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46 lines
1.1 KiB
Plaintext
46 lines
1.1 KiB
Plaintext
union UnionA
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{
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int a;
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}
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union UnionB
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{
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struct b
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{
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int a;
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}
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int c;
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double d;
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}
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func void test()
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{
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UnionA a = {};
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UnionA a2;
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UnionB b = {};
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UnionB b2;
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UnionB b3 = { .b = {} };
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UnionB b4 = { .b.a = 23, .c = 4, .d = 0.4, .b = {} };
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}
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// #expect: union_codegen_empty.ll
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%a = alloca %UnionA, align 4
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%a2 = alloca %UnionA, align 4
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%b = alloca %UnionB, align 8
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%b2 = alloca %UnionB, align 8
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%b3 = alloca %UnionB, align 8
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%b4 = alloca %UnionB, align 8
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%0 = bitcast %UnionA* %a to i8*
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call void @llvm.memset.p0i8.i64(i8* align 4 %0, i8 0, i64 4, i1 false)
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%1 = bitcast %UnionA* %a2 to i8*
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call void @llvm.memset.p0i8.i64(i8* align 4 %1, i8 0, i64 4, i1 false)
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%2 = bitcast %UnionB* %b to i8*
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call void @llvm.memset.p0i8.i64(i8* align 8 %2, i8 0, i64 8, i1 false)
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%3 = bitcast %UnionB* %b2 to i8*
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call void @llvm.memset.p0i8.i64(i8* align 8 %3, i8 0, i64 8, i1 false)
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%4 = bitcast %UnionB* %b3 to i8*
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call void @llvm.memset.p0i8.i64(i8* align 8 %4, i8 0, i64 8, i1 false)
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%5 = bitcast %UnionB* %b4 to i8*
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call void @llvm.memset.p0i8.i64(i8* align 8 %5, i8 0, i64 8, i1 false)
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