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4c71dfe356
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21852 Commits

Author SHA1 Message Date
Anton Korobeynikov
4c71dfe356 Update gcc 4.3 warnings fix patch with recent head changes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47368 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:10:28 +00:00
Anton Korobeynikov
ae9f3a3b7c Unbreak build with gcc 4.3: provide missed includes and silence most annoying warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47367 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 11:08:44 +00:00
Bill Wendling
6d794746b7 Added some comments and reformatted others. No functionality change. 
Added two "FIXMEs" for code that looks dubious to me (but I could be
wrong).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47366 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 09:15:16 +00:00
Owen Anderson
61d30a821f When performing return slot optimization, remember to inform memdep when we're removing the memcpy. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47364 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 08:23:02 +00:00
Evan Cheng
8647bcd5de Added memmove to interpreter external functions list. Patch by Daniel Dunbar. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47363 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 07:55:26 +00:00
Bill Wendling
420cdebbcb More constification of things. More comments added. No functionality 
changes. (Sorry for any formatting changes that creeped in.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47362 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 07:36:31 +00:00
Nick Lewycky
178f20a685 Use getConstant for ConstantInts. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47361 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 06:58:55 +00:00
Nick Lewycky
3e63076980 Add 'umax' similar to 'smax' SCEV. Closes PR2003. 
Parse reversed smax and umax as smin and umin and express them with negative
or binary-not SCEVs (which are really just subtract under the hood).

Parse 'xor %x, -1' as (-1 - %x).

Remove dead code (ConstantInt::get always returns a ConstantInt).

Don't use getIntegerSCEV(-1, Ty). The first value is an int, then it gets
passed into a uint64_t. Instead, create the -1 directly from
ConstantInt::getAllOnesValue().


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47360 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 06:48:22 +00:00
Chris Lattner
19fc1d3742 Fix an incredibly subtle bug exposed by Ted's change to APInt profiling. 
AddNodeIDNode does profiling for a ConstantSDNode, but so does 
SelectionDAG::getConstant.  This profiling should be moved to a common
static function in ConstantSDNode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47359 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 06:28:01 +00:00
Bill Wendling
90a3868fe5 No functionality change: 
- Constified some MachineOperand values.
 - Added/Modified some comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47358 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 06:10:21 +00:00
Evan Cheng
79964fdbaf Disable for now. This is pessimizing code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47354 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-20 02:29:17 +00:00
Dale Johannesen
6167c3fcda Add Alignment field to ParameterAttributes and 
treat more or less rationally in interface
functions, subject to change.  No functional change.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47352 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 23:51:49 +00:00
Evan Cheng
e9c608d6cc Add hidden option -x86-fold-and-in-test to test the effect the test / and folding change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47351 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 23:36:51 +00:00
Devang Patel
5a97097e56 regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47350 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 22:27:01 +00:00
Devang Patel
d6ffcf9117 Parse 
%b = getresult {i32, i32} %a, i32 1


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47349 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 22:26:37 +00:00
Devang Patel
40a04216da Add GetResultInst. First step for multiple return value support. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47348 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 22:15:16 +00:00
Dale Johannesen
222ebf70b7 Generated files for checkin 47342. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47344 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 21:40:51 +00:00
Dale Johannesen
ab0789c616 Forgot a file, goes with 47342. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47343 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 21:40:10 +00:00
Dale Johannesen
0d51e7ec0d Expand ParameterAttributes to 32 bits (in preparation 
for adding alignment info, not there yet).  Clean up
interfaces to reference ParameterAttributes consistently.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47342 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 21:38:47 +00:00
Ted Kremenek
a795aca96a Fixed bug in APInt::Profile() where the BitWidth field was not included in the 
profile of the APSInt object. This caused unexpected Profile collisions where
none should have occurred.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47338 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 20:50:41 +00:00
Andrew Lenharth
86532db5d7 fix some byval problems in the cbe. Closes PR2065 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47337 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 19:47:54 +00:00
Chris Lattner
f27dfcb210 random cleanups. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47334 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 18:49:08 +00:00
Chris Lattner
ce2bcc8839 Don't fold and's into test instructions if they have multiple uses. 
This compiles test-nofold.ll into:

_test:
	movl	$15, %ecx
	andl	4(%esp), %ecx
	testl	%ecx, %ecx
	movl	$42, %eax
	cmove	%ecx, %eax
	ret

instead of:
_test:
	movl	4(%esp), %eax
	movl	%eax, %ecx
	andl	$15, %ecx
	testl	$15, %eax
	movl	$42, %eax
	cmove	%ecx, %eax
	ret



