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Author SHA1 Message Date
Dan Gohman
c7749b747e Permit ChangeCompareStride to rewrite a comparison when the factor 
between the comparison's iv stride and the candidate stride is
exactly -1.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70244 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 20:35:32 +00:00
Jeffrey Yasskin
487fa01673 Add tests for WeakVH and AssertingVH. These pointed out that the overloads for 
the comparison operators were not only unnecessary in the presence of the
implicit conversion; they caused ambiguous overload errors. So I deleted them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70243 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 20:32:07 +00:00
Dan Gohman
01ecca20bf Teach getZeroExtendExpr and getSignExtendExpr to use trip-count 
information to simplify [sz]ext({a,+,b}) to {zext(a),+,[zs]ext(b)},
as appropriate.

These functions and the trip count code each call into the other, so
this requires careful handling to avoid infinite recursion. During
the initial trip count computation, conservative SCEVs are used,
which are subsequently discarded once the trip count is actually
known.

Among other benefits, this change lets LSR automatically eliminate
some unnecessary zext-inreg and sext-inreg operation where the
operand is an induction variable.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70241 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 20:16:15 +00:00
Chris Lattner
0370cc6399 give bitstreamreader an API to ignore names for blocks/records, 
only llvm-bcanalyzer wants this info.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70239 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 20:04:08 +00:00
Owen Anderson
82fd3f3d3a Don't skip the CopyMI when removing kill markers. 
This should have no effect on generated code, but makes the intermediate state
of the coalescer more sane.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70238 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 19:55:47 +00:00
Duncan Sands
9771b91c2b Now that PR2957 is resolved, remove a bunch of 
no-longer needed workarounds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70234 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 19:33:03 +00:00
Dale Johannesen
48c255d7f8 Test for (llvm-gcc) 70231. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70233 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 19:15:09 +00:00
Nate Begeman
5f96943e01 Revert accidental testcase reduction 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70226 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 18:42:40 +00:00
Nate Begeman
9008ca6b6b 2nd attempt, fixing SSE4.1 issues and implementing feedback from duncan. 
PR2957

ISD::VECTOR_SHUFFLE now stores an array of integers representing the shuffle
mask internal to the node, rather than taking a BUILD_VECTOR of ConstantSDNodes
as the shuffle mask.  A value of -1 represents UNDEF.

In addition to eliminating the creation of illegal BUILD_VECTORS just to 
represent shuffle masks, we are better about canonicalizing the shuffle mask,
resulting in substantially better code for some classes of shuffles.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70225 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 18:41:29 +00:00
Chris Lattner
c167cac8f0 Print statistics for each record kind saying the number of bits 
and % abbreviated.  For example:

	Record Histogram:
		  Count    # Bits   % Abv  Record Kind
		  25738   3424174  100.00  SM_SLOC_INSTANTIATION_ENTRY
		    814    562079  100.00  SM_SLOC_FILE_ENTRY
		    798     34110          SM_HEADER_FILE_INFO
		      3     91104  100.00  SM_SLOC_BUFFER_BLOB
		      3       498  100.00  SM_SLOC_BUFFER_ENTRY
		      1       465          SM_LINE_TABLE



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70215 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 18:15:27 +00:00
Chris Lattner
2443747e45 clean up the output of llvm-bcanalyzer by using printf 
instead of ostreams for formatting.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70214 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 17:59:34 +00:00
Evan Cheng
d521bc983b Fix PR4056. It's possible a physical register def is dead if its implicit use is deleted by two-address pass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70213 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 17:36:47 +00:00
Evan Cheng
27e4666c20 Also delete last unused val#. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70212 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 17:35:19 +00:00
Dan Gohman
4af325d1b4 Rename GR8_ABCD to GR8_ABCD_L and create GR8_ABCD_H, and use these 
to precisely describe the h-register subreg register classes.
Thanks to Jakob Stoklund Olesen for spotting this and for the
initial patch!

Also, make getStoreRegOpcode and getLoadRegOpcode aware of the
needs of h registers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70211 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 16:41:36 +00:00
Dan Gohman
6241762c5a Rename GR8_, GR16_, GR32_, and GR64_ to GR8_ABCD, GR16_ABCD, 
GR32_ABCD, and GR64_ABCD, respectively, to help describe them.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70210 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 16:33:14 +00:00
Dan Gohman
4d47b9bcb9 Break up long multi-mnemonic strings into separate lines for readability. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70209 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 15:13:28 +00:00
Dan Gohman
f45728dae3 Fix the syntax for a PR number in a test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70208 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 15:08:34 +00:00
Duncan Sands
f044cff0a4 Fix some confusion in the Ada f-e build instructions between 
building without optimization and building with checking.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70205 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 11:21:35 +00:00
Mon P Wang
a7e01d7efd Revised 68749 to allow matching of load/stores for address spaces < 256. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70197 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 07:22:10 +00:00
Nick Lewycky
e2bcf13be5 Under unusual circumstances (jitting a function that causes the creation of 
another stub, but then never calling the jitted function) can cause the JIT to
leave a stub in place. Judging by the comments this is a known deficiency, so
we're just not going to use AssertingVH for the StubToFunctionTy map.

Also shorten some lines longer than 80 columns.

