Commit Graph

80095 Commits

Author SHA1 Message Date
Craig Topper
50bee42b54 Convert assert(0) to llvm_unreachable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149849 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 22:14:15 +00:00
Talin
2cb395eae7 Efficient Constant Uniquing.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149848 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 20:54:10 +00:00
Nick Lewycky
fad4d40f37 Teach GlobalOpt to handle atomic accesses to globals.
* Most of the transforms come through intact by having each transformed load or
store copy the ordering and synchronization scope of the original.
 * The transform that turns a global only accessed in main() into an alloca
(since main is non-recursive) with a store of the initial value uses an
unordered store, since it's guaranteed to be the first thing to happen in main.
(Threads may have started before main (!) but they can't have the address of a
function local before the point in the entry block we insert our code.)
 * The heap-SRoA transforms are disabled in the face of atomic operations. This
can probably be improved; it seems odd to have atomic accesses to an alloca
that doesn't have its address taken.

AnalyzeGlobal keeps track of the strongest ordering found in any use of the
global. This is more information than we need right now, but it's cheap to
compute and likely to be useful.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149847 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 19:56:38 +00:00
Evan Cheng
dc7c716a1c DefinesPredicate should only look for def operands. Patch by Ludwig Meier.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149846 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 19:55:04 +00:00
Nick Lewycky
bc384a1feb Clean up some whitespace and comments. No functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149845 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 19:48:37 +00:00
Aaron Ballman
17da6e7ad8 Fixing a warning in MSVC (this is also a test commit)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149844 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 19:43:39 +00:00
Duncan Sands
c4fd448712 Neaten up this method. Check that if there is only one
predecessor then it's Src.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149843 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 19:43:37 +00:00
Duncan Sands
23f612113a Remove dead test: this was already checked and handled a few lines
above.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149841 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 19:30:06 +00:00
Duncan Sands
7abf924d31 Testcase for commit 149833 (use of an uninitialized variable noticed
by GCC).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149840 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 19:27:57 +00:00
Duncan Sands
87ba3f122b Fix a thinko pointed out by Eli and the buildbots.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149839 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 18:56:50 +00:00
Duncan Sands
33756f96d7 Reduce the number of dom queries made by GVN's conditional propagation
logic by half: isOnlyReachableViaThisEdge was trying to be clever and
handle the case of a branch to a basic block which is contained in a
loop.  This costs a domtree lookup and is completely useless due to
GVN's position in the pass pipeline: all loops have preheaders at this
point, which means it is enough for isOnlyReachableViaThisEdge to check
that Dst has only one predecessor.  (I checked this theoretical argument
by running over the entire nightly testsuite, and indeed it is so!).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149838 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 18:25:50 +00:00
Duncan Sands
68e20223a7 Reduce the number of non-trivial domtree queries by about 1% when
compiling sqlite3, by only doing dom queries after the cheap check
rather than interleaved with it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149836 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 15:50:43 +00:00
Duncan Sands
5b8a1db7ea Persuade GCC that there is nothing worth warning about here (there isn't).
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149834 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 14:20:11 +00:00
Duncan Sands
853066a32a Don't initialize CV in terms of itself! Spotted by GCC.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149833 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 14:16:09 +00:00
Duncan Sands
408a25c583 Explain to the compiler why TargetAddr is not used uninitialized later.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149832 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 14:14:35 +00:00
Nadav Rotem
cc870a8f93 Add additional documentation to the extract-and-trunc dagcombine optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149823 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 11:39:23 +00:00
Benjamin Kramer
d52d9cd038 Testing vector code without sse doesn't make much sense.
Should bring arm and ppc testers back to life (they default to -mcpu=generic)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149821 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 11:19:39 +00:00
Eli Bendersky
3d6b64a1eb Fix typo and broken link
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149820 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 11:17:49 +00:00
Eli Bendersky
371d7b0610 Add missing paren
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149817 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 09:21:25 +00:00
Craig Topper
5e25ee8a1f Convert assert(0) to llvm_unreachable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149816 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 08:31:47 +00:00
Chandler Carruth
69f44692bf Begin fleshing out more convenience predicates in llvm::Triple and
convert at least one client over to use them. Subsequent patches both to
LLVM and Clang will try to convert more people over to a common set of
predicates.

