OSDN Git Service
Tanya Lattner [Thu, 14 Feb 2008 07:57:12 +0000 (07:57 +0000)]
Remove llvm-upgrade
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47119
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Nate Begeman [Thu, 14 Feb 2008 07:39:30 +0000 (07:39 +0000)]
Support a new type of MachineOperand, MO_FPImmediate, used for holding
FP Immediates, crazily enough
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47117
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Chris Lattner [Thu, 14 Feb 2008 07:39:01 +0000 (07:39 +0000)]
simplify code, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47116
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Nate Begeman [Thu, 14 Feb 2008 07:25:46 +0000 (07:25 +0000)]
Move some useful operands up into the all-targets .td
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47115
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Nate Begeman [Thu, 14 Feb 2008 07:23:11 +0000 (07:23 +0000)]
Nuke dead comment
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47114
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Nick Lewycky [Thu, 14 Feb 2008 07:15:11 +0000 (07:15 +0000)]
Testcase for PR2032.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47113
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Nick Lewycky [Thu, 14 Feb 2008 07:11:24 +0000 (07:11 +0000)]
Fix PR2032. Inform the alias analysis of changes to the underlying program.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47111
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Tanya Lattner [Thu, 14 Feb 2008 06:56:27 +0000 (06:56 +0000)]
Remove llvm-upgrade.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47110
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Chris Lattner [Thu, 14 Feb 2008 06:19:02 +0000 (06:19 +0000)]
upgrade some entries, remove stuff that is done.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47109
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Chris Lattner [Thu, 14 Feb 2008 05:43:18 +0000 (05:43 +0000)]
the mid-level optimizer removes this stuff.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47108
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Chris Lattner [Thu, 14 Feb 2008 05:41:38 +0000 (05:41 +0000)]
this one is easy.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47107
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Chris Lattner [Thu, 14 Feb 2008 05:39:46 +0000 (05:39 +0000)]
This readme entry is done, testcase here: CodeGen/X86/zero-remat.ll
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47106
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Nick Lewycky [Thu, 14 Feb 2008 05:01:46 +0000 (05:01 +0000)]
PR2027, Fix bugpoint's -find-bugs option, clean up the code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47105
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Evan Cheng [Thu, 14 Feb 2008 01:32:53 +0000 (01:32 +0000)]
Fix test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47102
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Dan Gohman [Wed, 13 Feb 2008 23:13:32 +0000 (23:13 +0000)]
Allow the APInt form of ComputeMaskedBits to operate on i128 types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47101
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Dan Gohman [Wed, 13 Feb 2008 23:07:24 +0000 (23:07 +0000)]
Assigning an APInt to 0 with plain assignment gives it a one-bit
size. Initialize these APInts to properly-sized zero values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47099
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Dan Gohman [Wed, 13 Feb 2008 22:43:25 +0000 (22:43 +0000)]
Avoid setting bits that aren't demanded.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47098
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Dan Gohman [Wed, 13 Feb 2008 22:32:12 +0000 (22:32 +0000)]
Fix a typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47097
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Dan Gohman [Wed, 13 Feb 2008 22:28:48 +0000 (22:28 +0000)]
Simplify some logic in ComputeMaskedBits. And change ComputeMaskedBits
to pass the mask APInt by value, not by reference.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47096
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Devang Patel [Wed, 13 Feb 2008 22:23:07 +0000 (22:23 +0000)]
A loop latch phi node may have uses inside loop, not just in loop header.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47093
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Dan Gohman [Wed, 13 Feb 2008 22:09:18 +0000 (22:09 +0000)]
Rename APInt's isPositive to isNonNegative, to reflect what it
actually does.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47090
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Devang Patel [Wed, 13 Feb 2008 22:06:36 +0000 (22:06 +0000)]
While moving exit condition, do not drop loop latch on the floor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47089
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Dan Gohman [Wed, 13 Feb 2008 21:11:05 +0000 (21:11 +0000)]
Add countTrailingOnes member functions to APInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47086
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Dan Gohman [Wed, 13 Feb 2008 20:56:53 +0000 (20:56 +0000)]
Fix a typo in a comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47085
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Dan Gohman [Wed, 13 Feb 2008 20:54:54 +0000 (20:54 +0000)]
Add count{Leading,Trailing}Ones_{32,64} functions with simple implementations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47084