This fixes the "make check" failure with ocaml on x86-64 linux.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70185 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 05:09:44 +00:00
Sanjiv Gupta
23c70f44e4 Now that any size of integer indices are allowed for sequential types, remove the unneccessary gyan about promoting them. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70181 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 03:21:00 +00:00
Dan Gohman
fa6c716842 Make this test slightly more strict. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70180 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 03:05:26 +00:00
Dan Gohman
c7b3444095 When transforming sext(trunc(load(x))) into sext(smaller load(x)), 
the trunc is directly replaced with the smaller load, so don't
try to create a new sext node. This fixes PR4050.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70179 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 02:00:55 +00:00
Dan Gohman
d6c329532b Handle ands with ~0 correctly too. This fixes PR4052. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70176 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 01:41:10 +00:00
Dan Gohman
0324205bbb Improve bugpoint's error messages when it runs out of memory, 
or when some other std::exception is thrown.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70175 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-27 01:30:37 +00:00
Chris Lattner
f9a3ec86c1 Add two new record types to the blockinfo block: 
BLOCKNAME and SETRECORDNAME.  This allows a bitcode
file to be self describing with pretty names for 
records and blocks in addition to numbers.  This
enhances llvm-bcanalyzer to use this to print prettily.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70165 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-26 22:21:57 +00:00
Chris Lattner
7919b966a8 make BitstreamCursor's copyable and assignable. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70159 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-26 21:07:02 +00:00
Chris Lattner
962dde3cef Make a major API change to BitstreamReader: split all the reading 
state out of the BitstreamReader class into a BitstreamCursor class.
Doing this allows the client to have multiple cursors into the same
file, each with potentially different live block stacks and
abbreviation records.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70157 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-26 20:59:02 +00:00
Bill Wendling
3485d25a0e I cast, therefore I think I know what I'm doing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70151 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-26 20:12:38 +00:00
Bill Wendling
b14a495c36 Use uint64_t instead of unsigned. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70148 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-26 19:46:41 +00:00
Chris Lattner
1e8db00e3b revert an incorrect patch. This causes crashes all over the place on a 
64-bit build.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70147 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-26 19:44:20 +00:00
Bill Wendling
610cb31ac9 Suppress warnings about conversion shortening 64-bit to 32-bit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70138 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-26 18:10:20 +00:00
Sanjiv Gupta
9341c808ae Any size of integral indices are allowed in gep for indexing into sequential types. Also adding a test case to check the indices type allowed into struct. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70134 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-26 17:14:35 +00:00
Chris Lattner
efdb3bc8d0 improve documentation on build configurations, patch by 
Josef Eisl!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70087 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 22:24:49 +00:00
Chris Lattner
b5fbb06e32 add testcase for strange types of gep indices 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70085 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 22:20:49 +00:00
Chris Lattner
096fd7b5a7 Add a new TypeBuilder helper class, which eases making LLVM IR types. 
Patch by Jeffrey Yasskin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70084 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 22:14:04 +00:00
Chris Lattner
552672d285 improve documentation around memory lifetimes, 
patch by Jeffrey Yasskin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70083 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 22:10:06 +00:00
Chris Lattner
069429062d aDd support for building a subset of the llvm tools, patch by Jeffrey Yasskin! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70082 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 22:08:52 +00:00
Chris Lattner
040f758e3a testcase and asmparser fix for PR4066 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70080 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 21:26:00 +00:00
Chris Lattner
a2165ed6ee Allow aliasee to be a GEP or bitcast instead of just a bitcast. 
The real fix for this whole mess is to require the operand of the
alias to be a *GlobalValue* (not a general constant, including 
constant exprs) but allow the operand and the alias type to be
unrelated.

This fixes PR4066


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70079 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 21:23:19 +00:00
Chris Lattner
4f4365eb4e Update docs to not mention gcse/loadvn and mention memdep and 
new stuff.  PR3924.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70077 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 21:11:37 +00:00
Bill Wendling
c2dbff3ba6 Use intptr_t. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70076 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 21:06:53 +00:00
Mon P Wang
8d34844bff size() should return a size_t; avoids a warning for 64 bit machines. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70072 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 20:46:59 +00:00
Evan Cheng
a4b2bab233 Reuse unused val#'s to avoid running out of memory in extreme cases. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70069 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 20:20:15 +00:00
Chris Lattner
11d8fb9609 DenseMap.h needs <new> because it explicitly calls operator new/delete. 
Patch by John McCall!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70068 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 19:50:14 +00:00
Chris Lattner
38300e91f5 Fix PR4040: APInt's string constructor is too strict 
patch by Jeff Yasskin!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70058 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 18:34:04 +00:00
Chris Lattner
bc58322d6a add support for detecting process features on win64, patch by 
Nicolas Capens!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70057 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 18:27:23 +00:00
Dan Gohman
2bee0afb7d Refactor the code to grab the low and high parts of a value 
using EXTRACT_ELEMENT into a utility function.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70056 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 17:55:53 +00:00
Dan Gohman
2fe4d0aacb Return null instead of false, as appropriate. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70054 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 17:28:45 +00:00
Dan Gohman
1c8491ecc7 Add several more icmp simplifications. Transform signed comparisons 
into unsigned ones when the operands are known to have the same
sign bit value.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@70053 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-04-25 17:12:48 +00:00