Commit Graph

45 Commits

Author SHA1 Message Date
Benjamin Kramer
b6c8cb4422 Also fold (A+B) == A -> B == 0 when the add is commuted.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@125411 91177308-0d34-0410-b5e6-96231b3b80d8
2011-02-11 21:46:48 +00:00
Anders Carlsson
77bc49e5e2 Recognize and simplify
(A+B) == A  ->  B == 0
A == (A+B)  ->  B == 0



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@124567 91177308-0d34-0410-b5e6-96231b3b80d8
2011-01-30 22:01:13 +00:00
Dan Gohman
3e054fe9ef Use opt -S instead of piping bitcode output through llvm-dis.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81257 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 22:34:10 +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
Chris Lattner
41dc0fcb68 Teach masked value is zero about add and sub, and use MVIZ to
simplify things like (X & 4) >> 1 == 2  --> (X & 4) == 4.

since it is obvious that the shift doesn't remove any bits.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48631 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-21 05:19:58 +00:00
Tanya Lattner
76806b6a43 Remove llvm-upgrade and update tests.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48103 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-09 08:16:40 +00:00
Reid Spencer
eb1d74e0c8 For PR1319:
Remove && from the end of the lines to prevent tests from throwing run
lines into the background. Also, clean up places where the same command
is run multiple times by using a temporary file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36142 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-16 17:36:08 +00:00
Reid Spencer
7c65d4345e For PR1319:
Make use of the END. facility on all files > 1K so that we aren't wasting CPU
cycles searching for RUN: lines that we'll never find.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36059 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-15 07:38:21 +00:00
Reid Spencer
832254e1c2 Changes to support making the shift instructions be true BinaryOperators.
This feature is needed in order to support shifts of more than 255 bits
on large integer types.  This changes the syntax for llvm assembly to
make shl, ashr and lshr instructions look like a binary operator:
   shl i32 %X, 1
instead of
   shl i32 %X, i8 1
Additionally, this should help a few passes perform additional optimizations.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33776 91177308-0d34-0410-b5e6-96231b3b80d8
2007-02-02 02:16:23 +00:00
Reid Spencer
908504347b For PR411:
Update these tests to not use the same name even though the type of the
value differs. After PR411 hits, type planes will be gone and it will be
illegal for a name to be used twice, regardless of type.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33660 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-30 16:16:01 +00:00
Reid Spencer
e3ff5ada8a For PR761:
Remove "target endian/pointersize" or add "target datalayout" to make
the test parse properly or set the datalayout because defaults changes.

For PR645:
Make global names use the @ prefix.

