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solidity/libsolidity/codegen/ir
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Peter Lemenkov 603f9f7208 Type recognition workaround for some GCC compilers 
Looks like somewhat old GCC compilers, namely 12.2.1, cannot recognize a
string literal sometimes. Let's help it to avoid error logs like this
one:

```
[ 75%] Building CXX object libsolidity/CMakeFiles/solidity.dir/codegen/ir/IRGeneratorForStatements.cpp.o
cd /builddir/build/BUILD/solidity-0.8.18/redhat-linux-build/libsolidity && /usr/bin/g++ -DBOOST_ATOMIC_DYN_LINK -DBOOST_ATOMIC_NO_LIB -DBOOST_FILESYSTEM_DYN_LINK -DBOOST_FILESYSTEM_NO_LIB -DBOOST_SYSTEM_DYN_LINK -DBOOST_SYSTEM_NO_LIB -DFMT_HEADER_ONLY=1 -DHAVE_CVC4 -DHAVE_Z3 -I/builddir/build/BUILD/solidity-0.8.18/redhat-linux-build/include -I/builddir/build/BUILD/solidity-0.8.18 -isystem /usr/include/z3 -O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1  -m64  -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -fuse-ld=gold -O3 -DNDEBUG -fstack-protector-strong -Wimplicit-fallthrough -fmacro-prefix-map=/builddir/build/BUILD/solidity-0.8.18=/solidity -Wpessimizing-move -Wredundant-move -Wall -Wextra -Werror -pedantic -Wmissing-declarations -Wno-unknown-pragmas -Wsign-conversion -Wconversion -Wextra-semi -Wduplicated-cond -Wlogical-op -fdiagnostics-color -std=c++17 -MD -MT libsolidity/CMakeFiles/solidity.dir/codegen/ir/IRGeneratorForStatements.cpp.o -MF CMakeFiles/solidity.dir/codegen/ir/IRGeneratorForStatements.cpp.o.d -o CMakeFiles/solidity.dir/codegen/ir/IRGeneratorForStatements.cpp.o -c /builddir/build/BUILD/solidity-0.8.18/libsolidity/codegen/ir/IRGeneratorForStatements.cpp
In file included from /usr/include/c++/12/string:40,
                 from /builddir/build/BUILD/solidity-0.8.18/libsolidity/ast/ASTForward.h:27,
                 from /builddir/build/BUILD/solidity-0.8.18/libsolidity/ast/AST.h:26,
                 from /builddir/build/BUILD/solidity-0.8.18/libsolidity/ast/ASTVisitor.h:26,
                 from /builddir/build/BUILD/solidity-0.8.18/libsolidity/codegen/ir/IRGeneratorForStatements.h:24,
                 from /builddir/build/BUILD/solidity-0.8.18/libsolidity/codegen/ir/IRGeneratorForStatements.cpp:22:
In function 'std::char_traits<char>::copy(char*, char const*, unsigned long)',
    inlined from 'std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_S_copy(char*, char const*, unsigned long)' at /usr/include/c++/12/bits/basic_string.h:423:21,
    inlined from 'std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::_M_replace(unsigned long, unsigned long, char const*, unsigned long)' at /usr/include/c++/12/bits/basic_string.tcc:532:22,
    inlined from 'std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::assign(char const*)' at /usr/include/c++/12/bits/basic_string.h:1647:19,
    inlined from 'std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator=(char const*)' at /usr/include/c++/12/bits/basic_string.h:815:28,
    inlined from '(anonymous namespace)::CopyTranslate::translateReference(solidity::yul::Identifier const&)' at /builddir/build/BUILD/solidity-0.8.18/libsolidity/codegen/ir/IRGeneratorForStatements.cpp:182:13:
/usr/include/c++/12/bits/char_traits.h:431:56: error: 'memcpy' accessing 9223372036854775810 or more bytes at offsets -4611686018427387902 and [-4611686018427387903, 4611686018427387904] may overlap up to 9223372036854775813 bytes at offset -3 [-Werror=restrict]
  431 |         return static_cast<char_type*>(__builtin_memcpy(__s1, __s2, __n));
      |                                        ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors
gmake[2]: *** [libsolidity/CMakeFiles/solidity.dir/build.make:695: libsolidity/CMakeFiles/solidity.dir/codegen/ir/IRGeneratorForStatements.cpp.o] Error 1
gmake[2]: *** Waiting for unfinished jobs....
gmake[2]: Leaving directory '/builddir/build/BUILD/solidity-0.8.18/redhat-linux-build'
gmake[1]: *** [CMakeFiles/Makefile2:414: libsolidity/CMakeFiles/solidity.dir/all] Error 2
gmake[1]: Leaving directory '/builddir/build/BUILD/solidity-0.8.18/redhat-linux-build'
gmake: *** [Makefile:139: all] Error 2
```

Signed-off-by: Peter Lemenkov <lemenkov@gmail.com>
2023-02-08 17:51:56 +01:00
..
Common.cpp Extract external function part into its own function. 2022-02-21 14:32:52 +01:00
Common.h Extract external function part into its own function. 2022-02-21 14:32:52 +01:00
IRGenerationContext.cpp Add std:: qualifier to move() calls 2022-08-30 11:12:15 +02:00
IRGenerationContext.h Allow annotating inline assembly as memory-safe. 2022-03-02 16:42:28 +01:00
IRGenerator.cpp Add experimental EOF options for CLI and Standard JSON. 2022-11-23 19:53:44 +01:00
IRGenerator.h Add experimental EOF options for CLI and Standard JSON. 2022-11-23 19:53:44 +01:00
IRGeneratorForStatements.cpp Type recognition workaround for some GCC compilers 2023-02-08 17:51:56 +01:00
IRGeneratorForStatements.h Corresponding code in the .cpp file has been commented instead of begin removed pending preliminary reviews 2022-02-01 16:07:55 +05:30
IRLValue.h Add SPDX license identifier if not present already in source file 2020-07-17 20:24:12 +05:30
IRVariable.cpp Replaced boost::adaptors::transformed 2021-04-08 17:38:14 +05:30
IRVariable.h [Sol->Yul] Enabling storage pointers to local vars in inline assembly. 2020-08-26 10:25:42 +02:00
README.md docs: Fix badly indented lists 2021-07-15 10:13:30 +02:00

README.md

The Solidity to Yul Code Generator

This directory contains the new experimental code generator that compiles Solidity to an intermediate representation in Yul with EVM dialect.

The main semantic differences to the legacy code generator are the following:

  • Arithmetic operations cause a failing assertion if the result is not in range.
  • Resizing a storage array to a length larger than 2**64 causes a failing assertion.