Commit Graph

13 Commits

Author SHA1 Message Date
Dan Gohman 24ceda8eb0 Revert r106304 (105548 and friends), which are the SCEVComplexityCompare
optimizations. There is still some nondeterminism remaining.

llvm-svn: 106306
2010-06-18 19:54:20 +00:00
Dan Gohman 4c807fca97 Reapply 105540, 105542, and 105548, and revert r105732.
llvm-svn: 106304
2010-06-18 19:26:04 +00:00
Daniel Dunbar e16d569932 Workaround SCEV non-determinism on this test, for now, to get buildbots back to
green. Dan, please revert this once the real problem is fixed.

llvm-svn: 105732
2010-06-09 17:54:40 +00:00
Dan Gohman 70910a6ab6 Optimize ScalarEvolution's SCEVComplexityCompare predicate: don't go
scrounging through SCEVUnknown contents and SCEVNAryExpr operands;
instead just do a simple deterministic comparison of the precomputed
hash data.

Also, since this is more precise, it eliminates the need for the slow
N^2 duplicate detection code.

llvm-svn: 105540
2010-06-07 19:06:13 +00:00
Dan Gohman 80386c10d4 -disable-output is no longer needed with -analyze.
llvm-svn: 94574
2010-01-26 19:25:59 +00:00
Edward O'Callaghan f96ce30236 Convert Analysis tests to FileCheck in regards to PR5307.
llvm-svn: 85241
2009-10-27 14:54:46 +00:00
Dan Gohman 1880092722 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.

llvm-svn: 81537
2009-09-11 18:01:28 +00:00
Dan Gohman 9737a63ed8 Change these tests to feed the assembly files to opt directly, instead
of using llvm-as, now that opt supports this.

llvm-svn: 81226
2009-09-08 16:50:01 +00:00
Dan Gohman 8c77f1a275 Make ScalarEvolution::isLoopGuardedByCond work even when the edge
entering a loop is a non-split critical edge.

llvm-svn: 72004
2009-05-18 15:36:09 +00:00
Dan Gohman b81dd48fd2 Add nounwind to a few tests.
llvm-svn: 72002
2009-05-18 15:16:49 +00:00
Dan Gohman 0bddac16a8 Rename ScalarEvolution's getIterationCount to getBackedgeTakenCount,
to more accurately describe what it does. Expand its doxygen comment
to describe what the backedge-taken count is and how it differs
from the actual iteration count of the loop. Adjust names and
comments in associated code accordingly.

llvm-svn: 65382
2009-02-24 18:55:53 +00:00
Dan Gohman 81313fd8d1 Fix WriteAsOperand to not emit a leading space character. Adjust
its callers to emit a space character before calling it when a
space is needed.

This fixes several spurious whitespace issues in
ScalarEvolution's debug dumps. See the test changes for
examples.

This also fixes odd space-after-tab indentation in the output
for switch statements, and changes calls from being printed like
this:
  call void @foo( i32 %x )
to this:
  call void @foo(i32 %x)

llvm-svn: 56196
2008-09-14 17:21:12 +00:00
Eli Friedman 4736916aa6 Another SCEV issue from PR2607; essentially the same issue, but this
time applying to the implicit comparison in smin expressions. The 
correct way to transform an inequality into the opposite 
inequality, either signed or unsigned, is with a not expression.

I looked through the SCEV code, and I don't think there are any more 
occurrences of this issue.

llvm-svn: 54194
2008-07-30 04:36:32 +00:00