Cameron Zwarich
814cd9233e
Eliminate the use of dominance frontiers in PromoteMemToReg. In addition to
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eliminating a potentially quadratic data structure, this also gives a 17%
speedup when running -scalarrepl on test-suite + SPEC2000 + SPEC2006. My initial
experiment gave a greater speedup around 25%, but I moved the dominator tree
level computation from dominator tree construction to PromoteMemToReg.
Since this approach to computing IDFs has a much lower overhead than the old
code using precomputed DFs, it is worth looking at using this new code for the
second scalarrepl pass as well.
llvm-svn: 123609
2011-01-17 01:08:59 +00:00
Chris Lattner
bf0aa927cc
split dom frontier handling stuff out to its own DominanceFrontier header,
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so that Dominators.h is *just* domtree. Also prune #includes a bit.
llvm-svn: 122714
2011-01-02 22:09:33 +00:00
Duncan Sands
c6648eb4c3
Don't keep track of inserted phis in PromoteMemoryToRegister: the information
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is never used. Patch by Cameron Zwarich.
llvm-svn: 119963
2010-11-22 09:41:24 +00:00
Duncan Sands
637049515f
Have a few places that want to simplify phi nodes use SimplifyInstruction
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rather than calling hasConstantValue. No intended functionality change.
llvm-svn: 119352
2010-11-16 17:41:24 +00:00
Chris Lattner
b45de95345
remove some dead code.
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llvm-svn: 111344
2010-08-18 02:41:56 +00:00
Dan Gohman
5c2e65b7bf
Don't look up the "dbg" metadata kind by name.
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llvm-svn: 108961
2010-07-20 23:09:34 +00:00
Gabor Greif
a02f232c1b
cache result of operator*
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llvm-svn: 107966
2010-07-09 14:18:23 +00:00
Dan Gohman
dd41bba517
Use A.append(...) instead of A.insert(A.end(), ...) when A is a
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SmallVector, and other SmallVector simplifications.
llvm-svn: 106452
2010-06-21 19:47:52 +00:00
Devang Patel
36da24b546
Copy location info for current function argument from dbg.declare if respective store instruction does not have any location info.
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llvm-svn: 105490
2010-06-04 22:27:30 +00:00
Devang Patel
3e0fbafab2
Fix typo.
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llvm-svn: 104914
2010-05-28 01:29:50 +00:00
Devang Patel
e2099e8088
Fix typo.
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llvm-svn: 104913
2010-05-28 01:17:51 +00:00
Devang Patel
7a9dedf0ab
Do not drop location info for inlined function args.
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llvm-svn: 104884
2010-05-27 20:25:04 +00:00
Douglas Gregor
6739a89117
Fixes for Microsoft Visual Studio 2010, from Steven Watanabe!
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llvm-svn: 103457
2010-05-11 06:17:44 +00:00
Devang Patel
32cc43c242
Wrap const MDNode * inside DIDescriptor.
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llvm-svn: 103295
2010-05-07 20:54:48 +00:00
Devang Patel
4423abd734
Use overloaded operators instead of DIDescriptor::getNode()
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llvm-svn: 103276
2010-05-07 18:19:32 +00:00
Gabor Greif
c78d720f02
rename use_const_iterator to const_use_iterator for consistency's sake
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llvm-svn: 99564
2010-03-25 23:06:16 +00:00
Duncan Sands
19d0b47b1f
There are two ways of checking for a given type, for example isa<PointerType>(T)
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and T->isPointerTy(). Convert most instances of the first form to the second form.
Requested by Chris.
llvm-svn: 96344
2010-02-16 11:11:14 +00:00
Victor Hernandez
006b53f199
mem2reg erases the dbg.declare intrinsics that it converts to dbg.val intrinsics
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llvm-svn: 94763
2010-01-29 00:01:35 +00:00
Chris Lattner
65f4733b77
some cleanups.
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llvm-svn: 94649
2010-01-27 02:12:20 +00:00
Chris Lattner
711e701f1c
no need to check for null
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llvm-svn: 94648
2010-01-27 02:04:20 +00:00
Victor Hernandez
477d9274bb
When converting dbg.declare to dbg.value, attach promoted store's debug metadata to dbg.value
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llvm-svn: 94634
2010-01-27 00:44:36 +00:00
Victor Hernandez
9ecd2f039f
Switch AllocaDbgDeclares to SmallVector and don't leak DIFactory
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llvm-svn: 94567
2010-01-26 18:57:53 +00:00
Victor Hernandez
cd94410152
In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store.
