Justin Bogner 08154bf3d2 IR: Make the X / undef -> undef fold match the comment ... The constant folding for sdiv and udiv has a big discrepancy between the comments and the code, which looks like a typo. Currently, we're folding X / undef pretty inconsistently: 0 / undef -> undef C / undef -> 0 undef / undef -> 0 Whereas the comments state we do X / undef -> undef. The logic that returns zero is actually commented as doing undef / X -> 0, despite that the LHS isn't undef in many of the cases that hit it. llvm-svn: 261813		2016-02-25 01:02:18 +00:00
..
2010-12-20-Boolean.ll	…
2011-01-14-Thread.ll	…
2011-02-01-Vector.ll	…
2011-09-05-InsertExtractValue.ll	[InstSimplify] Don't assume getAggregateElement will succeed	2015-08-18 22:07:25 +00:00
2011-10-27-BinOpCrash.ll	[opaque pointer type] Add textual IR support for explicit type parameter to gep operator	2015-03-13 18:20:45 +00:00
2011-11-23-MaskedBitsCrash.ll	…
2013-04-19-ConstantFoldingCrash.ll	…
AndOrXor.ll	…
add-mask.ll	[ValueTracking] Recognize that and(x, add (x, -1)) clears the low bit	2015-11-10 18:46:14 +00:00
apint-or.ll	Merge or combine tests and convert to FileCheck.	2015-09-08 18:36:56 +00:00
assume.ll	…
bswap.ll	Extend known bits to understand @llvm.bswap	2015-10-06 20:20:45 +00:00
call-callconv.ll	[opaque pointer type] Add textual IR support for explicit type parameter to gep operator	2015-03-13 18:20:45 +00:00
call.ll	[MemoryBuiltins] Remove isOperatorNewLike by consolidating non-null inference handling	2016-01-04 22:49:23 +00:00
compare.ll	Add a test case to show isKnownNonZero() returns correctly; NFC	2016-02-11 17:11:49 +00:00
dead-code-removal.ll	…
exact-nsw-nuw.ll	…
fast-math.ll	[InstSimplify] Allow folding of fdiv X, X with just NaNs ignored	2015-06-16 14:57:29 +00:00
fdiv.ll	…
floating-point-arithmetic.ll	…
floating-point-compare.ll	CannotBeOrderedLessThanZero: add some missing cases	2016-01-12 23:37:30 +00:00
fold-builtin-fma.ll	…
gep.ll	[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction	2015-02-27 19:29:02 +00:00
implies.ll	[ValueTracking] Teach isImpliedCondition a new bitwise trick	2015-11-10 23:56:20 +00:00
load.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00
maxmin.ll	…
noalias-ptr.ll	[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction	2015-02-27 19:29:02 +00:00
past-the-end.ll	[opaque pointer type] Add textual IR support for explicit type parameter to gep operator	2015-03-13 18:20:45 +00:00
phi.ll	…
ptr_diff.ll	[opaque pointer type] Add textual IR support for explicit type parameter to getelementptr instruction	2015-02-27 19:29:02 +00:00
reassociate.ll	…
rem.ll	…
select.ll	…
shift-128-kb.ll	Handle non-constant shifts in computeKnownBits, and use computeKnownBits for constant folding in InstCombine/Simplify	2015-10-23 20:37:08 +00:00
shr-nop.ll	Fix CHECK directives that weren't checking.	2015-08-31 21:10:35 +00:00
undef.ll	IR: Make the X / undef -> undef fold match the comment	2016-02-25 01:02:18 +00:00
vector_gep.ll	[opaque pointer type] Add textual IR support for explicit type parameter to gep operator	2015-03-13 18:20:45 +00:00
vector_ptr_bitcast.ll	[opaque pointer type] Add textual IR support for explicit type parameter to load instruction	2015-02-27 21:17:42 +00:00