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Author SHA1 Message Date
Matthew Simpson c1c4ad6e64 [ConstantFolding, InstSimplify] Handle more vector GEPs 
This patch addresses some additional cases where the compiler crashes upon
encountering vector GEPs. This should fix PR36116.

Differential Revision: https://reviews.llvm.org/D44219
Reference: https://bugs.llvm.org/show_bug.cgi?id=36116

llvm-svn: 327638
 2018-03-15 16:00:29 +00:00
Michael Kuperstein dd92c78669 [ConstantFolding] Fix vector GEPs harder 
For vector GEPs, CastGEPIndices can end up in an infinite recursion, because
we compare the vector type to the scalar pointer type, find them different,
and then try to cast a type to itself.

Differential Revision: https://reviews.llvm.org/D28009

llvm-svn: 290260
 2016-12-21 17:34:21 +00:00
Keno Fischer dc09119776 ConstantFolding: Don't crash when encountering vector GEP 
ConstantFolding tried to cast one of the scalar indices to a vector
type. Instead, use the vector type only for the first index (which
is the only one allowed to be a vector) and use its scalar type
otherwise.

Fixes PR31250.

Reviewers: majnemer
Differential Revision: https://reviews.llvm.org/D27389

llvm-svn: 289073
 2016-12-08 17:22:35 +00:00