llvm::getDisjunctionWeights

Synopsis

Declared in <llvm/IR/ProfDataUtils.h>

template<
    typename T1,
    typename T2,
    typename = std::enable_if<std::is_arithmetic_v<T1> && std::is_arithmetic_v<T2> && sizeof(T1) <= sizeof(uint64_t) && sizeof(T2) <= sizeof(uint64_t)>>
SmallVector<uint64_t, 2>
getDisjunctionWeights(
    SmallVector<T1, 2> const& B1,
    SmallVector<T2, 2> const& B2);

Description

b1 and b2 are 2 booleans that are the conditions of 2 branches for which we have the branch weights B1 and B2, respectively. In both B1 and B2, the first position (index 0) is for the 'true' branch, and the second position (index 1) is for the 'false' branch.

Return Value

Branch weights for the disjunction, [true, false].

Parameters

Name	Description
B1	Branch weights of the first condition, [true, false].
B2	Branch weights of the second condition, [true, false].