0d586d06a7
r303188 removed all the uses of aliases for EABI functions from compiler-rt, because some of them had mismatched calling conventions. Obviously, we can't use aliases for functions which don't have the same calling convention, but that's only an issue for floating-point functions with the hardfloat ABI. In other cases, the stubs increase size and reduce performance for no benefit. This patch adds back the aliases, with appropriate checks to make sure they're only used in cases where the calling convention matches. llvm-svn: 314851
33 lines
1006 B
C
33 lines
1006 B
C
//===-- lib/adddf3.c - Double-precision subtraction ---------------*- C -*-===//
|
|
//
|
|
// 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.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file implements double-precision soft-float subtraction with the
|
|
// IEEE-754 default rounding (to nearest, ties to even).
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#define DOUBLE_PRECISION
|
|
#include "fp_lib.h"
|
|
|
|
// Subtraction; flip the sign bit of b and add.
|
|
COMPILER_RT_ABI fp_t
|
|
__subdf3(fp_t a, fp_t b) {
|
|
return __adddf3(a, fromRep(toRep(b) ^ signBit));
|
|
}
|
|
|
|
#if defined(__ARM_EABI__)
|
|
#if defined(COMPILER_RT_ARMHF_TARGET)
|
|
AEABI_RTABI fp_t __aeabi_dsub(fp_t a, fp_t b) {
|
|
return __subdf3(a, b);
|
|
}
|
|
#else
|
|
AEABI_RTABI fp_t __aeabi_dsub(fp_t a, fp_t b) COMPILER_RT_ALIAS(__subdf3);
|
|
#endif
|
|
#endif
|