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17522 Commits

Author SHA1 Message Date
Cameron Zwarich
37f1db39c4 Fix an obvious problem with an alignment computation. AsmPrinter actually does 
the max itself, so it is not easy to write a test case for this, but I added a
test case that would fail if the code in AsmPrinter were removed.

llvm-svn: 129432
 2011-04-13 09:02:43 +00:00
Cameron Zwarich
86333383eb Fix a typo. 
llvm-svn: 129429
 2011-04-13 06:39:16 +00:00
Cameron Zwarich
3f06fb96e5 If a global variable has a specified alignment that is less than the preferred 
alignment for its type, use the minimum of the specified alignment and the ABI
alignment. This fixes <rdar://problem/9275290>.

llvm-svn: 129428
 2011-04-13 06:03:16 +00:00
Bill Wendling
0984f4927e Reapply r129401 with patch for clang. 
llvm-svn: 129419
 2011-04-13 00:36:11 +00:00
Johnny Chen
5ae9980472 Add sanity check for Ld/St Dual forms of Thumb2 instructions. 
rdar://problem/9273947

llvm-svn: 129411
 2011-04-12 23:31:00 +00:00
Jakob Stoklund Olesen
b2c47a2087 Add @earlyclobber constraints to the writeback register of all ARM store instructions. 
The ARMARM specifies these instructions as unpredictable when storing the
writeback register. This shouldn't affect code generation much since storing a
pointer to itself is quite rare.

llvm-svn: 129409
 2011-04-12 23:27:48 +00:00
Bill Wendling
f6446a0961 Revert r129401 for now. Clang is using the old way of doing things. 
llvm-svn: 129403
 2011-04-12 22:59:27 +00:00
Bill Wendling
f9c9d3e05b Remove the unaligned load intrinsics in favor of using native unaligned loads. 
Now that we have a first-class way to represent unaligned loads, the unaligned
load intrinsics are superfluous.

First part of <rdar://problem/8460511>.

llvm-svn: 129401
 2011-04-12 22:46:31 +00:00
Johnny Chen
e3c070e904 The Thumb2 RFE instructions need to have their second halfword fully specified. 
In addition, the base register is not rGPR, but GPR with th exception that:

    if n == 15 then UNPREDICTABLE

rdar://problem/9273836

llvm-svn: 129391
 2011-04-12 21:41:51 +00:00
Johnny Chen
4450794a69 Add bad register checks for Thumb2 Ld/St instructions. 
rdar://problem/9269047

llvm-svn: 129387
 2011-04-12 21:17:51 +00:00
Johnny Chen
4435fc93c9 The Thumb2 Ld, St, and Preload instructions with the i12 forms should have its Inst{23} 
be specified as '1' (add = TRUE).

Also add a utility function for Thumb2.

llvm-svn: 129377
 2011-04-12 18:48:00 +00:00
Johnny Chen
aaaa46cee2 Print out a debug message when the reglist fails the sanity check for Thumb Ld/St Multiple. 
llvm-svn: 129365
 2011-04-12 17:09:04 +00:00
Cameron Zwarich
c05412175e Split a store of a VMOVDRR into two integer stores to avoid mixing NEON and ARM 
stores of arguments in the same cache line. This fixes the second half of
<rdar://problem/8674845>.

llvm-svn: 129345
 2011-04-12 02:24:17 +00:00
Johnny Chen
58713f0ec2 A8.6.16 B 
Encoding T1 (tBcc)
if cond == '1110' then UNDEFINED;

rdar://problem/9268681

llvm-svn: 129325
 2011-04-12 00:14:49 +00:00
Johnny Chen
443a6902bf Thumb disassembler was erroneously rejecting "blx sp" instruction. 
rdar://problem/9267838