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47330 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 17:37:35 +00:00
Duncan Sands
ec5ec88d15 Fix a compiler warning. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47328 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 09:28:48 +00:00
Chris Lattner
75542bd56b remove the LowerSelect pass. The last client was the old Sparc backend, which is long dead by now. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47323 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 07:49:17 +00:00
Chris Lattner
15f166c7b6 remove the lower packed pass. It can never work and even the parts that 
could work don't work fully.  This fixes PR1705.  Oh yeah, we don't have
packed types anymore either ;-)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47322 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 07:39:17 +00:00
Owen Anderson
967552e7ec Refactor this method a bit, and correct a test that was completely wrong but happened to work out anyways. :-) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47321 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 07:07:51 +00:00
Chris Lattner
e42ce73c37 isa+cast -> dyncast. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47320 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 06:53:20 +00:00
Chris Lattner
0a76a621a4 simplify this code again, try 2 :) 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47319 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 06:52:38 +00:00
Owen Anderson
9cffa9a6ed Fix a comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47318 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 06:51:23 +00:00
Owen Anderson
851bfff50f In addition to arguments passed to it, memcpy (and all other calls) can ModRef pointers that alias their arguments as well. This fixes PR2057. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47317 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 06:47:18 +00:00
Owen Anderson
61c24e96b1 Major improvements to yesterday's return slot optimization. Remove some unneccessary constraints, 
and add some others that should have been in from the first place.  Document the whole thing better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47315 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 06:35:43 +00:00
Chris Lattner
46acf85b97 Fix some minor issues folding undef, PR2052 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47314 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 06:22:12 +00:00
Chris Lattner
50b2ca4c73 fdiv/frem of undef can produce undef, because the undef operand 
can be a SNaN.  We could be more aggressive and turn this into 
unreachable, but that is less nice, and not really worth it.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47313 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 06:12:18 +00:00
Chris Lattner
389056110f regenerate 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47312 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 04:36:25 +00:00
Chris Lattner
689e8b294e Fix PR2060 by rejecting invalid types for integer constants. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47311 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 04:36:07 +00:00
Owen Anderson
fa113f8155 Factor the profitability check for return slot optimization out into a static function. 
At some point in the future, this check will become smarter.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47310 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 03:27:34 +00:00
Owen Anderson
c0755a6f98 An sret parameter is required to be the first parameter, so there's no need to loop 
over all the parameters of the callee looking for it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47309 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 03:15:29 +00:00
Owen Anderson
7acc0af95a Cleanup some of my patches from yesterday. Refactor the check for which xform 
to apply to a memcpy into processInstruction.  Also, fix a bug in the check due to
missing braces.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47307 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 03:09:45 +00:00
Owen Anderson
c2580ab9b0 Fix Transforms/GVN/memcpy.ll, which Chris broke in r47275 by reordering the branches. memcpy's are a kind of CallInst. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47305 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 02:53:23 +00:00
Evan Cheng
31886dbe37 PR1909: Tail merging pass ran wild. It makes no sense to merge blocks in order to save a single instruction since a branch will be inserted for each BB. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47301 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 02:09:37 +00:00
Evan Cheng
422cba6ed0 Me not like duplicated comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47300 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-19 02:05:16 +00:00
Evan Cheng
efec751a1b - When DAG combiner is folding a bit convert into a BUILD_VECTOR, it should check if it's essentially a SCALAR_TO_VECTOR. Avoid turning (v8i16) <10, u, u, u> to <10, 0, u, u, u, u, u, u>. Instead, simply convert it to a SCALAR_TO_VECTOR of the proper type. 
- X86 now normalize SCALAR_TO_VECTOR to (BIT_CONVERT (v4i32 SCALAR_TO_VECTOR)). Get rid of X86ISD::S2VEC.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47290 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 23:04:32 +00:00
Nick Lewycky
e0cfecf47d Correctly fold divide-by-constant, even when faced with overflow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47287 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 22:48:05 +00:00
Dan Gohman
b00ee21f21 Chris pointed out that it's not necessary to set i64 MUL to Expand 
on x86-32 since i64 itself is not a Legal type. And, update some
comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47282 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 19:34:53 +00:00
Evan Cheng
a9407f5937 - Remove the previous check which broke coalescer-commute3.ll 
- For now, conservatively ignore copy MI whose source is a physical register. Commuting its def MI can cause a physical register live interval to be live through a loop (since we know it's live coming into the def MI).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47281 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 18:56:31 +00:00
Chris Lattner
7c4e9a44a4 upgrade some tests. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47280 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 18:46:39 +00:00
Nate Begeman
e9fe65c973 Add a note 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47279 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 18:39:23 +00:00
Chris Lattner
92b416f64e Add a note about sext from i1 plus flags use. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47278 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 18:30:13 +00:00
Dan Gohman
339ffedca9 Don't mark scalar integer multiplication as Expand on x86, since x86 
has plain one-result scalar integer multiplication instructions.
This avoids expanding such instructions into MUL_LOHI sequences that
must be special-cased at isel time, and avoids the problem with that
code that provented memory operands from being folded.

This fixes PR1874, addressesing the most common case. The uncommon
cases of optimizing multiply-high operations will require work
in DAGCombiner.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47277 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-02-18 17:55:26 +00:00