1/* { dg-do compile } */
2/* { dg-options "-O -mfpmath=sse -msse2" } */
3/* { dg-require-effective-target sse2 } */
4/* The fact that t1 and t2 are uninitialized is critical.  With them
5   uninitialized, the register allocator is free to put them in the same
6   hard register, which results in
7
8	xmm0 = xmm0 >= xmm0 ? xmm0 : xmm0
9
10   Which is of course a nop, but one for which we would ICE splitting the
11   pattern.  */
12
13double out;
14
15static void foo(void)
16{
17    double t1, t2, t3, t4;
18
19    t4 = t1 >= t2 ? t1 : t2;
20    t4 = t4 >= t3 ? t4 : t3;
21    out = t4;
22}
23