The ARM C++ ABI is sufficiently different from the Itanium C++ ABI that
it deserves its own enumerator. Obviously the implementations should
closely follow the Itanium ABI except in cases of divergence.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@111749 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGCXXABI.h b/lib/CodeGen/CGCXXABI.h
index 0cebcb1..7df63d3 100644
--- a/lib/CodeGen/CGCXXABI.h
+++ b/lib/CodeGen/CGCXXABI.h
@@ -30,6 +30,7 @@
};
/// Creates an instance of a C++ ABI class.
+CGCXXABI *CreateARMCXXABI(CodeGenModule &CGM);
CGCXXABI *CreateItaniumCXXABI(CodeGenModule &CGM);
CGCXXABI *CreateMicrosoftCXXABI(CodeGenModule &CGM);
}
diff --git a/lib/CodeGen/CodeGenModule.cpp b/lib/CodeGen/CodeGenModule.cpp
index c0df55b..2d9d573 100644
--- a/lib/CodeGen/CodeGenModule.cpp
+++ b/lib/CodeGen/CodeGenModule.cpp
@@ -91,11 +91,15 @@
void CodeGenModule::createCXXABI() {
switch (Context.Target.getCXXABI()) {
- default:
+ case CXXABI_ARM:
+ ABI = CreateARMCXXABI(*this);
+ break;
+ case CXXABI_Itanium:
ABI = CreateItaniumCXXABI(*this);
break;
case CXXABI_Microsoft:
ABI = CreateMicrosoftCXXABI(*this);
+ break;
}
}
diff --git a/lib/CodeGen/ItaniumCXXABI.cpp b/lib/CodeGen/ItaniumCXXABI.cpp
index a613769..bd396d2 100644
--- a/lib/CodeGen/ItaniumCXXABI.cpp
+++ b/lib/CodeGen/ItaniumCXXABI.cpp
@@ -12,6 +12,10 @@
// documented at:
// http://www.codesourcery.com/public/cxx-abi/abi.html
// http://www.codesourcery.com/public/cxx-abi/abi-eh.html
+//
+// It also supports the closely-related ARM ABI, documented at:
+// http://infocenter.arm.com/help/topic/com.arm.doc.ihi0041c/IHI0041C_cppabi.pdf
+//
//===----------------------------------------------------------------------===//
#include "CGCXXABI.h"
@@ -31,9 +35,18 @@
return MangleCtx;
}
};
+
+class ARMCXXABI : public ItaniumCXXABI {
+public:
+ ARMCXXABI(CodeGen::CodeGenModule &CGM) : ItaniumCXXABI(CGM) {}
+};
}
CodeGen::CGCXXABI *CodeGen::CreateItaniumCXXABI(CodeGenModule &CGM) {
return new ItaniumCXXABI(CGM);
}
+CodeGen::CGCXXABI *CodeGen::CreateARMCXXABI(CodeGenModule &CGM) {
+ return new ARMCXXABI(CGM);
+}
+