------- Comment #13 from bergner at gcc dot gnu dot org 2008-08-28 03:52 ------- There are actually a subset of TARGET_POWERP64 instructions that are safe to use in 32-bit mode regardless of whether OS_MISSING_POWERPC64 is set or not (eg, fcfid). For example, given the code below:
double di2df (long long *di) { return *di; } It should be safe to generate: lfd 0,0(3) fcfid 1,0 blr when compiling with -m32 as long as we are targeting a 64-bit processor (eg, -mcpu=power6). However, the floatdidf2 pattern is guarded with TARGET_POWERPC64, so we end up generating a call to __floatdidf instead. -- bergner at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bergner at gcc dot gnu dot | |org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27619