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Add a new attribute: norecurse

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This attribute allows the compiler to assume that the function never recurses into itself, either directly or indirectly (transitively). This can be used among other things to demote global variables to locals.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@252282 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
James Molloy
2015-11-06 10:32:53 +00:00
parent 2c55ab4f58
commit d001932f3a
19 changed files with 49 additions and 14 deletions
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2
lib/Bitcode/Reader/BitcodeReader.cpp
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@@ -1305,6 +1305,8 @@ static Attribute::AttrKind getAttrFromCode(uint64_t Code) {
return Attribute::NoImplicitFloat;
case bitc::ATTR_KIND_NO_INLINE:
return Attribute::NoInline;
case bitc::ATTR_KIND_NO_RECURSE:
return Attribute::NoRecurse;
case bitc::ATTR_KIND_NON_LAZY_BIND:
return Attribute::NonLazyBind;
case bitc::ATTR_KIND_NON_NULL: