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Diffstat (limited to 'lib/builtins/arm/negdf2vfp.S')
| -rw-r--r-- | lib/builtins/arm/negdf2vfp.S | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/lib/builtins/arm/negdf2vfp.S b/lib/builtins/arm/negdf2vfp.S new file mode 100644 index 000000000000..56d73c676176 --- /dev/null +++ b/lib/builtins/arm/negdf2vfp.S @@ -0,0 +1,23 @@ +//===-- negdf2vfp.S - Implement negdf2vfp ---------------------------------===// +// +// 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 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. +// + .syntax unified + .p2align 2 +DEFINE_COMPILERRT_FUNCTION(__negdf2vfp) + eor r1, r1, #-2147483648 // flip sign bit on double in r0/r1 pair + bx lr +END_COMPILERRT_FUNCTION(__negdf2vfp) |