Commit Graph

78 Commits

Author SHA1 Message Date
Nuno Lopes 14d4b0cdb2 [ConstantRange] improve my previous patch per Nick suggestion
llvm-svn: 193795
2013-10-31 19:53:53 +00:00
Nuno Lopes 1112eca0af make ConstantRange::signExtend() optimal
the case [x, INT_MIN) was not handled optimally

llvm-svn: 193694
2013-10-30 15:36:50 +00:00
Nuno Lopes 8a24152048 simplify ConstantRange::getSetSize()
llvm-svn: 193523
2013-10-28 16:52:38 +00:00
Benjamin Kramer fc3ea6f4bc Don't use a potentially expensive shift if all we want is one set bit.
No functionality change.

llvm-svn: 186095
2013-07-11 16:05:50 +00:00
Benjamin Kramer cce97be70b Use move semantics if possible to construct ConstantRanges.
Arithmetic on ConstantRanges creates a lot of large temporary APInts that
benefit from move semantics.

llvm-svn: 186091
2013-07-11 15:37:27 +00:00
Chandler Carruth 9fb823bbd4 Move all of the header files which are involved in modelling the LLVM IR
into their new header subdirectory: include/llvm/IR. This matches the
directory structure of lib, and begins to correct a long standing point
of file layout clutter in LLVM.

There are still more header files to move here, but I wanted to handle
them in separate commits to make tracking what files make sense at each
layer easier.

The only really questionable files here are the target intrinsic
tablegen files. But that's a battle I'd rather not fight today.

I've updated both CMake and Makefile build systems (I think, and my
tests think, but I may have missed something).

I've also re-sorted the includes throughout the project. I'll be
committing updates to Clang, DragonEgg, and Polly momentarily.

llvm-svn: 171366
2013-01-02 11:36:10 +00:00
Nuno Lopes eb9d2755b2 make ConstantRange::zeroExtend() optimal
llvm-svn: 160643
2012-07-23 20:33:29 +00:00
Nuno Lopes c14776d406 reimplement truncate() to make it optimal.
It is optimal at least up to 7 bits (I've tested all such cases)
This change to truncate() allows a little simplification to the multiplication code,
and it also makes multiplication optimal :)

llvm-svn: 160512
2012-07-19 16:27:45 +00:00
Nuno Lopes 216d571af7 simplify getSetSize() per Duncan's comments
llvm-svn: 160368
2012-07-17 15:43:59 +00:00
Nuno Lopes 986cc181b0 teach ConstantRange that zero times X is always zero
llvm-svn: 160317
2012-07-16 20:47:16 +00:00
Nuno Lopes 99504c577c make ConstantRange::getSetSize() properly compute the size of wrapped and full sets.
Make it always return APInts with the same bitwidth for the same ConstantRange bitwidth to simply clients

llvm-svn: 160294
2012-07-16 18:08:12 +00:00
Nuno Lopes 5020db2a8c add ConstantRange::difference (to perform set difference/relative complement)
llvm-svn: 159352
2012-06-28 16:10:13 +00:00
Nuno Lopes ebb0c94e1b fix a off-by-one bug in intersectWith(), and add a bunch of tests
llvm-svn: 159319
2012-06-28 00:59:33 +00:00
Nuno Lopes 63afc08ca7 fix corner case in ConstantRange::intersectWith().
this fixes the missed optimization I was seeing in the CorrelatedValuePropagation pass

llvm-svn: 157032
2012-05-18 00:14:36 +00:00
Craig Topper a2886c21d9 Convert assert(0) to llvm_unreachable
llvm-svn: 149967
2012-02-07 05:05:23 +00:00
Nick Lewycky 228f5b4ba3 Conform to the style guide; remove 'else' after 'return'. Also remove an extra
if-statement by turning it into an assert. No functionality change.

llvm-svn: 147474
2012-01-03 20:33:00 +00:00
Benjamin Kramer 6709e05012 Make ConstantRange::truncate a bit more efficient.
llvm-svn: 145122
2011-11-24 17:24:33 +00:00
Richard Trieu a318b8dce6 Change:
assert(!"error message");

To:

  assert(0 && "error message");

which is more consistant across the code base.

llvm-svn: 140234
2011-09-21 03:09:09 +00:00
Frits van Bommel ec9cd83905 Trim includes.
llvm-svn: 136218
2011-07-27 15:20:06 +00:00
Nick Lewycky 5dc6b794b1 Fix the implementation of ConstantRange::sub(ConstantRange). Patch by Xi Wang!
llvm-svn: 133648
2011-06-22 21:13:46 +00:00
Jay Foad 583abbc4df PR5207: Change APInt methods trunc(), sext(), zext(), sextOrTrunc() and
zextOrTrunc(), and APSInt methods extend(), extOrTrunc() and new method
trunc(), to be const and to return a new value instead of modifying the
object in place.

llvm-svn: 121120
2010-12-07 08:25:19 +00:00
Nick Lewycky 5154ee0bca Make ConstantRange::makeICmpRegion handle all the edge cases properly. This
also fixes PR8250.

llvm-svn: 114972
2010-09-28 18:18:36 +00:00
Nick Lewycky ad48e01eef Add completely hokey binary-and and binary-or operations to ConstantRange and
teach LazyValueInfo to use them.

llvm-svn: 113196
2010-09-07 05:39:02 +00:00
Nick Lewycky a35462da3d Add a new isSignWrappedSet() method to ConstantRange.
Fix zeroExtend and signExtend to support empty sets, and to return the smallest
possible result set which contains the extension of each element in their
inputs. For example zext i8 [100, 10) to i16 is now [0, 256), not i16 [100, 10)
which contains 63446 members.

llvm-svn: 113187
2010-09-06 23:52:49 +00:00
Nick Lewycky d385c22cf3 Clean up ConstantRange a bit:
- remove ashr which never worked.
 - fix lshr and shl and add tests.
 - remove dead function "intersect1Wrapped".
 - add a new sub method to subtract ranges, with test.

llvm-svn: 110861
2010-08-11 22:04:36 +00:00