Commit Graph

9 Commits

Author SHA1 Message Date
Matt Arsenault 8fd5978811 Revert "Revert "Revert "InstCombine: Reduce trunc (shl x, K) width."""
This seems to be causing an infinite loop / crash in instcombine
on some bots.

llvm-svn: 273069
2016-06-17 23:36:38 +00:00
Matt Arsenault d76efc14b9 Revert "Revert "InstCombine: Reduce trunc (shl x, K) width.""
Reapply r272987. Condition should be in terms of the destination type,
and the flags should not be copied.

llvm-svn: 273045
2016-06-17 20:33:53 +00:00
Matt Arsenault ce56f7bbaa Revert "InstCombine: Reduce trunc (shl x, K) width."
This reverts commit r272987.

This might be causing crashes on some bots.

llvm-svn: 272990
2016-06-17 06:28:53 +00:00
Matt Arsenault 028fd50642 InstCombine: Reduce trunc (shl x, K) width.
llvm-svn: 272987
2016-06-17 04:43:22 +00:00
David Blaikie a79ac14fa6 [opaque pointer type] Add textual IR support for explicit type parameter to load instruction
Essentially the same as the GEP change in r230786.

A similar migration script can be used to update test cases, though a few more
test case improvements/changes were required this time around: (r229269-r229278)

import fileinput
import sys
import re

pat = re.compile(r"((?:=|:|^)\s*load (?:atomic )?(?:volatile )?(.*?))(| addrspace\(\d+\) *)\*($| *(?:%|@|null|undef|blockaddress|getelementptr|addrspacecast|bitcast|inttoptr|\[\[[a-zA-Z]|\{\{).*$)")

for line in sys.stdin:
  sys.stdout.write(re.sub(pat, r"\1, \2\3*\4", line))

Reviewers: rafael, dexonsmith, grosser

Differential Revision: http://reviews.llvm.org/D7649

llvm-svn: 230794
2015-02-27 21:17:42 +00:00
Stuart Hastings 2380483355 Reapply 132348 with fixes. rdar://problem/6501862
llvm-svn: 132402
2011-06-01 16:42:47 +00:00
Stuart Hastings 9d6a06d536 Revert to pacify a buildbot. rdar://problem/6501862
llvm-svn: 132351
2011-05-31 19:56:35 +00:00
Stuart Hastings 780f723309 Followup to 132316; accept arbitrary constants, add with a constant,
sub with a non-constant.  Fix comments, enlarge test case.
rdar://problem/6501862

llvm-svn: 132348
2011-05-31 19:29:55 +00:00
Stuart Hastings 8284374b07 (1 - X) * (-2) -> (x - 1) * 2, for all positive nonzero powers of 2
rdar://problem/6501862

llvm-svn: 132316
2011-05-30 20:00:33 +00:00