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| author | Nick Kledzik <kledzik@apple.com> | 2009-09-12 01:23:48 +0000 |
|---|---|---|
| committer | Nick Kledzik <kledzik@apple.com> | 2009-09-12 01:23:48 +0000 |
| commit | e80e978d6aa211056beddf4582390e374d1935ab (patch) | |
| tree | c117efd9aa0713f12b47683b9bdf2a2d6507b4ce /lib/arm/unorddf2vfp.S | |
| parent | f058587327b8fe65aedd6ad29102e8dfdeeb50c3 (diff) | |
| download | compiler-rt-e80e978d6aa211056beddf4582390e374d1935ab.tar.gz | |
add comparison functions for ARM
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@81597 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/arm/unorddf2vfp.S')
| -rw-r--r-- | lib/arm/unorddf2vfp.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/lib/arm/unorddf2vfp.S b/lib/arm/unorddf2vfp.S new file mode 100644 index 000000000..e458eb8c1 --- /dev/null +++ b/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 |