OSDN Git Service
Chris Lattner [Tue, 1 Apr 2008 03:59:34 +0000 (03:59 +0000)]
rewrite SourceFile to be in terms of MemoryBuffer, not MappedFile.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49027
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Chris Lattner [Tue, 1 Apr 2008 03:49:38 +0000 (03:49 +0000)]
Make MappedFile::map return a const correct pointer, don't leak address space on Unix platforms.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49026
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Chris Lattner [Tue, 1 Apr 2008 03:40:53 +0000 (03:40 +0000)]
Remove the MappedFile::charBase member, rename base -> getBase() and
make getBase() return a const-correct pointer.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49025
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Chris Lattner [Tue, 1 Apr 2008 03:39:49 +0000 (03:39 +0000)]
Change DiffFilesWithTolerance to be written in terms of MemoryBuffer,
not an mmapped file. This more closely matches its requirements and
provides an implicitly null terminated buffer, something this
routine had to emulate itself before.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49024
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Chris Lattner [Tue, 1 Apr 2008 03:20:31 +0000 (03:20 +0000)]
add an accessor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49023
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Chris Lattner [Tue, 1 Apr 2008 03:10:22 +0000 (03:10 +0000)]
Remove MappedFile support for mapping files for write and exec
and shared. This complicates the design, is not used, and probably
doesn't even work.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49022
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Chris Lattner [Tue, 1 Apr 2008 03:01:15 +0000 (03:01 +0000)]
remove extraneous #include
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49021
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Chris Lattner [Tue, 1 Apr 2008 02:58:05 +0000 (02:58 +0000)]
add missing #includes
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49020
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Evan Cheng [Tue, 1 Apr 2008 02:18:22 +0000 (02:18 +0000)]
More soft fp fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49016
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Evan Cheng [Tue, 1 Apr 2008 02:00:09 +0000 (02:00 +0000)]
Pasto.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49014
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Evan Cheng [Tue, 1 Apr 2008 01:51:26 +0000 (01:51 +0000)]
Add comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49013
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Evan Cheng [Tue, 1 Apr 2008 01:50:16 +0000 (01:50 +0000)]
Unbreak ARM / Thumb soft FP support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49012
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Dale Johannesen [Tue, 1 Apr 2008 00:57:48 +0000 (00:57 +0000)]
Accept 'y' constraint (MMX) in inline asm.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49011
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Chris Lattner [Tue, 1 Apr 2008 00:54:39 +0000 (00:54 +0000)]
update comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49010
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Chris Lattner [Tue, 1 Apr 2008 00:53:25 +0000 (00:53 +0000)]
cleanup the MappedFile API and comments. This removes and updates
tons of out of date comments (really nothing throws here!) and fixes
some other fairly glaring issues: "size" used to return the size of
the file *and* change it, depending on how you called it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49009
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Chris Lattner [Tue, 1 Apr 2008 00:35:55 +0000 (00:35 +0000)]
remove DEFINING_FILE_FOR for MappedFile.h
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49008
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Dale Johannesen [Mon, 31 Mar 2008 23:40:23 +0000 (23:40 +0000)]
Emit exception handling info for functions which are
not marked nounwind, or for all functions when -enable-eh
is set, provided the target supports Dwarf EH.
