Commit Graph

14 Commits

Author SHA1 Message Date
Nick Lewycky 1e075d9a40 Emitting raw bytecode is awfully rude. Add -disable-output.
Clarify the test.

llvm-svn: 31251
2006-10-28 02:34:41 +00:00
Reid Spencer a98dac4715 Improve cvs ignoring of test results.
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
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
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
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
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
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
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.
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.
llvm-svn: 30475
2006-09-19 00:31:54 +00:00
Nick Lewycky 9a22d7b60f Replace EquivalenceClasses with a custom-built data structure. Many common
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.
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
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
and simplifies expressions. This implements the optimization described
in PR807.

llvm-svn: 29947
2006-08-28 22:44:55 +00:00