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| author | Alexey Samsonov <samsonov@google.com> | 2014-02-14 09:20:33 +0000 |
|---|---|---|
| committer | Alexey Samsonov <samsonov@google.com> | 2014-02-14 09:20:33 +0000 |
| commit | a6b264b51d4fa786d9df659621fc1ffad1fdc5d0 (patch) | |
| tree | 416fdf341f03ee1f373907f65ce054afc40d7ab1 /compiler-rt/lib/builtins/arm/unordsf2vfp.S | |
| parent | 0b28ea9c471308faf04b4b6695c9f016aabea49a (diff) | |
| download | bcm5719-llvm-a6b264b51d4fa786d9df659621fc1ffad1fdc5d0.tar.gz bcm5719-llvm-a6b264b51d4fa786d9df659621fc1ffad1fdc5d0.zip | |
Move original compiler-rt functions (libgcc replacement) to lib/builtins directory
llvm-svn: 201393
Diffstat (limited to 'compiler-rt/lib/builtins/arm/unordsf2vfp.S')
| -rw-r--r-- | compiler-rt/lib/builtins/arm/unordsf2vfp.S | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/compiler-rt/lib/builtins/arm/unordsf2vfp.S b/compiler-rt/lib/builtins/arm/unordsf2vfp.S new file mode 100644 index 00000000000..eb419a54154 --- /dev/null +++ b/compiler-rt/lib/builtins/arm/unordsf2vfp.S @@ -0,0 +1,29 @@ +//===-- unordsf2vfp.S - Implement unordsf2vfp -----------------------------===// +// +// 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 int __unordsf2vfp(float a, float b); +// +// Returns one iff a or b is NaN +// Uses Darwin calling convention where single precision arguments are passsed +// like 32-bit ints +// + .syntax unified + .align 2 +DEFINE_COMPILERRT_FUNCTION(__unordsf2vfp) + vmov s14, r0 // move from GPR 0 to float register + vmov s15, r1 // move from GPR 1 to float register + vcmp.f32 s14, s15 + vmrs apsr_nzcv, fpscr + movvs r0, #1 // set result register to 1 if "overflow" (any NaNs) + movvc r0, #0 + bx lr +END_COMPILERRT_FUNCTION(__unordsf2vfp) |
