diff options
Diffstat (limited to 'compiler-rt/lib/builtins/arm/lesf2vfp.S')
| -rw-r--r-- | compiler-rt/lib/builtins/arm/lesf2vfp.S | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/compiler-rt/lib/builtins/arm/lesf2vfp.S b/compiler-rt/lib/builtins/arm/lesf2vfp.S new file mode 100644 index 000000000000..2052d3869145 --- /dev/null +++ b/compiler-rt/lib/builtins/arm/lesf2vfp.S @@ -0,0 +1,36 @@ +//===-- lesf2vfp.S - Implement lesf2vfp -----------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "../assembly.h" + +// +// extern int __lesf2vfp(float a, float b); +// +// Returns one iff a <= b and neither is NaN. +// Uses Darwin calling convention where single precision arguments are passsed +// like 32-bit ints +// + .syntax unified + .p2align 2 +DEFINE_COMPILERRT_FUNCTION(__lesf2vfp) +#if defined(COMPILER_RT_ARMHF_TARGET) + vcmp.f32 s0, s1 +#else + vmov s14, r0 // move from GPR 0 to float register + vmov s15, r1 // move from GPR 1 to float register + vcmp.f32 s14, s15 +#endif + vmrs apsr_nzcv, fpscr + ITE(ls) + movls r0, #1 // set result register to 1 if equal + movhi r0, #0 + bx lr +END_COMPILERRT_FUNCTION(__lesf2vfp) + +NO_EXEC_STACK_DIRECTIVE + |