Commit Graph

45278 Commits

Author SHA1 Message Date
Nate Begeman
cbd88adea6 Fix a problem with DAGCombine on 64b targets where folding
extracts + build_vector into a shuffle would fail, because the
type of the new build_vector would not be legal.  Try harder to
create a legal build_vector type.  Note: this will be totally 
irrelevant once vector_shuffle no longer takes a build_vector for
shuffle mask.

New:
_foo:
	xorps	%xmm0, %xmm0
	xorps	%xmm1, %xmm1
	subps	%xmm1, %xmm1
	mulps	%xmm0, %xmm1
	addps	%xmm0, %xmm1
	movaps	%xmm1, 0

Old:
_foo:
	xorps	%xmm0, %xmm0
	movss	%xmm0, %xmm1
	xorps	%xmm2, %xmm2
	unpcklps	%xmm1, %xmm2
	pshufd	$80, %xmm1, %xmm1
	unpcklps	%xmm1, %xmm2
	pslldq	$16, %xmm2
	pshufd	$57, %xmm2, %xmm1
	subps	%xmm0, %xmm1
	mulps	%xmm0, %xmm1
	addps	%xmm0, %xmm1
	movaps	%xmm1, 0



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65791 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 23:44:07 +00:00
Chris Lattner
932af8f8c3 move gold plugin next to LTO doc in the subsystem section
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65790 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 23:42:51 +00:00
Nick Lewycky
f3888ba23f Add a quickstart example.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65789 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 21:55:10 +00:00
Nick Lewycky
f45a82890e Close list item tag, to conform with the style in this file. It's optional
anyways.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65787 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 21:07:44 +00:00
Nick Lewycky
017730c653 Add the gold plugin page to the documentation index!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65786 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 21:06:42 +00:00
Nick Lewycky
d66ff0f2e0 Cleanup the description of flags to llvm-gcc. Also remove stray text in the
attribution.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65785 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 20:58:07 +00:00
Nick Lewycky
050147cb70 Don't forget the important part. llvm-gcc -use-gold-plugin passes the right
options to gold.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65783 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 18:48:53 +00:00
Mikhail Glushenkov
f795ef0cd4 Sprinkle llvmc notes with <tt>.
Also removes some trailing whitespace.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65781 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 18:09:47 +00:00
Gabor Greif
5e7d4d643d Another sentinel optimization. This one should always
be a win, since almost every interesting function has at least one Argument.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65778 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 17:13:15 +00:00
Gabor Greif
abd6f28a74 Reuse a technique (pioneered for BasicBlocks) of superposing ilist with
its sentinel. This is quite a win when a function really has a basic block.                  
When the function is just a declaration (and stays so) the old way did not
allocate a sentinel. So this change is most beneficial when the ratio of
function definition to declaration is high. I.e. linkers etc. Incidentally  
these are the most resource demanding applications, so I expect that the
reduced malloc traffic, locality and space savings outweigh the cost of
addition of two pointers to Function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65776 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 16:38:10 +00:00
Duncan Sands
358f24943a Functions marked malloc are noalias return.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65775 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 16:19:31 +00:00
Duncan Sands
10f06755ce Tweak this a bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65772 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 15:19:03 +00:00
Duncan Sands
d14e9e78e4 Adjust this test for recent llvm-gcc changes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65771 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 15:01:51 +00:00
Nick Lewycky
fd97aa2bd2 Fix grammar.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65769 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 09:51:07 +00:00
Gabor Greif
1f3bd7a2ee fix a comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65768 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 09:45:52 +00:00
Gabor Greif
1a31d09a16 Fix a typo. Thanks baldrick!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65767 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 09:43:41 +00:00
Nick Lewycky
ebc6765970 First pass at a document describing how to achieve LTO on Linux with gold.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65766 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 09:38:29 +00:00
Duncan Sands
f910fd3110 Another point to mention.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65765 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 08:26:19 +00:00
Bill Wendling
8fe40819ae Temporarily revert r65755. It was causing failures in the self-hosting
testsuite:

Running /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/dg.exp ...
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/nancvt.ll
Failed with exit(1) at line 2
while running: grep 2147027116 nancvt.ll.tmp | count 3
count: expected 3 lines and got        0.
child process exited abnormally
FAIL: /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/vec_ins_extract.ll
Failed with exit(1) at line 1
while running:  llvm-as < /Volumes/Sandbox/Buildbot/llvm/full-llvm/build/llvmCore/test/CodeGen/X86/vec_ins_extract.ll |  opt -scalarrepl -instcombine |   llc -march=x86 -mcpu=yonah | not /usr/bin/grep sub.*esp
      subl      $28, %esp
      subl      $28, %esp
child process exited abnormally

