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Author SHA1 Message Date
Owen Anderson
a84837747c Convert this file to less fragile .s form. 
llvm-svn: 117681
 2010-10-29 18:41:40 +00:00
Owen Anderson
8e290aafbd Replace this test with the less fragile .s version. Still XFAIL'd, since the ASM parser doesn't parse vabal yet. 
llvm-svn: 117679
 2010-10-29 18:31:26 +00:00
Jakob Stoklund Olesen
469a9ef414 Fix sign error. 
llvm-svn: 117677
 2010-10-29 18:21:18 +00:00
Owen Anderson
840931e8ed Covert this test to a .s file to reduce fragility. 
llvm-svn: 117676
 2010-10-29 18:18:40 +00:00
Evan Cheng
392d2cbdcc Avoiding overly aggressive latency scheduling. If the two nodes share an 
operand and one of them has a single use that is a live out copy, favor the
one that is live out. Otherwise it will be difficult to eliminate the copy
if the instruction is a loop induction variable update. e.g.

BB:
sub r1, r3, #1
str r0, [r2, r3]
mov r3, r1
cmp
bne BB

=>

BB:
str r0, [r2, r3]
sub r3, r3, #1
cmp
bne BB

This fixed the recent 256.bzip2 regression.

llvm-svn: 117675
 2010-10-29 18:09:28 +00:00
Evan Cheng
92293993bd - Don't schedule nodes with only MVT::Flag and MVT::Other values for latency. 
- Compute CopyToReg use operand latency correctly.

llvm-svn: 117674
 2010-10-29 18:07:31 +00:00
Jakob Stoklund Olesen
1f2fb9a020 Don't transfer unused values to the new intervals formed by splitting. 
llvm-svn: 117673
 2010-10-29 17:47:49 +00:00
Jim Grosbach
edec5cc6b8 Handle ARM addrmode5 instructions with an offset. 
llvm-svn: 117672
 2010-10-29 17:41:25 +00:00
Benjamin Kramer
d84e7a7b91 Silence Release build warnings. 
llvm-svn: 117671
 2010-10-29 17:40:05 +00:00
Jakob Stoklund Olesen
d56c4457a6 Teach ConnectedVNInfoEqClasses::Classify to deal with unused values. 
We don't want unused values forming their own equivalence classes, so we lump
them all together in one class, and then merge them with the class of the last
used value.

llvm-svn: 117670
 2010-10-29 17:37:29 +00:00
Jakob Stoklund Olesen
e577489ba5 Never propagate the idom value out of a block that defines its own value. 
llvm-svn: 117669
 2010-10-29 17:37:25 +00:00
John Thompson
6115a7f1d4 Inline asm multiple alternative constraints development phase 2 - improved basic logic, added initial platform support. 
llvm-svn: 117667
 2010-10-29 17:29:13 +00:00
Dan Gohman
85403d8246 Check if ErrMsg is null. This fixes the "not" command. 
llvm-svn: 117666
 2010-10-29 17:20:42 +00:00
Dan Gohman
6a889e86df Fix these error messages to be less confusing. These error 
messages primarily indicate errors running the viewer, not
errors with the graph file itself.

llvm-svn: 117665
 2010-10-29 17:03:40 +00:00
Dan Gohman
b27988e5bd Make Program::Wait differentiate execution failure due to the file 
being not found from the file being not executable. 

llvm-svn: 117664
 2010-10-29 16:54:25 +00:00
Jim Grosbach
6f257bd31b Revert 117660. Apparently it's not as trivial as that... 
llvm-svn: 117663
 2010-10-29 16:50:53 +00:00
Devang Patel
43516e02b6 Simplify. 
-      DIFile F = getFieldAs<DIFile>(6); 
-      return F.getDirectory();
+      return getFieldAs<DIFile>(6).getDirectory(); 

llvm-svn: 117662
 2010-10-29 16:42:37 +00:00
Dan Gohman
a80b1afde3 Make Program::Wait provide an error message string for errors 
executing the child process and abnormal child process termination.

