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Add a 'tail' marker for call instructions, patch contributed by

Browse Source 
Alexander Friedman.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@21722 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2005-05-06 05:51:46 +00:00
parent 2bff524501
commit ddb6db4fa1
5 changed files with 34 additions and 7 deletions
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24
lib/AsmParser/llvmAsmParser.y
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@@ -803,6 +803,7 @@ Module *llvm::RunVMAsmParser(const std::string &Filename, FILE *F) {
%type <JumpTable> JumpTable
%type <BoolVal> GlobalType // GLOBAL or CONSTANT?
%type <BoolVal> OptVolatile // 'volatile' or not
%type <BoolVal> OptTailCall // TAIL CALL or plain CALL.
%type <Linkage> OptLinkage
%type <Endianness> BigOrLittle
@@ -837,7 +838,7 @@ Module *llvm::RunVMAsmParser(const std::string &Filename, FILE *F) {
%token DECLARE GLOBAL CONSTANT VOLATILE
%token TO DOTDOTDOT NULL_TOK UNDEF CONST INTERNAL LINKONCE WEAK APPENDING
%token OPAQUE NOT EXTERNAL TARGET TRIPLE ENDIAN POINTERSIZE LITTLE BIG
%token DEPLIBS
%token DEPLIBS CALL TAIL
// Basic Block Terminating Operators
%token <TermOpVal> RET BR SWITCH INVOKE UNWIND UNREACHABLE
@@ -852,7 +853,8 @@ Module *llvm::RunVMAsmParser(const std::string &Filename, FILE *F) {
// Other Operators
%type <OtherOpVal> ShiftOps
%token <OtherOpVal> PHI_TOK CALL CAST SELECT SHL SHR VAARG VANEXT
%token <OtherOpVal> PHI_TOK CAST SELECT SHL SHR VAARG VANEXT
%start Module
%%
@@ -883,6 +885,9 @@ SetCondOps : SETLE | SETGE | SETLT | SETGT | SETEQ | SETNE;
ShiftOps : SHL | SHR;
// These are some types that allow classification if we only want a particular
// thing... for example, only a signed, unsigned, or integral type.
SIntType : LONG | INT | SHORT | SBYTE;
@@ -1858,6 +1863,15 @@ ValueRefList : ResolvedVal { // Used for call statements, and memory insts...
// ValueRefListE - Just like ValueRefList, except that it may also be empty!
ValueRefListE : ValueRefList | /*empty*/ { $$ = 0; };
OptTailCall : TAIL CALL {
$$ = true;
}
| CALL {
$$ = false;
};
InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
if (!(*$2)->isInteger() && !(*$2)->isFloatingPoint() &&
!isa<PackedType>((*$2).get()))
@@ -1944,8 +1958,8 @@ InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
$2->pop_front();
}
delete $2; // Free the list...
}
| CALL TypesV ValueRef '(' ValueRefListE ')' {
}
| OptTailCall TypesV ValueRef '(' ValueRefListE ')' {
const PointerType *PFTy;
const FunctionType *Ty;
@@ -1997,6 +2011,7 @@ InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
$$ = new CallInst(V, *$5);
}
cast<CallInst>($$)->setTailCall($1);
delete $2;
delete $5;
}
@@ -2020,6 +2035,7 @@ OptVolatile : VOLATILE {
};
MemoryInst : MALLOC Types {
$$ = new MallocInst(*$2);
delete $2;