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Author SHA1 Message Date
Wesley Peck
68d1fe9700 Reworking the wording of the "target data string" paragraph in the "Optimizer Improvments" section of the release notes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102059 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 13:28:34 +00:00
Gabor Greif
ed38745a2a <pre> seems to close <p> 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102057 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 10:25:23 +00:00
Gabor Greif
ee2187a38d the validator coughed up some problems, most of them fixed 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102056 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 10:21:43 +00:00
Gabor Greif
c8b3af9f5f shorten link 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102055 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 10:11:24 +00:00
Chris Lattner
f455529b9e static analyzer has its own section 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102054 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 06:39:56 +00:00
Chris Lattner
8cdd7939ad add mc and static analyzer blurbs. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102053 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 06:38:11 +00:00
Chris Lattner
914ce46040 another checkpoint. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102052 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 06:28:20 +00:00
Chris Lattner
7b91eda0de various updates. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102051 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 05:41:35 +00:00
Chris Lattner
70745c661d fix file header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102049 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 05:33:15 +00:00
Dan Gohman
ddb3eafc32 Don't attempt to analyze values which are obviously undef. This fixes some 
assertion failures in extreme cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102042 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 01:35:11 +00:00
Dan Gohman
0883355976 Tidy a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102041 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-22 01:30:05 +00:00
Jakob Stoklund Olesen
a063e19593 Run LiveVariables instead of computing liveness locally in -regalloc=fast. 
This actually makes everything slower, but the plan is to have isel add <kill>
flags the way it is already adding <dead> flags. Then LiveVariables can be
removed again.

When ignoring the time spent in LiveVariables, -regalloc=fast is now twice as
fast as -regalloc=local.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102034 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 23:18:07 +00:00
Evan Cheng
e3dd8550c6 Do not try to optimize a copy that has already been marked for deletion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102027 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 20:57:54 +00:00
Devang Patel
708e474c2f Add command line option to disable debug info printing in .s file. This option does not impact debug info generation and preservation through earlier compile starges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102012 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 19:08:53 +00:00
Bob Wilson
b913863a95 Fix a performance problem with the new SSAUpdater. This showed up in the 
GCCAS time for MultiSource/Benchmarks/ASCI_Purple/SMG2000.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102009 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 18:39:03 +00:00
Johnny Chen
c048f1d12c Modified some assert() msg strings; no other functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102008 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 18:37:48 +00:00
Jakob Stoklund Olesen
00207237dd Add fast register allocator, enabled with -regalloc=fast. 
So far this is just a clone of -regalloc=local that has been lobotomized to run
25% faster. It drops the least-recently-used calculations, and is just plain
stupid when it runs out of registers.

The plan is to make this go even faster for -O0 by taking advantage of the short
live intervals in unoptimized code. It should not be necessary to calculate
liveness when most virtual registers are killed 2-3 instructions after they are
born.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102006 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 18:02:42 +00:00
Devang Patel
9cdb4109d5 Identify when a lexical scope is split in to multiple instruction ranges. Emit such ranges using DW_AT_ranges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102004 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 16:32:19 +00:00
Dan Gohman
a560fd28c0 Make ScalarEvolution::getConstant support pointer types, for consistency 
with ScalarEvolution's overall approach to pointer types.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102003 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 16:04:04 +00:00
Duncan Sands
cb9dda6946 Dragonegg will be released along side llvm-2.7. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@102001 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 13:51:48 +00:00
Chris Lattner
a54c1f70b8 final hacking for tonight, still more to go. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101995 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 06:42:24 +00:00
Chris Lattner
450a31edde continue the process of detangling this. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101992 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 06:23:40 +00:00
Chris Lattner
b7c85b49a4 rough pass moving stuff into relevant sections, still much 
editing to do.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101987 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 05:17:40 +00:00
Chris Lattner
b136f09deb remove ldc, rubinious, macruby, icedtea, llvm-lua, which 
don't have updates for 2.7.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101985 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 04:28:21 +00:00
Evan Cheng
e566763b19 Implement -disable-non-leaf-fp-elim which disable frame pointer elimination 
optimization for non-leaf functions. This will be hooked up to gcc's
-momit-leaf-frame-pointer option. rdar://7886181


