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Chris Lattner
8132a182e7 revert r117858 while I check out a failure I missed. 
llvm-svn: 117859
 2010-10-31 19:05:32 +00:00
Chris Lattner
70b05a5b88 the asm matcher can't handle operands with modifiers (like ${foo:bar}). 
Instead of silently ignoring these instructions, emit a hard error and
force the target author to either refactor the target or mark the 
instruction 'isCodeGenOnly'.

Mark a few instructions in ARM and MBlaze as isCodeGenOnly the are 
doing this.

llvm-svn: 117858
 2010-10-31 18:48:12 +00:00
Chris Lattner
8aaac91ca4 sketch out the planned instruction alias mechanism, add some comments about 
how the push/pop mnemonic aliases are wrong.

llvm-svn: 117857
 2010-10-31 18:43:46 +00:00
Duncan Sands
92f33ea784 Factorize the duplicated logic for choosing the right argument 
calling convention out of the fast and normal ISel files, and
into the calling convention TD file.

llvm-svn: 117856
 2010-10-31 13:21:44 +00:00
Duncan Sands
0f49c49476 Remove CCAssignFnForRet from X86 FastISel in favour of RetCC_X86, 
which has the same logic specified in the CallingConv TD file.
This brings FastISel in line with the standard X86 ISel.

llvm-svn: 117855
 2010-10-31 13:02:38 +00:00
Duncan Sands
812f6878ea Explain the return value of CCAssignFn. 
llvm-svn: 117854
 2010-10-31 10:29:14 +00:00
Rafael Espindola
660b7f5c4a Add support for files with more than 65280 sections. No testcase since 
it would be a bit too big :-)

llvm-svn: 117849
 2010-10-31 00:16:26 +00:00
Eric Christopher
e012ee8db9 Make sure we have a legal type (and simple) before continuing. 
llvm-svn: 117848
 2010-10-30 21:25:26 +00:00
Benjamin Kramer
63031c7df3 Validate HTML. 
llvm-svn: 117847
 2010-10-30 21:07:28 +00:00
Chris Lattner
2624c9ccb0 add missing tag 
llvm-svn: 117846
 2010-10-30 20:21:00 +00:00
Chris Lattner
19ccfc3d63 have GetAliasRequiredFeatures get its features from 
AsmMatcherInfo so we don't have two places that know the
feature -> enum mapping.  No functionality change.

llvm-svn: 117845
 2010-10-30 20:15:02 +00:00
Chris Lattner
17980631fb simplify code that creates SubtargetFeatureInfo, ensuring that features 
that are only used by MnemonicAliases will be found.

llvm-svn: 117844
 2010-10-30 20:07:57 +00:00
Chris Lattner
d4ea8ee6f2 fix a fixme in stringmatcher, having it generate nice looking code if the 
'tomatch' code contains \n's.

llvm-svn: 117843
 2010-10-30 19:57:17 +00:00
Chris Lattner
aace31ce48 fix typos and some serious bugs in feature handling (but not for 
cases that are currently exercised).  Thanks to Frits van Bommel for
the great review!

llvm-svn: 117840
 2010-10-30 19:47:49 +00:00
Chris Lattner
49227ad505 Resolve a terrible hack in tblgen: instead of hardcoding 
"In32BitMode" and "In64BitMode" into tblgen, allow any
predicate that inherits from AssemblerPredicate.

llvm-svn: 117831
 2010-10-30 19:38:20 +00:00
Chris Lattner
15e92ddd01 Implement (and document!) support for MnemonicAlias's to have Requires 
directives, allowing things like this:

def : MnemonicAlias<"pop", "popl">, Requires<[In32BitMode]>;
def : MnemonicAlias<"pop", "popq">, Requires<[In64BitMode]>;

Move the rest of the X86 MnemonicAliases over to the .td file.

llvm-svn: 117830
 2010-10-30 19:23:13 +00:00
Chris Lattner
cce5ecf2cc fix build problem 
llvm-svn: 117828
 2010-10-30 18:57:07 +00:00
Chris Lattner
aaa72fa2af diagnose targets that define two alises with the same 'from' mnemonic 
with a useful error message instead of having tblgen explode with an 
assert.

llvm-svn: 117827
 2010-10-30 18:56:12 +00:00
Chris Lattner
3daf6d69dc emit the mnemonic aliases in their own helper function instead of 
inline into MatchInstructionImpl.

llvm-svn: 117826
 2010-10-30 18:48:18 +00:00
Chris Lattner
441672d7cb really zap alias. 
llvm-svn: 117824
 2010-10-30 18:23:25 +00:00
Chris Lattner
ba9271be5b move fcompi alias to .td file and zap some useless code. 
llvm-svn: 117823
 2010-10-30 18:22:53 +00:00
Chris Lattner
1b3b2e113f move rep aliases to td file 
llvm-svn: 117822
 2010-10-30 18:17:33 +00:00
Chris Lattner
49f977366f move sal aliases to .td file. 
llvm-svn: 117821
 2010-10-30 18:14:54 +00:00
Chris Lattner
54892b4d8d fix an encoding mismatch where "sal %eax, 1" was not using the short encoding 
for shl.  Caught by inspection.

