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authorDimitry Andric <dim@FreeBSD.org>2015-01-07 19:55:37 +0000
committerDimitry Andric <dim@FreeBSD.org>2015-01-07 19:55:37 +0000
commitca9211ecdede9bdedb812b2243a4abdb8dacd1b9 (patch)
tree9b19e801150082c33e9152275829a6ce90614b55 /lib/builtins/arm/subsf3vfp.S
parent8ef50bf3d1c287b5013c3168de77a462dfce3495 (diff)
downloadsrc-ca9211ecdede9bdedb812b2243a4abdb8dacd1b9.tar.gz
src-ca9211ecdede9bdedb812b2243a4abdb8dacd1b9.zip
Import compiler-rt trunk r224034.vendor/compiler-rt/compiler-rt-r224034
Notes
Notes: svn path=/vendor/compiler-rt/dist/; revision=276789 svn path=/vendor/compiler-rt/compiler-rt-r224034/; revision=276790; tag=vendor/compiler-rt/compiler-rt-r224034
Diffstat (limited to 'lib/builtins/arm/subsf3vfp.S')
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diff --git a/lib/builtins/arm/subsf3vfp.S b/lib/builtins/arm/subsf3vfp.S
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+//===-- subsf3vfp.S - Implement subsf3vfp ---------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+//
+// extern float __subsf3vfp(float a, float b);
+//
+// Returns the difference between two single precision floating point numbers
+// using the Darwin calling convention where single arguments are passsed
+// like 32-bit ints.
+//
+ .syntax unified
+ .p2align 2
+DEFINE_COMPILERRT_FUNCTION(__subsf3vfp)
+ vmov s14, r0 // move first param from r0 into float register
+ vmov s15, r1 // move second param from r1 into float register
+ vsub.f32 s14, s14, s15
+ vmov r0, s14 // move result back to r0
+ bx lr
+END_COMPILERRT_FUNCTION(__subsf3vfp)