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Questions - compiler-explorer

How to use <stacktrace> in GCC trunk?

From https://github.com/gcc-mirror/gcc/commit/3acb929cc0beb79e6f4005eb22ee88b45e1cbc1d commit, C++ standard header <stacktrace> exists things such as std::stacktrace_entry but is not declared si...
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Desmond Gold

c++

libstdc++

c++23

compiler-explorer

Votes: 0

Answers: 1

Latest Answer

Part of building GCC from source is to run the configure shell script and pass it a bunch of arguments to tell it how to behave. That commit message is telling you that in order to enable this featur...
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David Grayson

What is the name of the default code model used by gcc for MIPS 64?

gcc for MIPS 64 is using a complex method to locate and invoke a function not present in the compilation unit.  What is the name of this code model (and where is it documented)?  I searched but did no...
test-img

Erik Eidt

assembly

gcc

mips

mips64

compiler-explorer

Votes: 0

Answers: 1

Latest Answer

Partial answer, to the "is there a bug" part, not the name of the code-model in the MIPS64 ABI. Turns out the [compiler-explorer] tag was relevant after all: It was hiding a 1: jalr $25...
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Peter Cordes

Comparing C++17 Compilers and their generated optimized assembly

Here's a basic working C++ program. #include <string> #include <string_view> #include <iostream> template<typename ValueType> struct BasicType { ValueType value{}; std...
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Francis Cugler

c++

assembly

c++17

compiler-optimization

compiler-explorer

Votes: 0

Answers: 0

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