Commit Graph

59111 Commits

Author SHA1 Message Date
Chris Lattner
e27e02b1a4 From Kalle Raiskila:
"the bigstack patch for SPU, with testcase. It is essentially the patch committed as 97091, and reverted as 97099, but with the following additions:
-in vararg handling, registers are marked to be live, to not confuse the register scavenger
-function prologue and epilogue are not emitted, if the stack size is 16. 16 means it is empty - there is only the register scavenger emergency spill slot, which is not used as there is no stack."



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99819 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 17:38:47 +00:00
Chris Lattner
d7ba0f2ade add support for zero initialized unions, patch by Tim Northover!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99818 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 17:36:02 +00:00
Devang Patel
553881bddc Refactor code to push DILocation prcessing into DwarfDebug.cpp from AsmPrinter.cpp.
This is same as r99772 (which was reverted) with just one meaningful difference where two source lines exchanged their positions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99816 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 17:20:31 +00:00
Chris Lattner
f283e40b6a add a note.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99815 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 17:02:02 +00:00
Chris Lattner
283d1ceb57 Switch pattern sorting predicate from stable sort -> sort, it
doesn't need to be stable because the patterns are fully ordered.

Add a first level sort predicate that orders patterns in this
order:  1) scalar integer operations 2) scalar floating point 
3) vector int 4) vector float.  This is a trivial sort on their
top level pattern type so it is nice and transitive.  The
benefit of doing this is that simple integer operations are
much more common than insane vector things and isel was trying
to match the big complex vector patterns before the simple
ones because the complexity of the vector operations was much
higher.  Since they can't both match, it is best (for compile
time) to try the simple integer ones first.

This cuts down the # failed match attempts on real code by
quite a bit, for example, this reduces backtracks on crafty
(as a random example) from 228285 -> 188369.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99797 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 02:02:45 +00:00
Chris Lattner
4810736134 revert 99795, as mentioned, it is disabled anyway.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99796 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 01:58:15 +00:00
Chris Lattner
a0401249e8 Check in a (disabled) failed attempt to improve the ordering of
patterns within the generated matcher.  This works great except
that the sort fails because the relation defined isn't 
transitive.  I have a much simpler solution coming next, but want
to archive the code.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99795 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 01:56:19 +00:00
Chris Lattner
48e86dbe29 print the complexity of the pattern being matched in the
comment in the generated table.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99794 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 01:40:38 +00:00
Johnny Chen
79c4d820b4 Add NVTBLFrm to represent A8.6.406 VTBL, VTBX Vector Table Lookup Instructions.
These instructions use byte index in a control vector (M:Vm) to lookup byte
values in a table and generate a new vector (D:Vd).  The table is specified via
a list of vectors, which can be:

{Dn}
{Dn D<n+1>}
{Dn D<n+1> D<n+2>}
{Dn D<n+1> D<n+2> D<n+3>}

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99789 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-29 01:14:22 +00:00
Devang Patel
de9b1efbe5 Revert 99772.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99778 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 21:23:37 +00:00
Chris Lattner
bed993d8a4 add a statistic for the # times isel has to backtrack.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99774 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 19:46:56 +00:00
Devang Patel
c7eae5ca4a Refactoring. Push DILocation processing in to DwarfDebug from AsmPrinter.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99772 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 18:57:09 +00:00
Chris Lattner
dc7500bbaf zap an extra line that Eli noticed!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99770 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 18:52:28 +00:00
Anton Korobeynikov
81244298ea Properly quote the quotes :) during cmdline construction on Windows.
Otherwise, e.g. in the invocation like clang -DFOO=\"bar\" FOO macro
got the bar value, not "bar".

Patch by Alexander Esilevich!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99763 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 15:07:02 +00:00
Torok Edwin
b4bc96317a Fix use-of-uninitialized value when RWX memory can't be allocated (PR6701).
SELinux doesn't allow 'execmem', returning MAP_FAILED and 'Permission denied'
for mmap or RWX memory. In this case AllocateRWX was returning a MemoryBlock
with uninitialized fields, which sometimes caused crashes.

This patch initializes MemoryBlock fields to 0, so that the RWX-failure check
works.
It doesn't fix the SELinux 'execmem' issues though (the JIT will not work when
SELinux is in enforcing mode).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99762 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 11:07:36 +00:00
Chris Lattner
2a22cdc716 improve type checking of SDNode operand count. This rejects all cases
where an incorrect number of operands is provided to an sdnode instead
of just a few cases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99761 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 08:48:47 +00:00
Chris Lattner
263bd9abe2 fix a type contradition: XCoreISD::RETSP has one argument, not zero.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99760 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 08:47:39 +00:00
Chris Lattner
caa8870fe0 finally remove the immAllOnesV_bc/immAllZerosV_bc patterns
and those derived from them.  These are obnoxious because
they were written as: PatLeaf<(bitconvert).  Not having an
argument was foiling adding better type checking for operand
count matching up with what was required (in this case,
bitconvert always requires an operand!)



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99759 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 08:43:23 +00:00
Chris Lattner
6269b6c9cb remove a pattern with no testcase that doesn't appear to be
matchable: it seems like it would always constant fold.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99758 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 08:40:48 +00:00
Chris Lattner
0a00ed98f1 fix integer negates to use the proper type for the zero vectors,
this also depends on the new "bitconvert dropping" behavior just
added to tblgen.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99757 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 08:39:10 +00:00
Chris Lattner
7a0eb91b4c teach tblgen to allow patterns like (add (i32 (bitconvert (i32 GPR))), 4),
transforming it into (add (i32 GPR), 4).  This allows us to write type
generic multi patterns and have tblgen automatically drop the bitconvert
in the case when the types align.  This allows us to fold an extra load
in the changed testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99756 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 08:38:32 +00:00
Chris Lattner
e82f336d8f fix a typo, bitconvert from node to itself isn't valid.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99755 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 08:36:45 +00:00
Chris Lattner
b26fdcb48b fix vnot matching to explicitly specify the type of the
input to be v8i8 or v16i8, which buildvectors get canonicalized to.

