54 lines
1.7 KiB
Diff
54 lines
1.7 KiB
Diff
Pull in r199037 from upstream clang trunk (by Jakob Stokund Olesen):
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SPARC passes non-trivial C++ objects indirectly like everybody else.
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Introduced here: http://svnweb.freebsd.org/changeset/base/262262
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Index: tools/clang/lib/CodeGen/TargetInfo.cpp
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===================================================================
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--- tools/clang/lib/CodeGen/TargetInfo.cpp
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+++ tools/clang/lib/CodeGen/TargetInfo.cpp
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@@ -5349,6 +5349,11 @@ SparcV9ABIInfo::classifyType(QualType Ty, unsigned
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if (!isAggregateTypeForABI(Ty))
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return ABIArgInfo::getDirect();
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+ // If a C++ object has either a non-trivial copy constructor or a non-trivial
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+ // destructor, it is passed with an explicit indirect pointer / sret pointer.
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+ if (CGCXXABI::RecordArgABI RAA = getRecordArgABI(Ty, getCXXABI()))
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+ return ABIArgInfo::getIndirect(0, RAA == CGCXXABI::RAA_DirectInMemory);
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+
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// This is a small aggregate type that should be passed in registers.
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// Build a coercion type from the LLVM struct type.
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llvm::StructType *StrTy = dyn_cast<llvm::StructType>(CGT.ConvertType(Ty));
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Index: tools/clang/test/CodeGenCXX/sparcv9-abi.cpp
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===================================================================
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--- tools/clang/test/CodeGenCXX/sparcv9-abi.cpp
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+++ tools/clang/test/CodeGenCXX/sparcv9-abi.cpp
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@@ -0,0 +1,26 @@
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+// RUN: %clang_cc1 -triple sparcv9-unknown-unknown -emit-llvm %s -o - | FileCheck %s
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+
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+struct pod {
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+ int a, b;
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+};
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+
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+void f0();
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+void f1(struct pod);
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+
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+struct notpod {
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+ int a, b;
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+ ~notpod() { f0(); }
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+};
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+
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+void f2(struct notpod);
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+
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+// CHECK-LABEL: caller
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+// CHECK: call void @_Z2f13pod(i64
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+// CHECK: call void @_Z2f26notpod(%struct.notpod*
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+void caller()
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+{
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+ pod p1;
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+ notpod p2;
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+ f1(p1);
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+ f2(p2);
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+}
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