1 files changed, 57 insertions, 0 deletions
diff --git a/winsup/cygwin/math/nearbyint.S b/winsup/cygwin/math/nearbyint.S
new file mode 100644
index 000000000..8aec9bdb0
--- /dev/null
+++ b/winsup/cygwin/math/nearbyint.S
@@ -0,0 +1,57 @@
+/**
+ * This file has no copyright assigned and is placed in the Public Domain.
+ * This file is part of the mingw-w64 runtime package.
+ * No warranty is given; refer to the file DISCLAIMER.PD within this package.
+ */
+#include <_mingw_mac.h>
+
+	.file	"nearbyint.S"
+	.text
+#ifdef __x86_64__
+	.align 8
+#else
+	.align 4
+#endif
+	.globl __MINGW_USYMBOL(nearbyint)
+	.def	__MINGW_USYMBOL(nearbyint);	.scl	2;	.type	32;	.endef
+__MINGW_USYMBOL(nearbyint):
+#if defined(_AMD64_) || defined(__x86_64__)
+	movsd	%xmm0,-16(%rsp)
+	fldl	-16(%rsp)
+	pushq	%rax
+	pushq	%rcx
+	fnstcw	(%rsp)
+	movq	(%rsp), %rax
+	orq	$0x20, %rax
+	movq	%rax, 8(%rsp)
+	fldcw	8(%rsp)
+	frndint
+	fclex
+	fldcw	(%rsp)
+	popq	%rcx
+	popq	%rax
+	fstpl	-16(%rsp)
+	movsd	-16(%rsp),%xmm0
+	ret
+#elif defined(_ARM_) || defined(__arm__)
+	vmrs	r1, fpscr
+	vcvtr.s32.f64	s0, d0
+	vcvt.f64.s32	d0, s0
+	vmsr	fpscr, r1
+	bx	lr
+#elif defined(_X86_) || defined(__i386__)
+	fldl	4(%esp)
+	pushl	%eax
+	pushl	%ecx
+	fnstcw	(%esp)
+	movl	(%esp), %eax
+	orl	$0x20, %eax
+	movl	%eax, 4(%esp)
+	fldcw	4(%esp)
+	frndint
+	fclex
+	fldcw	(%esp)
+	popl	%ecx
+	popl	%eax
+	ret
+#endif