2014-06-04 10:58 GMT+04:00 Jeff Law <l...@redhat.com>: > On 06/02/14 04:25, Ilya Enkovich wrote: >> >> Hi, >> >> This patch adds support for pointer bounds constants to be used as >> DECL_INITIAL for constant bounds (like zero bounds). >> >> Bootstrapped and tested on linux-x86_64. >> >> Thanks, >> Ilya >> -- >> gcc/ >> >> 2014-05-30 Ilya Enkovich <ilya.enkov...@intel.com> >> >> * emit-rtl.c (immed_double_const): Support MODE_POINTER_BOUNDS. >> (init_emit_once): Build pointer bounds zero constants. >> * explow.c (trunc_int_for_mode): Likewise. >> * varpool.c (ctor_for_folding): Do not fold constant >> bounds vars. >> * varasm.c (output_constant_pool_2): Support MODE_POINTER_BOUNDS. >> * config/i386/i386.c (ix86_legitimate_constant_p): Mark >> bounds constant as not valid. > > > [ ... ] > > >> >> @@ -5875,6 +5876,11 @@ init_emit_once (void) >> if (STORE_FLAG_VALUE == 1) >> const_tiny_rtx[1][(int) BImode] = const1_rtx; >> >> + for (mode = GET_CLASS_NARROWEST_MODE (MODE_POINTER_BOUNDS); >> + mode != VOIDmode; >> + mode = GET_MODE_WIDER_MODE (mode)) >> + const_tiny_rtx[0][mode] = immed_double_const (0, 0, mode); > > I'm pretty sure GET_CLASS_NARROWEST_MODE should be taking a class, not a > mode as its argument. So something is clearly wrong here...
MODE_POINTER_BOUNDS is a class. Modes in this class are BND32mode and BND64mode. Ilya > > > jeff
