forked from OSchip/llvm-project
90 lines
1.7 KiB
C
90 lines
1.7 KiB
C
// RUN: %clang_cc1 -triple i386-unknown-unknown %s -emit-llvm -o - | FileCheck %s
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struct foo {
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void *a;
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int b;
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};
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// CHECK: @u = global %union.anon zeroinitializer
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union { int i; float f; } u = { };
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// CHECK: @u2 = global %1 { i32 0, [4 x i8] undef }
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union { int i; double f; } u2 = { };
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// CHECK: @u3 = global %2 zeroinitializer
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union { double f; int i; } u3 = { };
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// CHECK: @b = global [2 x i32] [i32 0, i32 22]
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int b[2] = {
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[1] = 22
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};
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// PR6955
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struct ds {
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struct {
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struct {
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short a;
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};
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short b;
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struct {
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short c;
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};
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};
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};
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// Traditional C anonymous member init
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struct ds ds0 = { { { .a = 0 } } };
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// C1X lookup-based anonymous member init cases
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struct ds ds1 = { { .a = 1 } };
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struct ds ds2 = { { .b = 1 } };
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struct ds ds3 = { .a = 0 };
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// CHECK: @ds4 = global %3 { %4 { %struct.anon zeroinitializer, i16 0, %struct.anon { i16 1 } } }
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struct ds ds4 = { .c = 1 };
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struct ds ds5 = { { { .a = 0 } }, .b = 1 };
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struct ds ds6 = { { .a = 0, .b = 1 } };
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// CHECK: @ds7 = global %3 { %4 { %struct.anon { i16 2 }, i16 3, %struct.anon zeroinitializer } }
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struct ds ds7 = {
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{ {
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.a = 1
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} },
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.a = 2,
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.b = 3
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};
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void test1(int argc, char **argv)
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{
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// CHECK: internal global %struct.foo { i8* null, i32 1024 }
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static struct foo foo = {
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.b = 1024,
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};
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// CHECK: bitcast %union.anon* %u2
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// CHECK: call void @llvm.memset
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union { int i; float f; } u2 = { };
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// CHECK-NOT: call void @llvm.memset
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union { int i; float f; } u3;
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// CHECK: ret void
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}
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// PR7151
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struct S {
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int nkeys;
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int *keys;
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union {
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void *data;
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};
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};
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void test2() {
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struct S *btkr;
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*btkr = (struct S) {
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.keys = 0,
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{ .data = 0 },
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};
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}
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