gesamt: enter verwenden

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

diff --git a/gesamt/code.bfe b/gesamt/code.bfe
index 76175ab861406e4a53d3926abe98321e77bf09f0..dba50235426bbed1fe7f5ca1fafd391771e66342 100644 (file)
--- a/gesamt/code.bfe
+++ b/gesamt/code.bfe
@@ -148,7 +148,7 @@ void gen_eqless(struct treenode *bnode, char *op, short e0, short e1, short deep
 
 void gen_lea(struct treenode *bnode, short e)
 {
-       printf("\t//gen_lea(e: %i)\n", e);
+       printf("\t//gen_lea(e= %i)\n", e);
        KIDREG2PARM(0);
        if(e) {
                KIDKIDREG2PARM(1,0);
@@ -187,12 +187,15 @@ void assign_var(struct treenode *bnode)
        printf("\tsub $%d, %%%s\n", KIDKID_VAL(0,1), KID_REG(1));
 }
 
+/* dirty...*/
+static short xchg_param[7] = {0};
 void make_call(struct treenode *bnode)
 {
        int j;
        printf("\t//params pushen\n");
        for(j = 0; j < bnode->soffset; j++) {
-               printf("\txchg %%%s, %d(%%rsp)\n", param_reg(j), j*8);
+               if(xchg_param[j] == 1)
+                       printf("\txchg %%%s, %d(%%rsp)\n", param_reg(j), j*8);
        }
        printf("\t//vars pushen\n");
        for(j = 6; j > 6 - bnode->vars; j--) {
@@ -229,7 +232,8 @@ void make_call(struct treenode *bnode)
 
 void prep_arg(struct treenode *bnode, int moveit)
 {
-       printf("\t//args-nr.: %i (%%%s) [moveit: %i]\n", bnode->soffset, param_reg(bnode->soffset), moveit);
+       printf("\t//args-nr-> %i (%%%s) [moveit= %i]\n", bnode->soffset, param_reg(bnode->soffset), moveit);
+       xchg_param[bnode->soffset] = 1;
        if(moveit) { /* expr */
                if((BN_REG == (char *) NULL) || (bnode->kids[1] != TREENULL && bnode->kids[1]->op == O_ID && bnode->kids[1]->kids[0] == TREENULL && bnode->kids[1]->kids[1] == TREENULL)) {
                        if(bnode->kids[1]->name != (char *) NULL && strcmp(bnode->kids[1]->name,"this")!=0) {
@@ -237,6 +241,7 @@ void prep_arg(struct treenode *bnode, int moveit)
                                printf("\tpushq %%%s\n", KID_REG(1));
                        } else {
                                printf("\tpushq %%%s\n", param_reg(bnode->soffset));
+                               xchg_param[bnode->soffset] = 0;
                        }
                } else {
                        printf("\tpushq %%%s\n", BN_REG);
@@ -244,6 +249,9 @@ void prep_arg(struct treenode *bnode, int moveit)
        } else { /* just O_ID */
                KIDREG2PARM(0);
                printf("\tpushq %%%s\n", KID_REG(0));
+               if(strcmp(KID_REG(0), param_reg(bnode->soffset)) == 0) {
+                       xchg_param[bnode->soffset] = 0;
+               }
        }
 }