Commit Graph

66 Commits

Author SHA1 Message Date
Chris Lattner
893075f46e fix a nice subtle reassociate bug which would only occur
in a very specific use pattern embodied in the carefully
reduced testcase.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97794 91177308-0d34-0410-b5e6-96231b3b80d8
2010-03-05 07:18:54 +00:00
Bob Wilson
8d535859e5 Add a test for my change to disable reassociation for i1 types.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@95465 91177308-0d34-0410-b5e6-96231b3b80d8
2010-02-06 01:16:25 +00:00
Chris Lattner
f08872048f filecheckize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93775 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-18 21:58:32 +00:00
Chris Lattner
c2d1b6949c only factor from expressions whose uses are empty and whose
base is the right expression type.  This fixes PR5981.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@93045 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-09 06:01:36 +00:00
Chris Lattner
5f94af0f72 fix an infinite loop in reassociate building emacs.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92679 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-05 04:55:35 +00:00
Chris Lattner
9506c930aa When factoring multiply expressions across adds, factor both
positive and negative forms of constants together.  This 
allows us to compile:

int foo(int x, int y) {
    return (x-y) + (x-y) + (x-y);
}

into:

_foo:                                                       ## @foo
	subl	%esi, %edi
	leal	(%rdi,%rdi,2), %eax
	ret

instead of (where the 3 and -3 were not factored):

_foo:
        imull   $-3, 8(%esp), %ecx
        imull   $3, 4(%esp), %eax
        addl    %ecx, %eax
        ret

this started out as:
    movl    12(%ebp), %ecx
    imull   $3, 8(%ebp), %eax
    subl    %ecx, %eax
    subl    %ecx, %eax
    subl    %ecx, %eax
    ret

This comes from PR5359.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92381 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01 01:13:15 +00:00
Chris Lattner
75954e0bbd test case we alredy get right.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92380 91177308-0d34-0410-b5e6-96231b3b80d8
2010-01-01 00:50:00 +00:00
Chris Lattner
3523993451 reuse negates where possible instead of always creating them from scratch.
This allows us to optimize test12 into:

define i32 @test12(i32 %X) {
  %factor = mul i32 %X, -3                        ; <i32> [#uses=1]
  %Z = add i32 %factor, 6                         ; <i32> [#uses=1]
  ret i32 %Z
}

instead of:

define i32 @test12(i32 %X) {
  %Y = sub i32 6, %X                              ; <i32> [#uses=1]
  %C = sub i32 %Y, %X                             ; <i32> [#uses=1]
  %Z = sub i32 %C, %X                             ; <i32> [#uses=1]
  ret i32 %Z
}



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92373 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31 20:34:32 +00:00
Chris Lattner
69e98e2c0f teach reassociate to factor x+x+x -> x*3. While I'm at it,
fix RemoveDeadBinaryOp to actually do something.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92368 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31 19:24:52 +00:00
Chris Lattner
13a754ce92 simple fix for an incorrect factoring which causes a
miscompilation, PR5458.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92354 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31 08:33:49 +00:00
Chris Lattner
7f4ae5c84c merge some more tests in.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92353 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31 08:32:22 +00:00
Chris Lattner
e1f5460f78 filecheckize
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92352 91177308-0d34-0410-b5e6-96231b3b80d8
2009-12-31 08:29:56 +00:00
Dan Gohman
b7c0b246da Convert more tests to avoid llvm-as.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81545 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-11 18:36:27 +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
9c7a988e3b Use "opt < %s" instead of "opt %s" so that opt doesn't print the test
filename in the output, which interferes with the tests' grep lines.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81263 91177308-0d34-0410-b5e6-96231b3b80d8
2009-09-08 22:57:49 +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
Dan Gohman
ae3a0be92e Split the Add, Sub, and Mul instruction opcodes into separate
integer and floating-point opcodes, introducing
FAdd, FSub, and FMul.

For now, the AsmParser, BitcodeReader, and IRBuilder all preserve
backwards compatability, and the Core LLVM APIs preserve backwards
compatibility for IR producers. Most front-ends won't need to change
immediately.

This implements the first step of the plan outlined here:
http://nondot.org/sabre/LLVMNotes/IntegerOverflow.txt


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72897 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04 22:49:04 +00:00
Owen Anderson
7c856c09cd Remove GCSE and LoadVN from the testsuite.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54832 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-16 00:00:54 +00:00
Matthijs Kooijman
7361f63b25 Let some more tests ignore expected output on stderr.
Also, use > %t instead of -o %t for output in one test since that also works
when %t already exists.

