[Mingw-w64-svn] SF.net SVN: mingw-w64:[6636] trunk/mingw-w64-crt/math/copysignl.S

[<daw...@us...>]

Revision: 6636
          http://sourceforge.net/p/mingw-w64/code/6636
Author:   dawncrow
Date:     2014-05-13 23:04:21 +0000 (Tue, 13 May 2014)
Log Message:
-----------
math: Add ARM implementation for copysignl

Modified Paths:
--------------
    trunk/mingw-w64-crt/math/copysignl.S

Modified: trunk/mingw-w64-crt/math/copysignl.S
===================================================================
--- trunk/mingw-w64-crt/math/copysignl.S	2014-05-13 23:03:11 UTC (rev 6635)
+++ trunk/mingw-w64-crt/math/copysignl.S	2014-05-13 23:04:21 UTC (rev 6636)
@@ -18,10 +18,10 @@
 	.align 4
 #endif
 
-.globl __MINGW_USYMBOL(copysignl)
+	.globl __MINGW_USYMBOL(copysignl)
 	.def	__MINGW_USYMBOL(copysignl);	.scl	2;	.type	32;	.endef
 __MINGW_USYMBOL(copysignl):
-#ifdef _WIN64
+#if defined(_AMD64_) || defined(__x86_64__)
 	movq	(%rdx), %rax
 	movq	%rax, (%rcx)
 	movq	8(%rdx), %rax
@@ -32,7 +32,19 @@
 	movq	%rax, 8(%rcx)
 	movq	%rcx, %rax
 	ret
-#else
+#elif defined(_ARM_) || defined(__arm__)
+	fcmpzd	d1
+	fmstat
+	bmi	1f /* jump if d1 is negative */
+	fcmpzd	d0
+	fmstat
+	vnegmi.f64	d0, d0 /* negate d0 if it is negative */
+	bx	lr
+	1: fcmpzd	d0
+	fmstat
+	vnegpl.f64	d0, d0 /* negate d0 if it is positive */
+	bx	lr
+#elif defined(_X86_) || defined(__i386__)
 	movl	24(%esp),%edx
 	movl	12(%esp),%eax
 	andl	$0x8000,%edx

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