oota-llvm.git
15 years agoAdded support to LegalizeType for expanding the operands of scalar to vector
Mon P Wang [Mon, 15 Dec 2008 06:57:02 +0000 (06:57 +0000)]
Added support to LegalizeType for expanding the operands of scalar to vector
and insert vector element.  Modified extract vector element to extend the
result to match the expected promoted type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61029 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agogvn now hoists this load out of the hot non-call path.
Chris Lattner [Mon, 15 Dec 2008 06:34:48 +0000 (06:34 +0000)]
gvn now hoists this load out of the hot non-call path.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61028 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoEnable Load PRE. This teaches GVN to push partially redundant loads up the
Chris Lattner [Mon, 15 Dec 2008 05:28:29 +0000 (05:28 +0000)]
Enable Load PRE.  This teaches GVN to push partially redundant loads up the
CFG when there is exactly one predecessor where the load is not available.
This is designed to not increase code size but still eliminate partially
redundant loads.  This fires 1765 times on 403.gcc even though it doesn't
do critical edge splitting yet (the most common reason for it to fail).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61027 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoif we have a phi translation failure of the start block,
Chris Lattner [Mon, 15 Dec 2008 04:58:29 +0000 (04:58 +0000)]
if we have a phi translation failure of the start block,
return *just* a clobber of the start block, not other
random stuff as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61026 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdjust testcase to make it more stable across visitation order changes,
Chris Lattner [Mon, 15 Dec 2008 04:42:00 +0000 (04:42 +0000)]
Adjust testcase to make it more stable across visitation order changes,
unbreaking it after r61024.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61025 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoIfdef out some code that I didn't mean to enable by default yet.
Owen Anderson [Mon, 15 Dec 2008 03:52:17 +0000 (03:52 +0000)]
Ifdef out some code that I didn't mean to enable by default yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61024 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agomake GVN try to rename inputs to the resultant replaced values, which
Chris Lattner [Mon, 15 Dec 2008 03:46:38 +0000 (03:46 +0000)]
make GVN try to rename inputs to the resultant replaced values, which
cleans up the generated code a bit.  This should have the added benefit of
not randomly renaming functions/globals like my previous patch did. :)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61023 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoImplement initial support for PHI translation in memdep. This means that
Chris Lattner [Mon, 15 Dec 2008 03:35:32 +0000 (03:35 +0000)]
Implement initial support for PHI translation in memdep.  This means that
memdep keeps track of how PHIs affect the pointer in dep queries, which
allows it to eliminate the load in cases like rle-phi-translate.ll, which
basically end up being:

BB1:
   X = load P
   br BB3
BB2:
   Y = load Q
   br BB3
BB3:
   R = phi [P] [Q]
   load R

turning "load R" into a phi of X/Y.  In addition to additional exposed
opportunities, this makes memdep safe in many cases that it wasn't before
(which is required for load PRE) and also makes it substantially more
efficient.  For example, consider:

bb1:  // has many predecessors.
   P = some_operator()
   load P

In this example, previously memdep would scan all the predecessors of BB1
to see if they had something that would mustalias P.  In some cases (e.g.
test/Transforms/GVN/rle-must-alias.ll) it would actually find them and end
up eliminating something.  In many other cases though, it would scan and not
find anything useful.  MemDep now stops at a block if the pointer is defined
in that block and cannot be phi translated to predecessors.  This causes it
to miss the (rare) cases like rle-must-alias.ll, but makes it faster by not
scanning tons of stuff that is unlikely to be useful.  For example, this
speeds up GVN as a whole from 3.928s to 2.448s (60%)!.  IMO, scalar GVN
should be enhanced to simplify the rle-must-alias pointer base anyway, which
would allow the loads to be eliminated.

