https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66563

--- Comment #7 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
Alright, I did some further tests. I downloaded the source package for "wmfire"
with "apt-get source wmfire" and installed its build dependencies with "apt-get
build-dep wmfire".

Then I just tried to compile "wmfire.c":

glaubitz@tirpitz:~/debian/segfault-test/wmfire-1.2.4/src$ gcc wmfire.c -o
wmfire.o $(pkg-config --cflags gdk-2.0) $(pkg-config --cflags libgtop-2.0)
wmfire.c: In function ‘draw_fire’:
wmfire.c:559:6: internal compiler error: Segmentation fault
      psi = i * 3.14 / 20.0;
      ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.

Preprocessed source stored into /tmp/ccSeTi7v.out file, please attach this to
your bugreport.
glaubitz@tirpitz:~/debian/segfault-test/wmfire-1.2.4/src$

I did a second run with strace:

glaubitz@tirpitz:~/debian/segfault-test/wmfire-1.2.4/src$ strace -o
gcc-segfault-wmfire gcc wmfire.c -o wmfire.o $(pkg-config --cflags gdk-2.0)
$(pkg-config --cflags libgtop-2.0)
wmfire.c: In function ‘draw_fire’:
wmfire.c:559:6: internal compiler error: Segmentation fault
      psi = i * 3.14 / 20.0;
      ^
Please submit a full bug report,
with preprocessed source if appropriate.
See <file:///usr/share/doc/gcc-4.9/README.Bugs> for instructions.
Preprocessed source stored into /tmp/cchKm9Ad.out file, please attach this to
your bugreport.
glaubitz@tirpitz:~/debian/segfault-test/wmfire-1.2.4/src$

Attaching the strace output as well as the preprocessed source.

Adrian
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From: "glaubitz at physik dot fu-berlin.de" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug target/66563] [4.9 Regression] ICE (segmentation fault) on sh4-linux-gnu
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https://gcc.gnu.org/bugzilla/show_bug.cgi?idf563

--- Comment #8 from John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin.de> ---
Created attachment 35808
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id5808&actioníit
strace of gcc segfaulting when compiling wmfire.c on sh4