https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100924
Bug ID: 100924
Summary: GCC 11.1.1 internal compiler error: segfault at VLA
function definition
Product: gcc
Version: 11.1.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: christian.holme at med dot uni-goettingen.de
Target Milestone: ---
Created attachment 50949
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50949&action=edit
Failing source
Hey,
when compiling the attached vlatest_min.c, I encounter an internal compiler
error: segmentation fault with gcc 11.1.1. The precise version information
(collected with gcc -v) can be found in the attached compilation log.
With gcc master from 2021-06-02 it compiles without error.
Changing optimization level from -O3 to -O1 also removes the segfault, but -O2
still segfaults.
I have also attached the compiler output for both gcc 11 and 12 (master) and
the preprocessed files in both cases.
Since a fix for it exists on master, I am submitting this bug report in the
hopes that it will make it easier to fix in the next release of gcc 11.
Best regards