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Devang Patel [Wed, 13 Feb 2008 19:48:48 +0000 (19:48 +0000)]
Keep track of exit value operand number when operands are swapped.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47082
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Nicolas Geoffray [Wed, 13 Feb 2008 18:39:37 +0000 (18:39 +0000)]
Enable exception handling int JIT
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47079
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Dale Johannesen [Wed, 13 Feb 2008 18:36:48 +0000 (18:36 +0000)]
New test, see comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47078
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Duncan Sands [Wed, 13 Feb 2008 18:01:53 +0000 (18:01 +0000)]
Teach LegalizeTypes how to expand and promote CTLZ,
CTTZ and CTPOP. The expansion code differs from
that in LegalizeDAG in that it chooses to take the
CTLZ/CTTZ count from the Hi/Lo part depending on
whether the Hi/Lo value is zero, not on whether
CTLZ/CTTZ of Hi/Lo returned 32 (or whatever the
width of the type is) for it. I made this change
because the optimizers may well know that Hi/Lo
is zero and exploit it. The promotion code for
CTTZ also differs from that in LegalizeDAG: it
uses an "or" to get the right result when the
original value is zero, rather than using a compare
and select. This also means the value doesn't
need to be zero extended.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47075
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Chris Lattner [Wed, 13 Feb 2008 17:50:24 +0000 (17:50 +0000)]
gcc 3.2.3 is also bad.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47073
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Chris Lattner [Wed, 13 Feb 2008 17:24:14 +0000 (17:24 +0000)]
Fix the PPC JIT regressions by encoding zeroreg as 0 for BLR.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47067
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Chris Lattner [Wed, 13 Feb 2008 17:18:26 +0000 (17:18 +0000)]
remove some dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47066
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Devang Patel [Wed, 13 Feb 2008 17:11:39 +0000 (17:11 +0000)]
Remove use of ltdl
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47065
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Duncan Sands [Wed, 13 Feb 2008 16:46:10 +0000 (16:46 +0000)]
Add notes on Ada compilers that can be used for
the build. Put all items that the user should
specify in bold. Make it a debug build.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47063
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Wojciech Matyjewicz [Wed, 13 Feb 2008 12:21:32 +0000 (12:21 +0000)]
Fix typo. Thanks to Duncan for noticing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47062
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Wojciech Matyjewicz [Wed, 13 Feb 2008 11:51:34 +0000 (11:51 +0000)]
Add comments as per review feedback.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47061
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Evan Cheng [Wed, 13 Feb 2008 09:56:03 +0000 (09:56 +0000)]
Some code clean up.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47060
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Evan Cheng [Wed, 13 Feb 2008 09:18:16 +0000 (09:18 +0000)]
Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47059
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Evan Cheng [Wed, 13 Feb 2008 09:13:21 +0000 (09:13 +0000)]
Simplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47058
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Evan Cheng [Wed, 13 Feb 2008 09:06:18 +0000 (09:06 +0000)]
Fix a potential serious problem where kills belonging to the val# defined by a two-address instruction is also on the val# that defines the input.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47057
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Evan Cheng [Wed, 13 Feb 2008 08:41:08 +0000 (08:41 +0000)]
* Cannot safely commute an instruction there are other defs which can reach its uses.
* Ignore copy instructions which have already been coalesced.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47056
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Eli Friedman [Wed, 13 Feb 2008 07:56:04 +0000 (07:56 +0000)]
Add a note pointing to PR1996.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47055
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Chris Lattner [Wed, 13 Feb 2008 07:39:09 +0000 (07:39 +0000)]
In SDISel, for targets that support FORMAL_ARGUMENTS nodes, lower this
node as soon as we create it in SDISel. Previously we would lower it in
legalize. The problem with this is that it only exposes the argument
loads implied by FORMAL_ARGUMENTs after legalize, so that only dag combine 2
can hack on them. This causes us to miss some optimizations because
datatype expansion also happens here.
Exposing the loads early allows us to do optimizations on them. For example
we now compile arg-cast.ll to:
_foo:
movl $
2147483647, %eax
andl 8(%esp), %eax
ret
where we previously produced:
_foo:
subl $12, %esp
movsd 16(%esp), %xmm0
movsd %xmm0, (%esp)
movl $
2147483647, %eax
andl 4(%esp), %eax
addl $12, %esp
ret
It might also make sense to do this for ISD::CALL nodes, which have implicit
stores on many targets.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47054
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Chris Lattner [Wed, 13 Feb 2008 07:35:30 +0000 (07:35 +0000)]
don't try to avoid inserting loads when lowering FORMAL_ARGUMENTS.
