Chris Lattner
85d3d4f35d
Fix another crash found by inspection. If we have a PHI node merging
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the load multiple times, make sure the check the uses of the PHI to
ensure they are transformable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61102 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 21:24:51 +00:00
Chris Lattner
542dc1a0de
fix a crash found by inspection.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61101 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 21:04:51 +00:00
Eli Friedman
080efb8cea
Add a helper to remove a branch and DCE the condition, and use it
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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.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61100 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 20:54:32 +00:00
Dan Gohman
00dc84a2ca
Eliminate the loop that walks the critical path. Instead, just track the
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position in the critical path during the main instruction walk. This
eliminates the need for the CritialAntiDep DenseMap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61096 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 19:27:52 +00:00
Bill Wendling
43445c153c
Remove empty test.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61095 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 19:07:17 +00:00
Bill Wendling
6fa311c233
Temporarily revert r61019, r61030, and r61040. These were breaking LLVM Release
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builds.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61094 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 19:06:48 +00:00
Dan Gohman
905ff1ebc4
Preserve SourceValue information when lowering produces multiple loads from
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different offsets within the same stack slot.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61093 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 18:25:36 +00:00
Evan Cheng
09dc9c0c83
We have decided not to support inline asm where an output operand with a matching input operand with incompatible type (i.e. either one is a floating point and the other is an integer or the sizes of the types differ). SelectionDAGBuild will catch these and exit with an error.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61092 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 18:21:39 +00:00
Oscar Fuentes
8069f28a5d
CMake: Added DbgInfoPrinter.cpp to lib/Analysis/CMakeFiles.txt.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61087 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 12:25:04 +00:00
Torok Edwin
367cdff0c2
add testcase for -print-dbginfo
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61086 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 10:10:23 +00:00
Torok Edwin
6e68106a47
Add -print-dbginfo pass that prints LLVM IR with comments inserted to show
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which source/line a certain BB/instruction comes from, original variable names,
and original (unmangled) C++ name of functions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61085 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 09:09:19 +00:00
Torok Edwin
620f28095b
Add utility functions to search for DbgStopPointInst corresponding to an
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instruction or BasicBlock, and to search for DbgDeclareInst corresponding to a
variable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61084 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 09:07:36 +00:00
Torok Edwin
a70c68efc8
use different name for parameter to make it clear that we set DIDescriptor::GV
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61083 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 09:06:01 +00:00
Nick Lewycky
1447f5ca1f
Generalize support for analyzing loops to include SLE/SGE loop exit conditions
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and support for non-unit strides with signed exit conditions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61082 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 08:30:01 +00:00
Chris Lattner
5a6bb6ae78
switch some std::set/std::map to SmallPtrSet/DenseMap.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61081 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 07:34:30 +00:00
Chris Lattner
f478951b0e
fix PR3217: fully cached queries need to be verified against the
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visited set before they are used. If used, their blocks need to be
added to the visited set so that subsequent queries don't use conflicting
pointer values in the cache result blocks.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61080 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 07:10:09 +00:00
Dan Gohman
812d7506d0
Enable anti-dependence breaking by default when post-RA scheduling is enabled.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61078 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 06:21:45 +00:00
Dan Gohman
fde221fa0a
When breaking an anti-dependency, don't use a register which has seen
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one of its aliases defined. This is conservative, but tricky subreg
corner cases are outside the primary aim of this pass.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61077 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 06:20:58 +00:00
Dan Gohman
8749b61178
Add initial support for back-scheduling address computations,
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especially in the case of addresses computed from loop induction
variables.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61075 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 03:35:01 +00:00
Dan Gohman
9a65d6afc2
Remove some special-case logic in ScheduleDAGSDNodes's
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latency computation code that is no longer needed with the
new method for handling latencies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61074 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 03:31:11 +00:00
Dan Gohman
3f23744df4
Fix some register-alias-related bugs in the post-RA scheduler liveness
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computation code. Also, avoid adding output-depenency edges when both
defs are dead, which frequently happens with EFLAGS defs.
Compute Depth and Height lazily, and always in terms of edge latency
values. For the schedulers that don't care about latency, edge latencies
are set to 1.
Eliminate Cycle and CycleBound, and LatencyPriorityQueue's Latencies array.
