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Author SHA1 Message Date
Dan Gohman
f4b2751ee6 Experimental post-pass scheduling support. Post-pass scheduling 
is currently off by default, and can be enabled with
-disable-post-RA-scheduler=false.

This doesn't have a significant impact on most code yet because it doesn't
yet do anything to address anti-dependencies and it doesn't attempt to
disambiguate memory references. Also, several popular targets
don't have pipeline descriptions yet.

The majority of the changes here are splitting the SelectionDAG-specific
code out of ScheduleDAG, so that ScheduleDAG can be moved to
libLLVMCodeGen.a. The interface between ScheduleDAG-using code and
the rest of the scheduling code is somewhat rough and will evolve.

llvm-svn: 59676
 2008-11-19 23:18:57 +00:00
Dan Gohman
32a8ee5c90 Move the code for printing a graph node label for an SUnit into 
a virtual method of SelectionDAG.

llvm-svn: 59667
 2008-11-19 22:09:45 +00:00
Dan Gohman
b5ce3ebed1 Convert SUnit's dump method into a print method and implement 
dump in terms of it.

llvm-svn: 59665
 2008-11-19 21:32:03 +00:00
Oscar Fuentes
212b29b9d9 CMake: Removed source file. 
llvm-svn: 59662
 2008-11-19 19:32:19 +00:00
Devang Patel
e5a07d989e Do not use separate utility to walk all instructions and remove dead dbg intrinsics. Let instcombiner do this job. 
llvm-svn: 59659
 2008-11-19 19:01:37 +00:00
Devang Patel
79a342d7d3 Let instcombiner remove redundant dbg intrinsics. 
llvm-svn: 59658
 2008-11-19 18:59:41 +00:00
Devang Patel
cd2e68c069 If there are two consecutive llvm.dbg.stoppoint calls then 
it is likely that the optimizer deleted code in between these
two intrinsics. Keep only the last llvm.dbg.stoppoint in this case.

llvm-svn: 59657
 2008-11-19 18:56:50 +00:00
Oscar Fuentes
c4345795b0 CMake: Removed source file from lib/Target/PIC16/CMakeLists.txt. 
llvm-svn: 59655
 2008-11-19 18:42:25 +00:00
Scott Michel
583eadfb46 CellSPU: Do not custom lower i1 stores, rely on type legalization to do the 
right thing and promote the store to i8.

llvm-svn: 59648
 2008-11-19 17:45:08 +00:00
Stuart Hastings
545f47a2cb <rdar://problem/6351057> 
Discourage (allocate last) use of x86_64 R12 and R13 due to their
longer instruction encodings.

llvm-svn: 59644
 2008-11-19 17:19:35 +00:00
Andrew Lenharth
54748faa8a ignore the -m elf_i386 directive used in the linux kernel 
llvm-svn: 59642
 2008-11-19 17:00:08 +00:00
Dan Gohman
60e2650b09 Revert r59640. It broke this test for builds that aren't 
configured with llvm-gcc.

llvm-svn: 59641
 2008-11-19 16:24:37 +00:00
Dan Gohman
1b9557279c Use %llvmgcc -xassembler instead of invoking as directly. This avoids 
problems for example when LLVM is built with --with-extra-options=-m64
and as defaults to x86-32 mode.

llvm-svn: 59640
 2008-11-19 16:02:14 +00:00
Scott Michel
5ca4b5b653 Temporary check-in for Duncan to demonstrate CellSPU store problem. 
llvm-svn: 59637
 2008-11-19 15:24:16 +00:00
Argyrios Kyrtzidis
c7a898544b Fix compilation error on MSVC. 
llvm-svn: 59629
 2008-11-19 12:56:21 +00:00
Sanjiv Gupta
e9e4de3e54 Forgot to add this in the previous commit. 
llvm-svn: 59623
 2008-11-19 12:12:49 +00:00
Sanjiv Gupta
da17b053d6 Fixed build warnings. 
llvm-svn: 59621
 2008-11-19 11:27:59 +00:00
Sanjiv Gupta
a66f48d8e9 Added a more function PIC16 backend. However to get this working a patch in 
ExpandIntegerOperand (LegalizeIntegerTypes.cpp) is needed which is yet to be reworked and submitted. 

llvm-svn: 59617
 2008-11-19 11:00:54 +00:00
Bill Wendling
896e6cd576 Use stripPointerCasts when checking for AllocaInsts for the stackprotector intrinsic. 
llvm-svn: 59614
 2008-11-19 09:17:16 +00:00
Sanjiv Gupta
32225bad7d Int type for PIC16 is i16. Added i16 intrinsics for memmove, memcpy and memset. 
llvm-svn: 59612
 2008-11-19 08:50:17 +00:00
Chris Lattner
e111ce1265 add a write method. 
llvm-svn: 59595
 2008-11-19 06:45:06 +00:00
Bill Wendling
797dcb3ef7 - Move the stackprotector intrinsic to the general section. 
- Rewrite the sentence to make it look as if English is my first language.