DAGCombine is now quite good at zapifying them.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47053
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Chris Lattner [Wed, 13 Feb 2008 07:25:05 +0000 (07:25 +0000)]
teach dag combiner how to eliminate MERGE_VALUES nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47052
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Nate Begeman [Wed, 13 Feb 2008 07:06:12 +0000 (07:06 +0000)]
readme updates
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47051
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Eli Friedman [Wed, 13 Feb 2008 06:55:57 +0000 (06:55 +0000)]
Add test for PR1996. (This is my first time adding a test for a
transform, so please review.)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47050
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Nate Begeman [Wed, 13 Feb 2008 06:48:40 +0000 (06:48 +0000)]
Add testcase for recent legalizer change
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47049
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Nate Begeman [Wed, 13 Feb 2008 06:43:04 +0000 (06:43 +0000)]
Support legalizing insert_vector_elt on targets where the element
type is not legal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47048
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Evan Cheng [Wed, 13 Feb 2008 03:23:53 +0000 (03:23 +0000)]
New tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47047
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Evan Cheng [Wed, 13 Feb 2008 03:01:43 +0000 (03:01 +0000)]
Initial support for copy elimination by commuting its definition MI.
PR1877.
A3 = op A2 B0<kill>
...
B1 = A3 <- this copy
...
= op A3 <- more uses
==>
B2 = op B0 A2<kill>
...
B1 = B2 <- now an identify copy
...
= op B2 <- more uses
This speeds up FreeBench/neural by 29%, Olden/bh by 12%, oopack_v1p8 by 53%.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47046
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Nate Begeman [Wed, 13 Feb 2008 02:58:33 +0000 (02:58 +0000)]
Make register scavenging happy by not using a reg (CR0) that isn't defined
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47045
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Evan Cheng [Wed, 13 Feb 2008 02:48:26 +0000 (02:48 +0000)]
- Added removeValNo() to remove all live ranges of a particular value#.
- removeRange() can now update value# information.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47044
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Evan Cheng [Wed, 13 Feb 2008 02:46:49 +0000 (02:46 +0000)]
commuteInstr() can now commute non-ssa machine instrs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47043
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Evan Cheng [Wed, 13 Feb 2008 02:45:38 +0000 (02:45 +0000)]
Added debugging routine dumpUses.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47042
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Dan Gohman [Wed, 13 Feb 2008 00:35:47 +0000 (00:35 +0000)]
Convert SelectionDAG::ComputeMaskedBits to use APInt instead of uint64_t.
Add an overload that supports the uint64_t interface for use by clients
that haven't been updated yet.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47039
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Dale Johannesen [Tue, 12 Feb 2008 23:35:09 +0000 (23:35 +0000)]
__DATA not __DATA__ is the right segment name on darwin.
Spotted by Nick Kledzik.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47037
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Nate Begeman [Tue, 12 Feb 2008 22:54:40 +0000 (22:54 +0000)]
Remove some dead code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47036
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Nate Begeman [Tue, 12 Feb 2008 22:51:28 +0000 (22:51 +0000)]
SSE4.1 64b integer insert/extract pattern support
Move formats into the formats file
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47035
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Dan Gohman [Tue, 12 Feb 2008 21:47:33 +0000 (21:47 +0000)]
Change APInt::getBitsSet to accept a "half-open" range, where the
hiBit parameter marks the index one past the last desired set bit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47032
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Duncan Sands [Tue, 12 Feb 2008 21:40:21 +0000 (21:40 +0000)]
Note that these instructions are for x86-32 linux
(the only platform on which the Ada compiler even
builds).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47031
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Duncan Sands [Tue, 12 Feb 2008 21:28:39 +0000 (21:28 +0000)]
Add more spacing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47028
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Duncan Sands [Tue, 12 Feb 2008 21:22:58 +0000 (21:22 +0000)]
Add instructions for building Ada and Fortran.
Adjust mentions of gcc4 to be 4.0/4.2 agnostic.
This file should probably be renamed tor
GCCFEBuildInstrs.html...
