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codea: weitere optimierung fuer sub/add
author
Bernhard Urban
<lewurm@gmail.com>
Tue, 18 May 2010 15:24:21 +0000
(17:24 +0200)
committer
Bernhard Urban
<lewurm@gmail.com>
Tue, 18 May 2010 15:29:25 +0000
(17:29 +0200)
codea/code.bfe
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diff --git
a/codea/code.bfe
b/codea/code.bfe
index e88f2eb2ec87603f03b18a2a432921a2af0cbdd1..654d669ba1afafef1d9a0860c2f28eeca94d4cfb 100644
(file)
--- a/
codea/code.bfe
+++ b/
codea/code.bfe
@@
-39,6
+39,14
@@
void gen_e_eno(struct treenode *bnode, char *instr)
printf("\t%s %%%s, %%%s\n", instr, KID_REG(1), KID_REG(0));
}
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);
void gen_e_field(struct treenode *bnode, char *instr)
{
printf("\t//gen_e_field(%s)\n", instr);
@@
-193,6
+201,8
@@
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_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_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);