Hello
We want to know what are TREE_CODES and TREE_TYPES;we were
trying to do the assignment in gimple pass, we got a code which checks the
number of assignment statements but now we want to check the deceleration
statements we browsed through the tree.def , tree.h and tree.c files and
came to know about the TREE_CODES, what we have understood is that the
TREE_CODE(stmt) is a function and it takes the current statements from the c
program and tries to find out the lval and rval, now if TREE_CODE of lval==
VAR_DECL then incr the assignments statements. We understood this code but
how to check the other constructs like (arithmetic expression), logical
expre, etc i have attached the code for your reference, can we add a new
case statements like this, sir kindly tell us what wrong we have done we are
not able to get the count
#include "config.h"
#include "system.h"
#include "coretypes.h"
#include "tm.h"
#include "tree.h"
#include "rtl.h"
#include "tm_p.h"
#include "hard-reg-set.h"
#include "basic-block.h"
#include "output.h"
#include "flags.h"
#include "function.h"
#include "expr.h"
#include "ggc.h"
#include "langhooks.h"
#include "diagnostic.h"
#include "tree-flow.h"
#include "timevar.h"
#include "tree-dump.h"
#include "tree-pass.h"
#include "toplev.h"
#include "except.h"
#include "cfgloop.h"
#include "cfglayout.h"
#include "tree-ssa-propagate.h"
#include "value-prof.h"
#include "pointer-set.h"
#include "tree-inline.h"
/* global declarations */
extern FILE * dump_file;
int numassigns,totalassigns,intvar;
void initialize_stats(void)
{
numassigns=0;
totalassigns=0;
intvar=0;
}
void printstatistics(void)
{
printf("\n\nNumber of assignment statements::
%d\n\n",numassigns);
printf("\n\nTotal Number of assignment statements (including
temp vars):: %d\n\n",totalassigns);
printf("\n\nNumber of INTEGER statements :: %d\n\n",intvar);
if(flag_pass_gccwk09){
fprintf(dump_file,"\n\nNumber of assignment statements::
%d\n\n",numassigns);
fprintf(dump_file,"\n\nTotal Number of assignment
statements (including temp vars):: %d\n\n",totalassigns);
}
}
void process_statement(tree stmt)
{
tree lval,rval;
switch (TREE_CODE(stmt)){
case GIMPLE_MODIFY_STMT:
lval=GIMPLE_STMT_OPERAND(stmt,0);
rval=GIMPLE_STMT_OPERAND(stmt,1);
if(TREE_CODE(lval) == VAR_DECL) {
if(!DECL_ARTIFICIAL(lval)){
//print_generic_stmt(stderr,stmt,0);
numassigns++;
}
totalassigns++;
}
break;
case DECL:
if(TREE_CODE(TREE_TYPE(stmt)) == INTEGER_TYPE) {
intvar++;
}
default :
break;
}
}
/* Note the return type of the below function */
static unsigned int gccwk09_main(void)
{
basic_block bb;
block_stmt_iterator si;
initialize_stats();
FOR_EACH_BB (bb)
{
for (si=bsi_start(bb); !bsi_end_p(si) ; bsi_next(&si) )
{
tree stmt = bsi_stmt(si);
print_generic_stmt(stderr,stmt,0);
process_statement(stmt);
}
}
printstatistics();
return 0;
}
struct tree_opt_pass pass_gccwk09 =
{ "gccwk09",
NULL,
gccwk09_main,
NULL,
NULL,
0,
0,
0,
0,
0,
0,
0,
0
};
waiting for your reply
thanking you
Anand Raj S Ulle , Shivmurthy PM
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