And more.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65758 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 03:55:12 +00:00
Chris Lattner
c441fb8937 add some llvmc notes from Mikhail
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65756 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 02:30:21 +00:00
Chris Lattner
af89a3f1d3 hoist the check for alloca size up so that it controls CanConvertToScalar
as well as isSafeAllocaToScalarRepl.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65755 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 02:26:47 +00:00
Evan Cheng
870b80722f Minor optimization:
Look for situations like this:                                                                                                                                                              
%reg1024<def> = MOV r1                                                                                                                                                                      
%reg1025<def> = MOV r0                                                                                                                                                                      
%reg1026<def> = ADD %reg1024, %reg1025                                                                                                                                                      
r0            = MOV %reg1026                                                                                                                                                                
Commute the ADD to hopefully eliminate an otherwise unavoidable copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65752 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 02:03:43 +00:00
Chris Lattner
890484984b tweak this to accept asmprinter changes. I have no way to verify this, hopefully
the buildbot will work.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65750 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 01:28:40 +00:00
Chris Lattner
d2b6cb0a2b simplify handling "don't print top level name" processing, so that we get
stuff like %A = type { %A*} instead of an upref.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65748 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 01:16:21 +00:00
Bob Wilson
a27ea9e89f Combine PPC's GetConstantBuildVectorBits and isConstantSplat functions to a new
method in a BuildVectorSDNode "pseudo-class".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65747 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 01:13:55 +00:00
Chris Lattner
f6f0bdfec3 Fix a pretty awesome bug that only happened in a strange case with anonymous
types.  This was reading the uint for the keyword after the token was advanced.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65743 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 00:53:13 +00:00
Chris Lattner
884858608b walk type symbol table also, so we get:
type opaque		; type %0
	%C = type { %0, %0 }

instead of:

	%C = type { opaque, opaque }

when appropriate.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65742 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 00:32:33 +00:00
Chris Lattner
585cfb6821 adjust for asmprinter change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65741 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 00:26:51 +00:00
Chris Lattner
3aa8f6bc11 adjust for asmprinter change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65740 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 00:25:46 +00:00
Chris Lattner
13397b97ee adjust test to make it more robust
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65739 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 00:24:40 +00:00
Chris Lattner
413fd2304d Fix a long-standing bug and misfeature of the disassembler: when dealing with a
stripped .bc file, it didn't make any attempt to try to reuse anonymous types.
This causes an amazing type explosion due to types getting duplicated everywhere
they are referenced and other problems.

This also caused correctness issues, because opaque types are unique for each time
they are uttered in the file.  This means that stripping a .bc file could produce
a .ll file that could not be assembled (e.g. 2009-02-28-StripOpaqueName.ll).

This patch fixes both of these issues.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65738 91177308-0d34-0410-b5e6-96231b3b80d8
2009-03-01 00:03:38 +00:00
Chris Lattner
e9fa33eb66 move type name population out of TypePrinting class into a static
AsmWriter.cpp method.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65736 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 23:20:19 +00:00
Chris Lattner
87185e82f6 switch to densemap for pointer->word map.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65735 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 23:03:55 +00:00
Chris Lattner
ae3042316f delete a bunch of duplicated type printing logic, using the type printing
stuff in AsmWriter.cpp for Type::getDescription().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65734 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 23:01:57 +00:00
Chris Lattner
8ab55b747d make this work when constructed with a null module*
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65733 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 23:01:30 +00:00
Gabor Greif
7eef1800ea add description how the ilist_traits<Instruction> works
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65732 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 22:46:37 +00:00
Chris Lattner
6fa088393e the module is not required to exist, allow it to default, giving this
class a nice default ctor.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65731 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 22:41:33 +00:00
Chris Lattner
a725c45e9e disable copying and assignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65730 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 22:35:24 +00:00
Chris Lattner
d8030a7179 expose TypePrinting as a public API.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65729 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 22:34:45 +00:00
Chris Lattner
d3fc0a15c7 one less space, fixes failure with rebuilt llvm-gcc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65728 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 22:20:02 +00:00
Bill Wendling
0a4bbbf62f Fix grammaro.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65727 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 22:12:54 +00:00
Chris Lattner
30794269d5 rename 'Result' to 'OS' in CalcTypeName for consistency
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65724 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 21:27:31 +00:00
Chris Lattner
0f7364b4aa do not embed the raw_ostream into TypePrinting, pass it as an argument to print etc.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65723 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 21:26:53 +00:00
Chris Lattner
583ffd8787 stop calling Type::getDescription().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65722 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 21:18:43 +00:00
Chris Lattner
6d4306e63c simplifications
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65721 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 21:11:05 +00:00
Chris Lattner
c287137ce7 Change WriteTypeSymbolic to not put a space out before types, also, remove
the old std::ostream version.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65720 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 21:05:51 +00:00
Chris Lattner
534361e7e1 make CalcTypeName take a stream instead of a string to concat onto,
eliminate redundant opaque handling code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65716 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 20:49:40 +00:00
Chris Lattner
a32c3e4b1d remove a bunch of nearly-duplicated code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65715 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 20:40:29 +00:00
Chris Lattner
36942d7383 fix indentation, remove dead integer case.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65714 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 20:35:42 +00:00
Chris Lattner
b840cace77 pull calcTypeName into TypePrinting class, make its type stack
be a smallvector instead of vector.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@65713 91177308-0d34-0410-b5e6-96231b3b80d8
2009-02-28 20:34:19 +00:00