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llvm-svn: 94493
2010-01-26 02:42:15 +00:00
Victor Hernandez
8a588e1444
Revert r94260 until findDbgDeclare() is made more efficient
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llvm-svn: 94432
2010-01-25 17:52:13 +00:00
Victor Hernandez
5006e43faf
In mem2reg, for all alloca/stores that get promoted where the alloca has an associated llvm.dbg.declare instrinsic, insert an llvm.dbg.var intrinsic before each store
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llvm-svn: 94260
2010-01-23 00:17:34 +00:00
Victor Hernandez
5f8c8c034a
Keep ignoring pointer-to-pointer bitcasts
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llvm-svn: 94194
2010-01-22 19:05:05 +00:00
Victor Hernandez
ae4d949721
DbgInfoIntrinsic no longer appear in an instruction's use list
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llvm-svn: 94113
2010-01-21 23:08:36 +00:00
Dan Gohman
28943873e6
Use do+while instead of while for loops which obviously have a
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non-zero trip count. Use SmallVector's pop_back_val().
llvm-svn: 92734
2010-01-05 16:27:25 +00:00
Chris Lattner
45d040bd85
Remove isPod() from DenseMapInfo, splitting it out to its own
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isPodLike type trait. This is a generally useful type trait for
more than just DenseMap, and we really care about whether something
acts like a pod, not whether it really is a pod.
llvm-svn: 91421
2009-12-15 07:26:43 +00:00
Chandler Carruth
dcf5dacb2c
Don't leave pointers uninitialized in the default constructor. GCC complains
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about the potential use of these uninitialized members under certain conditions.
llvm-svn: 91239
2009-12-13 07:04:45 +00:00
Nick Lewycky
15a1287c1f
Pull LLVMContext out of PromoteMemToReg.
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llvm-svn: 89645
2009-11-23 03:50:44 +00:00
Chris Lattner
4e849162ef
fix a bug exposed by moving SRoA earlier which caused a crash building kc++
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llvm-svn: 85786
2009-11-02 04:37:17 +00:00
Nick Lewycky
974e12b2d3
Remove includes of Support/Compiler.h that are no longer needed after the
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VISIBILITY_HIDDEN removal.
llvm-svn: 85043
2009-10-25 06:57:41 +00:00
Nick Lewycky
02d5f77d26
Remove VISIBILITY_HIDDEN from class/struct found inside anonymous namespaces.
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Chris claims we should never have visibility_hidden inside any .cpp file but
that's still not true even after this commit.
llvm-svn: 85042
2009-10-25 06:33:48 +00:00
Chris Lattner
e3ce1e2a37
tidy up
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llvm-svn: 82488
2009-09-21 22:26:02 +00:00
Dan Gohman
22571485b3
Change PHINode::hasConstantValue to have a DominatorTree argument
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instead of a bool argument, and to do the dominator check itself.
This makes it eaiser to use when DominatorTree information is
available.
llvm-svn: 80920
2009-09-03 15:34:35 +00:00
Dan Gohman
a6d0afcb74
Fix a bunch of namespace pollution.
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llvm-svn: 78363
2009-08-07 01:32:21 +00:00
Owen Anderson
b292b8ce70
Move more code back to 2.5 APIs.
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llvm-svn: 77635
2009-07-30 23:03:37 +00:00
Daniel Dunbar
132f78395a
Twines: Don't allow implicit conversion from integers, this is too tricky.
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llvm-svn: 77605
2009-07-30 17:37:43 +00:00
Daniel Dunbar
6afdc5e694
Switch obvious clients to Twine instead of utostr (when they were already using
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a Twine, e.g., for names).
- I am a little ambivalent about this; we don't want the string conversion of
utostr, but using overload '+' mixed with string and integer arguments is
sketchy. On the other hand, this particular usage is something of an idiom.
llvm-svn: 77579
2009-07-30 04:20:37 +00:00
Owen Anderson
47db941fd3
Get rid of the Pass+Context magic.
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llvm-svn: 76702
2009-07-22 00:24:57 +00:00
Owen Anderson
38264b1554
"LLVMContext* " --> "LLVMContext *"
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llvm-svn: 74878
2009-07-06 23:00:19 +00:00
Owen Anderson
e70b637033
More LLVMContext-ification.
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llvm-svn: 74807
2009-07-05 22:41:43 +00:00
Dan Gohman
9a6fef0a52
Simplify code by using SmallVector's pop_back_val() instead of
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separate back() and pop_back() calls.
llvm-svn: 71089
2009-05-06 17:22:41 +00:00
Eli Friedman
929207fd1d
Fix for PR3944: make mem2reg O(N) instead of O(N^2) in the number of
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incoming edges for a block with many predecessors.
llvm-svn: 69312
2009-04-16 21:40:28 +00:00
Dale Johannesen
073ab5acab
Tweak the check for promotable alloca's to handle
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debug intrinsics correctly.
llvm-svn: 66225
2009-03-06 00:42:50 +00:00
Devang Patel
b63c74730c
Let AnalyzeAlloca() remove debug intrinsics.
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llvm-svn: 59454
2008-11-17 18:37:53 +00:00
Daniel Dunbar
2b9dce2669
Rework r58829, allowing removal of dbg info intrinsics during alloca
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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.
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llvm-svn: 58830
2008-11-07 01:59:41 +00:00
Devang Patel
b8e0d59ceb
Handle (delete) dbg intrinsics while promoting alloca.
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llvm-svn: 58826
2008-11-07 01:30:07 +00:00