# HG changeset patch
# User Tomas Lindquist Olsen <tomas.l.olsen@gmail.com>
# Date 1225560310 -3600
# Node ID 46d0755451a4bf19244511167f43ddd949d71101
# Parent  693d681c846cf555426149e813ac233cc61be90c
Added DtoRawVarDeclaration routine to handle special variables in some statements.

diff -r 693d681c846c -r 46d0755451a4 gen/llvmhelpers.cpp
--- a/gen/llvmhelpers.cpp	Sat Nov 01 17:56:25 2008 +0100
+++ b/gen/llvmhelpers.cpp	Sat Nov 01 18:25:10 2008 +0100
@@ -1320,6 +1320,46 @@
     return NULL;
 }
 
+// does pretty much the same as DtoDeclarationExp, except it doesn't initialize, and only handles var declarations
+LLValue* DtoRawVarDeclaration(VarDeclaration* var)
+{
+    // we don't handle globals with this one
+    assert(!var->isDataseg());
+
+    // we don't handle aliases either
+    assert(!var->aliassym);
+
+    // referenced by nested function?
+    if (var->nestedref)
+    {
+        assert(var->ir.irLocal);
+        assert(!var->ir.irLocal->value);
+
+        // alloca
+        var->ir.irLocal->value = DtoAlloca(DtoType(var->type), var->toChars());
+
+        // store the address into the nested vars array
+        assert(var->ir.irLocal->nestedIndex >= 0);
+        LLValue* gep = DtoGEPi(gIR->func()->decl->ir.irFunc->nestedVar, 0, var->ir.irLocal->nestedIndex);
+        assert(isaPointer(var->ir.irLocal->value));
+        LLValue* val = DtoBitCast(var->ir.irLocal->value, getVoidPtrType());
+        DtoStore(val, gep);
+    }
+    // normal local variable
+    else
+    {
+        assert(!var->ir.isSet());
+        var->ir.irLocal = new IrLocal(var);
+        var->ir.irLocal->value = DtoAlloca(DtoType(var->type), var->toChars());
+    }
+
+    // add debug info
+    if (global.params.symdebug)
+        DtoDwarfLocalVariable(var->ir.irLocal->value, var);
+
+    // return the alloca
+    return var->ir.irLocal->value;
+}
 
 /****************************************************************************************/
 /*////////////////////////////////////////////////////////////////////////////////////////
diff -r 693d681c846c -r 46d0755451a4 gen/llvmhelpers.h
--- a/gen/llvmhelpers.h	Sat Nov 01 17:56:25 2008 +0100
+++ b/gen/llvmhelpers.h	Sat Nov 01 18:25:10 2008 +0100
@@ -83,6 +83,7 @@
 
 // declaration inside a declarationexp
 DValue* DtoDeclarationExp(Dsymbol* declaration);
+LLValue* DtoRawVarDeclaration(VarDeclaration* var);
 
 // initializer helpers
 LLConstant* DtoConstInitializer(Type* type, Initializer* init);
diff -r 693d681c846c -r 46d0755451a4 gen/statements.cpp
--- a/gen/statements.cpp	Sat Nov 01 17:56:25 2008 +0100
+++ b/gen/statements.cpp	Sat Nov 01 18:25:10 2008 +0100
@@ -154,7 +154,7 @@
         DtoDwarfStopPoint(loc.linnum);
 
     if (match)
-        DtoDeclarationExp(match);
+        DtoRawVarDeclaration(match);
 
     DValue* cond_e = condition->toElem(p);
     LLValue* cond_val = cond_e->getRVal();
@@ -926,17 +926,14 @@
     const LLType* keytype = key ? DtoType(key->type) : DtoSize_t();
     LLValue* keyvar;
     if (key)
-    {
-        DtoDeclarationExp(key);
-        keyvar = key->ir.irLocal->value;
-    }
+        keyvar = DtoRawVarDeclaration(key);
     else
         keyvar = DtoAlloca(keytype, "foreachkey");
     LLValue* zerokey = llvm::ConstantInt::get(keytype,0,false);
 
     // value
     Logger::println("value = %s", value->toPrettyChars());
-    DtoDeclarationExp(value);
+    DtoRawVarDeclaration(value);
     const LLType* valtype = DtoType(value->type);
     LLValue* valvar = NULL;
     if (!value->isRef() && !value->isOut())
@@ -1149,30 +1146,8 @@
     assert(body);
 
     DValue* e = exp->toElem(p);
-
-    // DtoDeclarationExp(wthis); or preferably equivalent without initialization...
-    if (wthis->ir.isSet())
-    {
-        assert(wthis->nestedref);
-        assert(wthis->ir.irLocal);
-        assert(!wthis->ir.irLocal->value);
-        wthis->ir.irLocal->value = DtoAlloca(DtoType(wthis->type), wthis->toChars());
-
-        // store the address into the nested vars array
-        assert(wthis->ir.irLocal->nestedIndex >= 0);
-        LLValue* gep = DtoGEPi(gIR->func()->decl->ir.irFunc->nestedVar, 0, wthis->ir.irLocal->nestedIndex);
-        assert(isaPointer(wthis->ir.irLocal->value));
-        LLValue* val = DtoBitCast(wthis->ir.irLocal->value, getVoidPtrType());
-        DtoStore(val, gep);
-    }
-    else
-    {
-        assert(!wthis->nestedref);
-        wthis->ir.irLocal = new IrLocal(wthis);
-        wthis->ir.irLocal->value = DtoAlloca(DtoType(wthis->type), wthis->toChars());
-    }
-
-    DtoStore(e->getRVal(), wthis->ir.irLocal->value);
+    LLValue* mem = DtoRawVarDeclaration(wthis);
+    DtoStore(e->getRVal(), mem);
 
     body->toIR(p);
 }