In the future, this should be enhanced to phi translate through geps and
bitcasts as well (as indicated by FIXMEs) making memdep even more powerful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61022 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd support for slow-path GVN with full phi construction for scalars. This is disabl...
Owen Anderson [Mon, 15 Dec 2008 02:03:00 +0000 (02:03 +0000)]
Add support for slow-path GVN with full phi construction for scalars.  This is disabled for now, as it actually pessimizes code in the abscence
of phi translation for load elimination.  This slow down GVN a bit, by about 2% on 403.gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61021 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix whitespace in comment.
Nick Lewycky [Mon, 15 Dec 2008 01:35:36 +0000 (01:35 +0000)]
Fix whitespace in comment.
Remove TODO; icmp isn't a binary operator, so this function will never deal
with them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61020 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoIntroducing nocapture, a parameter attribute for pointers to indicate that the
Nick Lewycky [Mon, 15 Dec 2008 01:34:58 +0000 (01:34 +0000)]
Introducing nocapture, a parameter attribute for pointers to indicate that the
callee will not introduce any new aliases of that pointer.

The attributes had all bits allocated already, so I decided to collapse
alignment. Alignment was previously stored as a 16-bit integer from bits 16 to
32 of the attribute, but it was required to be a power of 2. Now it's stored in
log2 encoded form in five bits from 16 to 21. That gives us 11 more bits of
space.

You may have already noticed that you only need four bits to encode a 16-bit
power of two, so why five bits? Because the AsmParser accepted 32-bit
alignments, even though we couldn't store them (they were silently discarded).
Now we can store them in memory, but not in the bitcode.

The bitcode format was already storing these as 64-bit VBR integers. So, the
bitcode format stays the same, keeping the alignment values stored as 16 bit
raw values. There's some hideous code in the reader and writer that deals with
this, waiting to be ripped out the moment we run out of bits again and have to
replace the parameter attributes table encoding.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61019 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agosilence warning when asserts disabled.
Chris Lattner [Sun, 14 Dec 2008 21:38:24 +0000 (21:38 +0000)]
silence warning when asserts disabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61014 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agosilence warning when asserts disabled.
Chris Lattner [Sun, 14 Dec 2008 21:37:33 +0000 (21:37 +0000)]
silence warning when asserts disabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61013 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoeliminate warning when asserts disabled.
Chris Lattner [Sun, 14 Dec 2008 21:36:23 +0000 (21:36 +0000)]
eliminate warning when asserts disabled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61012 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoanother random testcase that shouldn't crash gvn and is
Chris Lattner [Sun, 14 Dec 2008 21:20:46 +0000 (21:20 +0000)]
another random testcase that shouldn't crash gvn and is
good for coverage with future changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61011 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoClarify the meaning of the NoAlias response. The plan is to refer to this from
Nick Lewycky [Sun, 14 Dec 2008 21:08:48 +0000 (21:08 +0000)]
Clarify the meaning of the NoAlias response. The plan is to refer to this from
a future version of LangRef.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61010 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoGeneralize GVN's phi construciton routine to work for things other than loads.
Owen Anderson [Sun, 14 Dec 2008 19:10:35 +0000 (19:10 +0000)]
Generalize GVN's phi construciton routine to work for things other than loads.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61009 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoReapply r60997, this time without forgetting that
Duncan Sands [Sun, 14 Dec 2008 09:43:15 +0000 (09:43 +0000)]
Reapply r60997, this time without forgetting that
target constants are allowed to have an illegal
type.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61006 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFixed HTML validator warning.
Misha Brukman [Sun, 14 Dec 2008 08:01:51 +0000 (08:01 +0000)]
Fixed HTML validator warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61005 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoCSS cleanup:
Misha Brukman [Sun, 14 Dec 2008 07:20:36 +0000 (07:20 +0000)]
CSS cleanup:
* Lowercased all HTML element names
* Standardized spacing around { and }
* removed class "doc_table_nw": grep finds no uses

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61004 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoTemporarily revert r60997. It was causing this failure:
Bill Wendling [Sat, 13 Dec 2008 23:53:00 +0000 (23:53 +0000)]
Temporarily revert r60997. It was causing this failure:

