Hi, setup_incoming_varargs_64 in i386.c has
/* Compute address to jump to : label - 5*eax + nnamed_sse_arguments*5 */ tmp_reg = gen_reg_rtx (Pmode); nsse_reg = gen_reg_rtx (Pmode); emit_insn (gen_zero_extendqidi2 (nsse_reg, gen_rtx_REG (QImode, AX_REG))); emit_insn (gen_rtx_SET (VOIDmode, tmp_reg, gen_rtx_MULT (Pmode, nsse_reg, GEN_INT (4)))); if (cum->sse_regno) emit_move_insn (nsse_reg, gen_rtx_CONST (DImode, gen_rtx_PLUS (DImode, label_ref, GEN_INT (cum->sse_regno * 4)))); else emit_move_insn (nsse_reg, label_ref); emit_insn (gen_subdi3 (nsse_reg, nsse_reg, tmp_reg)); The comments don't match the code. Shout the comments be /* Compute address to jump to : label - 4*eax + nnamed_sse_arguments*4 */ Thanks. -- H.J.