From 1351c0ce9f2029f695ee47605c99655f078d3c01 Mon Sep 17 00:00:00 2001
From: Lioncash <mathew1800@gmail.com>
Date: Wed, 9 Mar 2016 02:38:28 -0500
Subject: emitter: constexpr-ify helper functions

---
 src/common/x64/emitter.h | 36 +++++++++++++++++-------------------
 1 file changed, 17 insertions(+), 19 deletions(-)

(limited to 'src/common/x64')

diff --git a/src/common/x64/emitter.h b/src/common/x64/emitter.h
index a1d8ab31f..865b724a8 100644
--- a/src/common/x64/emitter.h
+++ b/src/common/x64/emitter.h
@@ -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);
 }
 
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