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Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/builtins/arm/nedf2vfp.S')
| -rw-r--r-- | contrib/llvm-project/compiler-rt/lib/builtins/arm/nedf2vfp.S | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/arm/nedf2vfp.S b/contrib/llvm-project/compiler-rt/lib/builtins/arm/nedf2vfp.S new file mode 100644 index 000000000000..32d35c41d466 --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/builtins/arm/nedf2vfp.S @@ -0,0 +1,35 @@ +//===-- nedf2vfp.S - Implement nedf2vfp -----------------------------------===// +// +// 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 double __nedf2vfp(double a, double b); +// +// Returns zero if a and b are unequal and neither is NaN. +// Uses Darwin calling convention where double precision arguments are passsed +// like in GPR pairs. + + .syntax unified + .p2align 2 +DEFINE_COMPILERRT_FUNCTION(__nedf2vfp) +#if defined(COMPILER_RT_ARMHF_TARGET) + vcmp.f64 d0, d1 +#else + vmov d6, r0, r1 // load r0/r1 pair in double register + vmov d7, r2, r3 // load r2/r3 pair in double register + vcmp.f64 d6, d7 +#endif + vmrs apsr_nzcv, fpscr + ITE(ne) + movne r0, #1 // set result register to 0 if unequal + moveq r0, #0 + bx lr +END_COMPILERRT_FUNCTION(__nedf2vfp) + +NO_EXEC_STACK_DIRECTIVE + |