From a0fb00f9837bd0d2e5948f16f6a6b82a7a628f51 Mon Sep 17 00:00:00 2001
From: dim <dim@FreeBSD.org>
Date: Sat, 26 Feb 2011 22:09:03 +0000
Subject: Vendor import of clang trunk r126547:
http://llvm.org/svn/llvm-project/cfe/trunk@126547
---
lib/CodeGen/CodeGenFunction.h | 50 ++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 49 insertions(+), 1 deletion(-)
(limited to 'lib/CodeGen/CodeGenFunction.h')
diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index 67ef414..be646fb 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -1555,7 +1555,55 @@ public:
/// EmitAutoVarDecl - Emit an auto variable declaration.
///
/// This function can be called with a null (unreachable) insert point.
- void EmitAutoVarDecl(const VarDecl &D, SpecialInitFn *SpecialInit = 0);
+ void EmitAutoVarDecl(const VarDecl &D);
+
+ class AutoVarEmission {
+ friend class CodeGenFunction;
+
+ const VarDecl *Variable;
+
+ /// The alignment of the variable.
+ CharUnits Alignment;
+
+ /// The address of the alloca. Null if the variable was emitted
+ /// as a global constant.
+ llvm::Value *Address;
+
+ llvm::Value *NRVOFlag;
+
+ /// True if the variable is a __block variable.
+ bool IsByRef;
+
+ /// True if the variable is of aggregate type and has a constant
+ /// initializer.
+ bool IsConstantAggregate;
+
+ struct Invalid {};
+ AutoVarEmission(Invalid) : Variable(0) {}
+
+ AutoVarEmission(const VarDecl &variable)
+ : Variable(&variable), Address(0), NRVOFlag(0),
+ IsByRef(false), IsConstantAggregate(false) {}
+
+ bool wasEmittedAsGlobal() const { return Address == 0; }
+
+ public:
+ static AutoVarEmission invalid() { return AutoVarEmission(Invalid()); }
+
+ /// Returns the address of the object within this declaration.
+ /// Note that this does not chase the forwarding pointer for
+ /// __block decls.
+ llvm::Value *getObjectAddress(CodeGenFunction &CGF) const {
+ if (!IsByRef) return Address;
+
+ return CGF.Builder.CreateStructGEP(Address,
+ CGF.getByRefValueLLVMField(Variable),
+ Variable->getNameAsString());
+ }
+ };
+ AutoVarEmission EmitAutoVarAlloca(const VarDecl &var);
+ void EmitAutoVarInit(const AutoVarEmission &emission);
+ void EmitAutoVarCleanups(const AutoVarEmission &emission);
void EmitStaticVarDecl(const VarDecl &D,
llvm::GlobalValue::LinkageTypes Linkage);
--
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