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Author SHA1 Message Date
Nick Lewycky
0c73079855 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59800 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 07:33:58 +00:00
Duraid Madina
41e4a59f2f LLVM does have a fortran FE! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59795 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 06:26:56 +00:00
Mon P Wang
230e4faa19 Clean up normalization of shuffles 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59792 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 04:25:21 +00:00
Scott Michel
9c0c6b2e4a CellSPU: 
(a) Fix bgs 3052, 3057
(b) Incorporate Duncan's suggestions re: i1 promotion
(c) Indentation updates.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59790 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:56:16 +00:00
Bill Wendling
ef37546f68 Combine the two add with overflow intrinsics lowerings. They differ only in DAG node type. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59788 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:38:44 +00:00
Dan Gohman
f6b7a47d5d Set the isAntiDep flag in the MachineInstr scheduler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59787 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:38:21 +00:00
Bill Wendling
da4948ac8c Generate code for llvm.uadd.with.overflow intrinsic. No conversion support yet. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59786 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:33:36 +00:00
Dan Gohman
cddd428459 Add a flag to SDep for tracking which edges are anti-dependence edges. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59785 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:27:52 +00:00
Bill Wendling
e1a6d160e5 Update comment to reflect a semblance of reality. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59784 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:24:44 +00:00
Bill Wendling
6c63f62729 Remove chains. Unnecessary. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59783 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:22:59 +00:00
Dan Gohman
98adea1149 Rename SDep's isSpecial to isArtificial, to make this field a little 
less mysterious.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59782 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:18:56 +00:00
Bill Wendling
52a5899fd9 Add generic test for add with overflow. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59781 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:15:51 +00:00
Bill Wendling
1c55a9c0cc 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59780 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:12:42 +00:00
Bill Wendling
7cdc3c8ad2 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.)


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59779 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 02:03:52 +00:00
Devang Patel
cb9a354d13 Fix unused variable warnings. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59778 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 01:52:59 +00:00
Dan Gohman
787782f4ca Use ComputeLatency in the MachineInstr scheduler. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59777 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 01:44:51 +00:00
Dan Gohman
f209c2cc30 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59775 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 01:30:54 +00:00
Bill Wendling
08c85d1209 Update comment. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59766 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 00:45:00 +00:00
Oscar Fuentes
beb7a05086 CMake: Do not rebuild the world when tblgen changes but the .inc files 
it produces are not affected by the change.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59763 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 00:18:45 +00:00
Dan Gohman
c8c2827993 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59761 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 00:12:10 +00:00
Bill Wendling
ea7b527aa5 Add UADDO and SADDO nodes. These will be used for determining an overflow 
condition in an addition operation.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59760 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 00:11:16 +00:00
Dan Gohman
47d1a214a7 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59759 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 00:10:42 +00:00
Bill Wendling
66c75aaa02 Fix error where it wasn't getting the correct caller function. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59758 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 00:09:21 +00:00
Bill Wendling
8c1604e7d6 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59757 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 00:06:32 +00:00
Bill Wendling
e6ed6ecfb0 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59756 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-21 00:05:31 +00:00
Oscar Fuentes
370387c736 CMake: More documentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59755 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 23:35:09 +00:00
Dan Gohman
eb3904bc25 Delete redundant inline keywords. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59754 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 22:10:21 +00:00
Dan Gohman
33372a18c5 Doxygenate comments. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59753 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 22:09:52 +00:00
Oscar Fuentes
25f1d0310c CMake: Some documentation. Work in progress. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59752 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 22:05:48 +00:00
Dan Gohman
8eaf41de8a 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59747 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 19:58:35 +00:00
Dan Gohman
5ce0973f7f Add another machine-code printing pass when post-pass scheduling is run. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59746 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 19:54:21 +00:00
Devang Patel
e0de705eb7 Don't forget arguments! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59745 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 19:50:17 +00:00
Dan Gohman
eac9cae45e Test -pre-RA-sched=fast too, for completeness. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59741 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 19:26:04 +00:00
Oscar Fuentes
64fb4c8ccd CMake: Option for building with -fPIC. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59739 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 19:13:51 +00:00
Gordon Henriksen
f13dcc2db8 Updating ignore lists. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59737 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 16:56:53 +00:00
Scott Michel
dc91bea479 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59734 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 16:36:33 +00:00
Duncan Sands
810260bf6b Add some documentation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59727 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 10:34:43 +00:00
Mon P Wang
07239f13cd Allow XMM2 and XMM3 to be used for non ABI compliant code. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59720 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 07:48:19 +00:00
Bill Wendling
f0a2d0cb8f 80-column violation. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59718 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 07:24:30 +00:00
Bill Wendling
8449edf599 Reformatting. No functionality change. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59717 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 07:23:34 +00:00
Chris Lattner
0fbdfc3664 add an operator= to assign to smallstring. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59715 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 07:09:17 +00:00
Scott Michel
4379efced7 CellSPU: Custom lower truncating stores of i8 to i1 (should not have been 
promote), fix signed conversion of indexed offsets.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59707 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 05:01:09 +00:00
Nick Lewycky
d433904982 undef beats zero. Fix this missed optimization opportunity. Patch by Matt Elder! 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59705 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 04:36:13 +00:00
Scott Michel
ee85bbcae1 Revert accidental last patch 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59704 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 04:28:08 +00:00
Scott Michel
a0e5769166 CellSPU: Adjust spacing/tabulation 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59703 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 04:26:21 +00:00
Dan Gohman
57bebbbd12 Remove a remnant of list-burr's fast mode. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59702 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 03:32:45 +00:00
Dan Gohman
117f3e9ee4 Factor out the SethiUllman numbering logic from the list-burr and 
list-tdrr schedulers into a common base class.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59701 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 03:30:37 +00:00
Dan Gohman
9e76fea3ab 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.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59700 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 03:11:19 +00:00
Oscar Fuentes
148d245c32 CMake: when building shared libraries, use -fPIC for compiling 
partially linked objects.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59699 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 03:10:17 +00:00
Dan Gohman
6be2ee431f Facter AddPseudoTwoAddrDeps and associated infrasructure out of 
the list-burr scheduler so that it can be used by the list-tdrr
scheduler too.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59698 91177308-0d34-0410-b5e6-96231b3b80d8
 2008-11-20 02:45:51 +00:00