diff options
Diffstat (limited to 'gcc/c-common.h')
| -rw-r--r-- | gcc/c-common.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/gcc/c-common.h b/gcc/c-common.h index 81a5127..cc597a7 100644 --- a/gcc/c-common.h +++ b/gcc/c-common.h @@ -167,32 +167,79 @@ extern tree simple_type_promotes_to PARAMS ((tree)); /* These macros provide convenient access to the various _STMT nodes created when parsing template declarations. */ + +/* IF_STMT accessors. These give access to the condtion of the if + statement, the then block of the if statement, and the else block + of the if stsatement if it exists. */ #define IF_COND(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 0) #define THEN_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 1) #define ELSE_CLAUSE(NODE) TREE_OPERAND (IF_STMT_CHECK (NODE), 2) + +/* WHILE_STMT accessors. These give access to the condtion of the + while statement and the body of the while statement, respectively. */ #define WHILE_COND(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 0) #define WHILE_BODY(NODE) TREE_OPERAND (WHILE_STMT_CHECK (NODE), 1) + +/* DO_STMT accessors. These give access to the condition of the do + statement and the body of the do statement, respectively. */ #define DO_COND(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 0) #define DO_BODY(NODE) TREE_OPERAND (DO_STMT_CHECK (NODE), 1) + +/* RETURN_STMT accessor. This gives the expression associated with a + return statement. */ #define RETURN_EXPR(NODE) TREE_OPERAND (RETURN_STMT_CHECK (NODE), 0) + +/* EXPR_STMT accessor. This gives the expression associated with an + expression statement. */ #define EXPR_STMT_EXPR(NODE) TREE_OPERAND (EXPR_STMT_CHECK (NODE), 0) + +/* FOR_STMT accessors. These give access to the init statement, + condition, update expression, and body of the for statement, + respectively. */ #define FOR_INIT_STMT(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 0) #define FOR_COND(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 1) #define FOR_EXPR(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 2) #define FOR_BODY(NODE) TREE_OPERAND (FOR_STMT_CHECK (NODE), 3) + +/* SWITCH_STMT accessors. These give access to the condition and body + of the switch statement, respectively. */ #define SWITCH_COND(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 0) #define SWITCH_BODY(NODE) TREE_OPERAND (SWITCH_STMT_CHECK (NODE), 1) + +/* CASE_LABEL accessors. These give access to the high and low values + of a case label, respectively. */ #define CASE_LOW(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 0) #define CASE_HIGH(NODE) TREE_OPERAND (CASE_LABEL_CHECK (NODE), 1) + +/* GOTO_STMT accessor. This gives access to the label associated with + a goto statement. */ #define GOTO_DESTINATION(NODE) TREE_OPERAND (GOTO_STMT_CHECK (NODE), 0) + +/* COMPOUND_STMT accessor. This gives access to the TREE_LIST of + statements assocated with a compound statement. The result is the + first statement in the list. Succeeding nodes can be acccessed by + calling TREE_CHAIN on a node in the list. */ #define COMPOUND_BODY(NODE) TREE_OPERAND (COMPOUND_STMT_CHECK (NODE), 0) + +/* ASM_STMT accessors. ASM_STRING returns a STRING_CST for the + instruction (e.g., "mov x, y"). ASM_OUTPUTS, ASM_INPUTS, and + ASM_CLOBBERS represent the outputs, inputs, and clobbers for the + statement. */ #define ASM_CV_QUAL(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 0) #define ASM_STRING(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 1) #define ASM_OUTPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 2) #define ASM_INPUTS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 3) #define ASM_CLOBBERS(NODE) TREE_OPERAND (ASM_STMT_CHECK (NODE), 4) + +/* DECL_STMT accessor. This gives access to the DECL associated with + the given declaration statement. */ #define DECL_STMT_DECL(NODE) TREE_OPERAND (DECL_STMT_CHECK (NODE), 0) + +/* STMT_EXPR accessor. */ #define STMT_EXPR_STMT(NODE) TREE_OPERAND (STMT_EXPR_CHECK (NODE), 0) + +/* LABEL_STMT accessor. This gives access to the label associated with + the given label statement. */ #define LABEL_STMT_LABEL(NODE) TREE_OPERAND (LABEL_STMT_CHECK (NODE), 0) /* Nonzero if this SCOPE_STMT is for the beginning of a scope. */ |