llvm-gcc generates nounwind in the right places; other FEs
will need to do so also. Given such a FE, -enable-eh should
no longer be needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49006
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Dale Johannesen [Mon, 31 Mar 2008 23:20:09 +0000 (23:20 +0000)]
Mark functions in some tests as 'nounwind'. Generating
EH info for these functions causes the tests to fail for
random reasons (e.g. looking for 'or' or counting lines
with asm-printer; labels count as lines.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49003
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Evan Cheng [Mon, 31 Mar 2008 23:19:51 +0000 (23:19 +0000)]
It's not safe to fold a load from GV stub or constantpool into a two-address use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49002
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Nate Begeman [Mon, 31 Mar 2008 22:19:25 +0000 (22:19 +0000)]
Actually disable crash reporting on Mac OS X, returning bugpoint to speedy
crash miscompilations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49000
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Dan Gohman [Mon, 31 Mar 2008 22:08:00 +0000 (22:08 +0000)]
Set blockBegin to point to the beginning of the block,
not the end.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48999
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Evan Cheng [Mon, 31 Mar 2008 20:40:39 +0000 (20:40 +0000)]
Move reMaterialize() from TargetRegisterInfo to TargetInstrInfo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48995
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Dan Gohman [Mon, 31 Mar 2008 20:32:52 +0000 (20:32 +0000)]
Fix a DAGCombiner optimization to respect volatile qualification.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48994
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Gordon Henriksen [Mon, 31 Mar 2008 17:27:57 +0000 (17:27 +0000)]
Add a unified 'generated documentation' target so the web site script has a consistent target to use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48985
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Torok Edwin [Mon, 31 Mar 2008 17:09:58 +0000 (17:09 +0000)]
test commit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48984
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Gordon Henriksen [Mon, 31 Mar 2008 16:46:23 +0000 (16:46 +0000)]
Reverting r48974. See PR2183 for details.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48983
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Erick Tryzelaar [Mon, 31 Mar 2008 16:22:09 +0000 (16:22 +0000)]
Expose Function::viewCFG and Function::viewCFGOnly to bindings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48982
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Erick Tryzelaar [Mon, 31 Mar 2008 08:50:45 +0000 (08:50 +0000)]
There isn't any c++ code in LangImpl8.html, so use that
instead of OCamlLangImpl8.html.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48979
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Erick Tryzelaar [Mon, 31 Mar 2008 08:44:50 +0000 (08:44 +0000)]
Chapter 5, 6, and 7 of the ocaml/kaleidoscope tutorial
and fix some tabs in chapter 3 and 4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48978
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Evan Cheng [Mon, 31 Mar 2008 07:54:19 +0000 (07:54 +0000)]
Re-apply 48911.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48977
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Evan Cheng [Mon, 31 Mar 2008 07:53:30 +0000 (07:53 +0000)]
The support for remat of instructions with a register operand is hackish, to say the least. Since the register operand guaranteed to be PIC base and that it is already live at all uses, we are making sure it will not be spilled after its uses are rematerialized for both performance and correctness reasons.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48976
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Erick Tryzelaar [Mon, 31 Mar 2008 03:46:43 +0000 (03:46 +0000)]
Quote the ocaml executables
realazthat in #llvm was having problems building llvm
because configure was finding an ocaml executable in
a directory with a space in it's name. This patch
puts quotes around the name so that llvm can build for
him.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48974
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Owen Anderson [Mon, 31 Mar 2008 01:39:20 +0000 (01:39 +0000)]
Fix a major bug in the DFS calculation. Thanks for Christopher Lamb for pointing this out.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48973
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Nate Begeman [Mon, 31 Mar 2008 00:22:16 +0000 (00:22 +0000)]
Don't eliminate bitcast instructions that change the type of a pointer
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48971
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Erick Tryzelaar [Sun, 30 Mar 2008 20:32:18 +0000 (20:32 +0000)]
Tweak build system to allow for installing the tutorial and uninstalling the docs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48968
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Duncan Sands [Sun, 30 Mar 2008 19:38:55 +0000 (19:38 +0000)]
Fix comment typo.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48967
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Erick Tryzelaar [Sun, 30 Mar 2008 19:14:31 +0000 (19:14 +0000)]
Fix some documentation for the tutorial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48966
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Nick Lewycky [Sun, 30 Mar 2008 19:07:11 +0000 (19:07 +0000)]
Moved from PR1570.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48965
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Chris Lattner [Sun, 30 Mar 2008 18:58:05 +0000 (18:58 +0000)]
stop building llvmc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48964
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Chris Lattner [Sun, 30 Mar 2008 18:22:13 +0000 (18:22 +0000)]
Fix "Control reaches the end of non-void function" warnings,
patch by David Chisnall.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48963
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Chris Lattner [Sun, 30 Mar 2008 18:02:00 +0000 (18:02 +0000)]
minor code cleanups, allow constant folding sinf/cosf.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48961
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Chris Lattner [Sun, 30 Mar 2008 16:59:21 +0000 (16:59 +0000)]
fix typo, PR2181
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48954
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Erick Tryzelaar [Sun, 30 Mar 2008 09:57:12 +0000 (09:57 +0000)]
Add chapter 3 and 4 of the ocaml/kaleidoscope tutorial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48949
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Evan Cheng [Sat, 29 Mar 2008 18:34:22 +0000 (18:34 +0000)]
Cosmetic changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48947
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Anton Korobeynikov [Sat, 29 Mar 2008 11:25:49 +0000 (11:25 +0000)]
Honour another bunch of parameter attributes in llvm2cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48942
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Anton Korobeynikov [Sat, 29 Mar 2008 11:15:01 +0000 (11:15 +0000)]
Honour ByVal parameter attribute in llvm2cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48941
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Chris Lattner [Sat, 29 Mar 2008 05:15:47 +0000 (05:15 +0000)]
change iterator invalidation avoidance to just move the iterator backward
when something changes, instead of moving forward. This allows us to
simplify memset lowering, inserting the memset at the end of the range of
stuff we're touching instead of at the start.
