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emitter: constexpr-ify helper functions

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Lioncash 2016-03-09 02:38:28 -05:00
parent e66a6a2a1b
commit 1351c0ce9f
1 changed files with 17 additions and 19 deletions
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36
src/common/x64/emitter.h
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@ -236,43 +236,41 @@ private:
u16 operandReg = 0;
};
inline OpArg M(const void *ptr) {return OpArg((u64)ptr, (int)SCALE_RIP);}
template <typename T>
inline OpArg M(const T *ptr) {return OpArg((u64)(const void *)ptr, (int)SCALE_RIP);}
inline OpArg R(X64Reg value) {return OpArg(0, SCALE_NONE, value);}
inline OpArg MatR(X64Reg value) {return OpArg(0, SCALE_ATREG, value);}
inline OpArg M(const T *ptr) { return OpArg(reinterpret_cast<u64>(ptr), static_cast<int>(SCALE_RIP)); }
constexpr OpArg R(X64Reg value) { return OpArg(0, SCALE_NONE, value); }
constexpr OpArg MatR(X64Reg value) { return OpArg(0, SCALE_ATREG, value); }
inline OpArg MDisp(X64Reg value, int offset)
constexpr OpArg MDisp(X64Reg value, int offset)
{
return OpArg((u32)offset, SCALE_ATREG, value);
return OpArg(static_cast<u32>(offset), SCALE_ATREG, value);
}
inline OpArg MComplex(X64Reg base, X64Reg scaled, int scale, int offset)
constexpr OpArg MComplex(X64Reg base, X64Reg scaled, int scale, int offset)
{
return OpArg(offset, scale, base, scaled);
}
inline OpArg MScaled(X64Reg scaled, int scale, int offset)
constexpr OpArg MScaled(X64Reg scaled, int scale, int offset)
{
if (scale == SCALE_1)
return OpArg(offset, SCALE_ATREG, scaled);
else
return OpArg(offset, scale | 0x20, RAX, scaled);
return scale == SCALE_1
? OpArg(offset, SCALE_ATREG, scaled)
: OpArg(offset, scale | 0x20, RAX, scaled);
}
inline OpArg MRegSum(X64Reg base, X64Reg offset)
constexpr OpArg MRegSum(X64Reg base, X64Reg offset)
{
return MComplex(base, offset, 1, 0);
}
inline OpArg Imm8 (u8 imm) {return OpArg(imm, SCALE_IMM8);}
inline OpArg Imm16(u16 imm) {return OpArg(imm, SCALE_IMM16);} //rarely used
inline OpArg Imm32(u32 imm) {return OpArg(imm, SCALE_IMM32);}
inline OpArg Imm64(u64 imm) {return OpArg(imm, SCALE_IMM64);}
inline OpArg UImmAuto(u32 imm) {
constexpr OpArg Imm8 (u8 imm) { return OpArg(imm, SCALE_IMM8); }
constexpr OpArg Imm16(u16 imm) { return OpArg(imm, SCALE_IMM16); } //rarely used
constexpr OpArg Imm32(u32 imm) { return OpArg(imm, SCALE_IMM32); }
constexpr OpArg Imm64(u64 imm) { return OpArg(imm, SCALE_IMM64); }
constexpr OpArg UImmAuto(u32 imm) {
return OpArg(imm, imm >= 128 ? SCALE_IMM32 : SCALE_IMM8);
}
inline OpArg SImmAuto(s32 imm) {
constexpr OpArg SImmAuto(s32 imm) {
return OpArg(imm, (imm >= 128 || imm < -128) ? SCALE_IMM32 : SCALE_IMM8);
}