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Add 'nonnull', a new parameter and return attribute which indicates that the pointer is not null. Instcombine will elide comparisons between these and null. Patch by Luqman Aden!

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@209185 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Nick Lewycky
2014-05-20 01:23:40 +00:00
parent 30e5830301
commit fe47ebfad3
14 changed files with 44 additions and 4 deletions
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2
lib/Bitcode/Writer/BitcodeWriter.cpp
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@ -197,6 +197,8 @@ static uint64_t getAttrKindEncoding(Attribute::AttrKind Kind) {
return bitc::ATTR_KIND_NO_INLINE;
case Attribute::NonLazyBind:
return bitc::ATTR_KIND_NON_LAZY_BIND;
case Attribute::NonNull:
return bitc::ATTR_KIND_NON_NULL;
case Attribute::NoRedZone:
return bitc::ATTR_KIND_NO_RED_ZONE;
case Attribute::NoReturn: