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-rw-r--r--lib/AsmParser/llvmAsmParser.y158
1 files changed, 2 insertions, 156 deletions
diff --git a/lib/AsmParser/llvmAsmParser.y b/lib/AsmParser/llvmAsmParser.y
index 6606b3a103..51fe7c9cc5 100644
--- a/lib/AsmParser/llvmAsmParser.y
+++ b/lib/AsmParser/llvmAsmParser.y
@@ -64,9 +64,7 @@ static Module *ParserResult;
#define YYERROR_VERBOSE 1
-static bool ObsoleteVarArgs;
static bool NewVarArgs;
-static BasicBlock *CurBB;
static GlobalVariable *CurGV;
@@ -811,7 +809,6 @@ static PATypeHolder HandleUpRefs(const Type *ty) {
static Module* RunParser(Module * M) {
llvmAsmlineno = 1; // Reset the current line number...
- ObsoleteVarArgs = false;
NewVarArgs = false;
CurModule.CurrentModule = M;
@@ -830,113 +827,6 @@ static Module* RunParser(Module * M) {
Module *Result = ParserResult;
ParserResult = 0;
- //Not all functions use vaarg, so make a second check for ObsoleteVarArgs
- {
- Function* F;
- if ((F = Result->getNamedFunction("llvm.va_start"))
- && F->getFunctionType()->getNumParams() == 0)
- ObsoleteVarArgs = true;
- if((F = Result->getNamedFunction("llvm.va_copy"))
- && F->getFunctionType()->getNumParams() == 1)
- ObsoleteVarArgs = true;
- }
-
- if (ObsoleteVarArgs && NewVarArgs) {
- GenerateError(
- "This file is corrupt: it uses both new and old style varargs");
- return 0;
- }
-
- if(ObsoleteVarArgs) {
- if(Function* F = Result->getNamedFunction("llvm.va_start")) {
- if (F->arg_size() != 0) {
- GenerateError("Obsolete va_start takes 0 argument!");
- return 0;
- }
-
- //foo = va_start()
- // ->
- //bar = alloca typeof(foo)
- //va_start(bar)
- //foo = load bar
-
- const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
- const Type* ArgTy = F->getFunctionType()->getReturnType();
- const Type* ArgTyPtr = PointerType::get(ArgTy);
- Function* NF = Result->getOrInsertFunction("llvm.va_start",
- RetTy, ArgTyPtr, (Type *)0);
-
- while (!F->use_empty()) {
- CallInst* CI = cast<CallInst>(F->use_back());
- AllocaInst* bar = new AllocaInst(ArgTy, 0, "vastart.fix.1", CI);
- new CallInst(NF, bar, "", CI);
- Value* foo = new LoadInst(bar, "vastart.fix.2", CI);
- CI->replaceAllUsesWith(foo);
- CI->getParent()->getInstList().erase(CI);
- }
- Result->getFunctionList().erase(F);
- }
-
- if(Function* F = Result->getNamedFunction("llvm.va_end")) {
- if(F->arg_size() != 1) {
- GenerateError("Obsolete va_end takes 1 argument!");
- return 0;
- }
-
- //vaend foo
- // ->
- //bar = alloca 1 of typeof(foo)
- //vaend bar
- const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
- const Type* ArgTy = F->getFunctionType()->getParamType(0);
- const Type* ArgTyPtr = PointerType::get(ArgTy);
- Function* NF = Result->getOrInsertFunction("llvm.va_end",
- RetTy, ArgTyPtr, (Type *)0);
-
- while (!F->use_empty()) {
- CallInst* CI = cast<CallInst>(F->use_back());
- AllocaInst* bar = new AllocaInst(ArgTy, 0, "vaend.fix.1", CI);
- new StoreInst(CI->getOperand(1), bar, CI);
- new CallInst(NF, bar, "", CI);
- CI->getParent()->getInstList().erase(CI);
- }
- Result->getFunctionList().erase(F);
- }
-
- if(Function* F = Result->getNamedFunction("llvm.va_copy")) {
- if(F->arg_size() != 1) {
- GenerateError("Obsolete va_copy takes 1 argument!");
- return 0;
- }
- //foo = vacopy(bar)
- // ->
- //a = alloca 1 of typeof(foo)
- //b = alloca 1 of typeof(foo)
- //store bar -> b
- //vacopy(a, b)
- //foo = load a
-
- const Type* RetTy = Type::getPrimitiveType(Type::VoidTyID);
- const Type* ArgTy = F->getFunctionType()->getReturnType();
- const Type* ArgTyPtr = PointerType::get(ArgTy);
- Function* NF = Result->getOrInsertFunction("llvm.va_copy",
- RetTy, ArgTyPtr, ArgTyPtr,
- (Type *)0);
-
- while (!F->use_empty()) {
- CallInst* CI = cast<CallInst>(F->use_back());
- AllocaInst* a = new AllocaInst(ArgTy, 0, "vacopy.fix.1", CI);
- AllocaInst* b = new AllocaInst(ArgTy, 0, "vacopy.fix.2", CI);
- new StoreInst(CI->getOperand(1), b, CI);
- new CallInst(NF, a, b, "", CI);
- Value* foo = new LoadInst(a, "vacopy.fix.3", CI);
- CI->replaceAllUsesWith(foo);
- CI->getParent()->getInstList().erase(CI);
- }
- Result->getFunctionList().erase(F);
- }
- }
-
return Result;
}
@@ -1092,7 +982,6 @@ Module *llvm::RunVMAsmParser(const char * AsmString, Module * M) {
%type <OtherOpVal> ShiftOps
%token <OtherOpVal> PHI_TOK SELECT SHL LSHR ASHR VAARG
%token <OtherOpVal> EXTRACTELEMENT INSERTELEMENT SHUFFLEVECTOR
-%token VAARG_old VANEXT_old //OBSOLETE
%start Module
@@ -2217,7 +2106,7 @@ InstructionList : InstructionList Inst {
CHECK_FOR_ERROR
}
| /* empty */ {
- $$ = CurBB = getBBVal(ValID::create((int)CurFun.NextBBNum++), true);
+ $$ = getBBVal(ValID::create((int)CurFun.NextBBNum++), true);
CHECK_FOR_ERROR
// Make sure to move the basic block to the correct location in the
@@ -2229,7 +2118,7 @@ InstructionList : InstructionList Inst {
CHECK_FOR_ERROR
}
| LABELSTR {
- $$ = CurBB = getBBVal(ValID::create($1), true);
+ $$ = getBBVal(ValID::create($1), true);
CHECK_FOR_ERROR
// Make sure to move the basic block to the correct location in the
@@ -2549,49 +2438,6 @@ InstVal : ArithmeticOps Types ValueRef ',' ValueRef {
delete $4;
CHECK_FOR_ERROR
}
- | VAARG_old ResolvedVal ',' Types {
- ObsoleteVarArgs = true;
- const Type* ArgTy = $2->getType();
- Function* NF = CurModule.CurrentModule->
- getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0);
-
- //b = vaarg a, t ->
- //foo = alloca 1 of t
- //bar = vacopy a
- //store bar -> foo
- //b = vaarg foo, t
- AllocaInst* foo = new AllocaInst(ArgTy, 0, "vaarg.fix");
- CurBB->getInstList().push_back(foo);
- CallInst* bar = new CallInst(NF, $2);
- CurBB->getInstList().push_back(bar);
- CurBB->getInstList().push_back(new StoreInst(bar, foo));
- $$ = new VAArgInst(foo, *$4);
- delete $4;
- CHECK_FOR_ERROR
- }
- | VANEXT_old ResolvedVal ',' Types {
- ObsoleteVarArgs = true;
- const Type* ArgTy = $2->getType();
- Function* NF = CurModule.CurrentModule->
- getOrInsertFunction("llvm.va_copy", ArgTy, ArgTy, (Type *)0);
-
- //b = vanext a, t ->
- //foo = alloca 1 of t
- //bar = vacopy a
- //store bar -> foo
- //tmp = vaarg foo, t
- //b = load foo
- AllocaInst* foo = new AllocaInst(ArgTy, 0, "vanext.fix");
- CurBB->getInstList().push_back(foo);
- CallInst* bar = new CallInst(NF, $2);
- CurBB->getInstList().push_back(bar);
- CurBB->getInstList().push_back(new StoreInst(bar, foo));
- Instruction* tmp = new VAArgInst(foo, *$4);
- CurBB->getInstList().push_back(tmp);
- $$ = new LoadInst(foo);
- delete $4;
- CHECK_FOR_ERROR
- }
| EXTRACTELEMENT ResolvedVal ',' ResolvedVal {
if (!ExtractElementInst::isValidOperands($2, $4))
GEN_ERROR("Invalid extractelement operands!");
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-07 09:11:37 +0000