Running /Users/void/llvm/llvm.src/test/CodeGen/Generic/dg.exp ...
FAIL: /Users/void/llvm/llvm.src/test/CodeGen/Generic/asm-large-immediate.ll
Failed with exit(1) at line 1
while running:  llvm-as < /Users/void/llvm/llvm.src/test/CodeGen/Generic/asm-large-immediate.ll |  llc | /usr/bin/grep 68719476738
Assertion failed: ((TypesNeedLegalizing || getTypeAction(VT) == Legal) && "Illegal type introduced after type legalization?"), function HandleOp, file /Users/void/llvm/llvm.src/lib/CodeGen/SelectionDAG/LegalizeDAG.cpp, line 493.
0   llc               0x0085392e char const* std::find<char const*, char>(char const*, char const*, char const&) + 98
1   llc               0x00853e63 llvm::sys::PrintStackTraceOnErrorSignal() + 593
2   libSystem.B.dylib 0x96cac09b _sigtramp + 43
3   libSystem.B.dylib 0xffffffff _sigtramp + 1765097359
4   libSystem.B.dylib 0x96d24ec2 raise + 26
5   libSystem.B.dylib 0x96d3447f abort + 73
6   libSystem.B.dylib 0x96d26063 __assert_rtn + 101
7   llc               0x004f9018 llvm::cast_retty<llvm::SubprogramDesc, llvm::DebugInfoDesc*>::ret_type llvm::cast<llvm::Sub
...

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61001 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoLegalizeDAG is not supposed to introduce illegal
Duncan Sands [Sat, 13 Dec 2008 22:33:38 +0000 (22:33 +0000)]
LegalizeDAG is not supposed to introduce illegal
types into the DAG if they were not already there.
Check this with an assertion.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60997 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRLE isn't smart enough to eliminate this safely yet.
Chris Lattner [Sat, 13 Dec 2008 21:04:20 +0000 (21:04 +0000)]
RLE isn't smart enough to eliminate this safely yet.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60994 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agorename some tests to be more uniform in naming convention.
Chris Lattner [Sat, 13 Dec 2008 18:47:40 +0000 (18:47 +0000)]
rename some tests to be more uniform in naming convention.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60988 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agogvn should never crash on this.
Chris Lattner [Sat, 13 Dec 2008 18:39:44 +0000 (18:39 +0000)]
gvn should never crash on this.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60987 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoThese messages should always be emitted when NDEBUG is unset, not when
Chris Lattner [Sat, 13 Dec 2008 18:37:58 +0000 (18:37 +0000)]
These messages should always be emitted when NDEBUG is unset, not when
NDEBUG is unset and -debug is passed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60986 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a comment to the auto-generated docs.
Mikhail Glushenkov [Sat, 13 Dec 2008 17:51:47 +0000 (17:51 +0000)]
Add a comment to the auto-generated docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60985 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMerge llvm-rst.css and llvm.css.
Mikhail Glushenkov [Sat, 13 Dec 2008 17:50:58 +0000 (17:50 +0000)]
Merge llvm-rst.css and llvm.css.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60984 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd explicit this-> for some member function in templated base class.
Cedric Venet [Sat, 13 Dec 2008 10:55:13 +0000 (10:55 +0000)]
Add explicit this-> for some member function in templated base class.
These call are probably dependent but VS with /Za don't seems to think so. We need to help him.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60978 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoTemporarily revert r60973. It's inexplicably causing a failure when self-hosting...
Bill Wendling [Sat, 13 Dec 2008 09:28:44 +0000 (09:28 +0000)]
Temporarily revert r60973. It's inexplicably causing a failure when self-hosting LLVM:

llvm[2]: Linking Release executable opt (without symbols)
...
Undefined symbols:
  "llvm::APFloat::IEEEsingle", referenced from:
      __ZN4llvm7APFloat10IEEEsingleE$non_lazy_ptr in libLLVMCore.a(Constants.o)
      __ZN4llvm7APFloat10IEEEsingleE$non_lazy_ptr in libLLVMCore.a(AsmWriter.o)
      __ZN4llvm7APFloat10IEEEsingleE$non_lazy_ptr in libLLVMCore.a(ConstantFold.o)
  "llvm::APFloat::IEEEdouble", referenced from:
      __ZN4llvm7APFloat10IEEEdoubleE$non_lazy_ptr in libLLVMCore.a(Constants.o)
      __ZN4llvm7APFloat10IEEEdoubleE$non_lazy_ptr in libLLVMCore.a(AsmWriter.o)
      __ZN4llvm7APFloat10IEEEdoubleE$non_lazy_ptr in libLLVMCore.a(ConstantFold.o)
ld: symbol(s) not found

This is in release mode. To replicate, compile llvm and llvm-gcc in optimized
mode. Then build llvm, in optimized mode, with the newly created compiler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60977 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix getFieldAs() to use the parameter instead of 6.
Torok Edwin [Sat, 13 Dec 2008 08:25:29 +0000 (08:25 +0000)]
Fix getFieldAs() to use the parameter instead of 6.
Add missing DIType constructor, needed by DIVariable::getType().

