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52 lines
1.8 KiB
52 lines
1.8 KiB
7 months ago
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//===-- aeabi_dcmp.S - EABI dcmp* implementation ---------------------------===//
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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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#include "../assembly.h"
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// int __aeabi_dcmp{eq,lt,le,ge,gt}(double a, double b) {
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// int result = __{eq,lt,le,ge,gt}df2(a, b);
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// if (result {==,<,<=,>=,>} 0) {
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// return 1;
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// } else {
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// return 0;
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// }
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// }
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#if defined(COMPILER_RT_ARMHF_TARGET)
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# define CONVERT_DCMP_ARGS_TO_DF2_ARGS \
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vmov d0, r0, r1 SEPARATOR \
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vmov d1, r2, r3
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#else
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# define CONVERT_DCMP_ARGS_TO_DF2_ARGS
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#endif
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#define DEFINE_AEABI_DCMP(cond) \
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.syntax unified SEPARATOR \
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.p2align 2 SEPARATOR \
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DEFINE_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond) \
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push { r4, lr } SEPARATOR \
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CONVERT_DCMP_ARGS_TO_DF2_ARGS SEPARATOR \
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bl SYMBOL_NAME(__ ## cond ## df2) SEPARATOR \
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cmp r0, #0 SEPARATOR \
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b ## cond 1f SEPARATOR \
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movs r0, #0 SEPARATOR \
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pop { r4, pc } SEPARATOR \
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1: SEPARATOR \
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movs r0, #1 SEPARATOR \
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pop { r4, pc } SEPARATOR \
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END_COMPILERRT_FUNCTION(__aeabi_dcmp ## cond)
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DEFINE_AEABI_DCMP(eq)
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DEFINE_AEABI_DCMP(lt)
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DEFINE_AEABI_DCMP(le)
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DEFINE_AEABI_DCMP(ge)
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DEFINE_AEABI_DCMP(gt)
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NO_EXEC_STACK_DIRECTIVE
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