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101984 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 03:18:23 +00:00
Evan Cheng
5528e7bcb1 isel (i32 anyext i16) as insert_subreg when 16-bit ops are being promoted. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101979 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 01:47:12 +00:00
Evan Cheng
fe5dcbc27d Trim include. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101978 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 01:39:06 +00:00
Dan Gohman
f0757b0edc Add more const qualifiers on TargetMachine and friends. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101977 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 01:34:56 +00:00
Dan Gohman
af5097537c Update CMakeLists.txt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101976 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 01:32:29 +00:00
Dan Gohman
5eb6d65a27 Move several SelectionDAG-independent utility functions out of the 
SelectionDAG directory and into a new Analysis.cpp file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101975 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 01:22:34 +00:00
Johnny Chen
52d2b0ed00 Thumb instructions which have reglist operands at the end and predicate operands 
before reglist were not properly handled with respect to IT Block.  Fix that by
creating a new method ARMBasicMCBuilder::DoPredicateOperands() used by those
instructions for disassembly.  Add a test case.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101974 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 01:01:19 +00:00
Chris Lattner
08e322db8a Implement (but don't enable) PR6724 and rdar://6295824. In short, 
we have RefreshCallGraph detect when a function pass devirtualizes
a call, and have CGSCCPassMgr iterate (up to a count) when this 
happens.  This allows (in the example) GVN to devirtualize the 
call in foo, then the inliner to inline it away.

This is not currently enabled because I haven't done any analysis
on the (potentially substantial) code size or performance impact of
doing this, and guess what, it exposes callgraph updating bugs in
various passes.  This is progress though, and you can play with it
by passing -max-cg-scc-iterations=5 to opt.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101973 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 00:47:40 +00:00
Evan Cheng
30fdb5c2ac - Clean up some crappy code which deals with coalescing of copies which look at 
extract_subreg / insert_subreg, etc.
- Add support for more aggressive insert_subreg coalescing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101971 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 00:44:22 +00:00
Dan Gohman
d217cfcf46 Revert r101471. For tight recursive functions which have multiple 
recursive callsites, inlining can reduce the number of calls by
exponential factors, as it does in
MultiSource/Benchmarks/Olden/treeadd. More involved heuristics
will be needed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101969 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 00:43:30 +00:00
Bill Wendling
a040fffefb Handle a displacement location in 64-bit as an RIP-relative displacement. It 
fixes a bug (<rdar://problem/7880900>) in the JIT. This code wouldn't work:

target triple = "x86_64-apple-darwin"

define double @func(double %a) {
  %tmp1 = fmul double %a, 5.000000e-01            ; <double> [#uses=1]
  ret double %tmp1
}

define i32 @main() nounwind {
  %1 = call double @func(double 4.770000e-04) ; <i64> [#uses=0]
  ret i32 0
}


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101965 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 00:34:04 +00:00
Evan Cheng
3115698611 Rewrite machine cse to avoid recursion. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101964 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 00:21:07 +00:00
Dan Gohman
bc7588eb68 Add another variant of this test which found a place where 
CodeGen's ComputeMaskedBits was being over-conservative when computing
bits for an ADD.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101963 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-21 00:19:28 +00:00
Chris Lattner
d6139425f5 teach the x86 address matching stuff to handle 
(shl (or x,c), 3) the same as (shl (add x, c), 3)
when x doesn't have any bits from c set.