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60976 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRemove assertion to allow promotion of a truncating store operand
Mon P Wang [Sat, 13 Dec 2008 08:16:43 +0000 (08:16 +0000)]
Remove assertion to allow promotion of a truncating store operand

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60975 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdded basic support for expanding VSETCC
Mon P Wang [Sat, 13 Dec 2008 08:15:14 +0000 (08:15 +0000)]
Added basic support for expanding VSETCC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60974 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agomake RLE preserve the name of the load that it replaces. This is just
Chris Lattner [Sat, 13 Dec 2008 07:22:47 +0000 (07:22 +0000)]
make RLE preserve the name of the load that it replaces.  This is just
a pretification of the IR.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60973 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoOn big-endian machines it is wrong to do a full
Duncan Sands [Sat, 13 Dec 2008 07:18:38 +0000 (07:18 +0000)]
On big-endian machines it is wrong to do a full
width register load followed by a truncating
store for the copy, since the load will not place
the value in the lower bits.  Probably partial
loads/stores can never happen here, but fix it
anyway.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60972 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix spelling.
Misha Brukman [Sat, 13 Dec 2008 05:21:37 +0000 (05:21 +0000)]
Fix spelling.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60971 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoSome more documentation tweaks.
Mikhail Glushenkov [Sat, 13 Dec 2008 03:11:37 +0000 (03:11 +0000)]
Some more documentation tweaks.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60970 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMore cosmetic tweaks for llvmc docs.
Mikhail Glushenkov [Sat, 13 Dec 2008 02:28:58 +0000 (02:28 +0000)]
More cosmetic tweaks for llvmc docs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60969 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRe-enable test.
Devang Patel [Fri, 12 Dec 2008 22:42:35 +0000 (22:42 +0000)]
Re-enable test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60968 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoDo not print empty DW_AT_comp_dir.
Devang Patel [Fri, 12 Dec 2008 21:57:54 +0000 (21:57 +0000)]
Do not print empty DW_AT_comp_dir.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60965 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoWhen expanding unaligned loads and stores do not make
Duncan Sands [Fri, 12 Dec 2008 21:47:02 +0000 (21:47 +0000)]
When expanding unaligned loads and stores do not make
use of illegal integer types: instead, use a stack slot
and copying via integer registers.  The existing code
is still used if the bitconvert is to a legal integer
type.

This fires on the PPC testcases 2007-09-08-unaligned.ll
and vec_misaligned.ll.  It looks like equivalent code
is generated with these changes, just permuted, but
it's hard to tell.

With these changes, nothing in LegalizeDAG produces
illegal integer types anymore.  This is a prerequisite
for removing the LegalizeDAG type legalization code.

While there I noticed that the existing code doesn't
handle trunc store of f64 to f32: it turns this into
an i64 store, which represents a 4 byte stack smash.
I added a FIXME about this.  Hopefully someone more
motivated than I am will take care of it.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60964 91177308-0d34-0410-b5e6-96231b3b80d8

15 years ago- Use patterns instead of creating completely new instruction matching patterns,
Bill Wendling [Fri, 12 Dec 2008 21:15:41 +0000 (21:15 +0000)]
- Use patterns instead of creating completely new instruction matching patterns,
  which are identical to the original patterns.

