Nick Lewycky
1e075d9a40
Emitting raw bytecode is awfully rude. Add -disable-output.
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Clarify the test.
llvm-svn: 31251
2006-10-28 02:34:41 +00:00
Reid Spencer
a98dac4715
Improve cvs ignoring of test results.
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llvm-svn: 31217
2006-10-27 16:43:34 +00:00
Nick Lewycky
a1ce6dcbf3
Handling of setlt/le/gt/ge is broken at the moment; predsimplify removes
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the call the pass2.
llvm-svn: 31192
2006-10-26 02:33:51 +00:00
Nick Lewycky
314ee3ecf0
This testcase was logically wrong! Fixing, and including the test for the
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mistake that I made in the file too.
llvm-svn: 31190
2006-10-26 00:51:58 +00:00
Nick Lewycky
2c734f3fc1
Handle "if ((x|y) != 0)" for ints like we do for bools. Fixes missed
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optimization opportunity pointed out by Chris Lattner.
llvm-svn: 31118
2006-10-22 21:36:41 +00:00
Nick Lewycky
f345008339
AllocaInst can't return a null pointer. Fixes missed optimization
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opportunity pointed out by Andrew Lewycky.
llvm-svn: 31115
2006-10-22 19:53:27 +00:00
Nick Lewycky
755f801adc
Move break-crit-edges before the predicate simplifier. Allows us to
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optimize in more cases.
llvm-svn: 30699
2006-10-03 14:52:23 +00:00
Nick Lewycky
d74c55f483
Once we're down to "setcc type constant1, constant2", at least come up
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with the right answer.
llvm-svn: 30550
2006-09-20 23:02:24 +00:00
Nick Lewycky
cfff1c3f86
Use a total ordering to compare instructions.
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Fixes infinite loop in resolve().
llvm-svn: 30540
2006-09-20 17:04:01 +00:00
Nick Lewycky
5cc1e9b51d
Enable dejagnu tests for predicate simplifier.
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llvm-svn: 30475
2006-09-19 00:31:54 +00:00
Nick Lewycky
9a22d7b60f
Replace EquivalenceClasses with a custom-built data structure. Many common
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operations (like findProperties) should be faster, at the expense of
unionSets being slower in cases that are rare in practise.
Don't erase a dead Instruction. This fixes a memory corruption issue.
llvm-svn: 30235
2006-09-10 02:27:07 +00:00
Nick Lewycky
8e5599354a
Improve handling of SelectInst.
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Reorder operations to remove duplicated work.
Fix to leave floating-point types out of the optimization.
Add tests to predsimplify.ll for SwitchInst and SelectInst handling.
llvm-svn: 30055
2006-09-02 19:40:38 +00:00
Nick Lewycky
a24fdaea0b
This program crashes the PredicateSimplifier. Not marked XFAIL because
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the PredicateSimplifier is skipped in make check anyways.
llvm-svn: 29992
2006-08-31 03:13:05 +00:00
Nick Lewycky
b2e8ae1700
Add PredicateSimplifier pass. Collapses equal variables into one form
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and simplifies expressions. This implements the optimization described
in PR807.
llvm-svn: 29947
2006-08-28 22:44:55 +00:00