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25788 Commits

Author SHA1 Message Date
Bill Wendling
6d749434a5 Add UADDO and SADDO nodes. These will be used for determining an overflow 
condition in an addition operation.

llvm-svn: 59760
 2008-11-21 00:11:16 +00:00
Dan Gohman
66e692dd8f Change these schedulers to not emit no-ops. It turns out that 
the RR scheduler actually does look at latency values, but it
doesn't use a hazard recognizer so it has no way to know when
a no-op is needed, as opposed to just stalling and incrementing
the cycle count.

llvm-svn: 59759
 2008-11-21 00:10:42 +00:00
Bill Wendling
4020b2b907 Fix error where it wasn't getting the correct caller function. 
llvm-svn: 59758
 2008-11-21 00:09:21 +00:00
Bill Wendling
f85b54db6c If the function being inlined has a higher stack protection level than the 
inlining function, then increase the stack protection level on the inlining
function.

llvm-svn: 59757
 2008-11-21 00:06:32 +00:00
Dan Gohman
fd06b62f9c Treat mid-block labels the same as terminators when building the 
MachineInstr scheduling DAG, meaning they implicitly depend on all
preceding defs. This fixes Benchmarks/Shootout-C++/except and
Regression/C++/EH/simple_rethrow in
  -relocation-model=pic -disable-post-RA-scheduler=false
mode.

llvm-svn: 59747
 2008-11-20 19:58:35 +00:00
Dan Gohman
3b3afa49f8 Add another machine-code printing pass when post-pass scheduling is run. 
llvm-svn: 59746
 2008-11-20 19:54:21 +00:00
Devang Patel
0c43c5a17f Don't forget arguments! 
llvm-svn: 59745
 2008-11-20 19:50:17 +00:00
Scott Michel
4026c8f44a CellSPU: 
(a) Remove moved file (SPUAsmPrinter.cpp) to make svn happy.
(b) Remove truncated stores that will never be used.
(c) Add initial support for __muldi3 as a libcall.

llvm-svn: 59734
 2008-11-20 16:36:33 +00:00
Duncan Sands
84e2128d5e Add some documentation. 
llvm-svn: 59727
 2008-11-20 10:34:43 +00:00
Mon P Wang
76b86c996e Allow XMM2 and XMM3 to be used for non ABI compliant code. 
llvm-svn: 59720
 2008-11-20 07:48:19 +00:00
Bill Wendling
939e13da58 80-column violation. 
llvm-svn: 59718
 2008-11-20 07:24:30 +00:00
Scott Michel
c4efcfdcd6 CellSPU: Custom lower truncating stores of i8 to i1 (should not have been 
promote), fix signed conversion of indexed offsets.

llvm-svn: 59707
 2008-11-20 05:01:09 +00:00
Nick Lewycky
f95bff882d undef beats zero. Fix this missed optimization opportunity. Patch by Matt Elder! 
llvm-svn: 59705
 2008-11-20 04:36:13 +00:00
Scott Michel
d811d41fe7 CellSPU: Adjust spacing/tabulation 
llvm-svn: 59703
 2008-11-20 04:26:21 +00:00
Dan Gohman
d5d4c72217 Remove a remnant of list-burr's fast mode. 
llvm-svn: 59702
 2008-11-20 03:32:45 +00:00
Dan Gohman
dd45a57684 Factor out the SethiUllman numbering logic from the list-burr and 
list-tdrr schedulers into a common base class.

llvm-svn: 59701
 2008-11-20 03:30:37 +00:00
Dan Gohman
63cc6f6c63 Remove the "fast" form of the list-burr scheduler, and use the 
dedicated "fast" scheduler in -fast mode instead, which is
faster. This speeds up llc -fast by a few percent on some
testcases -- the speedup only happens for code not handled by
fast-isel.

llvm-svn: 59700
 2008-11-20 03:11:19 +00:00
Dan Gohman
b8e32efb30 Facter AddPseudoTwoAddrDeps and associated infrasructure out of 
the list-burr scheduler so that it can be used by the list-tdrr
scheduler too.

llvm-svn: 59698
 2008-11-20 02:45:51 +00:00
Evan Cheng
2805dcc9a0 - Register scavenger should use MachineRegisterInfo and internal map to find the first use of a register after a given machine instruction. 
- When scavenging a register, in addition to the spill, insert a restore before the first use.
- Abort if client is looking to scavenge a register even when a previously scavenged register is still live.

llvm-svn: 59697
 2008-11-20 02:32:35 +00:00
Evan Cheng
bc91bb7658 Fix a thinko. MO is getOperand(i-1) so we don't have to adjust e. 
llvm-svn: 59696
 2008-11-20 02:25:51 +00:00
Dan Gohman
6d0d98d450 Add #include <climits> to get the definition of INT_MAX. 
llvm-svn: 59692
 2008-11-20 01:41:34 +00:00
Dan Gohman
77e3f07d4b Factor out the code for verifying the work of the scheduler, 
extend it a bit, and make use of it in all schedulers, to
ensure consistent checking.

llvm-svn: 59689
 2008-11-20 01:26:25 +00:00
Devang Patel
20dec363b1 Do not forget llvm.dbg.declare's first argument while removing debugging information. 
llvm-svn: 59688
 2008-11-20 01:20:42 +00:00
Dan Gohman
d8b57556ce Simplify this code a little. In the fast scheduler, CreateNewSUnit 
and CreateClone don't add any extra value.

llvm-svn: 59679
 2008-11-19 23:39:02 +00:00
Evan Cheng
c8ecb037a2 Eliminate a compile time warning. 
llvm-svn: 59678
 2008-11-19 23:21:33 +00:00
Evan Cheng
b434100baa Eliminate a compile time warning. 
llvm-svn: 59677
 2008-11-19 23:21:11 +00:00
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
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
Owen Anderson
482ea64f7b Add support for rematerialization in pre-alloc-splitting. 
llvm-svn: 59587
 2008-11-19 04:28:29 +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
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