- Change the multiply with overflow so that we distinguish between signed and
  unsigned multiplication. Currently, unsigned multiplication with overflow
  isn't working!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60963 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoXFAIL these tests for now.
Devang Patel [Fri, 12 Dec 2008 19:08:08 +0000 (19:08 +0000)]
XFAIL these tests for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60959 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix add/sub expansion: don't create ADD / SUB with two results (seems like everyone...
Evan Cheng [Fri, 12 Dec 2008 18:49:09 +0000 (18:49 +0000)]
Fix add/sub expansion: don't create ADD / SUB with two results (seems like everyone is doing this these days :-). Patch by Daniel M Gessel!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60958 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRevert my re-instated reverted commit, fixes the bootstrap build on x86-64 linux.
Nick Lewycky [Fri, 12 Dec 2008 17:09:07 +0000 (17:09 +0000)]
Revert my re-instated reverted commit, fixes the bootstrap build on x86-64 linux.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60951 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoWhen using a 4 byte jump table on a 64 bit machine,
Duncan Sands [Fri, 12 Dec 2008 08:13:38 +0000 (08:13 +0000)]
When using a 4 byte jump table on a 64 bit machine,
do an extending load of the 4 bytes rather than a
potentially illegal (type) i32 load followed by a
sign extend.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60945 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoDon't make use of an illegal type (i64) when
Duncan Sands [Fri, 12 Dec 2008 08:05:40 +0000 (08:05 +0000)]
Don't make use of an illegal type (i64) when
lowering f64 function arguments.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60944 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agofix some incorrect links.
Chris Lattner [Fri, 12 Dec 2008 04:20:01 +0000 (04:20 +0000)]
fix some incorrect links.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60919 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMan page update.
Mikhail Glushenkov [Fri, 12 Dec 2008 02:34:56 +0000 (02:34 +0000)]
Man page update.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60918 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdded support for SELECT v8i8 v4i16 for X86 (MMX)
Mon P Wang [Fri, 12 Dec 2008 01:25:51 +0000 (01:25 +0000)]
Added support for SELECT v8i8 v4i16 for X86 (MMX)
Added support for TRUNC v8i16 to v8i8 for X86 (MMX)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60916 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRedo the arithmetic with overflow architecture. I was changing the semantics of
Bill Wendling [Fri, 12 Dec 2008 00:56:36 +0000 (00:56 +0000)]
Redo the arithmetic with overflow architecture. I was changing the semantics of
ISD::ADD to emit an implicit EFLAGS. This was horribly broken. Instead, replace
the intrinsic with an ISD::SADDO node. Then custom lower that into an
X86ISD::ADD node with a associated SETCC that checks the correct condition code
(overflow or carry). Then that gets lowered into the correct X86::ADDOvf
instruction.

Similar for SUB and MUL instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60915 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix W3C validator errors.
Mikhail Glushenkov [Thu, 11 Dec 2008 23:43:14 +0000 (23:43 +0000)]
Fix W3C validator errors.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60912 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUse correct file for the llvmc tutorial.
Mikhail Glushenkov [Thu, 11 Dec 2008 23:33:33 +0000 (23:33 +0000)]
Use correct file for the llvmc tutorial.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60910 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUpdate the auto-generated llvmc documentation.
Mikhail Glushenkov [Thu, 11 Dec 2008 23:24:40 +0000 (23:24 +0000)]
Update the auto-generated llvmc documentation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60909 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a '-Wo,' option that passes options to opt.
Mikhail Glushenkov [Thu, 11 Dec 2008 22:19:14 +0000 (22:19 +0000)]
Add a '-Wo,' option that passes options to opt.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60902 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix a 80 col. violation.
Evan Cheng [Thu, 11 Dec 2008 22:02:02 +0000 (22:02 +0000)]
Fix a 80 col. violation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60901 91177308-0d34-0410-b5e6-96231b3b80d8

15 years ago* Removed stray </p> tag
Misha Brukman [Thu, 11 Dec 2008 19:44:51 +0000 (19:44 +0000)]
* Removed stray </p> tag
* Whitespace cleanups

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60891 91177308-0d34-0410-b5e6-96231b3b80d8

15 years ago* <div align=center> is not valid HTML 4.01 - removed alignment
Misha Brukman [Thu, 11 Dec 2008 19:37:04 +0000 (19:37 +0000)]
* <div align=center> is not valid HTML 4.01 - removed alignment
* <sup> cannot appear inside a <pre> - replaced <pre> with <tt> and <br>
* Added standard "Notes" section
* Sprinkled fixed-width <tt> tags in a few places for consistency

