diff options
| author | Lioncash <mathew1800@gmail.com> | 2022-01-26 16:29:13 -0500 |
|---|---|---|
| committer | Lioncash <mathew1800@gmail.com> | 2022-01-26 16:29:15 -0500 |
| commit | f6a049337ec17dee986e28fc050ddbe55bd2ac70 (patch) | |
| tree | 5ed1c14b66c6ff409314c49918e70dea70c22450 /src/common | |
| parent | 40050c1188ecae2688488e8109b708e04295b480 (diff) | |
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.
Diffstat (limited to 'src/common')
| -rw-r--r-- | src/common/x64/xbyak_abi.h | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/common/x64/xbyak_abi.h b/src/common/x64/xbyak_abi.h index 0ddf9b83e..87b3d63a4 100644 --- a/src/common/x64/xbyak_abi.h +++ b/src/common/x64/xbyak_abi.h @@ -37,12 +37,12 @@ constexpr Xbyak::Reg IndexToReg(size_t reg_index) { } } -inline std::bitset<32> BuildRegSet(std::initializer_list<Xbyak::Reg> regs) { - std::bitset<32> bits; +constexpr std::bitset<32> BuildRegSet(std::initializer_list<Xbyak::Reg> regs) { + size_t bits = 0; 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); @@ -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_PARAM4 = Xbyak::util::r9; -const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({ +constexpr inline std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({ // GPRs Xbyak::util::rcx, Xbyak::util::rdx, @@ -74,7 +74,7 @@ const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({ Xbyak::util::xmm5, }); -const std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({ +constexpr inline std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({ // GPRs Xbyak::util::rbx, 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_PARAM4 = Xbyak::util::rcx; -const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({ +constexpr inline std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({ // GPRs Xbyak::util::rcx, Xbyak::util::rdx, @@ -137,7 +137,7 @@ const std::bitset<32> ABI_ALL_CALLER_SAVED = BuildRegSet({ Xbyak::util::xmm15, }); -const std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({ +constexpr inline std::bitset<32> ABI_ALL_CALLEE_SAVED = BuildRegSet({ // GPRs Xbyak::util::rbx, Xbyak::util::rbp, |