+/// 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);
+}
+
+/// This turns an int stack alignment (which must be a power of 2) into
+/// the form used internally in Attributes.
+inline Attributes constructStackAlignmentFromInt(unsigned i) {
+ // Default alignment, allow the target to define how to align it.
+ if (i == 0)
+ return 0;
+
+ assert(isPowerOf2_32(i) && "Alignment must be a power of two.");
+ assert(i <= 0x100 && "Alignment too large.");
+ return (Log2_32(i)+1) << 26;
+}
+
+/// This returns the stack alignment field of an attribute as a byte alignment
+/// value.
+inline unsigned getStackAlignmentFromAttrs(Attributes A) {
+ Attributes StackAlign = A & Attribute::StackAlignment;
+ if (StackAlign == 0)
+ return 0;
+
+ return 1U << ((StackAlign >> 26) - 1);
+}
+
+