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60889 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRemoved warnings from HTML 4.01 validator: trailing slashes in <br> and <img>
Misha Brukman [Thu, 11 Dec 2008 18:23:24 +0000 (18:23 +0000)]
Removed warnings from HTML 4.01 validator: trailing slashes in <br> and <img>
tags are not needed in HTML, only XML.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60885 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoConform to the HTML 4.01 Strict specification.
Misha Brukman [Thu, 11 Dec 2008 18:14:06 +0000 (18:14 +0000)]
Conform to the HTML 4.01 Strict specification.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60884 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoSneaky, sneaky: move the -1 to the outside of the SMax. Reinstate the
Nick Lewycky [Thu, 11 Dec 2008 17:40:14 +0000 (17:40 +0000)]
Sneaky, sneaky: move the -1 to the outside of the SMax. Reinstate the
optimization of SGE/SLE with unit stride, now that it works properly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60881 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoGlobal replace of yellow W3C "valid HTML/CSS" icons with blue ones.
Misha Brukman [Thu, 11 Dec 2008 17:34:48 +0000 (17:34 +0000)]
Global replace of yellow W3C "valid HTML/CSS" icons with blue ones.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60880 91177308-0d34-0410-b5e6-96231b3b80d8

15 years ago* Fixed formatting of command descriptions to be consistent:
Misha Brukman [Thu, 11 Dec 2008 17:12:52 +0000 (17:12 +0000)]
* Fixed formatting of command descriptions to be consistent:
  - descriptions on new line
  - no terminating period
* Changed the W3C logos from yellow to blue to not stand out

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60879 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agofix grammar, thanks Duncan!
Torok Edwin [Thu, 11 Dec 2008 11:44:49 +0000 (11:44 +0000)]
fix grammar, thanks Duncan!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60875 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMerge Base.td and Tools.td.
Mikhail Glushenkov [Thu, 11 Dec 2008 10:38:06 +0000 (10:38 +0000)]
Merge Base.td and Tools.td.

This stuff is not used outside Base.td, and with the conversion of the
compilation graph to string-based format became much less (if at all)
useful.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60873 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agointroduce BasicBlock::getUniquePredecessor()
Torok Edwin [Thu, 11 Dec 2008 10:36:07 +0000 (10:36 +0000)]
introduce BasicBlock::getUniquePredecessor()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60872 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoPut Edge* classes into anonymous namespace.
Mikhail Glushenkov [Thu, 11 Dec 2008 10:34:18 +0000 (10:34 +0000)]
Put Edge* classes into anonymous namespace.

Prevents conflicts between plugins.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60871 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAvoid generating a convert_rndsat node when the src and dest type are the same.
Mon P Wang [Thu, 11 Dec 2008 03:30:13 +0000 (03:30 +0000)]
Avoid generating a convert_rndsat node when the src and dest type are the same.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60869 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoClarify FIXME.
Bill Wendling [Thu, 11 Dec 2008 01:26:44 +0000 (01:26 +0000)]
Clarify FIXME.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60867 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoWhitespace clean up (tabs with spaces)
Mon P Wang [Thu, 11 Dec 2008 00:44:22 +0000 (00:44 +0000)]
Whitespace clean up (tabs with spaces)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60866 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMake fix for r60829 less conservative to allow the proper optimization for
Mon P Wang [Thu, 11 Dec 2008 00:26:16 +0000 (00:26 +0000)]
Make fix for r60829 less conservative to allow the proper optimization for
vec_extract-sse4.ll.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60865 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd a newline after this debug output.
Bill Wendling [Wed, 10 Dec 2008 23:24:43 +0000 (23:24 +0000)]
Add a newline after this debug output.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60861 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agos/A Few Coding Standards/LLVM Coding Standards/g
Misha Brukman [Wed, 10 Dec 2008 23:07:02 +0000 (23:07 +0000)]
s/A Few Coding Standards/LLVM Coding Standards/g

