Commit Graph

69463 Commits

Author SHA1 Message Date
Daniel Dunbar
083203dde8 MC/AsmMatcher: Fix indirect 80-col viola.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123174 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 15:26:11 +00:00
Anton Korobeynikov
2c8bd754de Fix merge fallout
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123172 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 12:56:18 +00:00
Anton Korobeynikov
7af6fad0a7 Update CMake stuff
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123171 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 12:39:23 +00:00
Anton Korobeynikov
16c29b5f28 Rename TargetFrameInfo into TargetFrameLowering. Also, put couple of FIXMEs and fixes here and there.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123170 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 12:39:04 +00:00
Daniel Dunbar
badbd2fde9 MC/ARM/AsmParser: Split out SplitMnemonicAndCC().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123169 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 12:24:52 +00:00
Chandler Carruth
f4db877cff Cleanup some of the constant folding code to consistently test intrinsic
IDs when available rather than using a mixture of IDs and textual name
comparisons.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123165 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 09:02:58 +00:00
Chris Lattner
622a11bc07 fit in 80 cols and use MBB::isSuccessor instead of a hand
rolled std::find.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123164 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 07:51:31 +00:00
Chandler Carruth
9cc9f50abc Teach instcombine about the rest of the SSE and SSE2 conversion
intrinsics element dependencies. Reviewed by Nick.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123161 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 07:19:37 +00:00
Jakob Stoklund Olesen
c9df025e33 Simplify a bunch of isVirtualRegister() and isPhysicalRegister() logic.
These functions not longer assert when passed 0, but simply return false instead.

No functional change intended.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123155 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 02:58:51 +00:00
Chandler Carruth
fdc8f2d260 Fold two related tests into the newly FileCheck-ized test, migrating
them to FileCheck as well.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123154 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 02:53:58 +00:00
Chandler Carruth
548e581dcb Clean up and FileCheck-ize a test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123153 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 02:53:54 +00:00
Michael J. Spencer
83a113b77c Fix Whitespace.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123152 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 02:34:40 +00:00
Michael J. Spencer
54453f2978 Support/Path: Deprecate PathV1::exists and replace all uses with PathV2::fs::exists.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123151 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 02:34:23 +00:00
Chris Lattner
f4afaa81f2 another random stab in the dark trying to fix llvm-gcc-i386-linux-selfhost
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123149 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 02:34:11 +00:00
Chris Lattner
f86c75da4d fix typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123148 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 02:33:34 +00:00
Chris Lattner
a806be66c1 another (more) aggressive attempt to bring llvm-gcc-i386-linux-selfhost
back to life.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123146 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 00:47:34 +00:00
Chris Lattner
00a35d0f14 expand on a note
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123145 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-10 00:33:01 +00:00
Chris Lattner
d8408270f3 temporarily disable memset formation from memsets in an effort to restore buildbot stability.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123144 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 23:52:48 +00:00
Chris Lattner
e70d7c2201 add a testcase I missed in previous commit.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123143 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 23:52:31 +00:00
Chris Lattner
66d7a5793c typo
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123142 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 23:48:41 +00:00
Chris Lattner
7cc4e304a6 xref a PR #
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123141 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 23:42:22 +00:00
Jakob Stoklund Olesen
b79cb79a46 Remove TargetRegisterInfo::NoRegister.
Fix the TargetRegisterInfo::NoRegister places where someone preferred
typing 'TargetRegisterInfo::NoRegister' instead of typing '0'.

Note that TableGen is already emitting xx::NoRegister in xxGenRegisterNames.inc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123140 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 23:20:48 +00:00
Chris Lattner
bd9d53cc65 add a fixme: ir isn't expressive enough.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123139 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 23:02:10 +00:00
Chris Lattner
53e1d45adb Step #4 in improving trip count analysis: HowFarToZero can analyze
NUW AddRec's much more aggressively.  We now get a trip count
for @test2 in nsw.ll


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123138 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 22:58:47 +00:00
Jakob Stoklund Olesen
da1f1f4950 Change virtual register numbering to make more space for physical registers.
The numbering plan is now:

0           NoRegister.
[1;2^30)    Physical registers.
[2^30;2^31) Stack slots.
[2^31;2^32) Virtual registers. (With -1u and -2u used by DenseMapInfo.)

Each segment is filled from the left, so any mistaken interpretation should
quickly cause crashes.

FirstVirtualRegister has been removed. TargetRegisterInfo provides predicates
conversion functions that should be used instead of interpreting register
numbers manually.

It is now legal to pass NoRegister to isPhysicalRegister() and
isVirtualRegister(). The result is false in both cases.

It is quite rare to represent stack slots in this way, so isPhysicalRegister()
and isVirtualRegister() require that isStackSlot() be checked first if it can
possibly return true. This allows a very fast implementation of the common
predicates.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123137 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 22:42:48 +00:00
Chris Lattner
7975e3ebba rearrange some code, no functionality change.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123136 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 22:39:48 +00:00
Chandler Carruth
fb00e2715b Add a note about the inability to model FP -> int conversions which
perform rounding other than truncation in the IR. Common C code for this
turns into really an LLVM intrinsic call that blocks a lot of further
optimizations.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123135 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 22:36:18 +00:00
Chris Lattner
ad19c8c63c Step #3 to improving trip count analysis: If we fold
a + {b,+,stride} into {a+b,+,stride}  (because a is LIV),
then the resultant AddRec is NUW/NSW if the client says it
is.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123133 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 22:31:26 +00:00
Chris Lattner
992efb0378 Step #2 to improve trip count analysis for loops like this:
void f(int* begin, int* end) { std::fill(begin, end, 0); }

which turns into a != exit expression where one pointer is
strided and (thanks to step #1) known to not overflow, and 
the other is loop invariant.

