[PATCH] [lto/55113] Fix use of -fshort-double with -flto for powerpc

[Dominique Dhumieres]

Revision 208312 causes

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60427

Also compiling the test gcc.dg/lto/pr55113 with -m32 gives an ICE

FAIL: gcc.dg/lto/pr55113 c_lto_pr55113_0.o assemble,  -flto -fshort-double -O0  (internal compiler error)

internal compiler error: in layout_type, at stor-layout.c:2116

TIA

Dominique