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60859 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoIf ADD, SUB, or MUL have an overflow bit that's used, don't do transformation on
Bill Wendling [Wed, 10 Dec 2008 22:36:00 +0000 (22:36 +0000)]
If ADD, SUB, or MUL have an overflow bit that's used, don't do transformation on
them. The DAG combiner expects that nodes that are transformed have one value
result.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60857 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoPreliminary ARM debug support based on patch by Mikael of FlexyCore.
Evan Cheng [Wed, 10 Dec 2008 21:54:21 +0000 (21:54 +0000)]
Preliminary ARM debug support based on patch by Mikael of FlexyCore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60851 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoSome code clean up.
Evan Cheng [Wed, 10 Dec 2008 21:49:05 +0000 (21:49 +0000)]
Some code clean up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60850 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoOnly perform SETO/SETC to JO/JC conversion if extractvalue is coming from an arithmet...
Bill Wendling [Wed, 10 Dec 2008 19:44:24 +0000 (19:44 +0000)]
Only perform SETO/SETC to JO/JC conversion if extractvalue is coming from an arithmetic with overflow instruction.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60844 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agofix typo. thanks Baldrick for noticing
Nuno Lopes [Wed, 10 Dec 2008 16:11:10 +0000 (16:11 +0000)]
fix typo. thanks Baldrick for noticing

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60841 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoadd gcc 4.1.2 from redhat to the list of broken compilers
Nuno Lopes [Wed, 10 Dec 2008 16:01:22 +0000 (16:01 +0000)]
add gcc 4.1.2 from redhat to the list of broken compilers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60840 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUpdate these instructions to the 2.4 release.
Duncan Sands [Wed, 10 Dec 2008 14:24:58 +0000 (14:24 +0000)]
Update these instructions to the 2.4 release.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60838 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFor amusement, implement SADDO, SSUBO, UADDO, USUBO
Duncan Sands [Wed, 10 Dec 2008 12:30:42 +0000 (12:30 +0000)]
For amusement, implement SADDO, SSUBO, UADDO, USUBO
for promoted integer types, eg: i16 on ppc-32, or
i24 on any platform.  Complete support for arbitrary
precision integers would require handling expanded
integer types, eg: i128, but I couldn't be bothered.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60834 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMention the Ada and Fortran front-ends.
Duncan Sands [Wed, 10 Dec 2008 10:50:58 +0000 (10:50 +0000)]
Mention the Ada and Fortran front-ends.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60833 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoDon't dereference the end() iterator. This was
Duncan Sands [Wed, 10 Dec 2008 09:38:36 +0000 (09:38 +0000)]
Don't dereference the end() iterator.  This was
causing a bunch of failures when running
"make ENABLE_EXPENSIVE_CHECKS=1 check".

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60832 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdded a little more information that vector shifts require vector shift amount.
Mon P Wang [Wed, 10 Dec 2008 08:55:09 +0000 (08:55 +0000)]
Added a little more information that vector shifts require vector shift amount.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60831 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFixed a bug when trying to optimize a extract vector element of a
Mon P Wang [Wed, 10 Dec 2008 03:59:02 +0000 (03:59 +0000)]
Fixed a bug when trying to optimize a extract vector element of a
bit convert that changes the number of elements of a shuffle.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60829 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix MachineCodeEmitter to use uintptr_t instead of intptr_t. This avoids some overflo...
Evan Cheng [Wed, 10 Dec 2008 02:32:19 +0000 (02:32 +0000)]
Fix MachineCodeEmitter to use uintptr_t instead of intptr_t. This avoids some overflow issues. Patch by Thomas Jablin.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60828 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoWhitespace changes.
Bill Wendling [Wed, 10 Dec 2008 02:01:32 +0000 (02:01 +0000)]
Whitespace changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60826 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRewrite instructions for configuring external tests
Dale Johannesen [Wed, 10 Dec 2008 01:58:32 +0000 (01:58 +0000)]
Rewrite instructions for configuring external tests
to reflect reality.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60825 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix a bug introduced by r59265. If lazy compilation is disabled, return actual functi...
Evan Cheng [Wed, 10 Dec 2008 01:33:59 +0000 (01:33 +0000)]
Fix a bug introduced by r59265. If lazy compilation is disabled, return actual function ptr instead of ptr to stub if function is already compiled.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60822 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agomove an entry, add some notes, remove a completed item (IMPLICIT_DEF)
Chris Lattner [Wed, 10 Dec 2008 01:30:48 +0000 (01:30 +0000)]
move an entry, add some notes, remove a completed item (IMPLICIT_DEF)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60821 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAllow basicaa to walk through geps with identical indices in
Chris Lattner [Wed, 10 Dec 2008 01:04:47 +0000 (01:04 +0000)]
Allow basicaa to walk through geps with identical indices in
parallel, allowing it to decide that P/Q must alias if A/B
must alias in things like:
 P = gep A, 0, i, 1
 Q = gep B, 0, i, 1

