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Author SHA1 Message Date
Sanjiv Gupta
89a7e67578 Make mem[cpy,move,set] intrinsics overloaded. 
llvm-svn: 59802
 2008-11-21 07:49:09 +00:00
Bill Wendling
6c369d3a6f Default to converting UADDO to the generic form that SADDO is converted to. 
llvm-svn: 59801
 2008-11-21 07:44:30 +00:00
Nick Lewycky
2fbf26fe70 Optimize (x/y)*y into x-(x%y) in general. Div and rem are about the same, and 
a subtract is cheaper than a multiply. This generalizes an existing transform.

llvm-svn: 59800
 2008-11-21 07:33:58 +00:00
Duraid Madina
51f68032c8 LLVM does have a fortran FE! 
llvm-svn: 59795
 2008-11-21 06:26:56 +00:00
Mon P Wang
1026a93fd1 Clean up normalization of shuffles 
llvm-svn: 59792
 2008-11-21 04:25:21 +00:00
Scott Michel
314d705baf CellSPU: 
(a) Fix bgs 3052, 3057
(b) Incorporate Duncan's suggestions re: i1 promotion
(c) Indentation updates.

llvm-svn: 59790
 2008-11-21 02:56:16 +00:00
Bill Wendling
380aac5f70 Combine the two add with overflow intrinsics lowerings. They differ only in DAG node type. 
llvm-svn: 59788
 2008-11-21 02:38:44 +00:00
Dan Gohman
79202c165e Set the isAntiDep flag in the MachineInstr scheduler. 
llvm-svn: 59787
 2008-11-21 02:38:21 +00:00
Bill Wendling
b2442fb4d2 Generate code for llvm.uadd.with.overflow intrinsic. No conversion support yet. 
llvm-svn: 59786
 2008-11-21 02:33:36 +00:00
Dan Gohman
be413b4a40 Add a flag to SDep for tracking which edges are anti-dependence edges. 
llvm-svn: 59785
 2008-11-21 02:27:52 +00:00
Bill Wendling
939fe53962 Update comment to reflect a semblance of reality. 
llvm-svn: 59784
 2008-11-21 02:24:44 +00:00
Bill Wendling
e4815d4f45 Remove chains. Unnecessary. 
llvm-svn: 59783
 2008-11-21 02:22:59 +00:00
Dan Gohman
62180eb6f2 Rename SDep's isSpecial to isArtificial, to make this field a little 
less mysterious.

llvm-svn: 59782
 2008-11-21 02:18:56 +00:00
Bill Wendling
1e6d74b84a Add generic test for add with overflow. 
llvm-svn: 59781
 2008-11-21 02:15:51 +00:00
Bill Wendling
0f9b6c3524 Rename "ADDO" to "SADDO" and "UADDO". The "UADDO" isn't equivalent to "ADDC" 
because the boolean it returns to indicate an overflow may not be treated like
as a flag. It could be stored to memory, for instance.

llvm-svn: 59780
 2008-11-21 02:12:42 +00:00
Bill Wendling
02db3b99bf Implement the sadd_with_overflow intrinsic. This is converted into 
"ISD::ADDO". ISD::ADDO is lowered into a target-independent form that does the
addition and then checks if the result is less than one of the operands. (If it
is, then there was an overflow.)

llvm-svn: 59779
 2008-11-21 02:03:52 +00:00
Devang Patel
b6d277da6c Fix unused variable warnings. 
llvm-svn: 59778
 2008-11-21 01:52:59 +00:00
Dan Gohman
fe33ecd2d3 Use ComputeLatency in the MachineInstr scheduler. 
llvm-svn: 59777
 2008-11-21 01:44:51 +00:00
Dan Gohman
34f79b2425 Remove the CycleBound computation code from the ScheduleDAGRRList 
schedulers. This doesn't have much immediate impact because
targets that use these schedulers by default don't yet provide
pipeline information.

This code also didn't have the benefit of register pressure
information. Also, removing it will avoid problems with list-burr
suddenly starting to do latency-oriented scheduling on x86 when we
start providing pipeline data, which would increase spilling.

llvm-svn: 59775
 2008-11-21 01:30:54 +00:00
Bill Wendling
239302c6c9 Update comment. 
llvm-svn: 59766
 2008-11-21 00:45:00 +00:00
Oscar Fuentes
fa0053e297 CMake: Do not rebuild the world when tblgen changes but the .inc files 
it produces are not affected by the change.

llvm-svn: 59763
 2008-11-21 00:18:45 +00:00
Dan Gohman
60693dacec Implement ComputeLatency for MachineInstr ScheduleDAGs. Factor 
some of the latency computation logic out of the SDNode
ScheduleDAG code into a TargetInstrItineraries helper method
to help with this.

llvm-svn: 59761
 2008-11-21 00:12:10 +00:00
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
Bill Wendling
d0bd6f6e73 Introduce two new "add" intrinsics. These return the sum plus a bit indicating 
that an overflow/carry occured. These are converted into ISD::[SU]ADDO nodes,
which are lowered in a target-independent way into something sane. Eventually,
each target can implement their own method of checking the overflow/carry flags.

llvm-svn: 59756
 2008-11-21 00:05:31 +00:00
Oscar Fuentes
cbfb4cf881 CMake: More documentation. 
llvm-svn: 59755
 2008-11-20 23:35:09 +00:00
Dan Gohman
b8f4f58938 Delete redundant inline keywords. 
llvm-svn: 59754
 2008-11-20 22:10:21 +00:00
Dan Gohman
0ba3f17e9f Doxygenate comments. 
llvm-svn: 59753
 2008-11-20 22:09:52 +00:00
Oscar Fuentes
378c8a6a81 CMake: Some documentation. Work in progress. 
llvm-svn: 59752
 2008-11-20 22:05:48 +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
Dan Gohman
7e92e53e25 Test -pre-RA-sched=fast too, for completeness. 
llvm-svn: 59741
 2008-11-20 19:26:04 +00:00
Oscar Fuentes
3c4de0ae87 CMake: Option for building with -fPIC. 
llvm-svn: 59739
 2008-11-20 19:13:51 +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
Bill Wendling
cfc163d249 Reformatting. No functionality change. 
llvm-svn: 59717
 2008-11-20 07:23:34 +00:00
Chris Lattner
527a103e8e add an operator= to assign to smallstring. 
llvm-svn: 59715
 2008-11-20 07:09:17 +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
0877d8890e Revert accidental last patch 
llvm-svn: 59704
 2008-11-20 04:28:08 +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
Oscar Fuentes
049ffc2c59 CMake: when building shared libraries, use -fPIC for compiling 
partially linked objects.

llvm-svn: 59699
 2008-11-20 03:10:17 +00:00