http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47449
Summary: [32] can’t find a register in class ‘DIREG’ while reloading ‘asm’ Product: gcc Version: 4.6.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassig...@gcc.gnu.org ReportedBy: hjl.to...@gmail.com CC: ubiz...@gmail.com [hjl@gnu-6 ilp32-17]$ cat x.c void bar (void *); int foo (void *trans) { int ret; __asm __volatile ("foo %0\n\t" : "=D" (ret)); bar (trans); return ret; } [hjl@gnu-6 ilp32-17]$ make x.s /export/build/gnu/gcc-x32/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/gcc-x32/build-x86_64-linux/gcc/ -S -o x.s -mx32 -O2 -dp x.c x.c: In function ‘foo’: x.c:6:5: error: can’t find a register in class ‘DIREG’ while reloading ‘asm’ x.c:6:5: error: ‘asm’ operand has impossible constraints make: *** [x.s] Error 1 [hjl@gnu-6 ilp32-17]$ Uros, any ideas? Thanks.