This allows GVN to delete 62 more instructions out of 403.gcc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60820 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoWhitespace fixes.
Bill Wendling [Wed, 10 Dec 2008 00:28:22 +0000 (00:28 +0000)]
Whitespace fixes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60818 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoUpdate CalcLatency to work in terms of edge latencies, rather than
Dan Gohman [Wed, 10 Dec 2008 00:24:36 +0000 (00:24 +0000)]
Update CalcLatency to work in terms of edge latencies, rather than
node latencies. Use CalcLatency instead of manual code in
CalculatePriorities to keep it consistent. Previously it
computed slightly different results.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60817 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoFix a couple of Dwarf bugs.
Evan Cheng [Wed, 10 Dec 2008 00:15:44 +0000 (00:15 +0000)]
Fix a couple of Dwarf bugs.
- Emit DW_AT_byte_size for struct and union of size zero.
- Emit DW_AT_declaration for forward type declaration.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60812 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoCellSPU:
Scott Michel [Wed, 10 Dec 2008 00:15:19 +0000 (00:15 +0000)]
CellSPU:
- Fix bug 3185, with misc other cleanups.
- Needed to implement SPUInstrInfo::InsertBranch(). CAUTION: Not sure what
  gets or needs to get passed to InsertBranch() to insert a conditional
  branch. This will abort for now until a good test case shows up.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60811 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoImplement fast-isel conversion of a branch instruction that's branching on an
Bill Wendling [Tue, 9 Dec 2008 23:19:12 +0000 (23:19 +0000)]
Implement fast-isel conversion of a branch instruction that's branching on an
overflow/carry from the "arithmetic with overflow" intrinsics. It searches the
machine basic block from bottom to top to find the SETO/SETC instruction that is
its conditional. If an instruction modifies EFLAGS before it reaches the
SETO/SETC instruction, then it defaults to the normal instruction emission.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60807 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoRewrite the SDep class, and simplify some of the related code.
Dan Gohman [Tue, 9 Dec 2008 22:54:47 +0000 (22:54 +0000)]
Rewrite the SDep class, and simplify some of the related code.

The Cost field is removed. It was only being used in a very limited way,
to indicate when the scheduler should attempt to protect a live register,
and it isn't really needed to do that. If we ever want the scheduler to
start inserting copies in non-prohibitive situations, we'll have to
rethink some things anyway.

A Latency field is added. Instead of giving each node a single
fixed latency, each edge can have its own latency. This will eventually
be used to model various micro-architecture properties more accurately.

The PointerIntPair class and an internal union are now used, which
reduce the overall size.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60806 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoloosen up an assertion that isn't valid when called from
Chris Lattner [Tue, 9 Dec 2008 22:45:32 +0000 (22:45 +0000)]
loosen up an assertion that isn't valid when called from
invalidateCachedPointerInfo.  Thanks to Bill for sending me
a testcase.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60805 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoMinor code simplification.
Dan Gohman [Tue, 9 Dec 2008 22:45:08 +0000 (22:45 +0000)]
Minor code simplification.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60804 91177308-0d34-0410-b5e6-96231b3b80d8

15 years agoAdd sub/mul overflow intrinsics. This currently doesn't have a
Bill Wendling [Tue, 9 Dec 2008 22:08:41 +0000 (22:08 +0000)]
Add sub/mul overflow intrinsics. This currently doesn't have a
target-independent way of determining overflow on multiplication. It's very
tricky. Patch by Zoltan Varga!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@60800 91177308-0d34-0410-b5e6-96231b3b80d8