diff options
Diffstat (limited to 'lib/arm/aeabi_fcmp.S')
| -rw-r--r-- | lib/arm/aeabi_fcmp.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/lib/arm/aeabi_fcmp.S b/lib/arm/aeabi_fcmp.S new file mode 100644 index 000000000000..576a33f25542 --- /dev/null +++ b/lib/arm/aeabi_fcmp.S @@ -0,0 +1,39 @@ +//===-- aeabi_fcmp.S - EABI fcmp* implementation ---------------------------===// +// +// 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" + +// int __aeabi_fcmp{eq,lt,le,ge,gt}(float a, float b) { +// int result = __{eq,lt,le,ge,gt}sf2(a, b); +// if (result {==,<,<=,>=,>} 0) { +// return 1; +// } else { +// return 0; +// } +// } + +#define DEFINE_AEABI_FCMP(cond) \ + .syntax unified SEPARATOR \ + .align 2 SEPARATOR \ +DEFINE_COMPILERRT_FUNCTION(__aeabi_fcmp ## cond) \ + push { r4, lr } SEPARATOR \ + bl SYMBOL_NAME(__ ## cond ## sf2) SEPARATOR \ + cmp r0, #0 SEPARATOR \ + b ## cond 1f SEPARATOR \ + mov r0, #0 SEPARATOR \ + pop { r4, pc } SEPARATOR \ +1: SEPARATOR \ + mov r0, #1 SEPARATOR \ + pop { r4, pc } + +DEFINE_AEABI_FCMP(eq) +DEFINE_AEABI_FCMP(lt) +DEFINE_AEABI_FCMP(le) +DEFINE_AEABI_FCMP(ge) +DEFINE_AEABI_FCMP(gt) |