These are all subsumed by the Depth and Height fields.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61073 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 03:25:46 +00:00
Misha Brukman
64722e5163
* Comply with HTML 4.01 Strict
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* Added code-region markings to code sections to make them stand out
* Added pre.doc_code class to llvm.css to simplify marking code regions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61072 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 03:07:49 +00:00
Misha Brukman
96e0081251
* Comply with HTML 4.01 Strict standard
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* Converted absolute links to llvm.org/docs to relative links
* Fixed spelling and s/;/:/, as needed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61071 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 02:54:22 +00:00
Dan Gohman
4ea8e85e19
Add a simple target-independent heuristic to allow targets with no
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instruction itinerary data to back-schedule loads.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61070 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 02:38:22 +00:00
Dan Gohman
c6b680eee5
Move addPred and removePred out-of-line.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61067 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 01:05:52 +00:00
Dan Gohman
ffa391272b
Make addPred and removePred return void, since the return value is not
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currently used by anything.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61066 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 01:00:55 +00:00
Dan Gohman
3ee7449f39
This getEdgeAttributes doesn't need a template argument.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61065 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 00:55:00 +00:00
Dan Gohman
c3df7a8884
Add a getSDep() access function to SUnitIterator to return the
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current SDep.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61064 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 00:51:33 +00:00
Dan Gohman
e7c1c660ad
Reorder some SDep methods. No functionality change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61063 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 00:48:53 +00:00
Dan Gohman
537add3492
SDep's operator== should compare the Latency field too.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61062 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 00:47:19 +00:00
Bill Wendling
fc953d149f
Change so that buildit won't need a parent directory with only the build scripts in them.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61061 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-16 00:42:25 +00:00
Chris Lattner
657084a8ea
add testcase for r61051
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61052 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 21:46:23 +00:00
Chris Lattner
101f44e81f
enhance heap-sra to apply to fixed sized array allocations, not just
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variable sized array allocations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61051 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 21:44:34 +00:00
Mon P Wang
93b3b928d7
Added support for splitting and scalarizing vector shifts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61050 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 21:44:00 +00:00
Chris Lattner
344b41cfbd
Use stripPointerCasts.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61047 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 21:20:32 +00:00
Chris Lattner
49b6d4ae9e
minor tweaks for formatting, allow bitcast in ValueIsOnlyUsedLocallyOrStoredToOneGlobal.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61046 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 21:08:54 +00:00
Chris Lattner
e61d0a626e
refactor some code into a new TryToOptimizeStoreOfMallocToGlobal function.
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Use GetElementPtrInst::hasAllZeroIndices where possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61045 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 21:02:25 +00:00
Chris Lattner
ca17422158
add a basic test for heap-sra
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61041 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 19:42:05 +00:00
Chris Lattner
1314f20283
Teach basicaa to use the nocapture attribute when possible. When the
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intrinsics are properly marked nocapture, the fixme should be addressed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61040 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 18:59:22 +00:00
Dan Gohman
464fc5a044
Fix printing of PseudoSourceValues in SDNode graphs.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61036 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 17:28:10 +00:00
Dan Gohman
2b00aebda9
Fix a typo in a comment.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61035 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 17:26:50 +00:00
Chris Lattner
582048d5b8
add some more notes.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61033 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 08:32:28 +00:00
Chris Lattner
8f416f3afd
Add a testcase for GCC PR 23455, which lpre handles now. Add some
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comments about why we're not getting other cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61032 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 07:49:24 +00:00
Nick Lewycky
fd7eb7252f
Update generated files after nocapture syntax change.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61031 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 07:31:07 +00:00
Nick Lewycky
382da62ec2
It turns out that "align 1" and unaligned are different. Add a bias to the
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alignment attribute such that 0 means unaligned.
This will probably require a rebuild of llvm-gcc because of the change to
Attributes.h. If you see many test failures on "make check", please rebuild
your llvm-gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61030 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 07:29:55 +00:00
Mon P Wang
d17c030276
Added support to LegalizeType for expanding the operands of scalar to vector
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and insert vector element. Modified extract vector element to extend the
result to match the expected promoted type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61029 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 06:57:02 +00:00
Chris Lattner
ef423ebdd1
gvn now hoists this load out of the hot non-call path.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61028 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 06:34:48 +00:00
Chris Lattner
2ba3b62149
Enable Load PRE. This teaches GVN to push partially redundant loads up the
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CFG when there is exactly one predecessor where the load is not available.
This is designed to not increase code size but still eliminate partially
redundant loads. This fires 1765 times on 403.gcc even though it doesn't
do critical edge splitting yet (the most common reason for it to fail).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61027 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 05:28:29 +00:00
Chris Lattner
3af23f8aba
if we have a phi translation failure of the start block,
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return *just* a clobber of the start block, not other
random stuff as well.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61026 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 04:58:29 +00:00
Chris Lattner
4807e07fff
Adjust testcase to make it more stable across visitation order changes,
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unbreaking it after r61024.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61025 91177308-0d34-0410-b5e6-96231b3b80d8
2008-12-15 04:42:00 +00:00