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8654837372
This fixes https://bugs.llvm.org/show_bug.cgi?id=40110. This implements handling of undef operands for integer intrinsics in ConstantFolding, in particular for the bitcounting intrinsics (ctpop, cttz, ctlz), the with.overflow intrinsics, the saturating math intrinsics and the funnel shift intrinsics. The undef behavior follows what InstSimplify does for the general cas e of non-constant operands. For the bitcount intrinsics (where InstSimplify doesn't do undef handling -- there cannot be a combination of an undef + non-constant operand) I'm using a 0 result if the intrinsic is defined for zero and undef otherwise. Differential Revision: https://reviews.llvm.org/D55950 llvm-svn: 350971 |
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| .. | ||
| 2002-05-03-DivideByZeroException.ll | ||
| 2002-05-03-NotOperator.ll | ||
| 2002-09-03-SetCC-Bools.ll | ||
| 2003-05-12-DivideError.ll | ||
| 2005-01-28-SetCCGEP.ll | ||
| 2006-11-30-vector-cast.ll | ||
| 2006-12-01-bool-casts.ll | ||
| 2006-12-01-TruncBoolBug.ll | ||
| 2007-02-05-BitCast.ll | ||
| 2007-02-23-sdiv.ll | ||
| 2008-07-07-VectorCompare.ll | ||
| 2009-06-20-constexpr-zero-lhs.ll | ||
| 2009-09-01-GEP-Crash.ll | ||
| avx512.ll | ||
| basictest.ll | ||
| bitcast.ll | ||
| bswap.ll | ||
| calls-math-finite.ll | ||
| calls.ll | ||
| cast.ll | ||
| constant-expr.ll | ||
| convert-from-fp16.ll | ||
| div-zero.ll | ||
| extractvalue.ll | ||
| float-to-ptr-cast.ll | ||
| InsertElement.ll | ||
| insertvalue.ll | ||
| loads.ll | ||
| logicaltest.ll | ||
| overflow-ops.ll | ||
| phi.ll | ||
| remtest.ll | ||
| shift.ll | ||
| sse.ll | ||
| trunc_vec.ll | ||