This, in turn, allows us to make use of the addressing instructions already
used in the function instead of inserting our own. For example, we now
codegen:
%tmp41 = getelementptr [8 x i8]* %ref_idx, i32 0, i32 0 ; <i8*> [#uses=2]
call void @llvm.memset.i64( i8* %tmp41, i8 -1, i64 8, i32 1 )
instead of:
%tmp20 = getelementptr [8 x i8]* %ref_idx, i32 0, i32 7 ; <i8*> [#uses=1]
%ptroffset = getelementptr i8* %tmp20, i64 -7 ; <i8*> [#uses=1]
call void @llvm.memset.i64( i8* %ptroffset, i8 -1, i64 8, i32 1 )
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48940
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Chris Lattner [Sat, 29 Mar 2008 04:52:12 +0000 (04:52 +0000)]
make the common case of a single store (which clearly shouldn't be turned
into a memset!) faster by avoiding an allocation of an std::list node.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48939
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Chris Lattner [Sat, 29 Mar 2008 04:51:35 +0000 (04:51 +0000)]
add a testcase for forming memset from noncontiguous stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48938
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Chris Lattner [Sat, 29 Mar 2008 04:36:18 +0000 (04:36 +0000)]
give form-memset a significantly more sane heuristic, enable it by default.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48937
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Owen Anderson [Sat, 29 Mar 2008 01:58:47 +0000 (01:58 +0000)]
Remove some unneeded code for LiveInterval joining, and fix a bug in the Phi elimination algorithm where we were accidentally reasoning about
the source rather than the destination.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48936
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Evan Cheng [Sat, 29 Mar 2008 01:04:05 +0000 (01:04 +0000)]
Cosmetic change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48935
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Dan Gohman [Fri, 28 Mar 2008 23:45:16 +0000 (23:45 +0000)]
Fix a tokenfactor node to use the load chain rather than the
load value. This fixes PR2177.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48932
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Evan Cheng [Fri, 28 Mar 2008 17:49:06 +0000 (17:49 +0000)]
Backing out 48911 for now. It's breaking stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48922
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Chris Lattner [Fri, 28 Mar 2008 15:36:27 +0000 (15:36 +0000)]
ifdef out a dead function. Should this be removed?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48916
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Duncan Sands [Fri, 28 Mar 2008 09:45:24 +0000 (09:45 +0000)]
Rename getAnyLoad to getLoad is suggested by Evan.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48914
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Evan Cheng [Fri, 28 Mar 2008 07:07:06 +0000 (07:07 +0000)]
New entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48912
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Evan Cheng [Fri, 28 Mar 2008 06:49:25 +0000 (06:49 +0000)]
Load from stub is already re-materializable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48911
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Nick Lewycky [Fri, 28 Mar 2008 06:46:51 +0000 (06:46 +0000)]
Update example to new syntax.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48910
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Chris Lattner [Fri, 28 Mar 2008 06:45:13 +0000 (06:45 +0000)]
make memset inference significantly more powerful: it can now handle
memsets that initialize "structs of arrays" and other store sequences
that are not sequential. This is still only enabled if you pass
-form-memset-from-stores. The flag is not heavily tested and I haven't
analyzed the perf regressions when -form-memset-from-stores is passed
either, but this causes no make check regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48909
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Evan Cheng [Fri, 28 Mar 2008 06:34:23 +0000 (06:34 +0000)]
New entry.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48908
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Bill Wendling [Fri, 28 Mar 2008 06:22:23 +0000 (06:22 +0000)]
Simplify the conversion from "0x" numbers to a single digit number.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48907
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Duncan Sands [Thu, 27 Mar 2008 20:23:40 +0000 (20:23 +0000)]
Implement LegalizeTypes support for softfloat LOAD.
In order to handle indexed nodes I had to introduce
a new constructor, and since I was there I factorized
the code in the various load constructors.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48894
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Dan Gohman [Thu, 27 Mar 2008 19:56:19 +0000 (19:56 +0000)]
Avoid creating chain dependencies from CopyToReg nodes to load and store
nodes. This doesn't currently have much impact the generated code, but it
does produce simpler-looking SelectionDAGs, and consequently
simpler-looking ScheduleDAGs, because there are fewer spurious
dependencies.