llvm-svn: 129320
 2011-04-11 23:33:30 +00:00
Wesley Peck
3ebf5b75d6 Fix an error in the MBlaze delay slot filler. 
llvm-svn: 129313
 2011-04-11 22:45:02 +00:00
Wesley Peck
6263e05e6d Add scheduling information for the MBlaze backend. 
llvm-svn: 129311
 2011-04-11 22:31:52 +00:00
Wesley Peck
9481c2d620 Don't crash on invalid instructions when disassembling MBlaze code. 
This fixes http://llvm.org/bugs/show_bug.cgi?id=9653

llvm-svn: 129303
 2011-04-11 21:35:21 +00:00
Johnny Chen
77f484c5df Fix the bug where the immediate shift amount for Thumb logical shift instructions are incorrectly disassembled. 
rdar://problem/9266265

llvm-svn: 129298
 2011-04-11 21:14:35 +00:00
Owen Anderson
b8c2fc6d09 Fix another using-CPSR-twice bug in my ADCS/SBCS cleanups, and make proper use of the Commutable bit. 
llvm-svn: 129294
 2011-04-11 20:12:19 +00:00
Johnny Chen
77dc5a7187 Trivial comment fix. 
llvm-svn: 129288
 2011-04-11 18:51:50 +00:00
Johnny Chen
b07cb8fee1 Check invalid register encodings for LdFrm/StFrm ARM instructions and flag them as 
invalid instructions.

llvm-svn: 129286
 2011-04-11 18:34:12 +00:00
Kevin Enderby
6e09a5d065 Adding support for printing operands symbolically to llvm's public 'C' 
disassembler API.  Hooked this up to the ARM target so such tools as Darwin's
otool(1) can now print things like branch targets for example this:
  blx _puts
instead of this:
  blx #-36
And even print the expression encoded in the Mach-O relocation entried for
things like this:
  movt r0, :upper16:((_foo-_bar)+1234)

llvm-svn: 129284
 2011-04-11 18:08:50 +00:00
Jay Foad
0d5ca4cf44 Don't include Operator.h from InstrTypes.h. 
llvm-svn: 129271
 2011-04-11 09:35:34 +00:00
Nicolas Geoffray
5b427ce48b Bugfix in the Cpp backend after API change on PHINode::Create. 
llvm-svn: 129248
 2011-04-10 17:39:40 +00:00
Chris Lattner
b9b420d588 fix rdar://8735979 - "int 3" doesn't match to "int3". Unfortunately, 
InstAlias doesn't allow matching immediate operands, so we have to write
C++ code to do this.

llvm-svn: 129223
 2011-04-09 19:41:05 +00:00
Matt Beaumont-Gay
16d2e58f1d Fix an apparent typo that made GCC complain 
llvm-svn: 129160
 2011-04-08 21:59:49 +00:00
Evan Cheng
bc053100af Change -arm-trap-func= into a non-arm specific option. Now Intrinsic::trap is lowered into a call to the specified trap function at sdisel time. 
llvm-svn: 129152
 2011-04-08 21:37:21 +00:00
Johnny Chen
18f79bbaca Check opcoe (dmb, dsb) instead of bitfields matching. 
llvm-svn: 129148
 2011-04-08 20:03:46 +00:00
Johnny Chen
e2464aa24a Hanlde the checking of bad regs for SMMLAR properly, instead of asserting. 
PR9650
rdar://problem/9257565

llvm-svn: 129147
 2011-04-08 19:41:22 +00:00
Johnny Chen
5b7854afa5 Sanity check the option operand for DMB/DSB. 
PR9648
rdar://problem/9257634

llvm-svn: 129146
 2011-04-08 19:18:07 +00:00
Jim Grosbach
5e0618da1a Mark hasExtraDefRegAllocReq=1 on LDRD. 
The previous cleanup of LDRD got overzealous and removed it, causing post-RA
scheduling to get overzealous in breaking antidependencies and invalidate these instructions. Hilarity and invalid assembly ensued.

rdar://9244161

llvm-svn: 129144
 2011-04-08 18:47:05 +00:00
Johnny Chen
16ed2c18a0 Add sanity checking for bad register specifier(s) for the DPFrm instructions. 
Add more test cases to exercise the logical branches related to the above change.

llvm-svn: 129117
 2011-04-08 00:29:09 +00:00
Bill Wendling
342ba5c4b6 Replace the old algorithm that emitted the "print the alias for an instruction" 
with the newer, cleaner model. It uses the IAPrinter class to hold the
information that is needed to match an instruction with its alias. This also
takes into account the available features of the platform.