This fixes 6 testcases.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52178 91177308-0d34-0410-b5e6-96231b3b80d8
2008-06-10 15:04:14 +00:00
Gabor Greif
f6cadc440c sabre brings to my attention that the 'tr' suffix is also obsolete
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51349 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 21:00:03 +00:00
Gabor Greif
722243bd40 Rename the last test with .llx extension to .ll, resolve duplicate test by renaming to isnan2. Now that no test has llx ending there is no need to search for them from dg.exp too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51328 91177308-0d34-0410-b5e6-96231b3b80d8
2008-05-20 19:52:04 +00:00
Tanya Lattner
7f40dea2f1 Upgrade tests to not use llvm-upgrade.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48530 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-19 04:36:04 +00:00
Chris Lattner
0b0803ae15 Split up subtracts into add+negate if they have a reassociable use or operand
that is also a subtract.  This implements PR2047 and Transforms/Reassociate/subtest2.ll 


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47241 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 20:51:26 +00:00
Chris Lattner
f06c3c29ac upgrade and simplify this test.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@47240 91177308-0d34-0410-b5e6-96231b3b80d8
2008-02-17 20:48:43 +00:00
Dan Gohman
28beeeac4d Convert tests using "| wc -l | grep ..." to use the count script.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@41097 91177308-0d34-0410-b5e6-96231b3b80d8
2007-08-15 13:36:28 +00:00
John Criswell
e644ef7b09 Convert .cvsignore files
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37801 91177308-0d34-0410-b5e6-96231b3b80d8
2007-06-29 16:35:07 +00:00
Chris Lattner
581f84f4cb move these xfailed tests to lib/Target/README.txt
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36805 91177308-0d34-0410-b5e6-96231b3b80d8
2007-05-05 22:28:33 +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
43b40035ba For PR1319:
Fix syntax of tests to ensure grep pattern is properly quoted.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36134 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-16 15:31:49 +00:00
Reid Spencer
9aafdcf20d For PR1319:
Upgrade to use new Tcl exec based test harness. This exposes 3 bugs that
were previously not being reported:
test/Transforms/GlobalDCE/2002-08-17-FunctionDGE.ll
test/Transforms/GlobalOpt/memset.ll
test/Transforms/IndVarsSimplify/exit_value_tests.llx


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36065 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-15 09:21:47 +00:00
Reid Spencer
0f5aed5648 Make the llvm-runtest function much more amenable by eliminating all the
global variables that needed to be passed in. This makes it possible to
add new global variables with only a couple changes (Makefile and llvm-dg.exp)
instead of touching every single dg.exp file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@35918 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-11 19:56:59 +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
eacb7020ec For PR950:
Update the test suite to accommodate the change from signed integer types
to signless integer types. The changes were of only a few kinds:

1. Make sure llvm-upgrade is run on the source which does the bulk of the
   changes automatically.

2. Change things like "grep 'int'" to "grep 'i32'"

3. In several tests bitcasting caused the same name to be reused in the
   same type plane. These had to be manually fixed. The fix was (generally)
   to leave the bitcast and provide the instruction with a new name. This
   should not affect the semantics of the test. In a few cases, the
   bitcasts were known to be superfluous and irrelevant to the test case
   so they were removed.

4. One test case uses a bytecode file which needed to be updated to the
   latest bytecode format.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32789 91177308-0d34-0410-b5e6-96231b3b80d8
2006-12-31 06:02:00 +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
86175f47b6 new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28006 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-28 04:14:29 +00:00
Tanya Lattner
9727555859 Added the ability to xfail based on llvmgcc version
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27635 91177308-0d34-0410-b5e6-96231b3b80d8
2006-04-12 21:57:40 +00:00
Reid Spencer
2676f83776 Tired of wading through cvs's list ? files that are generated when building
with srcdir = objdir to see what's okay and what's cruft. So, in goes a
bunch of .cvsignore files to shut cvs up about known output from running
"make check".


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27009 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-23 23:41:57 +00:00
Chris Lattner
95f6553c49 new testcase from a FIXME in the code
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26756 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-14 08:13:09 +00:00
Chris Lattner
000c7c4c7b Test that we can reassociate (x<<1)+(y<<1) -> (X+Y)<<1.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26752 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-14 06:54:32 +00:00
Chris Lattner
9e14cd355f new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@26525 91177308-0d34-0410-b5e6-96231b3b80d8
2006-03-04 09:35:02 +00:00
Chris Lattner
d6c69e9bba new testcase for recent bugfix
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23212 91177308-0d34-0410-b5e6-96231b3b80d8
2005-09-02 06:12:12 +00:00
Chris Lattner
fa48be79ae new testcase that crashes -reassociate
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23018 91177308-0d34-0410-b5e6-96231b3b80d8
2005-08-24 17:54:56 +00:00
Chris Lattner
6d60924e3d add a testcase for a case we do not handle yet
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21789 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 21:47:42 +00:00
Chris Lattner
22d06312a9 new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21787 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 21:41:18 +00:00
Chris Lattner
4544d0218a new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21784 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 21:28:33 +00:00
Chris Lattner
f4946dff71 new testcases for PR557
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21782 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 20:56:02 +00:00
Chris Lattner
1a82ca80dd new testcase
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21777 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-08 18:54:40 +00:00
Chris Lattner
5cc924ac42 test that reassociate can handle shifts
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21760 91177308-0d34-0410-b5e6-96231b3b80d8
2005-05-07 04:23:29 +00:00
Tanya Lattner
c8c1f12778 Adding srcdir arg
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18020 91177308-0d34-0410-b5e6-96231b3b80d8
2004-11-19 22:45:25 +00:00