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47027
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Owen Anderson [Tue, 12 Feb 2008 21:15:18 +0000 (21:15 +0000)]
Re-apply the patch to improve the optimizations of memcpy's, with several
bugs fixed. This now passes PPC bootstrap.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47026
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Duncan Sands [Tue, 12 Feb 2008 20:46:31 +0000 (20:46 +0000)]
Generalize getCopyFromParts and getCopyToParts to
handle arbitrary precision integers and any number
of parts. For example, on a 32 bit machine an i50
corresponds to two i32 parts. getCopyToParts will
extend the i50 to an i64 then write half of the i64
to each part; getCopyFromParts will combine the two
i32 parts into an i64 then truncate the result to
i50.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47024
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Evan Cheng [Tue, 12 Feb 2008 19:25:12 +0000 (19:25 +0000)]
Revert r46916 PPCTargetAsmInfo.cpp.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47020
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Evan Cheng [Tue, 12 Feb 2008 19:20:46 +0000 (19:20 +0000)]
Only using x86-64 rip relative addressing in non-staic mode?
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47019
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Evan Cheng [Tue, 12 Feb 2008 19:11:29 +0000 (19:11 +0000)]
Don't mask the isel bug.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47018
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Evan Cheng [Tue, 12 Feb 2008 19:11:08 +0000 (19:11 +0000)]
This test assumes no SSE4.1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47017
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Dan Gohman [Tue, 12 Feb 2008 18:52:52 +0000 (18:52 +0000)]
Add a doxygen comment for SrcValueSDNode, to make its purpose
clear and to clarify how it differs from MemOperandSDNode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47015
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Devang Patel [Tue, 12 Feb 2008 18:20:50 +0000 (18:20 +0000)]
Remove dead code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47012
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Wojciech Matyjewicz [Tue, 12 Feb 2008 15:12:40 +0000 (15:12 +0000)]
Now that ScalarEvolution::print writes to the correct stream, there is
no need to redirect stderr into stdout.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47009
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Wojciech Matyjewicz [Tue, 12 Feb 2008 15:10:35 +0000 (15:10 +0000)]
Change negative grep into positive one in my yesterday's testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47008
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Wojciech Matyjewicz [Tue, 12 Feb 2008 15:09:36 +0000 (15:09 +0000)]
Fix PR2002. Suppose n is the initial value for the induction
variable (with step 1) and m is its final value. Then, the correct trip
count is SMAX(m,n)-n. Previously, we used SMAX(0,m-n), but m-n may
overflow and can't in general be interpreted as signed.
Patch by Nick Lewycky.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47007
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Eli Friedman [Tue, 12 Feb 2008 12:08:14 +0000 (12:08 +0000)]
Fix for bug 1996: optimize out loads of undef. This code basically just
checks for a malloc/alloca immediately followed by a load.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47006
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Evan Cheng [Tue, 12 Feb 2008 07:59:55 +0000 (07:59 +0000)]
Update comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47002
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Evan Cheng [Tue, 12 Feb 2008 07:59:45 +0000 (07:59 +0000)]
Unbreak various insert_vector_elt and extract_vector_elt tests in presence of SSE4.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47001
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Tanya Lattner [Tue, 12 Feb 2008 07:46:33 +0000 (07:46 +0000)]
Test case for annotate builtin.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46999
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Evan Cheng [Tue, 12 Feb 2008 07:22:46 +0000 (07:22 +0000)]
Fix some test cases.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46998
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Bill Wendling [Tue, 12 Feb 2008 07:12:46 +0000 (07:12 +0000)]
More violation fixes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46997
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Bill Wendling [Tue, 12 Feb 2008 07:09:05 +0000 (07:09 +0000)]
Fix validation errors: di -> dt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46996
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Bill Wendling [Tue, 12 Feb 2008 07:06:19 +0000 (07:06 +0000)]
Reformatting. Adding "doc_code" divisions for code examples. Updated some
of the examples to reflect the current .TD files.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46995
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Chris Lattner [Tue, 12 Feb 2008 06:29:45 +0000 (06:29 +0000)]
rip out llvm 2.2 stuff in preparation for llvm 2.3
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46993
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Chris Lattner [Tue, 12 Feb 2008 06:07:47 +0000 (06:07 +0000)]
heavily refactor this to have less duplication between BUILD_FOR_WEBSITE mode and not.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46991