llvm-svn: 117661
 2010-10-29 16:39:01 +00:00
Jim Grosbach
8c9a2ee86e ARM addrmode5 instructions have neither writeback nor post-indexed modes. 
llvm-svn: 117660
 2010-10-29 16:38:59 +00:00
Dan Gohman
3419ae24eb Check for (unlikely) errors from FindExecutable. 
llvm-svn: 117658
 2010-10-29 16:18:26 +00:00
Dan Gohman
e9b4001854 Fix these error messages to not mention PATH in cases where 
PATH isn't actually searched, and to not mention the executable
directory when it isn't actually searched.

llvm-svn: 117657
 2010-10-29 16:15:23 +00:00
Dan Gohman
90ced5a2ee Delete this obsolete comment. 
llvm-svn: 117655
 2010-10-29 16:03:34 +00:00
Jim Grosbach
29961ebfc5 Trailing whitespace. 
llvm-svn: 117651
 2010-10-29 14:46:02 +00:00
Benjamin Kramer
f2442da5f6 ARMAsmParser: Plug a memory leak. 
llvm-svn: 117648
 2010-10-29 09:43:39 +00:00
Eric Christopher
930a767468 Add an unreachable to silence warning - the switch is actually 
fully enumerated.

llvm-svn: 117647
 2010-10-29 09:26:59 +00:00
NAKAMURA Takumi
dece5f27eb unittests/CMakeLists.txt: Don't use RTTI, or linking failed. 
llvm-svn: 117646
 2010-10-29 08:59:43 +00:00
Bill Wendling
d9412db2c8 This may be an ARM target, so check for _Unwind_SjLj_Resume. 
llvm-svn: 117643
 2010-10-29 07:46:01 +00:00
NAKAMURA Takumi
a1491c3c47 test/Scripts/macho-dump: Make hack for Python-2.4. [PR7995] 
With Python-2.4, Reader::read64 always returns (unexpected) long integer.
FileCheck detects failure on test/MC/MachO among '0' and '0L'.

CentOS5(aka RHEL5 clone) provides python-2.4.

llvm-svn: 117637
 2010-10-29 01:14:16 +00:00
Dan Gohman
753c9ce807 Teach memdep to use pointsToConstantMemory to determine that loads 
from constant memory don't alias any stores.

llvm-svn: 117636
 2010-10-29 01:14:04 +00:00
Owen Anderson
9930e7bcb6 Convert this test to a .s file, so that it's not sensitive to codegen changes. 
llvm-svn: 117633
 2010-10-29 01:01:56 +00:00
Dan Gohman
a592a0f539 Add a basic testcase for TBAA-aware DSE. 
llvm-svn: 117632
 2010-10-29 00:54:02 +00:00
Jakob Stoklund Olesen
b7a4b7a7b0 Fix broken equivalence class calculation. We could probably also use 
EquvivalenceClasses.h except it looks like overkill when elements are continuous
integers.

llvm-svn: 117631
 2010-10-29 00:40:59 +00:00
Jakob Stoklund Olesen
1210a5145a Print out the connected components in the verifier after complaining about their 
multiplicity.

llvm-svn: 117630
 2010-10-29 00:40:57 +00:00
Jakob Stoklund Olesen
e446520687 Run a verification pass before any splitting to better distribute blame. 
llvm-svn: 117629
 2010-10-29 00:40:55 +00:00
Chris Lattner
115cd02d22 add simple support for addrmode5 operands, allowing 
vldr.64 to work.  I have no idea if this is fully right, but 
it is in the right direction.

llvm-svn: 117626
 2010-10-29 00:27:31 +00:00
Andrew Trick
e77cdffcf3 The ARM jit cannot handle these tests as of 2010-10-27. 
(A PR will be linked to this rev.)

