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codea: optimierungen fuer fieldzugriffe bei mul, sub und add
author
Bernhard Urban
<lewurm@gmail.com>
Mon, 17 May 2010 23:11:47 +0000
(
01:11
+0200)
committer
Bernhard Urban
<lewurm@gmail.com>
Mon, 17 May 2010 23:11:47 +0000
(
01:11
+0200)
codea/code.bfe
patch
|
blob
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diff --git
a/codea/code.bfe
b/codea/code.bfe
index 377082dfc93676bad846a6dd75190e1268433540..14cde11d6ab5ce0108f0a7807a2d1c5488e69c78 100644
(file)
--- a/
codea/code.bfe
+++ b/
codea/code.bfe
@@
-40,6
+40,19
@@
void gen_e_field(struct treenode *bnode, char *instr)
printf("\t%s %d(%%%s), %%%s\n", instr, bnode->kids[1]->soffset * 8, KIDKID_REG(1,0), KID_REG(0));
}
printf("\t%s %d(%%%s), %%%s\n", instr, bnode->kids[1]->soffset * 8, KIDKID_REG(1,0), KID_REG(0));
}
+void gen_field_imm(struct treenode *bnode)
+{
+ 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);
+ }
+}
+
void gen_e_imm(struct treenode *bnode, char *instr)
{
printf("\t//gen_e_imm(%s)\n", instr);
void gen_e_imm(struct treenode *bnode, char *instr)
{
printf("\t//gen_e_imm(%s)\n", instr);
@@
-63,6
+76,16
@@
void gen_e_imm(struct treenode *bnode, char *instr)
}
}
}
}
+void gen_imm_field(struct treenode *bnode)
+{
+ printf("\t//gen_imm_field\n");
+ KIDREG2ID(0);
+ KIDKIDREG2PARM(1, 0);
+
+ moveimm(KID_VAL(0), BN_REG);
+ printf("\tsubq %d(%%%s), %%%s\n", bnode->kids[1]->soffset * 8, KIDKID_REG(1, 0), BN_REG);
+}
+
void gen_imm_eno(struct treenode *bnode, char *instr)
{
printf("\t//gen_imm_eno(%s)\n", instr);
void gen_imm_eno(struct treenode *bnode, char *instr)
{
printf("\t//gen_imm_eno(%s)\n", instr);
@@
-143,9
+166,10
@@
expr: O_ID # 0 #
expr: imm # 1 # moveimm(BN_VAL, BN_REG);
expr: O_SUB(expr,expr) # 1 # gen_e_eno(bnode, "subq");
expr: imm # 1 # moveimm(BN_VAL, BN_REG);
expr: O_SUB(expr,expr) # 1 # 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(expr,imm) # 2 # gen_e_imm(bnode, "subq");
expr: O_SUB(imm,expr) # 2 # gen_imm_eno(bnode, "subq");
-expr: O_SUB(
expr,O_FIELD(expr)) # 2 # gen_e_field(bnode, "subq"
);
+expr: O_SUB(
imm,O_FIELD(expr)) # 2 # gen_imm_field(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_MONE,expr)) # 1 # gen_lea(bnode,0);
expr: O_SUB(expr,O_MUL(O_MTWO,expr)) # 1 # gen_lea(bnode,0);
@@
-158,11
+182,14
@@
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_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,O_FIELD(expr)) # 2 # gen_e_field(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_MUL(expr,expr) # 1 # gen_e_eno(bnode, "imulq");
expr: O_ADD(expr,imm) # 2 # gen_e_imm(bnode, "addq");
expr: O_ADD(imm,expr) # 2 # gen_imm_eno(bnode, "addq");
expr: O_MUL(expr,expr) # 1 # gen_e_eno(bnode, "imulq");
+expr: O_MUL(expr,O_FIELD(expr)) # 2 # gen_e_field(bnode, "imulq");
expr: O_MUL(expr,imm) # 1 # gen_e_imm(bnode, "imulq");
expr: O_MUL(expr,imm) # 1 # gen_e_imm(bnode, "imulq");
+expr: O_MUL(O_FIELD(expr),imm) # 1 # gen_field_imm(bnode);
expr: O_MUL(imm,expr) # 1 # gen_imm_eno(bnode, "imulq");
expr: O_OR(expr,expr) # 1 # gen_e_eno(bnode, "orq");
expr: O_MUL(imm,expr) # 1 # gen_imm_eno(bnode, "imulq");
expr: O_OR(expr,expr) # 1 # gen_e_eno(bnode, "orq");