llvm-svn: 117820
 2010-10-30 18:13:10 +00:00
Chris Lattner
38179edecd move a bunch more aliases from .cpp -> .td file. 
llvm-svn: 117819
 2010-10-30 18:07:17 +00:00
Chris Lattner
ac7f4957b1 move cmov aliases to .td file. 
llvm-svn: 117818
 2010-10-30 17:56:50 +00:00
Chris Lattner
acec7b7d46 move setcc and jcc aliases from .cpp to .td 
llvm-svn: 117817
 2010-10-30 17:51:45 +00:00
Chris Lattner
e90ff8dcb6 move some code. 
llvm-svn: 117816
 2010-10-30 17:38:55 +00:00
Chris Lattner
7c61e4bca2 implement (and document!) the first kind of MC assembler alias, which 
just remaps one mnemonic to another.  Convert a few of the X86 aliases
from .cpp to .td code.

llvm-svn: 117815
 2010-10-30 17:36:36 +00:00
Chris Lattner
f0bb464017 add a test for the ud2a alias. 
llvm-svn: 117803
 2010-10-30 17:01:25 +00:00
Duncan Sands
a8d9d6c6e3 Now that the MallocInst no longer exists, this workaround for 
it claiming not to have side-effects is no longer needed.

llvm-svn: 117789
 2010-10-30 16:12:16 +00:00
Jim Grosbach
c160d7a3ae Allow specifying a CPU to llvm-mc, so that we can properly set up subtarget 
feature lists for instruction pattern predicates.

llvm-svn: 117788
 2010-10-30 15:57:50 +00:00
Jim Grosbach
b6c76a2662 Add FIXME. 
llvm-svn: 117787
 2010-10-30 14:54:23 +00:00
Jim Grosbach
951667ac39 Clean up comments. 
llvm-svn: 117785
 2010-10-30 13:48:28 +00:00
Jim Grosbach
ddf6d9ec2f 80 columns. 
llvm-svn: 117784
 2010-10-30 13:46:39 +00:00
Duncan Sands
a7198342e7 If a function does a volatile load from a global constant, do not 
consider it to be readonly.  In fact, don't even consider it to be
readonly if it does a volatile load from an AllocaInst either (it
is debatable as to whether readonly would be correct or not in this
case; play safe for the moment).  This fixes PR8279.

llvm-svn: 117783
 2010-10-30 12:59:44 +00:00
Jim Grosbach
775afa274f Tidy up. 
llvm-svn: 117782
 2010-10-30 12:59:16 +00:00
Chris Lattner
ee8dea6453 Rename alignof -> alignOf to avoid irritating C++'0x compilers, 
PR8423, patch by nobled.

llvm-svn: 117774
 2010-10-30 05:14:01 +00:00
Chris Lattner
45c679522d stay out of the reserved namespace 
llvm-svn: 117773
 2010-10-30 04:57:14 +00:00
Chris Lattner
deabc3d7fa simplify this code. 
llvm-svn: 117771
 2010-10-30 04:35:59 +00:00
Chris Lattner
3a36dd4a0b split MaybeParseRegister into its two logical uses, eliminating malloc+free traffic. 
llvm-svn: 117769
 2010-10-30 04:09:10 +00:00
Jim Grosbach
298cac8db3 Avoid re-evaluating MI.getNumOperands() every iteration of the loop. 
llvm-svn: 117766
 2010-10-30 01:40:16 +00:00
Jakob Stoklund Olesen
b3b1db4e67 Include MachineBasicBlock numbers in viewCFG() output. 
llvm-svn: 117765
 2010-10-30 01:26:19 +00:00
Jakob Stoklund Olesen
035667c0d6 Make sure copies are inserted after any exception handling labels at the top of 
a basic block.

llvm-svn: 117764
 2010-10-30 01:26:16 +00:00
Jakob Stoklund Olesen
0ab92619d0 Add SkipPHIsAndLabels from PHIElimination to MachineBasicBlock. It is needed 
elsewhere.

llvm-svn: 117763
 2010-10-30 01:26:14 +00:00
Jakob Stoklund Olesen
b751dffc9f Disable more of physical register live intervals verification. 
llvm-svn: 117762
 2010-10-30 01:26:11 +00:00
Jakob Stoklund Olesen
4425035bfd Print out register class of spilled register. 
llvm-svn: 117761
 2010-10-30 01:26:09 +00:00
Bob Wilson
183c466006 Overhaul memory barriers in the ARM backend. Radar 8601999. 
There were a number of issues to fix up here:
* The "device" argument of the llvm.memory.barrier intrinsic should be
used to distinguish the "Full System" domain from the "Inner Shareable"
domain.  It has nothing to do with using DMB vs. DSB instructions.
* The compiler should never need to emit DSB instructions.  Remove the
ARMISD::SYNCBARRIER node and also remove the instruction patterns for DSB.
* Merge the separate DMB/DSB instructions for options only used for the
disassembler with the default DMB/DSB instructions.  Add the default
"full system" option ARM_MB::SY to the ARM_MB::MemBOpt enum.
* Add a separate ARMISD::MEMBARRIER_MCR node for subtargets that implement
a data memory barrier using the MCR instruction.
* Fix up encodings for these instructions (except MCR).
I also updated the tests and added a few new ones to check for DMB options
that were not currently being exercised.

llvm-svn: 117756
 2010-10-30 00:54:37 +00:00
Tobias Grosser
45db9e63fb Add polly support to the build system. 
Update the cmake and autoconf build system to compile polly
as a shared library if it is checked out into tools/polly. In case
polly is not checked out, nothing changes.
This models the way clang can be added to llvm if checked out to tools/clang.

Also rebuild configure.

Patch contributed by ether.

llvm-svn: 117755
 2010-10-30 00:54:26 +00:00
Jim Grosbach
996d1280bd Encode the register list operands for ARM mode LDM/STM instructions. 
llvm-svn: 117753
 2010-10-30 00:37:59 +00:00