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ICE: llvm::cast_retty<X, Y*>::ret_type llvm::cast(Y*) [with X = clang::FunctionDecl; Y = clang::Decl; typename llvm::cast_retty<X, Y*>::ret_type = clang::FunctionDecl*]: Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed.

3

| | | | --- | --- | | Bugzilla Link | [50977](https://llvm.org/bz50977) | | Version | trunk | | OS | Linux | | CC | @zygoloid | ##...

chengniansun

[C++20] [Modules] The lambda in the requires expression prevents us to merge concepts across modules

2

This comes from https://github.com/llvm/llvm-project/issues/63530. I file this to track the issue in the compiler side. Reproducer: ```C++ // RUN: rm -rf %t // RUN: mkdir -p %t // RUN: split-file...

ChuanqiXu9

#include_next <same_header_name> gives error in Clang-based tools, but not Clang

9

Consider this header `stdio.h`: ```cpp // exists so it can be put in a modulemap... #include_next // and also so we can mark a few things nodiscard [[nodiscard]] FILE* tmpfile();...

cjdb

testcase ```c #include extern int printf(const char *format, ...); int main() { printf("Hello World\n"); return 0; } ``` ```bash clang -O2 -D_FORTIFY_SOURCE=2 test_1.c ``` output: ``` extern int printf(const char...

Gcourage

multiple `readability-named-parameter` warnings not reported at once with line breaks in function signature

2

```cpp #include class A { public: A() {} virtual ~A() {} virtual void f(const std::string &a, const char b[], const std::size_t c); }; class B : public A { public:...

firewave

[WASM] "signext" attribute leads miscompilation

7

```ll define i32 @foo(i1 signext noundef %cond, i32 noundef %y) { %e = zext i1 %cond to i32 %r = sub i32 %y, %e ret i32 %r } ``` Compiling...

doit-man

False positive misc-confusable-identifier: confusing template argument and function from different classes

3

Getting the following on latest trunk: ```cpp #include struct Foo { void l(); }; ``` ```console [source>:5:10: warning: 'l' is confusable with 'I' [misc-confusable-identifiers]] void l(); ^ /opt/compiler-explorer/libs/googletest/trunk/googletest/include/gtest/internal/gtest-param-util.h:842:23: note: other...

carlosgalvezp

[-fmodules] linker errors when building llvm with libc++

2

Same build of llvm as #59063, just with libc++. https://github.com/Trass3r/llvm-project/actions/runs/3652405070/jobs/6170757099 https://github.com/Trass3r/llvm-project/blob/64a7e047880c0c7211be9db740deb1ac4949a545/.github/workflows/CI.yml#L146-L163 ```console Error: ld.lld: error: undefined symbol: clang::ast_matchers::internal::DynTypedMatcher::matches(clang::DynTypedNode const&, clang::ast_matchers::internal::ASTMatchFinder*, clang::ast_matchers::internal::BoundNodesTreeBuilder*) const ```

Trass3r

clang: Assertion `Diagnosed && "failed to diagnose bad conversion"' failed.

1

The testcase (compiled with: `clang -fopenmp-simd small.c`): ``` int *a, b; void c(void) { #pragma omp task depend(iterator(int *d = 23 : a), in : b) } ``` Compiler Explorer:...

wierton

clang: Assertion `Value != 0 && "Invalid CPUStr passed to CpuIs"' failed.

1

The testcase (compiled with: `clang small.c`): ``` __attribute__((target_clones("arch=core-avx2", "arch=slm", "default"))) void foo(void) {} ``` Compiler Explorer: https://gcc.godbolt.org/z/xn6KrTcor Compiler version: ``` clang version 17.0.0 (https://github.com/llvm/llvm-project.git 12e9c7aaa66b7624b5d7666ce2794d912bf9e4b7) Target: x86_64-unknown-linux-gnu Thread model: posix...

wierton