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Author SHA1 Message Date
Owen Anderson
c5b271072e Re-enable the newly simplified ADCE. This fixes a regression on 
Dhrystone introduced by its removal.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51669 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 08:48:21 +00:00
Owen Anderson
038a8746c9 Replace the old ADCE implementation with a new one that more simply solves 
the one case that ADCE catches that normal DCE doesn't: non-induction variable
loop computations.

This implementation handles this problem without using postdominators.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51668 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 08:45:13 +00:00
Evan Cheng
f26ffe987c Implement vector shift up / down and insert zero with ps{rl}lq / ps{rl}ldq. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51667 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 08:22:04 +00:00
Owen Anderson
cd5e6dda7e Remove debugging code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51666 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 08:15:48 +00:00
Evan Cheng
e65b9a48e3 Add nounwind. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51665 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 07:09:24 +00:00
Bill Wendling
75cf88f1fe XOR?RI instructions aren't as cheap as moves. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51664 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 03:46:36 +00:00
Gabor Greif
5e46321d66 convert more operand loops to iterator formulation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51663 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 01:59:18 +00:00
Bill Wendling
bd0879d7d9 Implement "AsCheapAsAMove" for some obviously cheap instructions: xor and the 
like.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51662 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 01:02:09 +00:00
Gabor Greif
3e93e630aa convert another operand loop to iterator formulation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51661 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-29 00:51:08 +00:00
Bill Wendling
8370d38ade Add a flag to indicate that an instruction is as cheap (or cheaper) than a move 
instruction to execute. This can be used for transformations (like two-address
conversion) to remat an instruction instead of generating a "move"
instruction. The idea is to decrease the live ranges and register pressure and
all that jazz.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51660 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 22:54:52 +00:00
Bill Wendling
a8db14796b Check the "isSafeToMove" predicate, which has a series of tests to make sure 
that it's safe to remat an instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51659 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 22:52:47 +00:00
Owen Anderson
745825f431 Remap VNInfo data as well when doing renumbering. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51658 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 22:40:08 +00:00
Owen Anderson
80b3ce65e2 Factor the numbering computation into a separate method, and add the slightest attempt at some renumbering logic, which is currently unused. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51652 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 20:54:50 +00:00
Evan Cheng
d77d4f98fb Fix PR2289: vr defined by multiple implicit_def as result of coalescing. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51648 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 17:40:10 +00:00
Evan Cheng
33d3d4ad40 Teach local register allocator to deal with landing pad MBB's. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51647 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 17:22:32 +00:00
Nate Begeman
73e4d594e7 Update some comments noticed in a recent checkin 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51644 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 16:31:36 +00:00
Chris Lattner
d4c2491ce8 Update text to point people at the right version of the tutorial for 
their release.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51638 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 06:16:08 +00:00
Chris Lattner
a935db8ea2 Implement PR2370: memmove(x,x,size) -> noop. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51636 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 05:30:41 +00:00
Chris Lattner
e5ab3355ba Add chain inputs for loads. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51635 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 04:25:57 +00:00
Chris Lattner
3f1891ca6d Fix CodeGen/Generic/2005-10-21-longlonggtu.ll on ia64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51634 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 04:14:30 +00:00
Chris Lattner
b0349bfe72 loads should get chains. THis helps but does not solve CodeGen/Generic/2003-05-27-phifcmpd.ll 
on ia64.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51633 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 04:06:52 +00:00
Chris Lattner
9b07d3d378 Fix 2006-04-28-Sign-extend-bool.ll for ia64. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51632 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 04:00:06 +00:00
Chris Lattner
aec8d823fb reindent. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51631 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 03:59:32 +00:00
Dan Gohman
c2ecdc5a26 Fix the encoding for two more "rm" instructions that were using MRMSrcReg. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51630 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 01:50:19 +00:00
Mon P Wang
bfbbd4d221 Fixed X86 encoding error CVTPS2PD and CVTPD2PS when the source operand 
is a memory location


