From 6bbdbfdcdeac216c4a13edd04dee1f6d87bd33c8 Mon Sep 17 00:00:00 2001
From: Alexander Monakov <amonakov@ispras.ru>
Date: Fri, 10 Jan 2020 23:06:36 +0300
Subject: [PATCH] math: move x86_64 (l)lrint(f) functions to C with inline asm

---
 src/math/x86_64/llrint.c  | 8 ++++++++
 src/math/x86_64/llrint.s  | 5 -----
 src/math/x86_64/llrintf.c | 8 ++++++++
 src/math/x86_64/llrintf.s | 5 -----
 src/math/x86_64/lrint.c   | 8 ++++++++
 src/math/x86_64/lrint.s   | 5 -----
 src/math/x86_64/lrintf.c  | 8 ++++++++
 src/math/x86_64/lrintf.s  | 5 -----
 8 files changed, 32 insertions(+), 20 deletions(-)
 create mode 100644 src/math/x86_64/llrint.c
 delete mode 100644 src/math/x86_64/llrint.s
 create mode 100644 src/math/x86_64/llrintf.c
 delete mode 100644 src/math/x86_64/llrintf.s
 create mode 100644 src/math/x86_64/lrint.c
 delete mode 100644 src/math/x86_64/lrint.s
 create mode 100644 src/math/x86_64/lrintf.c
 delete mode 100644 src/math/x86_64/lrintf.s

diff --git a/src/math/x86_64/llrint.c b/src/math/x86_64/llrint.c
new file mode 100644
index 00000000..dd38a722
--- /dev/null
+++ b/src/math/x86_64/llrint.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long long llrint(double x)
+{
+	long long r;
+	__asm__ ("cvtsd2si %1, %0" : "=r"(r) : "x"(x));
+	return r;
+}
diff --git a/src/math/x86_64/llrint.s b/src/math/x86_64/llrint.s
deleted file mode 100644
index bf476498..00000000
--- a/src/math/x86_64/llrint.s
+++ /dev/null
@@ -1,5 +0,0 @@
-.global llrint
-.type llrint,@function
-llrint:
-	cvtsd2si %xmm0,%rax
-	ret
diff --git a/src/math/x86_64/llrintf.c b/src/math/x86_64/llrintf.c
new file mode 100644
index 00000000..fc8625e8
--- /dev/null
+++ b/src/math/x86_64/llrintf.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long long llrintf(float x)
+{
+	long long r;
+	__asm__ ("cvtss2si %1, %0" : "=r"(r) : "x"(x));
+	return r;
+}
diff --git a/src/math/x86_64/llrintf.s b/src/math/x86_64/llrintf.s
deleted file mode 100644
index d7204ac0..00000000
--- a/src/math/x86_64/llrintf.s
+++ /dev/null
@@ -1,5 +0,0 @@
-.global llrintf
-.type llrintf,@function
-llrintf:
-	cvtss2si %xmm0,%rax
-	ret
diff --git a/src/math/x86_64/lrint.c b/src/math/x86_64/lrint.c
new file mode 100644
index 00000000..a742fec6
--- /dev/null
+++ b/src/math/x86_64/lrint.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long lrint(double x)
+{
+	long r;
+	__asm__ ("cvtsd2si %1, %0" : "=r"(r) : "x"(x));
+	return r;
+}
diff --git a/src/math/x86_64/lrint.s b/src/math/x86_64/lrint.s
deleted file mode 100644
index 15fc2454..00000000
--- a/src/math/x86_64/lrint.s
+++ /dev/null
@@ -1,5 +0,0 @@
-.global lrint
-.type lrint,@function
-lrint:
-	cvtsd2si %xmm0,%rax
-	ret
diff --git a/src/math/x86_64/lrintf.c b/src/math/x86_64/lrintf.c
new file mode 100644
index 00000000..2ba5639d
--- /dev/null
+++ b/src/math/x86_64/lrintf.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long lrintf(float x)
+{
+	long r;
+	__asm__ ("cvtss2si %1, %0" : "=r"(r) : "x"(x));
+	return r;
+}
diff --git a/src/math/x86_64/lrintf.s b/src/math/x86_64/lrintf.s
deleted file mode 100644
index 488423d2..00000000
--- a/src/math/x86_64/lrintf.s
+++ /dev/null
@@ -1,5 +0,0 @@
-.global lrintf
-.type lrintf,@function
-lrintf:
-	cvtss2si %xmm0,%rax
-	ret
-- 
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