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Author SHA1 Message Date
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
Dan Gohman
ba5be5c07b Don't send PHI nodes down to SelectionDAGBuilder of FastISel, since 
they end up doing nothing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101904 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 15:00:41 +00:00
Dan Gohman
e08b320f15 Document that TargetRegisterInfo::contains does not cover virtual registers. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101903 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 14:51:20 +00:00
Dan Gohman
d84e806dd4 Sink this use_empty() check into isUsedOutsideOfDefiningBlock. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101902 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 14:50:13 +00:00
Dan Gohman
c025c85352 If a PHI node somehow has debug info, propogate it to the MachineInstr PHI. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101901 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 14:48:02 +00:00
Dan Gohman
3f1403f14e Don't iterate through the whole block just to find the PHI nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101900 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 14:46:25 +00:00
Gabor Greif
a9b2313c13 use abstract accessors to CallInst 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101899 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 13:13:04 +00:00
Benjamin Kramer
eb1f4b1899 PR6880: Don't dereference CallsExternalNode if it's NULL. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101897 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 12:16:50 +00:00
Benjamin Kramer
7c43f4357d Fix -Wcast-qual warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101894 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 11:50:37 +00:00
Chris Lattner
acfb70f750 stop computing InstImpInputs, it is dead 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101881 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 06:30:25 +00:00
Chris Lattner
62bcec82b2 DAGInstruction::ImpOperands is dead after my recent tblgen work, zap it. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101880 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 06:28:43 +00:00
Chris Lattner
44e05080f8 Bill's change in r95336 broke empty aggregates embedded 
in other types.  fix this by only bumping zero-byte globals
up to a single byte if the *entire global* is zero size,
fixing PR6340.

This also fixes empty arrays etc to be handled correctly,
and only does this on subsection-via-symbols targets (aka
darwin) which is the only place where this matters.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101879 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 06:20:21 +00:00
Chris Lattner
aa2776e934 teach cellspu how to return i8 and i16 from calls, 
patch by Kalle Raiskila!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101875 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 05:36:09 +00:00
Chris Lattner
4f1f6f6342 remove a bunch of ad-hoc code to simplify instructions from 
loop unswitch, and use inst simplify instead.  It is more
powerful and less duplication.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101874 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 05:33:18 +00:00
Chris Lattner
047542669a move some select simplifications out out instcombine into 
inst simplify.  No functionality change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101873 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 05:32:14 +00:00
Chris Lattner
a78130c320 RewriteLoopBodyWithConditionConstant can end up rewriting the 
condition we're unswitching on.  In this case, don't try to
simplify the second copy of the loop which may be dead or not,
but is probably a constant now.  This fixes PR6879


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101870 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 05:09:16 +00:00
Chris Lattner
f1cfb95337 reapply 'reject forward references to functions whose type don't match' 
now that the testsuite has been updated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101866 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 04:49:11 +00:00
Dan Gohman
8b1dbebc1e Delete a redundant return statement. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101860 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 01:58:20 +00:00
Bill Wendling
86c5abb4c0 The visitXOR method can return the same SDNode. If so, we don't want to delete 
it as it's not dead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101855 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 01:25:01 +00:00
Chris Lattner
d7aba875c1 disable optimizations in this directory for MSVC9. This avoids 
an optimizer infinite loop on the file, PR6866.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101854 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 01:11:32 +00:00
Johnny Chen
3974ade503 Better error-handling for DisassembleThumb2DPModImm() with 2-reg operands where 
d==15 is considered illegal.  Return false instead of assert().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101852 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 01:01:57 +00:00
Eric Christopher
6d972fd087 Remove the palignr intrinsics now that we lower them to vector shuffles, 
shifts and null vectors. Autoupgrade these to what we'd lower them to.

Add a testcase to exercise this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101851 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:59:54 +00:00
Dan Gohman
a9056dbec1 Remove this debug output; it isn't that useful, and it's incomplete 
in the case where a basic block is split.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101850 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:56:44 +00:00
Dan Gohman
8ba3aa7f9c Sink DebugLoc handling out of SelectionDAGISel into FastISel and 
SelectionDAGBuilder, where it doesn't have to be as complicated.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101848 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:48:35 +00:00
Chris Lattner
8a39ed75ec make CallGraphNode dtor abort if a node is deleted when there are still 
references to it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101847 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:47:34 +00:00
Chris Lattner
4471136e4d make the inliner do less work for leaf functions. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101846 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:47:08 +00:00
Chris Lattner
eae220259f Fix rdar://7879828 - crash in CallGraph, a self host issue. 
Arg promotion was deleting call graph nodes that still had references
from the 'indirect' CGN.  Like the inliner, it should only delete the
function if all references are gone.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101845 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:46:50 +00:00
Dan Gohman
084751cd16 Remove MachineFunction's DefaultDebugLoc member, and make DwarfDebug.cpp 
responsible for figuring out what that's supposed to be on its own.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101844 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:37:27 +00:00
Dan Gohman
a9a3321938 Reapply the removal of SelectionDAGISel's BB, with a fix for the case 
where multiple blocks are emitted; functions which do this need to return
the new BB so that their callers can stay current.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@101843 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-04-20 00:29:35 +00:00