In particular, CopyValueToVirtualRegister now uses the entry node as the
input chain dependency for new CopyToReg nodes instead of calling getRoot
and depending on the most recent memory reference.
Also, rename UnorderedChains to PendingExports and pull it up from being
a local variable in SelectionDAGISel::BuildSelectionDAG to being a
member variable of SelectionDAGISel, so that it doesn't have to be
passed around to all the places that need it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48893
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Devang Patel [Thu, 27 Mar 2008 17:32:46 +0000 (17:32 +0000)]
PHI->removeIncomingValue may remove PHInode.
Increment iterator in advance.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48890
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Devang Patel [Thu, 27 Mar 2008 17:13:55 +0000 (17:13 +0000)]
add another testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48881
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Mikhail Glushenkov [Thu, 27 Mar 2008 09:53:47 +0000 (09:53 +0000)]
Fix build breakage on Windows with GCC 4.3. References bug #2176.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48874
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Roman Levenstein [Thu, 27 Mar 2008 09:44:37 +0000 (09:44 +0000)]
Fix spelling. Thanks, Duncan! :-)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48873
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Roman Levenstein [Thu, 27 Mar 2008 09:14:57 +0000 (09:14 +0000)]
Speed-up the SumOfUnscheduledPredsOfSuccs by introducing a new function
called LimitedSumOfUnscheduledPredsOfSuccs. It terminates the computation
after a given treshold is reached. This new function is always faster, but
brings real wins only on bigger test-cases.
The old function SumOfUnscheduledPredsOfSuccs is left in-place for now and therefore a warning about an unused static function is produced.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48872
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Erick Tryzelaar [Thu, 27 Mar 2008 08:18:07 +0000 (08:18 +0000)]
Adding the first two chapters of the ocaml/kaleidoscope tutorial.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48871
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Chris Lattner [Thu, 27 Mar 2008 02:43:03 +0000 (02:43 +0000)]
when a node is removed from an ilist, set its next/prev pointers to
null. This means that uses of invalidated iterators will explode violently
with:
ilist:143: failed assertion `NodePtr && "++'d off the end of an ilist!"'
instead of happening to work "most of the time".
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48859
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Devang Patel [Thu, 27 Mar 2008 01:51:31 +0000 (01:51 +0000)]
New test case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48858
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Evan Cheng [Thu, 27 Mar 2008 01:45:11 +0000 (01:45 +0000)]
Code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48856
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Evan Cheng [Thu, 27 Mar 2008 01:41:09 +0000 (01:41 +0000)]
Allow certain lea instructions to be rematerialized.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48855
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Evan Cheng [Thu, 27 Mar 2008 01:30:24 +0000 (01:30 +0000)]
Remove an unused command line option.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48854
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Evan Cheng [Thu, 27 Mar 2008 01:27:25 +0000 (01:27 +0000)]
Fix a memory bug: increment an iterator of a deleted machine instr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48853
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Erick Tryzelaar [Thu, 27 Mar 2008 00:27:14 +0000 (00:27 +0000)]
Expose ExecutionEngine::getTargetData() to c and ocaml bindings.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48851
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Chuck Rose III [Thu, 27 Mar 2008 00:02:53 +0000 (00:02 +0000)]
Updating win32 VStudio project files with new file references and removing dead references.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48849
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Dale Johannesen [Wed, 26 Mar 2008 23:31:39 +0000 (23:31 +0000)]
Fix a bug in Darwin EH: FDE->CIE pointer must
be relocatable. Describe why .set is needed better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48848
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Mikhail Glushenkov [Wed, 26 Mar 2008 21:37:43 +0000 (21:37 +0000)]
Another test commit (with git-svn)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48843
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Mikhail Glushenkov [Wed, 26 Mar 2008 21:18:58 +0000 (21:18 +0000)]
Test commit
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48840
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Evan Cheng [Wed, 26 Mar 2008 20:15:49 +0000 (20:15 +0000)]
One more coalescer fix wrt deadness propagation.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48837
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Evan Cheng [Wed, 26 Mar 2008 19:03:01 +0000 (19:03 +0000)]
Avoid commuting a def MI in order to coalesce a copy instruction away if any use of the same val# is a copy instruction that has already been coalesced.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48833
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Roman Levenstein [Wed, 26 Mar 2008 12:39:26 +0000 (12:39 +0000)]
Use a linked data structure for the uses lists of an SDNode, just like
LLVM Value/Use does and MachineRegisterInfo/MachineOperand does.
