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Make EXTRACT_VECTOR_ELT a bit more flexible in terms of the returned

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value.  Adjust other code to deal with that correctly.  Make 
DAGTypeLegalizer::PromoteIntRes_EXTRACT_VECTOR_ELT take advantage of 
this new flexibility to simplify the code and make it deal with unusual 
vectors (like <4 x i1>) correctly.  Fixes PR3037.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75176 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eli Friedman
2009-07-09 22:01:03 +00:00
parent 6dded67b0d
commit c680ac9003
7 changed files with 46 additions and 56 deletions
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4
include/llvm/CodeGen/SelectionDAGNodes.h
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@@ -303,7 +303,9 @@ namespace ISD {
INSERT_VECTOR_ELT,
/// EXTRACT_VECTOR_ELT(VECTOR, IDX) - Returns a single element from VECTOR
/// identified by the (potentially variable) element number IDX.
/// identified by the (potentially variable) element number IDX. If the
/// return type is an integer type larger than the element type of the
/// vector, the result is extended to the width of the return type.
EXTRACT_VECTOR_ELT,
/// CONCAT_VECTORS(VECTOR0, VECTOR1, ...) - Given a number of values of