29 lines
1023 B
C++
29 lines
1023 B
C++
// RUN: %clang_cc1 -Wno-error=non-pod-varargs -triple i686-pc-win32 -fms-compatibility -emit-llvm -o - %s | FileCheck %s -check-prefix=X86 -check-prefix=CHECK
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// RUN: %clang_cc1 -Wno-error=non-pod-varargs -triple x86_64-pc-win32 -fms-compatibility -emit-llvm -o - %s | FileCheck %s -check-prefix=X64 -check-prefix=CHECK
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struct X {
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X();
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~X();
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int data;
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};
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void vararg(...);
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void test(X x) {
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// CHECK-LABEL: define void @"\01?test@@YAXUX@@@Z"
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// X86: %[[argmem:[^ ]*]] = alloca inalloca <{ %struct.X }>
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// X86: call void (<{ %struct.X }>*, ...) bitcast (void (...)* @"\01?vararg@@YAXZZ" to void (<{ %struct.X }>*, ...)*)(<{ %struct.X }>* inalloca %[[argmem]])
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// X64: alloca %struct.X
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// X64: %[[agg:[^ ]*]] = alloca %struct.X
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// X64: %[[valptr:[^ ]*]] = getelementptr inbounds %struct.X, %struct.X* %[[agg]], i32 0, i32 0
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// X64: %[[val:[^ ]*]] = load i32, i32* %[[valptr]]
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// X64: call void (...) @"\01?vararg@@YAXZZ"(i32 %[[val]])
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// CHECK-NOT: llvm.trap
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vararg(x);
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// CHECK: ret void
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}
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