This round of predicates is focused on OS-categorization predicates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149815 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 08:26:40 +00:00
Craig Topper
655b8de7b2 Convert assert(0) to llvm_unreachable
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149814 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 07:21:30 +00:00
David Blaikie
0b2500c504 Simplify contains tests using 'count'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149813 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 06:35:36 +00:00
NAKAMURA Takumi
5c05f2b99e BBVectorize.cpp: Get rid of comparision to bool to fix a warning.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149810 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 05:47:51 +00:00
Craig Topper
6d1263acb9 Convert assert(0) to llvm_unreachable in X86 Target directory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149809 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 05:38:58 +00:00
Craig Topper
abb94d0687 Convert some assert(0) in default of switch statements to llvm_unreachable.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149808 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 03:43:23 +00:00
Craig Topper
5b209e84f4 Add target specific node for PMULUDQ. Change patterns to use it and custom lower intrinsics to it. Use it instead of intrinsic to handle 64-bit vector multiplies.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149807 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 03:14:49 +00:00
Chris Lattner
2237f84735 Improve the bitcode reader's handling of constant strings to use
ConstantDataArray::getString direction, instead of "boxing" each
byte into a ConstantInt and using ConstantArray::get.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149805 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 02:41:35 +00:00
Chris Lattner
521a255693 Add a test for the miscompilation my recent ConstantDataArray patches introduced, to make sure
we don't regress on it in the future.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149803 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 02:37:36 +00:00
Chris Lattner
18c7f80b3e reapply the patches reverted in r149470 that reenable ConstantDataArray,
but with a critical fix to the SelectionDAG code that optimizes copies
from strings into immediate stores: the previous code was stopping reading
string data at the first nul.  Address this by adding a new argument to
llvm::getConstantStringInfo, preserving the behavior before the patch.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149800 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 02:29:43 +00:00
Craig Topper
eea723fe02 Remove most of the intrinsics for XOP VPCMOV instruction. They all aliased to the same instruction with different types. This would be better accomplished with casts in the not yet created xopintrin.h header file.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149795 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-05 00:55:56 +00:00
Sean Callanan
3f4f34c7ba Modified the Enhanced Disassembler to create and
cache disassemblers according to the string value
of the target triple, not according to the enum
of the triple CPU.  The reason for this is that
certain attributes of the instruction set are not
reflected in the enum, but only in the string.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149773 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 07:45:35 +00:00
Jakob Stoklund Olesen
0aad7d274d Drop the REDEF_BY_EC VNInfo flag.
A live range that has an early clobber tied redef now looks like a
normal tied redef, except the early clobber def uses the early clobber
slot.

This is enough to handle any strange interference problems.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149769 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 05:51:25 +00:00
Jakob Stoklund Olesen
7e899cbb91 Correctly terminate a physreg redefined by an early clobber.
I don't have a test that fails because of this, but a test case like
CodeGen/X86/2009-12-01-EarlyClobberBug.ll exposes the problem.  EAX is
redefined by a tied early clobber operand on inline asm, and the live
range should look like this:

  %EAX,inf = [48r,64e:0)[64e,80r:1)  0@48r 1@64e

Previously, the two values got merged:

  %EAX,inf = [48r,80r:0)  0@48r

With this bug fixed, the REDEF_BY_EC VNInfo flag is no longer needed.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149768 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 05:41:20 +00:00
Nick Lewycky
c0dc1b7f97 Fix a leak!
Andy, in a previous commit you made this into an ImmutablePass so that you could
add it to the PassManager, then in the next commit you left it a Pass but
removed the code that added it to the PM. If you do add it to the PM then the PM
should take care of deleting it, but it's also true that nothing in codegen
needs this object to exist after it's done its work here. It's not clear to me
which design you want; this should likely either cease to be a Pass or be added
to the PM where other parts of CodeGen will request it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149765 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 05:26:17 +00:00
Jakob Stoklund Olesen
3b1088a2cc Don't store COPY pointers in VNInfo.
If a value is defined by a COPY, that instuction can easily and cheaply
be found by getInstructionFromIndex(VNI->def).

This reduces the size of VNInfo from 24 to 16 bytes, and improves
llc compile time by 3%.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149763 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 05:20:49 +00:00
Hal Finkel
edc8db87dc Boost the effective chain depth of loads and stores.
By default, boost the chain depth contribution of loads and stores. This will allow a load/store pair to vectorize even when it would not otherwise be long enough to satisfy the chain depth requirement.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149761 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 04:14:04 +00:00
Qirun Zhang
fd4b8e2bac remove the blank line from previous ci.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149758 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 03:18:47 +00:00
Qirun Zhang
940fbd6d66 test commit.
add a blank line.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149757 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 03:15:26 +00:00
Dylan Noblesmith
965a166eb7 autoconf: put generated clang files in build dir
It was writing generated files to the clang srcdir when
'--with-clang-srcdir' was specified.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149756 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 03:00:50 +00:00
Andrew Trick
061efcfb3e TargetPassConfig: confine the MC configuration to TargetMachine.
Passes prior to instructon selection are now split into separate configurable stages.
Header dependencies are simplified.
The bulk of this diff is simply removal of the silly DisableVerify flags.

Sorry for the target header churn. Attempting to stabilize them.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149754 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 02:56:59 +00:00
Andrew Trick
d542265401 Move TargetPassConfig implementation into Passes.cpp
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149753 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 02:56:48 +00:00
Andrew Trick
7461334084 Make TargetPassConfig an ImmutablePass so CodeGenPasses can query options
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149752 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 02:56:45 +00:00
Dylan Noblesmith
2b2c7b9c52 cmake: update outdated CPack version info
Left over from r116516.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149751 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 02:52:48 +00:00
Dylan Noblesmith
069df954a1 Object: avoid undefined behavior when bounds-checking
Don't form an out of bounds pointer just to test if it
would be out of bounds.

Also perform the same bounds checking for all the previous
mapped structures.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149750 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 02:41:39 +00:00
Dylan Noblesmith
3e82b4ad2a autoconf: fix clang detection
Now this works with and without --with-clang-srcdir, with and
without an out-of-tree build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149749 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 02:41:36 +00:00
Devang Patel
9e11eb1ddb Emit new property tag.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149737 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 01:30:32 +00:00
Devang Patel
0df823461d Update llvm debug version to support new structure and tag for Objective-C property's debug info.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149736 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 01:30:01 +00:00
Devang Patel
1ea02d467a Introduce DIObjCProperty. This will be used to encode objective-c property.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149732 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 00:59:25 +00:00
Chad Rosier
2f2d1d7ec0 [fast-isel] HandlePHINodesInSuccessorBlocks() can promite i8 and i16 types too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@149730 91177308-0d34-0410-b5e6-96231b3b80d8
2012-02-04 00:39:19 +00:00