6c75b51bb5
Summary:
This is a patch for PR34167.
On HF targets functions like `__{eq,lt,le,ge,gt}df2` and `__{eq,lt,le,ge,gt}sf2` expect their arguments to be passed in d/s registers, while some of the AEABI builtins pass them in r registers.
Reviewers: compnerd, peter.smith, asl
Reviewed By: peter.smith, asl
Subscribers: peter.smith, aemerson, dberris, javed.absar, llvm-commits, asl, kristof.beyls
Differential Revision: https://reviews.llvm.org/D36675
llvm-svn: 311555
53 lines
1.8 KiB
ArmAsm
53 lines
1.8 KiB
ArmAsm
//===-- 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;
|
|
// }
|
|
// }
|
|
|
|
#if defined(COMPILER_RT_ARMHF_TARGET)
|
|
# define CONVERT_FCMP_ARGS_TO_SF2_ARGS \
|
|
vmov s0, r0 SEPARATOR \
|
|
vmov s1, r1
|
|
#else
|
|
# define CONVERT_FCMP_ARGS_TO_SF2_ARGS
|
|
#endif
|
|
|
|
#define DEFINE_AEABI_FCMP(cond) \
|
|
.syntax unified SEPARATOR \
|
|
.p2align 2 SEPARATOR \
|
|
DEFINE_COMPILERRT_FUNCTION(__aeabi_fcmp ## cond) \
|
|
push { r4, lr } SEPARATOR \
|
|
CONVERT_FCMP_ARGS_TO_SF2_ARGS SEPARATOR \
|
|
bl SYMBOL_NAME(__ ## cond ## sf2) 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_fcmp ## cond)
|
|
|
|
DEFINE_AEABI_FCMP(eq)
|
|
DEFINE_AEABI_FCMP(lt)
|
|
DEFINE_AEABI_FCMP(le)
|
|
DEFINE_AEABI_FCMP(ge)
|
|
DEFINE_AEABI_FCMP(gt)
|
|
|
|
NO_EXEC_STACK_DIRECTIVE
|
|
|