6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-08-04 07:29:20 +00:00
Code Issues Projects Releases Wiki Activity
89,810 Commits 39 Branches 0 Tags 277 MiB
9030fc22dd
Commit Graph

16 Commits

Author SHA1 Message Date
Benjamin Kramer
86df062791 Revert "SCEV: When expanding a GEP the final addition to the base pointer has NUW but not NSW." 
This isn't right either, reverting for now.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154910 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-17 06:33:57 +00:00
Benjamin Kramer
c77764591b SCEV: When expanding a GEP the final addition to the base pointer has NUW but not NSW. 
Found by inspection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154262 91177308-0d34-0410-b5e6-96231b3b80d8
 2012-04-07 17:19:26 +00:00
Andrew Trick
ecb35ece5c SCEV fix. In general, Add/Mul expressions should not inherit NSW/NUW. 
This reverts r139450, fixes r139453, and adds much needed comments and a
unit test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145367 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-11-29 02:16:38 +00:00
Andrew Trick
c343c1e27e Propagate SCEV no-wrap flags whenever possible. 
This needs review.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@127638 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-03-15 00:37:00 +00:00
Chris Lattner
8ebaf90958 teach SCEV that the scale and addition of an inbounds gep don't NSW. 
This fixes a FIXME in scev-aa.ll (allowing a new no-alias result) and
generally makes things more precise.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125449 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-13 03:14:49 +00:00
Chris Lattner
1021236c74 Per discussion with Dan G, inbounds geps *certainly* can have 
unsigned overflow (e.g. "gep P, -1"), and while they can have
signed wrap in theoretical situations, modelling an AddRec as
not having signed wrap is going enough for any case we can 
think of today.  In the future if this isn't enough, we can
revisit this.  Modeling them as having NUW isn't causing any
known problems either FWIW.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125410 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-02-11 21:43:33 +00:00
Eric Christopher
48eec43fdb Revert the testcase from the previous reverted commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123227 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-11 09:20:44 +00:00
Chris Lattner
e70d7c2201 add a testcase I missed in previous commit. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123143 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-09 23:52:31 +00:00
Chris Lattner
6d5a2411aa teach SCEV analysis of PHI nodes that PHI recurences formed 
with GEP instructions are always NUW, because PHIs cannot wrap
the end of the address space.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123105 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-09 02:28:48 +00:00
Chris Lattner
f1859891b7 reduce indentation. Print <nuw> and <nsw> when dumping SCEV AddRec's 
that have the bit set.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123104 91177308-0d34-0410-b5e6-96231b3b80d8
 2011-01-09 02:16:18 +00:00
Dan Gohman
8a977e2edd -disable-output is no longer needed with -analyze. 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@94574 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-26 19:25:59 +00:00
Dan Gohman
3073329c53 Use WriteAsOperand instead of getName() to print loop header names, 
so that unnamed blocks are handled.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93059 91177308-0d34-0410-b5e6-96231b3b80d8
 2010-01-09 18:17:45 +00:00
Dan Gohman
f2f6ce65b7 Change tests from "opt %s" to "opt < %s" so that opt doesn't see the 
input filename so that opt doesn't print the input filename in the
output so that grep lines in the tests don't unintentionally match
strings in the input filename.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81537 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-11 18:01:28 +00:00
Dan Gohman
b1e1e82c54 Change these tests to feed the assembly files to opt directly, instead 
of using llvm-as, now that opt supports this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81226 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-09-08 16:50:01 +00:00
Dan Gohman
59858cf792 Change the assembly syntax for nsw, nuw, and exact, putting them 
after their associated opcodes rather than before. This makes them
a little easier to read.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77194 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-27 16:11:46 +00:00
Dan Gohman
eb490a7aa3 Teach ScalarEvolution to make use of no-overflow flags when 
analyzing add recurrences.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77034 91177308-0d34-0410-b5e6-96231b3b80d8
 2009-07-25 01:22:26 +00:00