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authored <ed@FreeBSD.org>2010-11-11 15:13:11 +0000
committered <ed@FreeBSD.org>2010-11-11 15:13:11 +0000
commit870837e3e92f721a44db51308f2b900d928fb04f (patch)
tree9f851f7f6da4a4d9010d26bf17881d3bc5320f2b /contrib/compiler-rt/lib/arm/negdf2vfp.S
parenta1b6fa69a6f674978270e402b8bba6552e152066 (diff)
parent653bb6745595746d04ad4acacaaab66caaaeb69b (diff)
downloadFreeBSD-src-870837e3e92f721a44db51308f2b900d928fb04f.zip
FreeBSD-src-870837e3e92f721a44db51308f2b900d928fb04f.tar.gz
Import libcompiler_rt into HEAD and add Makefiles.
Obtained from: user/ed/compiler-rt
Diffstat (limited to 'contrib/compiler-rt/lib/arm/negdf2vfp.S')
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diff --git a/contrib/compiler-rt/lib/arm/negdf2vfp.S b/contrib/compiler-rt/lib/arm/negdf2vfp.S
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+//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+//
+// extern double __negdf2vfp(double a, double b);
+//
+// Returns the negation a double precision floating point numbers using the
+// Darwin calling convention where double arguments are passsed in GPR pairs.
+//
+ .align 2
+DEFINE_COMPILERRT_FUNCTION(__negdf2vfp)
+ eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair
+ bx lr
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