diff options
Diffstat (limited to 'lib/arm/eqdf2vfp.S')
| -rw-r--r-- | lib/arm/eqdf2vfp.S | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/lib/arm/eqdf2vfp.S b/lib/arm/eqdf2vfp.S new file mode 100644 index 000000000000..d4384ec0e5ea --- /dev/null +++ b/lib/arm/eqdf2vfp.S @@ -0,0 +1,27 @@ +//===-- eqdf2vfp.S - Implement eqdf2vfp -----------------------------------===// +// +// 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 int __eqdf2vfp(double a, double b); +// +// Returns one iff a == b and neither is NaN. +// Uses Darwin calling convention where double precision arguments are passsed +// like in GPR pairs. +// + .align 2 +DEFINE_COMPILERRT_FUNCTION(__eqdf2vfp) + fmdrr d6, r0, r1 // load r0/r1 pair in double register + fmdrr d7, r2, r3 // load r2/r3 pair in double register + fcmpd d6, d7 + fmstat + moveq r0, #1 // set result register to 1 if equal + movne r0, #0 + bx lr |