diff options
Diffstat (limited to 'compiler-rt/lib/arm/unorddf2vfp.S')
| -rw-r--r-- | compiler-rt/lib/arm/unorddf2vfp.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/compiler-rt/lib/arm/unorddf2vfp.S b/compiler-rt/lib/arm/unorddf2vfp.S new file mode 100644 index 00000000000..e458eb8c156 --- /dev/null +++ b/compiler-rt/lib/arm/unorddf2vfp.S @@ -0,0 +1,26 @@ +//===-- unorddf2vfp.S - Implement unorddf2vfp ------------------------------===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + + +// +// extern int __unorddf2vfp(double a, double b); +// +// Returns one iff a or b is NaN +// Uses Darwin calling convention where double precision arguments are passsed +// like in GPR pairs. +// + .globl ___unorddf2vfp +___unorddf2vfp: + 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 + movvs r0, #1 // set result register to 1 if "overflow" (any NaNs) + movvc r0, #0 + bx lr |