This allows the patterns that were previously using a bare 'vnot' to
match, before they couldn't.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99754 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 08:08:07 +00:00
Chris Lattner
e4c868ff6a fix up vnot matching, eliminating a dead pattern, correcting a couple of
patterns that would never match because of bitcast, and eliminating use
of vnot_conv.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99753 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 08:00:23 +00:00
Chris Lattner
ba47ce1244 add some nounwinds
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99752 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 07:58:37 +00:00
Chris Lattner
cf3fed0fd4 this takes an insane amount of time to run, disable it for now (PR6727)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99751 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 07:58:09 +00:00
Chris Lattner
918472a77a stop using vnot_conv
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99750 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 07:48:17 +00:00
Chris Lattner
ed52c8f5f4 revert r99743, this is saying that the repmovs instructinos have an
*input* of other type, which is the VT. 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99749 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 07:38:39 +00:00
Chris Lattner
b616c6a25d remove a bunch of dead patterns.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99748 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 07:38:00 +00:00
Chris Lattner
b775b1e20b validate that input sdnodes don't exist in an output pattern.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99747 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 06:57:56 +00:00
Chris Lattner
c217305f76 eliminate a bunch of code duplication in ParseTreePattern
by rotating it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99746 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 06:50:34 +00:00
Chris Lattner
e7700999b8 add some node definitions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99745 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 06:16:41 +00:00
Chris Lattner
c812261221 SDTCisVT<0, isVoid> is not valid, reject it.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99744 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 06:04:39 +00:00
Chris Lattner
0b5d4908dd claiming to return other is pointless.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99743 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 05:57:36 +00:00
Chris Lattner
5d9a1bce83 comply with the wishes of a fixme.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99742 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 05:55:17 +00:00
Chris Lattner
b0e483e2c4 now that (parallel) is gone and a variety of bugs in targets
are cleaned up, we can remove an old fixme.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99741 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 05:54:03 +00:00
Chris Lattner
aa4e3391c8 add an optimized form of OPC_EmitMergeInputChains for the 1, 0 and
1, 1 cases which are by-far the most frequent.  This shrinks the X86
isel table from 77014 -> 74657 bytes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99740 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 05:50:16 +00:00
Chris Lattner
856fb395e4 don't add nodes to the now-dead nodes list multiple times, this
can cause a crash on crazy situations in msp430 when morph-node-to
is disabled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99739 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 05:28:31 +00:00
Chris Lattner
a591ff53d9 Improve systemz to model cmp and ucmp nodes as returning
their flags correctly.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99738 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 05:21:52 +00:00
Chris Lattner
af8752e901 the FPCmp node returns an i32.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99737 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 05:12:57 +00:00
Chris Lattner
d486d77444 fix some modelling problems exposed by a patch I'm working on. bsr/bsf/ptest
nodes all have an EFLAGS result when made by isel lowering.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99736 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 05:07:17 +00:00
Chris Lattner
19e37cbf4f don't add flag nodes with chain results to the NowDeadNodes
list multiple times when MorphNodeTo can't be applied.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99735 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 04:54:33 +00:00
Jeffrey Yasskin
ec243474bc Oops, r98447 dropped the reference to ForwardType in the wrong place in
Type::destroy(), so it got skipped for FunctionTypes, StructTypes, and
UnionTypes.  This fixes the resulting leaks in test/Feature/opaquetypes.ll and
test/Integer/opaquetypes_bt.ll.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99732 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-28 01:03:47 +00:00
Chris Lattner
b4a52b04bd fix a long standing fixme, which required fixing a bunch of other
issues to get here.  We now trim the result type list of the
CompleteMatch or MorphNodeTo operation to be the same size as the
thing we're matching.  this means that if you match (add GPR, GPR)
with an instruction that produces a normal result and a flag that
we now trim the result in tblgen instead of having to do it 
dynamically.  This exposed a bunch of inconsistencies in result
counting that happened to be getting lucky since the days of the
old isel.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99728 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-27 20:45:15 +00:00
Chris Lattner
0d7952ed5a fix CodeGenTarget::getRegisterVTs to not return the
same vt multiple times for a register.  For example,
ECX is in 5 different i32 reg classes, just return 
1 i32 instead of 5.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99727 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-27 20:32:26 +00:00
Chris Lattner
9414ae5291 hoist some funky logic into CodeGenInstruction
from two places in CodeGenDAGPatterns.cpp, and
use it in DAGISelMatcherGen.cpp instead of using
an incorrect predicate that happened to get lucky
on our current targets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99726 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-27 20:09:24 +00:00
Chris Lattner
0be6fe7139 continue pushing tblgen's support for nodes with multiple
results forward.  We can now handle an instruction that 
produces one implicit def and one result instead of one or
the other when not at the root of the pattern.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99725 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-27 19:15:02 +00:00
Chris Lattner
a6f8693385 improve -debug-only=isel comments for cases when we don't enter a
scope due to obviously false predicate.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99723 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-27 18:54:50 +00:00
Chris Lattner
5d3569e93c fix a bug in my recent patch that increased opcode size to 2 bytes:
the index comments nested under OPC_SwitchOpcode were off by one.
This fixes the comments.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99722 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-27 18:49:33 +00:00
Chris Lattner
46475cb08e revert r99719 which is breaking the botz.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@99721 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-27 18:01:10 +00:00