codea: field optimierung fuer OR

[uebersetzerbau-ss10.git] / codea / code.bfe

diff --git a/codea/code.bfe b/codea/code.bfe
index a1eb1e184db6e7d1d3f943e803cc5d4f6822f17c..c184545647a072bb69a129cd6205c86fef4540cd 100644 (file)
--- a/codea/code.bfe
+++ b/codea/code.bfe
@@ -32,10 +32,18 @@ void gen_e_eno(struct treenode *bnode, char *instr)
        printf("\t%s %%%s, %%%s\n", instr, KID_REG(1), KID_REG(0));
 }
 
+void gen_e_field(struct treenode *bnode, char *instr)
+{
+       printf("\t//gen_e_field(%s)\n", instr);
+       KIDREG2ID(0);
+       KIDKIDREG2PARM(1,0);
+       printf("\t%s %d(%%%s), %%%s\n", instr, bnode->kids[1]->soffset * 8, KIDKID_REG(1,0), KID_REG(0));
+}
+
 void gen_e_imm(struct treenode *bnode, char *instr)
 {
        printf("\t//gen_e_imm(%s)\n", instr);
-       KIDREG2ID(0);
+       KIDREG2PARM(0);
        KIDREG2ID(1);
        /* man kann sich ein move der konstante bei der multiplikation ersparen */
        if(strcmp(instr, "imulq") == 0) {
@@ -81,12 +89,7 @@ void gen_eqless(struct treenode *bnode, char *op, short e0, short e1, short deep
                        printf("\tcmp $%d, %%%s\n", KID_VAL(1), KIDKIDKID_REG(0,0,0));
                }
        } else if(!e0 && e1) {
-               if(strcmp("e", op) == 0) {
                        printf("\tcmp $%d, %%%s\n", KID_VAL(0), KID_REG(1));
-               } else {
-                       moveimm(KID_VAL(0), BN_REG);
-                       printf("\tcmp %%%s, %%%s\n", KID_REG(1), BN_REG);
-               }
        }
        printf("\tset%s %%%s\n", op, reg_64to8l(BN_REG));
        printf("\tand $1, %%%s\n", BN_REG);
@@ -124,15 +127,15 @@ expr: imm # 1 # moveimm(BN_VAL, BN_REG);
 expr: O_SUB(expr,expr) # 1 # gen_e_eno(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(O_ID,O_MUL(O_MONE,expr)) # 1 # gen_lea(bnode,0);
-expr: O_SUB(O_ID,O_MUL(O_MTWO,expr)) # 1 # gen_lea(bnode,0);
-expr: O_SUB(O_ID,O_MUL(O_MFOUR,expr)) # 1 # gen_lea(bnode,0);
-expr: O_SUB(O_ID,O_MUL(O_MEIGHT,expr)) # 1 # gen_lea(bnode,0);
+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_SUB(expr,O_MUL(O_MEIGHT,expr)) # 1 # gen_lea(bnode,0);
 
-expr: O_SUB(O_ID,O_MUL(expr,O_MONE)) # 1 # gen_lea(bnode,1);
-expr: O_SUB(O_ID,O_MUL(expr,O_MTWO)) # 1 # gen_lea(bnode,1);
-expr: O_SUB(O_ID,O_MUL(expr,O_MFOUR)) # 1 # gen_lea(bnode,1);
-expr: O_SUB(O_ID,O_MUL(expr,O_MEIGHT)) # 1 # gen_lea(bnode,1);
+expr: O_SUB(expr,O_MUL(expr,O_MONE)) # 1 # gen_lea(bnode,1);
+expr: O_SUB(expr,O_MUL(expr,O_MTWO)) # 1 # gen_lea(bnode,1);
+expr: O_SUB(expr,O_MUL(expr,O_MFOUR)) # 1 # gen_lea(bnode,1);
+expr: O_SUB(expr,O_MUL(expr,O_MEIGHT)) # 1 # gen_lea(bnode,1);
 
 expr: O_ADD(expr,expr) # 1 # gen_e_eno(bnode, "addq");
 expr: O_ADD(expr,imm)    # 2 # gen_e_imm(bnode, "addq");
@@ -144,10 +147,11 @@ expr: O_MUL(imm,expr)  # 1 # gen_imm_eno(bnode, "imulq");
 
 expr: O_OR(expr,expr) # 1 # gen_e_eno(bnode, "orq");
 expr: O_OR(expr,imm)    # 2 # gen_e_imm(bnode, "orq");
+expr: O_OR(expr,O_FIELD(expr)) # 2 # gen_e_field(bnode, "orq");
 
 expr: O_LESS(expr,expr) # 3 # gen_eqless(bnode, "l", 1, 1, 0);
 expr: O_LESS(expr,imm)  # 3 # gen_eqless(bnode, "l", 1, 0, 0);
-expr: O_LESS(imm,expr)  # 3 # gen_eqless(bnode, "l", 0, 1, 0);
+expr: O_LESS(imm,expr)  # 3 # gen_eqless(bnode, "g", 0, 1, 0);
 
 expr: O_EQ(expr,expr) # 3 # gen_eqless(bnode, "e", 1, 1, 0);
 expr: O_EQ(expr,imm)    # 3 # gen_eqless(bnode, "e", 1, 0, 0);
@@ -165,12 +169,14 @@ imm: O_ADD(imm,imm)  # 0 # BN_VAL = KID_VAL(0) + KID_VAL(1);
 imm: O_SUB(imm,imm)  # 0 # BN_VAL = KID_VAL(0) - KID_VAL(1);
 imm: O_MUL(imm,imm)  # 0 # BN_VAL = KID_VAL(0) * KID_VAL(1);
 imm: O_LESS(imm,imm) # 0 # BN_VAL = KID_VAL(0) < KID_VAL(1) ? 1 : 0;
-imm: O_EQ(imm,imm)   # 0 # BN_VAL = KID_VAL(0) = KID_VAL(1) ? 1 : 0;
+imm: O_EQ(imm,imm)   # 0 # BN_VAL = KID_VAL(0) == KID_VAL(1) ? 1 : 0;
+imm: O_OR(imm,imm)   # 0 # BN_VAL = KID_VAL(0) | KID_VAL(1);
 imm: O_NUM # 0 #
 imm: O_MONE # 0 #
 imm: O_MTWO # 0 #
 imm: O_MFOUR # 0 #
 imm: O_MEIGHT # 0 #
+imm: O_NULL # 0 #
 
 %%