common/xbyak_api: Make BuildRegSet() constexpr

This allows us to eliminate any static constructors that would have been
emitted due to the function not being constexpr.
This commit is contained in:
Lioncash 2022-01-26 16:29:13 -05:00
parent 40050c1188
commit f6a049337e
2 changed files with 9 additions and 9 deletions

View File

@ -37,12 +37,12 @@ constexpr Xbyak::Reg IndexToReg(size_t reg_index) {
} }
} }
inline std::bitset<32> BuildRegSet(std::initializer_list<Xbyak::Reg> regs) { constexpr std::bitset<32> BuildRegSet(std::initializer_list<Xbyak::Reg> regs) {
std::bitset<32> bits; size_t bits = 0;
for (const Xbyak::Reg& reg : regs) { for (const Xbyak::Reg& reg : regs) {
bits[RegToIndex(reg)] = true; bits |= size_t{1} << RegToIndex(reg);
} }
return bits; return {bits};
} }
constexpr inline std::bitset<32> ABI_ALL_GPRS(0x0000FFFF); constexpr inline std::bitset<32> ABI_ALL_GPRS(0x0000FFFF);
@ -57,7 +57,7 @@ constexpr inline Xbyak::Reg ABI_PARAM2 = Xbyak::util::rdx;
constexpr inline Xbyak::Reg ABI_PARAM3 = Xbyak::util::r8; constexpr inline Xbyak::Reg ABI_PARAM3 = Xbyak::util::r8;
constexpr inline Xbyak::Reg ABI_PARAM4 = Xbyak::util::r9; constexpr inline Xbyak::Reg ABI_PARAM4 = Xbyak::util::r9;
const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({ constexpr inline std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({
// GPRs // GPRs
Xbyak::util::rcx, Xbyak::util::rcx,
Xbyak::util::rdx, Xbyak::util::rdx,
@ -74,7 +74,7 @@ const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({
Xbyak::util::xmm5, Xbyak::util::xmm5,
}); });
const std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({ constexpr inline std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({
// GPRs // GPRs
Xbyak::util::rbx, Xbyak::util::rbx,
Xbyak::util::rsi, Xbyak::util::rsi,
@ -108,7 +108,7 @@ constexpr inline Xbyak::Reg ABI_PARAM2 = Xbyak::util::rsi;
constexpr inline Xbyak::Reg ABI_PARAM3 = Xbyak::util::rdx; constexpr inline Xbyak::Reg ABI_PARAM3 = Xbyak::util::rdx;
constexpr inline Xbyak::Reg ABI_PARAM4 = Xbyak::util::rcx; constexpr inline Xbyak::Reg ABI_PARAM4 = Xbyak::util::rcx;
const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({ constexpr inline std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({
// GPRs // GPRs
Xbyak::util::rcx, Xbyak::util::rcx,
Xbyak::util::rdx, Xbyak::util::rdx,
@ -137,7 +137,7 @@ const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({
Xbyak::util::xmm15, Xbyak::util::xmm15,
}); });
const std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({ constexpr inline std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({
// GPRs // GPRs
Xbyak::util::rbx, Xbyak::util::rbx,
Xbyak::util::rbp, Xbyak::util::rbp,

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@ -29,7 +29,7 @@ constexpr Xbyak::Reg64 PARAMETERS = Xbyak::util::r12;
constexpr Xbyak::Reg32 METHOD_ADDRESS = Xbyak::util::r14d; constexpr Xbyak::Reg32 METHOD_ADDRESS = Xbyak::util::r14d;
constexpr Xbyak::Reg64 BRANCH_HOLDER = Xbyak::util::r15; constexpr Xbyak::Reg64 BRANCH_HOLDER = Xbyak::util::r15;
const std::bitset<32> PERSISTENT_REGISTERS = Common::X64::BuildRegSet({ constexpr std::bitset<32> PERSISTENT_REGISTERS = Common::X64::BuildRegSet({
STATE, STATE,
RESULT, RESULT,
PARAMETERS, PARAMETERS,