For llvm-upgrade changes:
Fix test cases or completely remove use of llvm-upgrade for test cases
that cannot survive the new renaming or upgrade capabilities.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@33533 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-26 08:25:06 +00:00
Chris Lattner
e76b77c96a llvm upgrade doesn't accept 'define'
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32891 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-05 03:03:27 +00:00
Chris Lattner
0a2c88dafc new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32889 91177308-0d34-0410-b5e6-96231b3b80d8
2007-01-05 02:16:36 +00:00
Reid Spencer
69ccadd753 Use the llvm-upgrade program to upgrade llvm assembly.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32115 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-02 04:23:10 +00:00
Chris Lattner
12afb70894 new testcases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31585 91177308-0d34-0410-b5e6-96231b3b80d8
2006-11-09 05:11:23 +00:00
Chris Lattner
03182bfd89 new testcase I forgot to check in earlier
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26565 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-05 23:53:04 +00:00
Chris Lattner
5128d2323f new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26518 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-04 06:02:36 +00:00
Andrew Lenharth
e8148bc291 This is missed by InstCombine, patch comming
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24157 91177308-0d34-0410-b5e6-96231b3b80d8
2005-11-02 18:34:05 +00:00
Chris Lattner
dc0ffccb19 new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23378 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-18 04:22:59 +00:00
Chris Lattner
3d173b3638 new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21135 91177308-0d34-0410-b5e6-96231b3b80d8
2005-04-07 16:24:59 +00:00
Chris Lattner
d4dd775a24 Add some new tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19705 91177308-0d34-0410-b5e6-96231b3b80d8
2005-01-19 21:48:31 +00:00
Chris Lattner
706759e8c9 New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@17703 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-13 19:49:39 +00:00
Chris Lattner
d74634a885 New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16833 91177308-0d34-0410-b5e6-96231b3b80d8
2004-10-08 03:41:59 +00:00
Chris Lattner
e14a9a71d3 New testcases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16581 91177308-0d34-0410-b5e6-96231b3b80d8
2004-09-29 05:06:12 +00:00
Chris Lattner
80fc86a0b2 Add a new testcase for folding an add into a switch
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14586 91177308-0d34-0410-b5e6-96231b3b80d8
2004-07-03 00:25:31 +00:00
Chris Lattner
8d5e05bb71 new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@14442 91177308-0d34-0410-b5e6-96231b3b80d8
2004-06-27 22:51:19 +00:00
Chris Lattner
7706324512 New testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12818 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-10 22:01:27 +00:00
Chris Lattner
7c4865dfff Another testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12802 91177308-0d34-0410-b5e6-96231b3b80d8
2004-04-09 23:47:52 +00:00
Chris Lattner
efd74a0159 The instruction combining pass removes dead instructions, there is no need
to run the die pass after it.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11942 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-28 05:26:06 +00:00
Chris Lattner
ad5727d173 Add new testcases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8816 91177308-0d34-0410-b5e6-96231b3b80d8
2003-10-02 15:11:09 +00:00
Chris Lattner
b55650aad6 New testcases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8603 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-19 15:33:46 +00:00
Misha Brukman
e78760e179 Renamed as' => llvm-as', dis' => llvm-dis', link' => llvm-link'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8558 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-16 15:29:54 +00:00
Chris Lattner
d2ae23979c Add some tests for difficult reassociation cases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7824 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-13 19:01:09 +00:00
Chris Lattner
545513918a Reorganize tests because we no longer cannonicalize X != 0 -> cast X to bool
In fact, we plan to eliminate cast to bool entirely.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7805 91177308-0d34-0410-b5e6-96231b3b80d8
2003-08-13 05:27:57 +00:00
Chris Lattner
12642fda09 More testcases, which I'll implement later
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7298 91177308-0d34-0410-b5e6-96231b3b80d8
2003-07-24 19:44:51 +00:00
Chris Lattner
060c1f816c Remove usage of grep-not script
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6966 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-28 23:32:04 +00:00
Chris Lattner
c6cab24151 Convert scripts from using explicit control flow to use the new grep-not script
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6955 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-28 22:44:42 +00:00
Chris Lattner
be0fe12f72 Test limited reassociation
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5742 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-11 00:10:59 +00:00
Chris Lattner
8408add00a Add optimizations:
- (A & C1)+(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0
 - (A & C1)^(B & C2) -> (A & C1)|(B & C2) iff C1&C2 == 0


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5741 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-10 23:52:54 +00:00
Chris Lattner
fa59079c3c Add new testcases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5591 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-18 19:55:31 +00:00
Chris Lattner
b19fa8d3d6 Modernize testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5590 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-18 19:43:53 +00:00
Chris Lattner
e14e50d76b Modernize testcases
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5589 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-18 19:43:21 +00:00
Chris Lattner
4a6e4b30b4 These tests should not run -dce pass to cleanup instcombine.
If instcombine is making dead instructions, ALL that should be used is -die


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3221 91177308-0d34-0410-b5e6-96231b3b80d8
2002-08-02 19:27:58 +00:00
Chris Lattner
fa78358a05 More tests
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2489 91177308-0d34-0410-b5e6-96231b3b80d8
2002-05-06 16:44:53 +00:00
Chris Lattner
fe053c77c1 New testcase.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2291 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-18 17:35:39 +00:00