Created attachment 959377 [details]
A reproducer that causes internal compiler error in gcc 4.9.2 with -fsanitize=undefined

Description of problem:

When compiling the following small program, GCC reports an internal compiler error:

  repro.c: In function ´fun´:
  repro.c: internal compiler error: in gimplify_expr, at gimplify.c:8361
      (int)(1.0 < f ? 1.0 : 0.0);
                ^

Version-Release number of selected component (if applicable):
gcc --version:
gcc (GCC) 4.9.2 20141101 (Red Hat 4.9.2-1)

uname -a:
Linux 3.17.1-302.fc21.x86_64 #1 SMP Fri Oct 17 20:05:46 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux

How reproducible:


Steps to Reproduce:
1. Write the following small program to a (repro.c, also attached):
   
   void fun()
   {
       double f = 0.0;
       (int)(1.0 < f ? 1.0 : 0.0);
   }
2. Run: gcc -c -fsanitize=undefined repro.c -o repro.o

Actual results:
  repro.c: In function ´fun´:
  repro.c: internal compiler error: in gimplify_expr, at gimplify.c:8361
      (int)(1.0 < f ? 1.0 : 0.0);

Expected results:
An object file called repro.o

Additional info:
I did not succeed in making a smaller reproducer.