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Author SHA1 Message Date
Tanya Lattner
6e9bceea97 Remove llvm-upgrade 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47119 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:57:12 +00:00
Nate Begeman
e8b7ccf0c9 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:39:30 +00:00
Chris Lattner
13daadbd25 simplify code, no functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47116 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:39:01 +00:00
Nate Begeman
0fec975a18 Move some useful operands up into the all-targets .td 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47115 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:25:46 +00:00
Nate Begeman
f504eefb6e Nuke dead comment 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47114 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:23:11 +00:00
Nick Lewycky
c91b49b890 Testcase for PR2032. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47113 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:15:11 +00:00
Nick Lewycky
95f0ba2703 Fix PR2032. Inform the alias analysis of changes to the underlying program. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47111 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 07:11:24 +00:00
Tanya Lattner
dcd188d33f Remove llvm-upgrade. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47110 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 06:56:27 +00:00
Chris Lattner
eb05f90c71 upgrade some entries, remove stuff that is done. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47109 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 06:19:02 +00:00
Chris Lattner
ea1cddf546 the mid-level optimizer removes this stuff. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47108 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 05:43:18 +00:00
Chris Lattner
48b4d96949 this one is easy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47107 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 05:41:38 +00:00
Chris Lattner
8b0cb7bcc6 This readme entry is done, testcase here: CodeGen/X86/zero-remat.ll 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47106 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 05:39:46 +00:00
Nick Lewycky
1d1ef14248 PR2027, Fix bugpoint's -find-bugs option, clean up the code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47105 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 05:01:46 +00:00
Evan Cheng
5598b70a78 Fix test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47102 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-14 01:32:53 +00:00
Dan Gohman
d9fe41c0c8 Allow the APInt form of ComputeMaskedBits to operate on i128 types. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47101 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 23:13:32 +00:00
Dan Gohman
f4f92f5ebe 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 23:07:24 +00:00
Dan Gohman
72d2fd57b6 Avoid setting bits that aren't demanded. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47098 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:43:25 +00:00
Dan Gohman
cd2ad1df5d Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47097 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:32:12 +00:00
Dan Gohman
977a76fbb6 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:28:48 +00:00
Devang Patel
ea06906559 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:23:07 +00:00
Dan Gohman
7649127ec1 Rename APInt's isPositive to isNonNegative, to reflect what it 
actually does.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47090 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:09:18 +00:00
Devang Patel
23067dfeac While moving exit condition, do not drop loop latch on the floor. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47089 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 22:06:36 +00:00
Dan Gohman
42dd77f207 Add countTrailingOnes member functions to APInt. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47086 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 21:11:05 +00:00
Dan Gohman
b5cfaaedbe Fix a typo in a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47085 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 20:56:53 +00:00
Dan Gohman
ca2a0e1062 Add count{Leading,Trailing}Ones_{32,64} functions with simple implementations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47084 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 20:54:54 +00:00
Devang Patel
02c4836f3d Keep track of exit value operand number when operands are swapped. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47082 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 19:48:48 +00:00
Nicolas Geoffray
afe6c2b001 Enable exception handling int JIT 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47079 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 18:39:37 +00:00
Dale Johannesen
84ad8378ee New test, see comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47078 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 18:36:48 +00:00
Duncan Sands
d462ba8539 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 18:01:53 +00:00
Chris Lattner
82f0a09c10 gcc 3.2.3 is also bad. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47073 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 17:50:24 +00:00
Chris Lattner
a1998d1cba Fix the PPC JIT regressions by encoding zeroreg as 0 for BLR. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47067 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 17:24:14 +00:00
Chris Lattner
eedcf3fc46 remove some dead code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47066 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 17:18:26 +00:00
Devang Patel
e45252efee Remove use of ltdl 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47065 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 17:11:39 +00:00
Duncan Sands
20dcb4c24d 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 16:46:10 +00:00
Wojciech Matyjewicz
a65ee03bb2 Fix typo. Thanks to Duncan for noticing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47062 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 12:21:32 +00:00
Wojciech Matyjewicz
3a4cbe2a41 Add comments as per review feedback. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47061 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 11:51:34 +00:00
Evan Cheng
cdbcfccece Some code clean up. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47060 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 09:56:03 +00:00
Evan Cheng
b1f6f91393 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47059 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 09:18:16 +00:00
Evan Cheng
9cec00e7f1 Simplify. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47058 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 09:13:21 +00:00
Evan Cheng
e984e504b5 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 09:06:18 +00:00
Evan Cheng
e35a6d1dfb * 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 08:41:08 +00:00
Eli Friedman
35327b3e57 Add a note pointing to PR1996. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47055 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 07:56:04 +00:00
Chris Lattner
86ca3cacc5 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 07:39:09 +00:00
Chris Lattner
9f72d1a730 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 07:35:30 +00:00
Chris Lattner
fec42eb6da teach dag combiner how to eliminate MERGE_VALUES nodes. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47052 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 07:25:05 +00:00
Nate Begeman
b5041b3085 readme updates 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47051 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 07:06:12 +00:00
Eli Friedman
261c704da1 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 06:55:57 +00:00
Nate Begeman
5e1dd5597e Add testcase for recent legalizer change 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47049 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 06:48:40 +00:00
Nate Begeman
0325d90348 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 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 06:43:04 +00:00
Evan Cheng
b2e72b0feb New tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47047 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-13 03:23:53 +00:00