llvm-svn: 59592
 2008-11-19 05:56:17 +00:00
Owen Anderson
482ea64f7b Add support for rematerialization in pre-alloc-splitting. 
llvm-svn: 59587
 2008-11-19 04:28:29 +00:00
Daniel Dunbar
9c71cd5448 LLVMC2: -emit-llvm stops compilation. 
llvm-svn: 59586
 2008-11-19 04:15:56 +00:00
Daniel Dunbar
60f1563256 LLVMC2: Teach llvm_gcc_c tool about -include and -fsyntax-only. 
- Only focusing on llvm_gcc_c for now, eventually this needs to be
   refactored so it can be shared via all the gcc-like tools.

llvm-svn: 59582
 2008-11-19 02:59:00 +00:00
Daniel Dunbar
2e352c9bb6 Grammar. 
llvm-svn: 59581
 2008-11-19 02:37:39 +00:00
Dan Gohman
d69d23aa7f Rearrange code to reduce the nesting level. No functionality change. 
llvm-svn: 59580
 2008-11-19 02:00:32 +00:00
Bill Wendling
b8a7d944f1 Use dyn_cast instead of cast. 
llvm-svn: 59577
 2008-11-19 01:25:41 +00:00
Bill Wendling
5a374e2969 Match an element of the return type if it returns a structure. 
llvm-svn: 59576
 2008-11-19 01:15:05 +00:00
Devang Patel
dd2491943e Remove unused variables. 
llvm-svn: 59570
 2008-11-19 00:22:02 +00:00
Devang Patel
b49b40c2fb Fix typo. 
llvm-svn: 59569
 2008-11-19 00:19:18 +00:00
Oscar Fuentes
eb9804efe1 CMake: Support for building 32 bits shared libraries on 64 bits GNU 
systems. BUILD_32_BITS option renamed to LLVM_BUILD_32_BITS.

llvm-svn: 59568
 2008-11-19 00:10:39 +00:00
Dan Gohman
89a6126c1c Fix debug printing of flagged SDNodes in SUnits so that they 
print in the correct order.

llvm-svn: 59567
 2008-11-19 00:04:44 +00:00
Evan Cheng
997ba49e23 Make the same change to RegScavenger::backward. 
llvm-svn: 59566
 2008-11-18 23:54:01 +00:00
Oscar Fuentes
5373c4c527 CMake: Option for enabling/disabling threads. 
llvm-svn: 59565
 2008-11-18 23:45:21 +00:00
Bill Wendling
c795ca8627 Verify that the second parameter of the stacprotector intrinsic is an alloca 
instruction.

llvm-svn: 59563
 2008-11-18 23:09:31 +00:00
Evan Cheng
91d6c38321 We also need to keep the operand index for two address check. 
llvm-svn: 59562
 2008-11-18 22:56:19 +00:00
Evan Cheng
145b3db050 Register scavenger should process early clobber defs first. A dead early clobber def should not interfere with a normal def which happens one slot later. 
llvm-svn: 59559
 2008-11-18 22:28:38 +00:00
Evan Cheng
fcba3cab0b Fix indentation. 
llvm-svn: 59558
 2008-11-18 22:27:13 +00:00
Bill Wendling
99744090d6 Documentation for the llvm.stackprotector intrinsic. 
llvm-svn: 59557
 2008-11-18 22:10:53 +00:00
Devang Patel
233728e8c3 Add new helper pass that strips all symbol names except debugging information. 
This pass makes it easier to test wheter debugging info. influences optimization passes or not.

llvm-svn: 59552
 2008-11-18 21:34:39 +00:00
Dan Gohman
e5420a0ae9 Don't set neverHasSideEffects on x86's divide instructions, since 
they trap on divide-by-zero, and this side effect is otherwise
unmodeled.

llvm-svn: 59551
 2008-11-18 21:29:14 +00:00
Dan Gohman
6e32075485 Tidy up ScheduleNodeBottomUp methods, and make them more 
consistent with ScheduleNodeTopDown methods.

llvm-svn: 59550
 2008-11-18 21:22:20 +00:00
Dan Gohman
ce059cf482 Update a comment to reflect the current code. 
llvm-svn: 59549
 2008-11-18 21:14:44 +00:00
Duncan Sands
ef0c6c845c Remove integer promotion support for FP_EXTEND 
and FP_ROUND.  Not sure what these were doing
here - probably they were sometimes (wrongly)
created with integer operands somewhere that
has since been fixed.

llvm-svn: 59548
 2008-11-18 21:13:59 +00:00
Devang Patel
0728a7d7e5 Remove even more llvm.dbg variables. 
Remove all dead globals from llvm.metadata.
Ignore linkonce linkage for selected llvm.dbg values.

llvm-svn: 59547
 2008-11-18 21:13:41 +00:00
Oscar Fuentes
d46a90dbdb CMake: Remove HAVE_LT_DLOPEN from config.h.cmake because it was 
removed from config.h.in.

llvm-svn: 59546
 2008-11-18 21:12:01 +00:00
Duncan Sands
c7ea927666 Simplify code using helper routines. There is not 
supposed to be any functionality change.

llvm-svn: 59545
 2008-11-18 20:56:22 +00:00
Owen Anderson
57a8a95293 Fix a bug introduced by my previous patch. With this change, SPEC is now clean with prealloc splitting enabled. 
llvm-svn: 59544
 2008-11-18 20:53:59 +00:00
Dan Gohman
04e99d0f3f Add more const qualifiers. This fixes build breakage from r59540. 
llvm-svn: 59542
 2008-11-18 19:49:32 +00:00