This allows constant time for all uses list maintenance operations.
The idea was suggested by Chris. Reviewed by Evan and Dan.
Patch is tested and approved by Dan.
On normal use-cases compilation speed is not affected. On very big basic
blocks there are compilation speedups in the range of 15-20% or even better.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48822
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Roman Levenstein [Wed, 26 Mar 2008 11:23:38 +0000 (11:23 +0000)]
Fixed some spelling errors. Thanks, Duncan!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48819
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Roman Levenstein [Wed, 26 Mar 2008 09:18:09 +0000 (09:18 +0000)]
Some improvements related to the computation of isReachable.
This fixes Bugzilla #1835 (http://llvm.org/bugs/show_bug.cgi?id=1835).
This patched is reviewed by Tanya and Dan. Dan tested and approved it.
The reason for the bad performance of the old algorithm is that it is very naive and scans every
time all nodes of the DAG in the worst case.
This patch introduces a new algorithm based on the paper "Online algorithms
for maintaining the topological order of a directed acyclic graph" by
David J.Pearce and Paul H.J.Kelly. This is the MNR algorithm. It has a
linear time worst-case and performs much better in most situations.
The paper can be found here:
http://fano.ics.uci.edu/cites/Document/Online-algorithms-for-maintaining-the-topological-order-of-a-directed-acyclic-graph.html
The main idea of the new algorithm is to compute the topological ordering of the SNodes in the
DAG and to maintain it even after DAG modifications. The topological ordering allows for very fast
node reachability checks.
Tests on very big input files with tens of thousands of instructions in a BB indicate huge
speed-ups (up to 10x compilation time improvement) compared to the old version.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48817
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Evan Cheng [Wed, 26 Mar 2008 08:11:49 +0000 (08:11 +0000)]
Fix some SSE4.1 instruction encoding bugs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48815
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Owen Anderson [Wed, 26 Mar 2008 03:03:23 +0000 (03:03 +0000)]
Dead PHI instructions need to be handled specially.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48811
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Erick Tryzelaar [Wed, 26 Mar 2008 00:38:56 +0000 (00:38 +0000)]
Test commit (removed trailing whitespace)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48809
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Dale Johannesen [Tue, 25 Mar 2008 23:29:30 +0000 (23:29 +0000)]
Use ## for comment delimiter on darwin x86-32, so
llvm's output .s files will go through gcc -std=c99
without triggering preprocesser errors. Approach
suggested by Daveed Vandevoorde.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48808
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Evan Cheng [Tue, 25 Mar 2008 22:29:46 +0000 (22:29 +0000)]
Smaller function alignment when optimizing for size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48805
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Evan Cheng [Tue, 25 Mar 2008 22:28:39 +0000 (22:28 +0000)]
Rename option -optimizefor-size to -optimize-size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48804
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Owen Anderson [Tue, 25 Mar 2008 22:26:43 +0000 (22:26 +0000)]
Remove some debugging code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48803
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Owen Anderson [Tue, 25 Mar 2008 22:25:27 +0000 (22:25 +0000)]
StrongPHIElimination doesn't support swapping live intervals like the coalescer does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48802
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Dan Gohman [Tue, 25 Mar 2008 22:06:05 +0000 (22:06 +0000)]
Add explicit keywords.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48801
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Dan Gohman [Tue, 25 Mar 2008 21:45:14 +0000 (21:45 +0000)]
A quick nm audit turned up several fixed tables and objects that were
marked read-write. Use const so that they can be allocated in a
read-only segment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48800
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Dan Gohman [Tue, 25 Mar 2008 21:38:12 +0000 (21:38 +0000)]
Avoid outputing spaces at the ends of lines.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48797
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Devang Patel [Tue, 25 Mar 2008 21:03:02 +0000 (21:03 +0000)]
Do not align loops if optimizing for size.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48794
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Devang Patel [Tue, 25 Mar 2008 21:02:35 +0000 (21:02 +0000)]
Add optimize-for-size knob.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48793
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Evan Cheng [Tue, 25 Mar 2008 20:08:07 +0000 (20:08 +0000)]
Handle a special case xor undef, undef -> 0. Technically this should be transformed to undef. But this is such a common idiom (misuse) we are going to handle it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48792
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