This finishes off PR1135.  Before we compiled the block to:
to:

LBB0_3:                                 ## %bb
	cmpb	$4, %dl
	sete	%dl
	addb	%dl, %cl
	movb	%cl, %dl
	shlb	$2, %dl
	addb	%r8b, %dl
	shlb	$2, %dl
	movzbl	%dl, %edx
	movl	%esi, (%rdi,%rdx,4)
	leaq	2(%rdx), %r9
	movl	%esi, (%rdi,%r9,4)
	leaq	1(%rdx), %r9
	movl	%esi, (%rdi,%r9,4)
	addq	$3, %rdx
	movl	%esi, (%rdi,%rdx,4)
	incb	%r8b
	decb	%al
	movb	%r8b, %dl
	jne	LBB0_1

Now we produce:

LBB0_3:                                 ## %bb
	cmpb	$4, %dl
	sete	%dl
	addb	%dl, %cl
	movb	%cl, %dl
	shlb	$2, %dl
	addb	%r8b, %dl
	shlb	$2, %dl
	movzbl	%dl, %edx
	movl	%esi, (%rdi,%rdx,4)
	movl	%esi, 8(%rdi,%rdx,4)
	movl	%esi, 4(%rdi,%rdx,4)
	movl	%esi, 12(%rdi,%rdx,4)
	incb	%r8b
	decb	%al
	movb	%r8b, %dl
	jne	LBB0_1



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101958 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 23:18:40 +00:00
Dale Johannesen
7609017dc3 Because of the EMMS problem, right now we have to support 
user-defined operations that use MMX register types, but
the compiler shouldn't generate them on its own.  This adds
a Synthesizable abstraction to represent this, and changes
the vector widening computation so it won't produce MMX types.
(The motivation is to remove noise from the ABI compatibility
part of the gcc test suite, which has some breakage right now.)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101951 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 22:34:09 +00:00
Devang Patel
3943084136 Rename ValueMapTy as ValueToValueMapTy to clearly indicate that this has no replationship with ADT/ValueMap. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101950 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 22:24:18 +00:00
Devang Patel
cd9b492451 There is no need to install ValueMapper.h header. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101949 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 22:18:31 +00:00
Johnny Chen
d6b5d72c0f Better error-handling of getBitFieldInvMask() where msb < lsb (encoding error), 
instead of just asserting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101942 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 21:29:28 +00:00
Duncan Sands
51a517436f I plan to release a version of dragonegg based on llvm-2.7 shortly 
after the llvm-2.7 release.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101934 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 19:40:58 +00:00
Jakob Stoklund Olesen
9196ab6405 When MachineLICM is hoisting a physical register after regalloc, make sure the 
register is not killed in the loop.

This fixes 188.ammp on ARM where the post-ra scheduler would grab a register
that looked available but wasn't.

A testcase would be huge and fragile, sorry.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101930 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 18:45:47 +00:00
Johnny Chen
56a1afb6b0 When doing Thumb disassembly, there's no need to consider t2ADDrSPi12/t2SUBrSPi12, 
as their generic counterparts t2ADDri12/t2SUBri12 should suffice.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101929 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 18:45:24 +00:00
Bill Wendling
b545cde675 Move CodeGen/X86/2010-04-19-DAGCombineCrash.ll into CodeGen/X86/crash.ll. Also 
reduce.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101925 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 18:14:47 +00:00
Johnny Chen
ef37e3abb7 For t2LDRT, t2LDRBT, t2LDRHT, t2LDRSBT, and t2LDRSHT, if Rn(Inst{19-16})=='1111', 
transform the Opcode to the corresponding t2LDR*pci counterpart.

Ref: A8.6.86 LDRT, A8.6.65 LDRBT, A8.6.77 LDRHT, A8.6.81 LDRSBT, A8.6.85 LDRSHT


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101915 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 17:28:50 +00:00
Evan Cheng
d6060a4ce9 Typo. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101914 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 17:27:38 +00:00
Devang Patel
eff666f108 Add RUN: 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101913 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 17:20:10 +00:00
Dan Gohman
92884f7ee5 Sink the CopyToExportRegsIfNeeded calls out of SelectionDAGISel 
into SelectionDAGBuilder. This avoids a separate pass over the
instructions, and has the side effect of providing debug location
information to the copy.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101906 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 15:03:56 +00:00