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51626 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 00:42:27 +00:00
Nate Begeman
f7333bf4a2 Don't attempt to create VZEXT_LOAD out of an extload. This an issue where the 
code generator would do something like this:

f64 = load f32 <anyext>, f32mem
v2f64 = insertelt undef, %0, 0
v2f64 = insertelt %1, 0.0, 1

into 

v2f64 = vzext_load f32mem

which on x86 is movsd, when you really wanted a cvtss2sd/movsd pair.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51624 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 00:24:25 +00:00
Nick Kledzik
ed185d6e96 use space insted of tabs 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51623 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-28 00:06:14 +00:00
Nick Kledzik
9178a65263 fix infinite recursion if a global's initializer references the global 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51617 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 22:07:08 +00:00
Gabor Greif
1b9e1672fb Make Use::init() private, it breaks invariants, clients should assign or use set(). 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51615 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 21:29:38 +00:00
Dan Gohman
ef61af01df Use Function::getEntryBlock instead of Function::begin, for clarity. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51613 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:55:29 +00:00
Dan Gohman
b22d6ac348 Print debug output when any edge becomes executable, including 
the first visited edge.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51612 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:47:30 +00:00
Devang Patel
3b75d20c1a Add instcombine after global optimizations. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51611 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:42:44 +00:00
Dan Gohman
201694b0c6 Fix a word-o and add an explicit keyword. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51610 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:41:18 +00:00
Bill Wendling
b0f65e1348 Incorporated feedback: Check that the implicitly defined operands aren't used 
before deleting the instruction.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51609 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:40:52 +00:00
Dan Gohman
7edd009efe Tidy up whitespace in ConstantRange::print output. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51606 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:29:07 +00:00
Devang Patel
00481ed5db Use IPSCCPPass instead of IPConstantPropagationPass. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51605 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 20:18:45 +00:00
Dan Gohman
caa98d3ab9 Specify a target so that this tests tests what it's intended to test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51600 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 17:55:57 +00:00
Dan Gohman
95628cd44a Make this test independent of the target-triple; the stack alignment 
is specifically what this test depends on.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51599 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 17:44:23 +00:00
Gabor Greif
0a4fd1ab7e back out last commit: The .cpp file for a module should include its corresponding header first, even if redundant. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51598 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 17:26:02 +00:00
Matthijs Kooijman
8e1cddc11d Use an explicit llvm:: prefix in the STATISTIC macro, so STATISTIC can still be 
used when "using namespace llvm" is not in effect.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51592 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 12:41:24 +00:00
Duncan Sands
43e2a03530 Fix some constructs that gcc-4.4 warns about. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51591 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 11:50:51 +00:00
Gabor Greif
3d8710e80a prune unneeded #includes 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51590 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 11:06:03 +00:00
Gabor Greif
b9d9eba916 remove unneeded reinterpret_casts 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51589 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 11:03:29 +00:00
Gabor Greif
9a6246c734 We have the correct headers included to know that BB isa Value. No reinterpret_cast necessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51588 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 10:48:39 +00:00
Owen Anderson
9e2abd3840 Remove ADCE from the optimization pipeline. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51581 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 04:27:27 +00:00
Nick Lewycky
6918a9141e InequalityGraph::node() can create new nodes, invalidating iterators across 
the set of nodes. Fix makeEqual to handle this by creating the new node first
then iterating across them second.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51573 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-27 00:59:05 +00:00
Nick Lewycky
70ef629d46 Grammaro. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51572 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-26 22:49:36 +00:00
Gabor Greif
6c80c38160 eliminate calls to deprecated Use::init() interface 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51570 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-26 21:33:52 +00:00
Nick Lewycky
aadc6b68c7 Whoops -- forgot PR reference on this test. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51569 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-26 20:23:33 +00:00
Nick Lewycky
3978927dfa The Linux ABI emits an extra "movl %esp, %ebp" in function prologue and 
sometimes a "mov %ebp, %esp" in the epilogue.

Force these tests that rely on counting 'mov' to use i686-apple-darwin8.8.0
where they were written.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51568 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-05-26 20:18:56 +00:00