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Tighten up error checking in parser, disallowing instructions that f.e.,

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add pointers together.

llvm-svn: 3660
This commit is contained in:
Chris Lattner 2002-09-10 19:57:26 +00:00
parent 5ee202eb3e
commit a7e9aba28c
1 changed files with 23 additions and 3 deletions
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26
lib/AsmParser/llvmAsmParser.y
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@ -686,6 +686,7 @@ Module *RunVMAsmParser(const string &Filename, FILE *F) {
// Binary Operators
%type <BinaryOpVal> BinaryOps // all the binary operators
%type <BinaryOpVal> ArithmeticOps LogicalOps SetCondOps // Binops Subcatagories
%token <BinaryOpVal> ADD SUB MUL DIV REM AND OR XOR
%token <BinaryOpVal> SETLE SETGE SETLT SETGT SETEQ SETNE // Binary Comarators
@ -720,8 +721,11 @@ EINT64VAL : EUINT64VAL {
// Operations that are notably excluded from this list include:
// RET, BR, & SWITCH because they end basic blocks and are treated specially.
//
BinaryOps : ADD | SUB | MUL | DIV | REM | AND | OR | XOR;
BinaryOps : SETLE | SETGE | SETLT | SETGT | SETEQ | SETNE;
ArithmeticOps: ADD | SUB | MUL | DIV | REM;
LogicalOps : AND | OR | XOR;
SetCondOps : SETLE | SETGE | SETLT | SETGT | SETEQ | SETNE;
BinaryOps : ArithmeticOps | LogicalOps | SetCondOps;
ShiftOps : SHL | SHR;
// These are some types that allow classification if we only want a particular
@ -1507,7 +1511,23 @@ ValueRefList : ResolvedVal { // Used for call statements, and memory insts...
// ValueRefListE - Just like ValueRefList, except that it may also be empty!
ValueRefListE : ValueRefList | /*empty*/ { $$ = 0; };
InstVal : BinaryOps Types ValueRef ',' ValueRef {
InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint())
ThrowException("Arithmetic operator requires integer or FP operands!");
$$ = BinaryOperator::create($1, getVal(*$2, $3), getVal(*$2, $5));
if ($$ == 0)
ThrowException("binary operator returned null!");
delete $2;
}
| LogicalOps Types ValueRef ',' ValueRef {
if (!(*$2)->isIntegral())
ThrowException("Logical operator requires integral operands!");
$$ = BinaryOperator::create($1, getVal(*$2, $3), getVal(*$2, $5));
if ($$ == 0)
ThrowException("binary operator returned null!");
delete $2;
}
| SetCondOps Types ValueRef ',' ValueRef {
$$ = BinaryOperator::create($1, getVal(*$2, $3), getVal(*$2, $5));
if ($$ == 0)
ThrowException("binary operator returned null!");