diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_dcmp.S')
| -rw-r--r-- | contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_dcmp.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_dcmp.S b/contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_dcmp.S new file mode 100644 index 000000000000..5f720670ddd7 --- /dev/null +++ b/contrib/llvm-project/compiler-rt/lib/builtins/arm/aeabi_dcmp.S @@ -0,0 +1,51 @@ +//===-- aeabi_dcmp.S - EABI dcmp* implementation ---------------------------===// +// +// 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" + +// int __aeabi_dcmp{eq,lt,le,ge,gt}(double a, double b) { +// int result = __{eq,lt,le,ge,gt}df2(a, b); +// if (result {==,<,<=,>=,>} 0) { +// return 1; +// } else { +// return 0; +// } +// } + +#if defined(COMPILER_RT_ARMHF_TARGET) +# define CONVERT_DCMP_ARGS_TO_DF2_ARGS \ + vmov d0, r0, r1 SEPARATOR \ + vmov d1, r2, r3 +#else +# define CONVERT_DCMP_ARGS_TO_DF2_ARGS +#endif + +#define DEFINE_AEABI_DCMP(cond) \ + .syntax unified SEPARATOR \ + .p2align 2 SEPARATOR \ +DEFINE_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond) \ + push { r4, lr } SEPARATOR \ + CONVERT_DCMP_ARGS_TO_DF2_ARGS SEPARATOR \ + bl SYMBOL_NAME(__ ## cond ## df2) SEPARATOR \ + cmp r0, #0 SEPARATOR \ + b ## cond 1f SEPARATOR \ + movs r0, #0 SEPARATOR \ + pop { r4, pc } SEPARATOR \ +1: SEPARATOR \ + movs r0, #1 SEPARATOR \ + pop { r4, pc } SEPARATOR \ +END_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond) + +DEFINE_AEABI_DCMP(eq) +DEFINE_AEABI_DCMP(lt) +DEFINE_AEABI_DCMP(le) +DEFINE_AEABI_DCMP(ge) +DEFINE_AEABI_DCMP(gt) + +NO_EXEC_STACK_DIRECTIVE + |