printf("\t%s %%%s, %%%s\n", instr, KID_REG(1), KID_REG(0));
}
+void gen_id_eno(struct treenode *bnode)
+{
+ printf("\t//gen_id_eno\n");
+ KIDKIDREG2PARM(1,0);
+ printf("\taddq %%%s, %%%s\n", KIDKID_REG(1,0), KIDKID_REG(1,1));
+ printf("\tsubq %%%s, %%%s\n", KIDKID_REG(1,1), BN_REG);
+}
+
void gen_e_field(struct treenode *bnode, char *instr)
{
printf("\t//gen_e_field(%s)\n", instr);
printf("\t//gen_field_imm\n");
KIDKIDREG2PARM(0,0);
KIDREG2ID(1);
-
- if(KID_VAL(1) == 1 && strcmp(KID_REG(0), BN_REG) == 0) {
- printf("\t//multiplikation mit 1 wegoptimiert\n");
- } else {
- printf("\timulq $%d, %d(%%%s), %%%s\n", KID_VAL(1), bnode->kids[0]->soffset * 8, KIDKID_REG(0, 0), BN_REG);
- }
+ printf("\timulq $%d, %d(%%%s), %%%s\n", KID_VAL(1), bnode->kids[0]->soffset * 8, KIDKID_REG(0, 0), BN_REG);
}
void gen_e_imm(struct treenode *bnode, char *instr)
} else {
printf("\timulq $%d, %%%s, %%%s\n", KID_VAL(0), KID_REG(1), BN_REG);
}
- } else if(strcmp(instr, "addq") == 0) {
+ } else { /* addq */
printf("\taddq $%d, %%%s\n", KID_VAL(0), BN_REG);
- } else { /* subq */
- moveimm(KID_VAL(0), BN_REG);
- printf("\t%s %%%s, %%%s\n", instr, KID_REG(1), BN_REG);
}
}
expr: imm # 1 # moveimm(BN_VAL, BN_REG);
-expr: O_SUB(expr,expr) # 1 # gen_e_eno(bnode, "subq");
+expr: O_SUB(expr,expr) # 2 # gen_e_eno(bnode, "subq");
expr: O_SUB(expr,O_FIELD(expr)) # 2 # gen_e_field(bnode, "subq");
-expr: O_SUB(expr,imm) # 2 # gen_e_imm(bnode, "subq");
-expr: O_SUB(imm,expr) # 2 # gen_imm_eno(bnode, "subq");
-expr: O_SUB(imm,O_FIELD(expr)) # 2 # gen_imm_field(bnode);
+expr: O_SUB(expr,imm) # 1 # gen_e_imm(bnode, "subq");
expr: O_SUB(expr,O_SUB(O_ID,expr)) # 2 # gen_subspecial(bnode, 0);
expr: O_SUB(expr,O_SUB(imm,expr)) # 2 # gen_subspecial(bnode, 1);
+expr: O_SUB(expr, O_ADD(O_ID,expr)) # 1 # gen_id_eno(bnode);
+
expr: O_SUB(expr,O_MUL(O_MONE,expr)) # 1 # gen_lea(bnode,0);
expr: O_SUB(expr,O_MUL(O_MTWO,expr)) # 1 # gen_lea(bnode,0);
expr: O_SUB(expr,O_MUL(O_MFOUR,expr)) # 1 # gen_lea(bnode,0);
expr: O_ADD(expr,expr) # 1 # gen_e_eno(bnode, "addq");
expr: O_ADD(expr,imm) # 2 # gen_e_imm(bnode, "addq");
-expr: O_ADD(imm,expr) # 2 # gen_imm_eno(bnode, "addq");
+expr: O_ADD(imm,expr) # 1 # gen_imm_eno(bnode, "addq");
expr: O_ADD(expr,O_FIELD(expr)) # 2 # gen_e_field(bnode, "addq");