| 1 | //===-- lib/Evaluate/common.cpp -------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "flang/Evaluate/common.h" |
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| 10 | #include "flang/Common/idioms.h" |
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| 11 | |
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| 12 | using namespace Fortran::parser::literals; |
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| 13 | |
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| 14 | namespace Fortran::evaluate { |
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| 15 | |
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| 16 | void RealFlagWarnings( |
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| 17 | FoldingContext &context, const RealFlags &flags, const char *operation) { |
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| 18 | static constexpr auto warning{common::UsageWarning::FoldingException}; |
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| 19 | if (context.languageFeatures().ShouldWarn(warning)) { |
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| 20 | if (flags.test(RealFlag::Overflow)) { |
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| 21 | context.messages().Say(warning, "overflow on %s"_warn_en_US , operation); |
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| 22 | } |
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| 23 | if (flags.test(RealFlag::DivideByZero)) { |
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| 24 | if (std::strcmp(operation, "division" ) == 0) { |
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| 25 | context.messages().Say(warning, "division by zero"_warn_en_US ); |
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| 26 | } else { |
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| 27 | context.messages().Say( |
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| 28 | warning, "division by zero on %s"_warn_en_US , operation); |
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| 29 | } |
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| 30 | } |
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| 31 | if (flags.test(RealFlag::InvalidArgument)) { |
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| 32 | context.messages().Say( |
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| 33 | warning, "invalid argument on %s"_warn_en_US , operation); |
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| 34 | } |
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| 35 | if (flags.test(RealFlag::Underflow)) { |
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| 36 | context.messages().Say(warning, "underflow on %s"_warn_en_US , operation); |
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| 37 | } |
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| 38 | } |
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| 39 | } |
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| 40 | |
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| 41 | ConstantSubscript &FoldingContext::StartImpliedDo( |
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| 42 | parser::CharBlock name, ConstantSubscript n) { |
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| 43 | auto pair{impliedDos_.insert(std::make_pair(name, n))}; |
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| 44 | CHECK(pair.second); |
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| 45 | return pair.first->second; |
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| 46 | } |
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| 47 | |
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| 48 | std::optional<ConstantSubscript> FoldingContext::GetImpliedDo( |
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| 49 | parser::CharBlock name) const { |
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| 50 | if (auto iter{impliedDos_.find(name)}; iter != impliedDos_.cend()) { |
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| 51 | return {iter->second}; |
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| 52 | } else { |
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| 53 | return std::nullopt; |
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| 54 | } |
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| 55 | } |
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| 56 | |
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| 57 | void FoldingContext::EndImpliedDo(parser::CharBlock name) { |
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| 58 | auto iter{impliedDos_.find(name)}; |
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| 59 | if (iter != impliedDos_.end()) { |
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| 60 | impliedDos_.erase(iter); |
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| 61 | } |
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| 62 | } |
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| 63 | } // namespace Fortran::evaluate |
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| 64 | |
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