Chris Lattner
d2c58366d8
generalize a transformation even more: we don't care whether the
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input the the mul is a zext from bool, just that it is all zeros
other than the low bit. This fixes some phase ordering issues
that would cause us to miss some xforms in mul.ll when the worklist
is visited differently.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83794 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-11 21:29:45 +00:00
Chris Lattner
0036e3a469
simplify a transformation by making it more general.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83792 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-11 21:22:21 +00:00
Chris Lattner
8af304ab3b
implement rdar://7293527, a trivial instcombine that llvm-gcc
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gets but clang doesn't, because it is implemented in GCC's
fold routine.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@83761 91177308-0d34-0410-b5e6-96231b3b80d8
2009-10-11 07:53:15 +00:00
Dan Gohman
3e054fe9ef
Use opt -S instead of piping bitcode output through llvm-dis.
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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
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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
Eli Friedman
b468709c91
Fix trivial todo in instcombine.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75586 91177308-0d34-0410-b5e6-96231b3b80d8
2009-07-14 02:01:53 +00:00
Dan Gohman
ae3a0be92e
Split the Add, Sub, and Mul instruction opcodes into separate
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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
Dan Gohman
0e19a3f89e
Check in test changes that I accidentally left out of r72872.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72875 91177308-0d34-0410-b5e6-96231b3b80d8
2009-06-04 18:22:31 +00:00
Chris Lattner
b8cd4d3d49
Implement support for simplifying vector comparisons by 0.0 and 1.0 like we
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do for scalars. Patch contributed by Nicolas Capens
This also generalizes the previous xforms to work on long double, now that
isExactlyValue works for long double.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54653 91177308-0d34-0410-b5e6-96231b3b80d8
2008-08-11 22:06:05 +00:00
Tanya Lattner
f04d8d1593
Upgrade tests to not use llvm-upgrade.
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48483 91177308-0d34-0410-b5e6-96231b3b80d8
2008-03-18 03:45:45 +00:00
Chris Lattner
e2ece3f479
rename function to avoid llvm-upgrade warning
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@39895 91177308-0d34-0410-b5e6-96231b3b80d8
2007-07-16 04:09:00 +00:00
Reid Spencer
7c65d4345e
For PR1319:
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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
2b544beda3
For PR1319:
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Upgrade tests to work with new llvm.exp version of llvm_runtest.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36013 91177308-0d34-0410-b5e6-96231b3b80d8
2007-04-14 20:13:02 +00:00
Reid Spencer
69ccadd753
Use the llvm-upgrade program to upgrade llvm assembly.
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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
19e40ade3d
Handle the unsigned form as well
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11739 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 06:37:33 +00:00
Chris Lattner
f4821745df
Add a slight variant of test10
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11736 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 05:59:52 +00:00
Chris Lattner
1dda055e55
This multiply can be eliminated
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11733 91177308-0d34-0410-b5e6-96231b3b80d8
2004-02-23 05:38:47 +00:00
Misha Brukman
e78760e179
Renamed as' =>
llvm-as', dis' =>
llvm-dis', link' =>
llvm-link'.
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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
53dce0c43f
New testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8487 91177308-0d34-0410-b5e6-96231b3b80d8
2003-09-11 22:23:48 +00:00
Chris Lattner
060c1f816c
Remove usage of grep-not script
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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
ab1a525163
Fix testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6952 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-28 22:31:37 +00:00
Chris Lattner
d4c914f062
Add test for instcombine -1*X -> -X
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@6905 91177308-0d34-0410-b5e6-96231b3b80d8
2003-06-25 17:10:34 +00:00
Chris Lattner
1b77300154
* Add testcases for associative operators
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* Add testcase for or ubyte, 255 which was broken before
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5735 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-10 22:43:56 +00:00
Chris Lattner
2bd37807d0
Modernize testcase
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5732 91177308-0d34-0410-b5e6-96231b3b80d8
2003-03-10 19:44:01 +00:00
Chris Lattner
5640f33331
test for a variety of new transformations:
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* A & ~A == 0
* A / (2^c) == A >> c if unsigned
* 0 / A == 0
* 1.0 * A == A
* A * (2^c) == A << c
* A ^ ~A == -1
* A | ~A == -1
* 0 % X = 0
* A % (2^c) == A & (c-1) if unsigned
* A - (A & B) == A & ~B
* -1 - A == ~A
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5588 91177308-0d34-0410-b5e6-96231b3b80d8
2003-02-18 19:28:47 +00:00
Chris Lattner
4a6e4b30b4
These tests should not run -dce pass to cleanup instcombine.
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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
efc01f62c6
New test cases for mul folding
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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@2416 91177308-0d34-0410-b5e6-96231b3b80d8
2002-04-29 22:24:24 +00:00