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Chris Lattner [Tue, 12 Feb 2008 05:07:12 +0000 (05:07 +0000)]
remove unknown details
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46985
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Tanya Lattner [Tue, 12 Feb 2008 02:42:55 +0000 (02:42 +0000)]
Add 2.2 release tag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46981
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Nate Begeman [Mon, 11 Feb 2008 23:47:56 +0000 (23:47 +0000)]
Stuff noticed while grepping code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46979
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Dan Gohman [Mon, 11 Feb 2008 23:45:14 +0000 (23:45 +0000)]
Correct the order of the arguments in the examples in the comments
for APInt::getBitsSet. And fix an off-by-one bug in "wrapping" mode.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46978
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Ted Kremenek [Mon, 11 Feb 2008 23:11:12 +0000 (23:11 +0000)]
The factories for ImutAVLTree/ImmutableSet/ImmutableMap now take an (optional)
BumpPtrAllocator argument to their constructors. This BumpPtrAllocator
will be used to allocate trees. If no BumpPtrAllocator is provided, one
is created (as before).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46975
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Scott Michel [Mon, 11 Feb 2008 21:05:47 +0000 (21:05 +0000)]
Added blurb for CellSPU progress
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46968
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Duncan Sands [Mon, 11 Feb 2008 20:58:28 +0000 (20:58 +0000)]
Generalize the handling of call and return arguments,
in preparation for apint support. These changes are
intended to have no functional effect.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46967
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Dan Gohman [Mon, 11 Feb 2008 19:00:34 +0000 (19:00 +0000)]
From Chris' review: use isa instead of explicitly using classof.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46964
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Dan Gohman [Mon, 11 Feb 2008 19:00:03 +0000 (19:00 +0000)]
From Chris' review: minor corrections in comments.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46963
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Dan Gohman [Mon, 11 Feb 2008 18:58:42 +0000 (18:58 +0000)]
From Chris' review: use cast instead of dyn_cast with an assert.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46962
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Dan Gohman [Mon, 11 Feb 2008 18:57:43 +0000 (18:57 +0000)]
From Chris' review: fix 80 column violations
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46961
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Dan Gohman [Mon, 11 Feb 2008 18:56:50 +0000 (18:56 +0000)]
From Chris' review: change MemOperandSDNode's constructor to pass its
argument by reference, rather than by value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46960
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Wojciech Matyjewicz [Mon, 11 Feb 2008 18:37:34 +0000 (18:37 +0000)]
If the LHS of the comparison is a loop-invariant we also want to move it
to the RHS. This simple change allows to compute loop iteration count
for loops with condition similar to the one in the testcase (which seems
to be quite common).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46959
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Ted Kremenek [Mon, 11 Feb 2008 17:24:50 +0000 (17:24 +0000)]
Added "Profile" method to APFloat for use with FoldingSet.
Added member template "Add" to FoldingSetNodeID that allows "adding" arbitrary
objects to a profile via dispatch to FoldingSetTrait<T>::Profile().
Removed FoldingSetNodeID::AddAPFloat and FoldingSetNodeID::APInt, as their
functionality is now replaced using the above mentioned member template.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46957
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Duncan Sands [Mon, 11 Feb 2008 11:09:23 +0000 (11:09 +0000)]
Add arbitrary integer support to getRegisterType and
getNumRegisters. This is needed for calling functions
with apint parameters or return values.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46956
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Wojciech Matyjewicz [Mon, 11 Feb 2008 11:03:14 +0000 (11:03 +0000)]
Fix PR1798 - an error in the evaluation of SCEVAddRecExpr at an
arbitrary iteration.
The patch:
1) changes SCEVSDivExpr into SCEVUDivExpr,
2) replaces PartialFact() function with BinomialCoefficient(); the
computations (essentially, the division) in BinomialCoefficient() are
performed with the apprioprate bitwidth necessary to avoid overflow;
unsigned division is used instead of the signed one.
Computations in BinomialCoefficient() require support from the code
generator for APInts. Currently, we use a hack rounding up the
neccessary bitwidth to the nearest power of 2. The hack is easy to turn
off in future.
One remaining issue: we assume the divisor of the binomial coefficient
formula can be computed accurately using 16 bits. It means we can handle
AddRecs of length up to 9. In future, we should use APInts to evaluate
the divisor.
Thanks to Nicholas for cooperation!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@46955
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