/* { dg-do compile } */ /* { dg-options "-O2 -fforce-addr" } */ extern int foo (void *, long, double *); extern int bar (void *, double, long *); extern double copysign (double, double); extern double floor (double); int test (void *a, long *b, long *c) { double x, z; if (!foo (a, b[0], &x)) return 0; z = copysign (floor (x + 0.5), x); return bar (a, z, c); } ICEs on i686 with: A.c: In function 'test': A.c:18: error: unrecognizable insn: (insn 48 78 49 4 (parallel [ (set (mem/i:DF (reg/f:SI 80) [0 S8 A32]) (neg:DF (mem/i:DF (reg/f:SI 81) [0 S8 A32]))) (use (const_int 0 [0x0])) (clobber (reg:CC 17 flags)) ]) -1 (nil) (nil)) A.c:18: internal compiler error: in instantiate_virtual_regs_in_insn, at function.c:1555 Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. The ICE is not present on mainline, guess since the http://gcc.gnu.org/ml/gcc-patches/2006-05/msg01526.html change where the MEM is forced into register during expand time.
This is a dup of bug 28132. *** This bug has been marked as a duplicate of 28132 ***