Reduced Memory usage by another 50%

This commit is contained in:
Jeremiah Orians 2018-07-26 19:51:44 -04:00
parent 7833cd5660
commit eb8b3e4eb4
No known key found for this signature in database
GPG Key ID: 7457821534D2ACCD
7 changed files with 35 additions and 28 deletions

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@ -34,6 +34,7 @@ Brought back common recursion
Reorged logic tree to reduce complexity
Simplified expression
Changed EOF detection logic to deal with unsigned bits
Reduced Memory usage down from 50MB to 2MB
** Fixed
Correct bug in how \" is treated

1
cc.c
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@ -104,6 +104,7 @@ int main(int argc, char** argv)
global_token = reverse_list(global_token);
initialize_types();
reset_hold_string();
struct token_list* output_list = program(NULL);
/* Output the program we have compiled */

2
cc.h
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@ -31,6 +31,7 @@
void file_print(char* s, FILE* f);
int match(char* a, char* b);
char* copy_string(char* target, char* source);
void reset_hold_string();
struct type
{
@ -79,3 +80,4 @@ struct token_list* globals_list;
/* Make our string collection more efficient */
char* hold_string;
int string_index;

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@ -32,7 +32,6 @@ int clearWhiteSpace(int c)
return c;
}
int string_index;
int consume_byte(int c)
{
hold_string[string_index] = c;

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@ -127,34 +127,36 @@ int escape_lookup(char* c)
char* collect_regular_string(char* string)
{
int j = 0;
int i = 0;
char* message = calloc(MAX_STRING, sizeof(char));
string_index = 0;
/* 34 == " */
message[0] = 34;
hold_string[0] = 34;
while(string[j] != 0)
{
if((string[j] == '\\') & (string[j + 1] == 'x'))
{
message[i] = escape_lookup(string + j);
hold_string[string_index] = escape_lookup(string + j);
j = j + 4;
}
else if(string[j] == '\\')
{
message[i] = escape_lookup(string + j);
hold_string[string_index] = escape_lookup(string + j);
j = j + 2;
}
else
{
message[i] = string[j];
hold_string[string_index] = string[j];
j = j + 1;
}
i = i + 1;
string_index = string_index + 1;
}
message[i] = 34;
message[i + 1] = LF;
char* message = calloc(string_index + 3, sizeof(char));
copy_string(message, hold_string);
reset_hold_string();
message[string_index] = 34;
message[string_index + 1] = LF;
return message;
}
@ -162,45 +164,47 @@ char* collect_regular_string(char* string)
char* collect_weird_string(char* string)
{
int j = 1;
int k = 1;
string_index = 1;
int temp;
char* table = "0123456789ABCDEF";
char* hold = calloc(MAX_STRING, sizeof(char));
/* 39 == ' */
hold[0] = 39;
hold_string[0] = 39;
while(string[j] != 0)
{
hold[k] = ' ';
hold_string[string_index] = ' ';
if((string[j] == '\\') & (string[j + 1] == 'x'))
{
hold[k + 1] = upcase(string[j + 2]);
hold[k + 2] = upcase(string[j + 3]);
hold_string[string_index + 1] = upcase(string[j + 2]);
hold_string[string_index + 2] = upcase(string[j + 3]);
j = j + 4;
}
else if(string[j] == '\\')
{
temp = escape_lookup(string + j);
hold[k + 1] = table[(temp >> 4)];
hold[k + 2] = table[(temp & 15)];
hold_string[string_index + 1] = table[(temp >> 4)];
hold_string[string_index + 2] = table[(temp & 15)];
j = j + 2;
}
else
{
hold[k + 1] = table[(string[j] >> 4)];
hold[k + 2] = table[(string[j] & 15)];
hold_string[string_index + 1] = table[(string[j] >> 4)];
hold_string[string_index + 2] = table[(string[j] & 15)];
j = j + 1;
}
k = k + 3;
string_index = string_index + 3;
}
hold[k] = ' ';
hold[k + 1] = '0';
hold[k + 2] = '0';
hold[k + 3] = 39;
hold[k + 4] = LF;
char* hold = calloc(string_index + 6, sizeof(char));
copy_string(hold, hold_string);
reset_hold_string();
hold[string_index] = ' ';
hold[string_index + 1] = '0';
hold[string_index + 2] = '0';
hold[string_index + 3] = 39;
hold[string_index + 4] = LF;
return hold;
}

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@ -9,7 +9,7 @@ b45fae655b7f848b28ebdb8eb2e30ae789fbcf7920bc315395d53986bb1adae4 test/results/t
d511db73158a9544a5b5f828a79751e3de8a04b81c143fd0c146fc22c938aa9f test/results/test08-binary
6831ba0c4e01cea5fb524d811e75542875512fb417baa03d2515278d5b0ee6a5 test/results/test09-binary
ef179cd359ba1d61d45089e314cd4ac2069c8dc4dd7494d7c766344ea3c8cf88 test/results/test10-binary
c512c1c2bbe3e6fa5e727f41be286f95a0906d8d9c05165f70c0046918150c2b test/results/test100-binary
c526b47458dd06a47fee8d83533d71f48c51867b1c358e43f69da970f7d06338 test/results/test100-binary
5aaf399fe706d4a8c85c121c75ada29a65c293b57c98e8999961a2ef0bab0d62 test/results/test11-binary
4f8111e73e07255ae203963438c82ea8bcff7474e1594b52b426c58a03cb30eb test/results/test12-binary
dd74dabfdce8657ff440c1eef531cbf67a64854f2020d4d6bcb65c9cc2d199cb test/results/test13-binary

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@ -1 +1 @@
9fb571e4b35e0a169a2a4730a714f17b1695d93775c26763337b804607fe5193 test/test100/proof
5f65ea0157c4526f8d6f5887a045c6fcbb809787feb45ee3317699de3e480012 test/test100/proof