00:00
Torok Edwin ca97b42ef7 export an ID for the instructionNamer, allowing analysis/transformation passes
that need it to require it by ID.

llvm-svn: 58238
2008-10-27 10:16:27 +00:00
Chris Lattner 59b5691388 Rewrite all the 'PromoteLocallyUsedAlloca[s]' logic. With the power of
LargeBlockInfo, we can now dramatically simplify their implementation
and speed them up at the same time.  Now the code has time proportional
to the number of uses of the alloca, not the size of the block.

This also eliminates code that tried to batch up different allocas which
are used in the same blocks, and eliminates the 'retry list' logic which
was baroque and no unneccesary.  In addition to being a speedup for crazy
cases, this is also a nice cleanup:

PromoteMemoryToRegister.cpp |  270 +++++++++++++++-----------------------------
 1 file changed, 96 insertions(+), 174 deletions(-)

llvm-svn: 58229
2008-10-27 07:05:53 +00:00
Chris Lattner f594ecc453 Add a new LargeBlockInfo helper, which is just a wrapper around
a trivial dense map.  Use this in RewriteSingleStoreAlloca to
avoid aggressively rescanning blocks over and over again.  This
fixes PR2925, speeding up mem2reg on the testcase in that bug
from 4.56s to 0.02s in a debug build on my machine.

llvm-svn: 58227
2008-10-27 06:05:26 +00:00
Daniel Dunbar 7f39e2d85a Change create*Pass factory functions to return Pass* instead of
LoopPass*.
 - Although less precise, this means they can be used in clients
   without RTTI (who would otherwise need to include LoopPass.h, which
   eventually includes things using dynamic_cast). This was the
   simplest solution that presented itself, but I am happy to use a
   better one if available.

llvm-svn: 58010
2008-10-22 23:32:42 +00:00