https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63358
Bug ID: 63358
Summary: [4.8.3 - 4.9.1] gcc -O2/-O3 wrong assembly code (crash
/ Segmentation fault)
Product: gcc
Version: 4.9.1
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: jean-baptiste.laurent at epitech dot eu
Created attachment 33547
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33547&action=edit
The zip file containing the small code making gcc generate wrong assembly, and
both the .s and .i generated by -save-temps.
Hi,
It appears that gcc, when compiling the code in attachment generate an assembly
which is wrong.
This code has been tested with gcc 4.7.1 (working), 4.8.3 (crash) on Fedora 18
and Fedora 20, and 4.9.1 (crash) on Ubuntu 14.04.
The source file produce a wrong code when compiling with at least -O2. Warning
flags (-W -Wall -Wextra) do not influence the result. There are no warning
generated.
When looking at the assembly directly it look like there is a whole part of the
code missing (like the compilation stopped but do not failed).