llvm-svn: 117620
 2010-10-29 00:23:43 +00:00
Devang Patel
bf9c3c8947 Ignore empty blocks. 
llvm-svn: 117615
 2010-10-28 22:11:59 +00:00
Chris Lattner
ef237e6013 give better error diagnostics, for example: 
t.s:1:14: error: invalid operand for instruction
vldr.64	d17, [r0]   
       	     ^

instead of:

t.s:1:1: error: unrecognized instruction
vldr.64	d17, [r0]   
^

llvm-svn: 117611
 2010-10-28 21:41:58 +00:00
Chris Lattner
ba1e908431 hook up getOpcodeName for ARM so that "llc -show-mc-inst" includes 
the opcode string in the inst dump, e.g.:
	vmov	r2, r3, d17             @ encoding: [0x31,0x2b,0x53,0xec]
                                        @ <MCInst #989 VMOVRRD
                                        @  <MCOperand Reg:68>
                                        @  <MCOperand Reg:69>
                                        @  <MCOperand Reg:19>
                                        @  <MCOperand Imm:14>
                                        @  <MCOperand Reg:0>>

The "VMOVRRD" is new.

llvm-svn: 117609
 2010-10-28 21:37:33 +00:00
Rafael Espindola
913ce7ebc8 Improvements to .section parsing: 
* If we have a M or a G, reject sections without the type
* Only parse the flag specific arguments if we have M or G
* Parse the corresponding arguments for M and G

We ignore the G arguments and flag for now.

llvm-svn: 117608
 2010-10-28 21:33:33 +00:00
Chris Lattner
1917294eb5 most simple arm instructions match correctly now, 
it looks like we're not handling [] operands though

llvm-svn: 117607
 2010-10-28 21:31:07 +00:00
Chris Lattner
bd838d16e5 fix the asmmatcher generator to handle targets with no RegisterPrefix 
(like ARM) correctly.  With this change, we can now match "bx lr"
because we recognize lr as a register.

llvm-svn: 117606
 2010-10-28 21:28:42 +00:00
Chris Lattner
4210ffb9c5 move a method out of line. 
llvm-svn: 117605
 2010-10-28 21:28:01 +00:00
Chris Lattner
b6c7a9e204 remove the rest of hte owningptr's, no functionality change. 
llvm-svn: 117603
 2010-10-28 20:52:15 +00:00
Jakob Stoklund Olesen
c570151dc2 One day, physical register live ranges will be sensible. 
llvm-svn: 117602
 2010-10-28 20:44:22 +00:00
Devang Patel
c40ecb9302 Fix indentation. 
llvm-svn: 117601
 2010-10-28 20:41:11 +00:00
Jakob Stoklund Olesen
ccbfbefd93 Replace SplitKit SSA update with an iterative algorithm very similar to the one 
in SSAUpdaterImpl.h

Verifying live intervals revealed that the old method was completely wrong, and
we need an iterative approach to calculating PHI placemant. Fortunately, we have
MachineDominators available, so we don't have to compute that over and over
like SSAUpdaterImpl.h must.

Live-out values are cached between calls to mapValue() and computed in a greedy
way, so most calls will be working with very small block sets.

Thanks to Bob for explaining how this should work.

llvm-svn: 117599
 2010-10-28 20:34:52 +00:00
Jakob Stoklund Olesen
6f4262448e Make MachineDominators available for SplitEditor. We are going to need it for 
proper SSA updating.

This doesn't cause MachineDominators to be recomputed since we are already
requiring MachineLoopInfo which uses dominators as well.

llvm-svn: 117598
 2010-10-28 20:34:50 +00:00
Jakob Stoklund Olesen
35f9c58245 Add a temporary command line option to verify machine code after each spill or 
split.

llvm-svn: 117597
 2010-10-28 20:34:47 +00:00
Dan Gohman
d512ed689c Revert r117582, which reverted r77396. Searching PATH for a string 
which contains slashes is inconsistent with the meaning of PATH on
Unix-type platforms, and pretty surprising.

If the user has given a specific path to execute and we can't
execute it, we should fail and say why.  (Apparently the new
posix_spawn code doesn't always say why, but that's a separate
issue.)

llvm-svn: 117596
 2010-10-28 20:34:33 +00:00