forked from OSchip/llvm-project
109 lines
2.7 KiB
C
109 lines
2.7 KiB
C
/*===-- flang/runtime/complex-reduction.c ---------------------------*- C -*-===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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* ===-----------------------------------------------------------------------===
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*/
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#include "complex-reduction.h"
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#include "flang/Common/long-double.h"
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struct CppComplexFloat {
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float r, i;
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};
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struct CppComplexDouble {
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double r, i;
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};
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struct CppComplexLongDouble {
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long double r, i;
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};
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/* Not all environments define CMPLXF, CMPLX, CMPLXL. */
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#ifndef CMPLXF
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#if __clang_major__ >= 12
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#define CMPLXF __builtin_complex
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#else
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static float_Complex_t CMPLXF(float r, float i) {
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union {
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struct CppComplexFloat x;
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float_Complex_t result;
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} u;
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u.x.r = r;
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u.x.i = i;
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return u.result;
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}
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#endif
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#endif
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#ifndef CMPLX
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#if __clang_major__ >= 12
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#define CMPLX __builtin_complex
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#else
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static double_Complex_t CMPLX(double r, double i) {
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union {
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struct CppComplexDouble x;
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double_Complex_t result;
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} u;
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u.x.r = r;
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u.x.i = i;
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return u.result;
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}
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#endif
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#endif
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#ifndef CMPLXL
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#if __clang_major__ >= 12
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#define CMPLXL __builtin_complex
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#else
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static long_double_Complex_t CMPLXL(long double r, long double i) {
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union {
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struct CppComplexLongDouble x;
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long_double_Complex_t result;
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} u;
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u.x.r = r;
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u.x.i = i;
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return u.result;
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}
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#endif
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#endif
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/* RTNAME(SumComplex4) calls RTNAME(CppSumComplex4) with the same arguments
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* and converts the members of its C++ complex result to C _Complex.
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*/
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#define CPP_NAME(name) Cpp##name
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#define ADAPT_REDUCTION(name, cComplex, cpptype, cmplxMacro) \
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struct cpptype RTNAME(CPP_NAME(name))(struct cpptype *, REDUCTION_ARGS); \
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cComplex RTNAME(name)(REDUCTION_ARGS) { \
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struct cpptype result; \
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RTNAME(CPP_NAME(name))(&result, REDUCTION_ARG_NAMES); \
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return cmplxMacro(result.r, result.i); \
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}
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/* TODO: COMPLEX(2 & 3) */
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/* SUM() */
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ADAPT_REDUCTION(SumComplex4, float_Complex_t, CppComplexFloat, CMPLXF)
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ADAPT_REDUCTION(SumComplex8, double_Complex_t, CppComplexDouble, CMPLX)
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#if LONG_DOUBLE == 80
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ADAPT_REDUCTION(
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SumComplex10, long_double_Complex_t, CppComplexLongDouble, CMPLXL)
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#elif LONG_DOUBLE == 128
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ADAPT_REDUCTION(
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SumComplex16, long_double_Complex_t, CppComplexLongDouble, CMPLXL)
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#endif
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/* PRODUCT() */
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ADAPT_REDUCTION(ProductComplex4, float_Complex_t, CppComplexFloat, CMPLXF)
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ADAPT_REDUCTION(ProductComplex8, double_Complex_t, CppComplexDouble, CMPLX)
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#if LONG_DOUBLE == 80
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ADAPT_REDUCTION(
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ProductComplex10, long_double_Complex_t, CppComplexLongDouble, CMPLXL)
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#elif LONG_DOUBLE == 128
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ADAPT_REDUCTION(
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ProductComplex16, long_double_Complex_t, CppComplexLongDouble, CMPLXL)
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#endif
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