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authorAlexander Monakov <amonakov@ispras.ru>2020-01-11 18:14:24 +0300
committerRich Felker <dalias@aerifal.cx>2020-03-24 16:31:36 -0400
commit9443f1b5cfeba687f45b96572378519e81ff9a56 (patch)
tree1bcb10b7cb7fc99c21cccd556dae541cc04214ff /src/math/i386
parent6bbdbfdcdeac216c4a13edd04dee1f6d87bd33c8 (diff)
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math: move x87-family lrint functions to C with inline asm
Diffstat (limited to 'src/math/i386')
-rw-r--r--src/math/i386/llrint.c8
-rw-r--r--src/math/i386/llrint.s8
-rw-r--r--src/math/i386/llrintf.c8
-rw-r--r--src/math/i386/llrintf.s9
-rw-r--r--src/math/i386/llrintl.c8
-rw-r--r--src/math/i386/llrintl.s8
-rw-r--r--src/math/i386/lrint.c8
-rw-r--r--src/math/i386/lrint.s7
-rw-r--r--src/math/i386/lrintf.c8
-rw-r--r--src/math/i386/lrintf.s7
-rw-r--r--src/math/i386/lrintl.c8
-rw-r--r--src/math/i386/lrintl.s7
12 files changed, 48 insertions, 46 deletions
diff --git a/src/math/i386/llrint.c b/src/math/i386/llrint.c
new file mode 100644
index 00000000..aa400817
--- /dev/null
+++ b/src/math/i386/llrint.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long long llrint(double x)
+{
+ long long r;
+ __asm__ ("fistpll %0" : "=m"(r) : "t"(x) : "st");
+ return r;
+}
diff --git a/src/math/i386/llrint.s b/src/math/i386/llrint.s
deleted file mode 100644
index 8e89cd91..00000000
--- a/src/math/i386/llrint.s
+++ /dev/null
@@ -1,8 +0,0 @@
-.global llrint
-.type llrint,@function
-llrint:
- fldl 4(%esp)
- fistpll 4(%esp)
- mov 4(%esp),%eax
- mov 8(%esp),%edx
- ret
diff --git a/src/math/i386/llrintf.c b/src/math/i386/llrintf.c
new file mode 100644
index 00000000..c41a317b
--- /dev/null
+++ b/src/math/i386/llrintf.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long long llrintf(float x)
+{
+ long long r;
+ __asm__ ("fistpll %0" : "=m"(r) : "t"(x) : "st");
+ return r;
+}
diff --git a/src/math/i386/llrintf.s b/src/math/i386/llrintf.s
deleted file mode 100644
index aa850c6c..00000000
--- a/src/math/i386/llrintf.s
+++ /dev/null
@@ -1,9 +0,0 @@
-.global llrintf
-.type llrintf,@function
-llrintf:
- sub $8,%esp
- flds 12(%esp)
- fistpll (%esp)
- pop %eax
- pop %edx
- ret
diff --git a/src/math/i386/llrintl.c b/src/math/i386/llrintl.c
new file mode 100644
index 00000000..c439ef28
--- /dev/null
+++ b/src/math/i386/llrintl.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long long llrintl(long double x)
+{
+ long long r;
+ __asm__ ("fistpll %0" : "=m"(r) : "t"(x) : "st");
+ return r;
+}
diff --git a/src/math/i386/llrintl.s b/src/math/i386/llrintl.s
deleted file mode 100644
index 1cfb56f1..00000000
--- a/src/math/i386/llrintl.s
+++ /dev/null
@@ -1,8 +0,0 @@
-.global llrintl
-.type llrintl,@function
-llrintl:
- fldt 4(%esp)
- fistpll 4(%esp)
- mov 4(%esp),%eax
- mov 8(%esp),%edx
- ret
diff --git a/src/math/i386/lrint.c b/src/math/i386/lrint.c
new file mode 100644
index 00000000..89563ab2
--- /dev/null
+++ b/src/math/i386/lrint.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long lrint(double x)
+{
+ long r;
+ __asm__ ("fistpl %0" : "=m"(r) : "t"(x) : "st");
+ return r;
+}
diff --git a/src/math/i386/lrint.s b/src/math/i386/lrint.s
deleted file mode 100644
index 02b83d9f..00000000
--- a/src/math/i386/lrint.s
+++ /dev/null
@@ -1,7 +0,0 @@
-.global lrint
-.type lrint,@function
-lrint:
- fldl 4(%esp)
- fistpl 4(%esp)
- mov 4(%esp),%eax
- ret
diff --git a/src/math/i386/lrintf.c b/src/math/i386/lrintf.c
new file mode 100644
index 00000000..0bbf29de
--- /dev/null
+++ b/src/math/i386/lrintf.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long lrintf(float x)
+{
+ long r;
+ __asm__ ("fistpl %0" : "=m"(r) : "t"(x) : "st");
+ return r;
+}
diff --git a/src/math/i386/lrintf.s b/src/math/i386/lrintf.s
deleted file mode 100644
index 907aac29..00000000
--- a/src/math/i386/lrintf.s
+++ /dev/null
@@ -1,7 +0,0 @@
-.global lrintf
-.type lrintf,@function
-lrintf:
- flds 4(%esp)
- fistpl 4(%esp)
- mov 4(%esp),%eax
- ret
diff --git a/src/math/i386/lrintl.c b/src/math/i386/lrintl.c
new file mode 100644
index 00000000..eb8c0902
--- /dev/null
+++ b/src/math/i386/lrintl.c
@@ -0,0 +1,8 @@
+#include <math.h>
+
+long lrintl(long double x)
+{
+ long r;
+ __asm__ ("fistpl %0" : "=m"(r) : "t"(x) : "st");
+ return r;
+}
diff --git a/src/math/i386/lrintl.s b/src/math/i386/lrintl.s
deleted file mode 100644
index 3ae05aac..00000000
--- a/src/math/i386/lrintl.s
+++ /dev/null
@@ -1,7 +0,0 @@
-.global lrintl
-.type lrintl,@function
-lrintl:
- fldt 4(%esp)
- fistpl 4(%esp)
- mov 4(%esp),%eax
- ret