Hello, Since r188786, expmed.c has this code:
bool is_neg; (...) if (CONST_INT_P (scalar_op1)) { coeff = INTVAL (scalar_op1); is_neg = coeff < 0; } else if (CONST_DOUBLE_P (scalar_op1)) { if (CONST_DOUBLE_HIGH (scalar_op1) == 0 && CONST_DOUBLE_LOW (scalar_op1) > 0) { coeff = CONST_DOUBLE_LOW (scalar_op1); is_neg = false; } else if (CONST_DOUBLE_LOW (scalar_op1) == 0) { coeff = CONST_DOUBLE_HIGH (scalar_op1); (...) goto skip_synth; } } else goto skip_synth; (...) if (is_neg && mode_bitsize > HOST_BITS_PER_WIDE_INT) This results in warnings for expmed.c during bootstrap on powerpc64-unknown-linux-gnu: ../../trunk/gcc/expmed.c: In function ‘rtx_def* expand_mult(machine_mode, rtx, rtx, rtx, int)’: ../../trunk/gcc/expmed.c:3215:7: warning: ‘is_neg’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (is_neg && mode_bitsize > HOST_BITS_PER_WIDE_INT) ^ ../../trunk/gcc/expmed.c:3236:7: warning: ‘coeff’ may be used uninitialized in this function [-Wmaybe-uninitialized] if (choose_mult_variant (mode, coeff, &algorithm, &variant, max_cost)) ^ Could you have a look please? Ciao! Steven