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| author | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-10-12 12:50:58 -0400 |
|---|---|---|
| committer | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-10-12 12:50:58 -0400 |
| commit | f4dc0f98a5fc6b6c78400798d545b4f119bef665 (patch) | |
| tree | 5b9f7de747572f65f2a3d7edb61439699c03a0e5 /minic | |
| parent | d1b2cf2d49cad7978b7c6307a2c17cc3d34aa42c (diff) | |
| download | roux-f4dc0f98a5fc6b6c78400798d545b4f119bef665.tar.gz | |
add a cheap implementation of sizeof
Diffstat (limited to 'minic')
| -rw-r--r-- | minic/minic.y | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/minic/minic.y b/minic/minic.y index 79fb5f2..2acd5a2 100644 --- a/minic/minic.y +++ b/minic/minic.y @@ -501,7 +501,7 @@ mkstmt(int t, void *p1, void *p2, void *p3) %token <n> NUM %token <n> STR %token <n> IDENT -%token PP MM LE GE +%token PP MM LE GE SIZEOF %token TINT TLNG %token IF ELSE WHILE @@ -592,11 +592,12 @@ pref: post post: NUM | STR | IDENT - | '(' expr ')' { $$ = $2; } - | IDENT '(' arg0 ')' { $$ = mknode('C', $1, $3); } - | post '[' expr ']' { $$ = mkidx($1, $3); } - | post PP { $$ = mknode('P', $1, 0); } - | post MM { $$ = mknode('M', $1, 0); } + | SIZEOF '(' type ')' { $$ = mknode('N', 0, 0); $$->u.n = SIZE($3); } + | '(' expr ')' { $$ = $2; } + | IDENT '(' arg0 ')' { $$ = mknode('C', $1, $3); } + | post '[' expr ']' { $$ = mkidx($1, $3); } + | post PP { $$ = mknode('P', $1, 0); } + | post MM { $$ = mknode('M', $1, 0); } ; arg0: arg1 @@ -620,6 +621,7 @@ yylex() { "if", IF }, { "else", ELSE }, { "while", WHILE }, + { "sizeof", SIZEOF }, { 0, 0 } }; int i, c, c1, n; |