The observation here is that, though the IV is strided by
4 in this case, that the IV *has* to become equal to the
end value.  It cannot "miss" the end value by stepping over
it, because if it did, the strided IV expression would
eventually wrap around.

Handle this by turning A != B into "A-B != 0" where the A-B
part is known to be NUW.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123131 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 22:26:35 +00:00
Jakob Stoklund Olesen
42e9c96392 Remove MachineRegisterInfo::getLastVirtReg(), it was giving wrong results
when no virtual registers have been allocated.

It was only used to resize IndexedMaps, so provide an IndexedMap::resize()
method such that

 Map.grow(MRI.getLastVirtReg());

can be replaced with the simpler

 Map.resize(MRI.getNumVirtRegs());

This works correctly when no virtuals are allocated, and it bypasses the to/from
index conversions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123130 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 21:58:20 +00:00
Chris Lattner
9dddf08eb8 sort this.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123129 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 21:31:39 +00:00
Jakob Stoklund Olesen
be97e906e0 Teach TargetRegisterInfo how to cram stack slot indexes in with the virtual and
physical register numbers.

This makes the hack used in LiveInterval official, and lets LiveInterval be
oblivious of stack slots.

The isPhysicalRegister() and isVirtualRegister() predicates don't know about
this, so when a variable may contain a stack slot, isStackSlot() should always
be tested first.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123128 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 21:17:37 +00:00
Chandler Carruth
96b1b6c135 Add a note about a missed FP optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123126 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 21:00:19 +00:00
Jakob Stoklund Olesen
43a566519b Fix comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123125 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 19:45:45 +00:00
Chris Lattner
f42685004c fix a few old bugs (found by inspection) where we would zap instructions
without informing memdep.  This could cause nondeterminstic weirdness 
based on where instructions happen to get allocated, and will hopefully
breath some life into some broken testers.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123124 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 19:26:10 +00:00
Jakob Stoklund Olesen
2cfa5b4934 Add a forgotten VireReg2IndexFunctor.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123123 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 18:58:33 +00:00
Oscar Fuentes
6abea2b0a4 Apply -fPIC to C sources too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123122 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 17:38:31 +00:00
Tobias Grosser
aa2be84356 Instcombine: Fix pattern where the sext did not dominate the icmp using it
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123121 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 16:00:11 +00:00
Tobias Grosser
3a723ab344 DominatorTree->print() now prints the status of the DFSNumbers correctly
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123120 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 16:00:09 +00:00
Oscar Fuentes
2c5e0b8b98 Rewrite handling of LLVM_ENABLE_PIC. It was being processed after
config.h was generated, so it had no effect on it.

Thanks to arrowdodger for pointing out this and a tentative patch.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123119 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 14:34:39 +00:00
Cameron Zwarich
e7d7865bfd LoopInstSimplify preserves LoopSimplify.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123117 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 12:35:16 +00:00
Chandler Carruth
694d753b09 Another missed memset in std::vector initialization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123116 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 11:29:57 +00:00
Cameron Zwarich
f78df5ebb8 Eliminate some extra hash table lookups.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123115 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 10:54:21 +00:00
Cameron Zwarich
e272deed7b Add an informative comment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123114 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 10:32:30 +00:00
Chandler Carruth
27a2a13b62 Fix a cut-paste-o so that the sample code is correct for my last note.
Also, switch to a more clear 'sink' function with its declaration to
avoid any confusion about 'g'. Thanks for the suggestion Frits.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123113 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 10:10:59 +00:00
Chandler Carruth
e5ca494ae6 Another missed optimization of trivial vector code.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123112 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 09:58:36 +00:00
Chandler Carruth
d8723a9b55 Add a note about vector's size-constructor producing dead stores.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123111 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 09:58:33 +00:00
Jakob Stoklund Olesen
0804ead404 Simplify LiveDebugVariables by storing MachineOperand copies locations instead
of using a Location class with the same information.

When making a copy of a MachineOperand that was already stored in a
MachineInstr, it is necessary to clear the parent pointer on the copy. Otherwise
the register use-def lists become inconsistent.

Add MachineOperand::clearParent() to do that. An alternative would be a custom
MachineOperand copy constructor that cleared ParentMI. I didn't want to do that
because of the performance impact.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123109 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 05:33:21 +00:00
Jakob Stoklund Olesen
00f93fc046 Shrink a BitVector that didn't mean to store bits for all physical registers.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123108 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 03:45:44 +00:00
Jakob Stoklund Olesen
4314268128 Replace TargetRegisterInfo::printReg with a PrintReg class that also works without a TRI instance.
Print virtual registers numbered from 0 instead of the arbitrary
FirstVirtualRegister. The first virtual register is printed as %vreg0.
TRI::NoRegister is printed as %noreg.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123107 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-09 03:05:53 +00:00