[llvm-bugs] [Bug 50844] New: ICE: fatal error: error in backend: Broken function found, compilation aborted!

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=50844

            Bug ID: 50844
           Summary: ICE: fatal error: error in backend: Broken function
                    found, compilation aborted!
           Product: clang
           Version: trunk
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: C
          Assignee: unassignedclangbugs at nondot.org
          Reporter: cnsun at uwaterloo.ca
                CC: blitzrakete at gmail.com, dgregor at apple.com,
                    erik.pilkington at gmail.com, llvm-bugs at lists.llvm.org,
                    richard-llvm at metafoo.co.uk

$ clang-trunk -v
clang version 13.0.0 (https://github.com/llvm/llvm-project.git
24d48d45cc302a6abeab139d87ba87f7a2335323)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/9
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/10
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@mx32
Selected multilib: .;@m64

$ cat mutant.c
void __attribute__((interrupt)) foo(struct ucontext *) {}

$ clang-trunk  mutant.c
mutant.c:1:44: warning: declaration of 'struct ucontext' will not be visible
outside of this function [-Wvisibility]
void __attribute__((interrupt)) foo(struct ucontext *) {}
                                           ^
mutant.c:1:54: warning: omitting the parameter name in a function definition is
a C2x extension [-Wc2x-extensions]
void __attribute__((interrupt)) foo(struct ucontext *) {}
                                                     ^
Attribute 'byval' does not support unsized types!
void (%struct.ucontext*)* @foo
in function foo
fatal error: error in backend: Broken function found, compilation aborted!
clang-13: error: clang frontend command failed with exit code 70 (use -v to see
invocation)
clang version 13.0.0 (https://github.com/llvm/llvm-project.git
24d48d45cc302a6abeab139d87ba87f7a2335323)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /home/cnsun/usr/bin
clang-13: note: diagnostic msg:
********************

PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
Preprocessed source(s) and associated run script(s) are located at:
clang-13: note: diagnostic msg: /tmp/mutant-454061.c
clang-13: note: diagnostic msg: /tmp/mutant-454061.sh
clang-13: note: diagnostic msg:

********************

-- 
You are receiving this mail because:
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.llvm.org/pipermail/llvm-bugs/attachments/20210624/b411f255/attachment.html>