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Add a new Attribute::getAlignmentFromAttrs method.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@61517 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner 2008-12-31 08:41:38 +00:00
parent 67b9a2abc4
commit 033ff38411
1 changed files with 11 additions and 5 deletions
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16
include/llvm/Attributes.h
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@ -88,6 +88,16 @@ inline Attributes constructAlignmentFromInt(unsigned i) {
return (Log2_32(i)+1) << 16;
}
/// This returns the alignment field of an attribute as a byte alignment value.
inline unsigned getAlignmentFromAttrs(Attributes A) {
Attributes Align = A & Attribute::Alignment;
if (Align == 0)
return 0;
return 1U << ((Align >> 16) - 1);
}
/// The set of Attributes set in Attributes is converted to a
/// string of equivalent mnemonics. This is, presumably, for writing out
/// the mnemonics for the assembly writer.
@ -184,11 +194,7 @@ public:
/// getParamAlignment - Return the alignment for the specified function
/// parameter.
unsigned getParamAlignment(unsigned Idx) const {
Attributes Align = getAttributes(Idx) & Attribute::Alignment;
if (Align == 0)
return 0;
return 1ull << ((Align >> 16) - 1);
return Attribute::getAlignmentFromAttrs(getAttributes(Idx));
}
/// hasAttrSomewhere - Return true if the specified attribute is set for at