Chris Lattner
3161ae1867
Enhance DSE to handle the variable index case in PR8657.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120498 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:43:23 +00:00
Jim Grosbach
d309b413a5
Trailing whitespace.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120497 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:29:24 +00:00
Michael J. Spencer
a42cf73c77
Support/PathV2: Implement reverse iteration and parent_path.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120496 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:28:07 +00:00
Michael J. Spencer
63c133b67d
Support/ADT/StringRef: Add find_last_of.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120495 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:27:35 +00:00
Jason W Kim
61db62990b
Thanks to JimG for catching this!
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120494 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:27:18 +00:00
Chris Lattner
9fd9f9fd57
remove fixme comment too.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120493 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:25:01 +00:00
Chris Lattner
7fd16cef85
check in *all* files. This is now handled by my previous DSE commit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120492 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:23:59 +00:00
Andrew Trick
18c57a8a09
Coding style. No significant functionality. Abandon linear scan style
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in favor of the widespread llvm style. Capitalize variables and add
newlines for visual parsing. Rename variables for readability.
And other cleanup.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120490 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:18:47 +00:00
Bill Wendling
2cbc9fe837
Inline classes that were used in only one place.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120488 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:16:25 +00:00
Chris Lattner
a04096580a
teach DSE to use GetPointerBaseWithConstantOffset to analyze
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may-aliasing stores that partially overlap with different base
pointers. This implements PR6043 and the non-variable part of
PR8657
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120485 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 23:05:20 +00:00
Bill Wendling
1fd374e9c1
* Add support for encoding t_addrmode_s2 and t_addrmode_s1. They are the same as
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t_addrmode_s4, but with a different scaling factor.
* Encode the Thumb1 load and store instructions. This involved a bit of
refactoring (hi, Chris! :-). Some of the patterns became dead afterwards and
were removed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120482 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 22:57:21 +00:00
Owen Anderson
80dd3e0612
Simplify the encoding of reg+/-imm12 values that allow PC-relative encoding. This allows the
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Thumb2 encoding to share code with the ARM encoding, which gets use fixup support for free.
It also allows us to fold away at least one codegen-only pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120481 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 22:45:47 +00:00
Jim Grosbach
97dd28fb89
Fix handling of ARM negative pc-relative fixups for loads and stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120480 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 22:40:36 +00:00
Chris Lattner
ed58a6f96f
move GetPointerBaseWithConstantOffset out of GVN into ValueTracking.h
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120476 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 22:25:26 +00:00
Chris Lattner
fcf8d7c73d
remove a fixed fixme
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120474 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 22:18:11 +00:00
Chris Lattner
7c80c15a8b
Make DeleteDeadInstruction be a static function, move some code around.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120471 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 21:58:14 +00:00
Eric Christopher
c563ded794
Move X86InstrFPStack.td over to PseudoI as well.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120470 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 21:57:32 +00:00
Chris Lattner
d8d35316de
switch RemoveAccessedObjects to use AliasAnalysis::Location to simplify
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the code. We now get accurate sizes on Loads, though it surely doesn't
matter in practice.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120469 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 21:47:58 +00:00
Chris Lattner
42cb684f8d
two improvements to RemoveAccessedObjects:
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1. if the underlying pointer passed in can be resolved
to any argument or alloca, then we don't need to scan.
Previously we would only avoid the scan if the alloca
or byval was actually considered dead.
2. The dead store processing code is itself completely
dead and didn't handle volatile stores right anyway,
so delete it. This allows simplifying the interface
to RemoveAccessedObjects.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120467 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 21:38:30 +00:00
Eric Christopher
6bac79deb3
Migrate X86InstrControl.td to use PseudoI and fix a couple of 80-col violations
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while I'm in there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120466 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 21:37:36 +00:00
Chris Lattner
5fb0fb397c
remove the "undead" terminology, which is nonstandard and never
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made sense to me. We now have a set of dead stack objects, and
they become live when loaded. Fix a theoretical problem where
we'd pass in the wrong pointer to the alias query.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120465 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 21:32:12 +00:00
Chris Lattner
86dc6c08cf
move call handling in handleEndBlock up a bit, and simplify it.
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If the call might read all the allocas, stop scanning early.
Convert a vector to smallvector, shrink SmallPtrSet to 16 instead
of 64 to avoid crazy linear scans.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120463 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 21:18:46 +00:00
Ted Kremenek
75627d3d2e
Performance optimization on ImmutableMap/ImmutableSet:
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- Use a DenseSet instead of a FoldingSet to cache
canonicalized nodes. This reduces the overhead
of double-hashing.
- Use reference counts in ImutAVLTree to much
more aggressively recover tree nodes that are
no longer usable. We can generate many
transient nodes while using add() and remove()
on ImmutableSet/ImmutableMaps to generate a final
set/map.
For the clang static analyzer (the main client
of these data structures), this results in
a slight speedup (0.5%) when analyzing sqlite3,
but much more importantly results in a 30-60%
reduction in peak memory usage when the analyzer
is analyzing a given function in a file. On
average that's about a ** 44% reduction ** in the
memory footprint of the static analyzer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120459 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 20:26:45 +00:00
Dale Johannesen
f619b5a665
Avoid exponential growth of a table. It feels like
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there should be a better way to do this. PR 8679.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120457 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 20:23:21 +00:00
Owen Anderson
c7373f8158
Provide Thumb2 encodings for a few miscellaneous instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120455 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 20:00:01 +00:00
Chris Lattner
83d6759403
various cleanups and code simplification
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120454 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:48:15 +00:00
Chris Lattner
e3c611085e
make getPointerSize a static function. Add ivars to DSE for
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AA and MD pass info instead of using getAnalysis<> all over.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120453 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:34:42 +00:00
Chris Lattner
9801651193
reduce indentation, clean up TD use a bit.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120452 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:28:23 +00:00
Jim Grosbach
c02ba66d41
Add FIXME
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120451 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:25:56 +00:00
Chris Lattner
558f5d2a39
forbid rtti and exceptions
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120450 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:20:40 +00:00
Owen Anderson
0e1bcdf4f7
Add encoding support for Thumb2 PLD and PLI instructions.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120449 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:19:31 +00:00
Eric Christopher
06a86da323
Noticed this on inspection, fix and update some comments.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120447 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:14:07 +00:00
Chris Lattner
55ee75d571
enhance isRemovable to refuse to delete volatile mem transfers
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now that DSE hacks on them. This fixes a regression I introduced,
by generalizing DSE to hack on transfers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120445 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:12:10 +00:00
Jim Grosbach
12822af16a
The VLDMQ/VSTMQ instructions are reprented as true Pseudo-insts now (i.e.,
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no extra encoding information), so we no longer need to special case them
here.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120444 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:08:32 +00:00
Jim Grosbach
37cc2f121d
Tidy up.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120443 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 19:00:13 +00:00
Jim Grosbach
2e812e1635
Pseudo-ize ARM MOVPCRX
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120442 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 18:56:36 +00:00
Jim Grosbach
b6e1e67b80
Delete a few no longer needed references to pseudos.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120441 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 18:56:13 +00:00
Cameron Zwarich
7285105922
Change the basic block map in LoopInfo from a std::map to a DenseMap. This is a 16% speedup running loops on test-suite + SPEC2000.
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Reviewed by Eric Christopher.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120440 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 18:51:19 +00:00
Owen Anderson
eb05a8d250
Provide encodings for a few more load/store variants.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120439 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 18:38:28 +00:00
Jim Grosbach
a0d2c8a40f
Pseudo-ize BX_CALL and friends. Remove dead instruction format classes.
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rdar://8685712
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120438 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 18:30:19 +00:00
Owen Anderson
7f2abbf268
Add tests for more forms of Thumb2 loads and stores.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120436 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 18:15:21 +00:00
Chris Lattner
de189be53f
add TLI support indicating that jumps are more expensive than logical operations
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and use this to disable a specific optimization. Patch by Micah Villmow!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120435 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 18:12:52 +00:00
Che-Liang Chiou
21d8b9bcad
ptx: add command-line options for gpu target and ptx version
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120423 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 10:14:14 +00:00
Eric Christopher
c459d06ae6
Not all platforms use _<func>. Duh.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120418 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 09:23:54 +00:00
Eric Christopher
fc967c9927
Fix some grammar in comments I noticed.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120416 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 09:11:54 +00:00
Eric Christopher
7f216bac5d
This defaults to GenericDomain.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120415 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 09:11:07 +00:00
Jay Foad
a99793c5ea
PR5207: Make APInt::set(), APInt::clear() and APInt::flip() return void.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120413 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 09:02:01 +00:00
Eric Christopher
d872f144e2
Implement a PseudoI class and transfer the sse instructions over to use
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it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120412 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 08:57:23 +00:00
Eric Christopher
41c902fdbe
Fix insertion point in pcmp expander.
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While I'm there, clean up too many \n even for me.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120411 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 08:20:21 +00:00
Eric Christopher
82be220092
Fix some cleanups from my last patch.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120410 91177308-0d34-0410-b5e6-96231b3b80d8
2010-11-30 08:10:28 +00:00