From 4a1ce797cb5e8ceb94eb407e118d7df81800ac1a Mon Sep 17 00:00:00 2001
From: MerryMage <MerryMage@users.noreply.github.com>
Date: Fri, 3 Aug 2018 11:46:11 +0100
Subject: [PATCH] emit_x64_vector_floating_point: Simplify Get*Vector functions

---
 .../emit_x64_vector_floating_point.cpp        | 31 ++++++++++---------
 1 file changed, 16 insertions(+), 15 deletions(-)

diff --git a/src/backend_x64/emit_x64_vector_floating_point.cpp b/src/backend_x64/emit_x64_vector_floating_point.cpp
index 455f7058..4d468c36 100644
--- a/src/backend_x64/emit_x64_vector_floating_point.cpp
+++ b/src/backend_x64/emit_x64_vector_floating_point.cpp
@@ -123,31 +123,32 @@ void HandleNaNs(BlockOfCode& code, EmitContext& ctx, std::array<Xbyak::Xmm, narg
     code.SwitchToNearCode();
 }
 
+template<size_t fsize, u64 value>
+Xbyak::Address GetVectorOf(BlockOfCode& code) {
+    if constexpr (fsize == 32) {
+        return code.MConst(xword, (value << 32) | value, (value << 32) | value);
+    } else {
+        return code.MConst(xword, value, value);
+    }
+}
+
 template<size_t fsize>
 Xbyak::Address GetNaNVector(BlockOfCode& code) {
-    if constexpr (fsize == 32) {
-        return code.MConst(xword, 0x7fc0'0000'7fc0'0000, 0x7fc0'0000'7fc0'0000);
-    } else {
-        return code.MConst(xword, 0x7ff8'0000'0000'0000, 0x7ff8'0000'0000'0000);
-    }
+    using FPT = mp::unsigned_integer_of_size<fsize>;
+    return GetVectorOf<fsize, FP::FPInfo<FPT>::DefaultNaN()>(code);
 }
 
 template<size_t fsize>
 Xbyak::Address GetNegativeZeroVector(BlockOfCode& code) {
-    if constexpr (fsize == 32) {
-        return code.MConst(xword, 0x8000'0000'8000'0000, 0x8000'0000'8000'0000);
-    } else {
-        return code.MConst(xword, 0x8000'0000'0000'0000, 0x8000'0000'0000'0000);
-    }
+    using FPT = mp::unsigned_integer_of_size<fsize>;
+    return GetVectorOf<fsize, FP::FPInfo<FPT>::Zero(true)>(code);
 }
 
 template<size_t fsize>
 Xbyak::Address GetSmallestNormalVector(BlockOfCode& code) {
-    if constexpr (fsize == 32) {
-        return code.MConst(xword, 0x0080'0000'0080'0000, 0x0080'0000'0080'0000);
-    } else {
-        return code.MConst(xword, 0x0010'0000'0000'0000, 0x0010'0000'0000'0000);
-    }
+    using FPT = mp::unsigned_integer_of_size<fsize>;
+    constexpr FPT smallest_normal_number = FP::FPValue<FPT, false, FP::FPInfo<FPT>::exponent_min, FP::FPInfo<FPT>::implicit_leading_bit>();
+    return GetVectorOf<fsize, smallest_normal_number>(code);
 }
 
 template<size_t fsize>