There is one bit of ugliness. The way the logic determines if a pattern is
unique is O(N**2), which is gross. But in reality, the number of items it's
checking against isn't large. So while it's N**2, it shouldn't be a massive time
sink.

llvm-svn: 129110
 2011-04-07 21:20:06 +00:00
Evan Cheng
9049eb2113 Add option to emit @llvm.trap as a function call instead of a trap instruction. rdar://9249183. 
llvm-svn: 129107
 2011-04-07 20:31:12 +00:00
Akira Hatanaka
dcc8678bd5 Fix indentation. 
llvm-svn: 129105
 2011-04-07 20:25:10 +00:00
Akira Hatanaka
b8304b2c15 Update ATUsed every time after expandRegLargeImmPair is called. 
llvm-svn: 129104
 2011-04-07 20:23:26 +00:00
Mon P Wang
9aa67ff50a Fixed encoding for VEXTqf 
llvm-svn: 129101
 2011-04-07 19:56:12 +00:00
Akira Hatanaka
24e15bbe94 Fix handling of functions with internal linkage. 
llvm-svn: 129099
 2011-04-07 19:51:44 +00:00
Johnny Chen
5d23dd2116 Add sanity checking for invalid register encodings for signed/unsigned extend instructions. 
Add some test cases.

llvm-svn: 129098
 2011-04-07 19:28:58 +00:00
Johnny Chen
7198a60b9a Add sanity checking for invalid register encodings for saturating instructions. 
llvm-svn: 129096
 2011-04-07 19:02:08 +00:00
Johnny Chen
ecc113f223 Add some more comments about checkings of invalid register numbers. 
And two test cases.

llvm-svn: 129090
 2011-04-07 18:33:19 +00:00
Tanya Lattner
3deb96fad7 Prevent ARM DAG Combiner from doing an AND or OR combine on an illegal vector type (vectors of size 3). Also included test cases. 
llvm-svn: 129074
 2011-04-07 15:24:20 +00:00
Johnny Chen
4c81015af7 Sanity check MSRi for invalid mask values and reject it as invalid. 
rdar://problem/9246844

llvm-svn: 129050
 2011-04-07 01:37:34 +00:00
Johnny Chen
1f028bb23e The ARM disassembler was not recognizing USADA8 instruction. Need to add checking for register values 
for USAD8 and USADA8.

rdar://problem/9247060

llvm-svn: 129047
 2011-04-07 01:05:52 +00:00
Evan Cheng
859dff2c87 Change -arm-divmod-libcall to a target neutral option. 
llvm-svn: 129045
 2011-04-07 00:58:44 +00:00
Johnny Chen
523f8f38f7 Should also check SMLAD for invalid register values. 
rdar://problem/9246650

llvm-svn: 129042
 2011-04-07 00:50:25 +00:00
Owen Anderson
37b60bdf09 Teach the ARM peephole optimizer that RSB, RSC, ADC, and SBC can be used for folded comparisons, just like ADD and SUB. 
llvm-svn: 129038
 2011-04-06 23:35:59 +00:00
Owen Anderson
7f766b61a1 Cleanups from Jim: remove redundant constraints and a dead FIXME. 
llvm-svn: 129036
 2011-04-06 22:45:55 +00:00
Jim Grosbach
0510dc2765 Tidy up. 
llvm-svn: 129034
 2011-04-06 22:35:47 +00:00