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c3c/test/test_suite/struct/nested_struct_union_init.c3t
2025-02-18 18:53:30 +01:00

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// #target: macos-x64
module foob;
import libc;
struct Matrix2x2
{
union
{
float[4] m;
struct
{
float m00, m01, m10, m11;
}
}
}
struct Matrix2x2_b
{
union
{
struct
{
float m00, m01, m10, m11;
}
float[4] m;
}
}
struct Matrix4x4
{
union
{
struct
{
float m00, m01, m02, m03;
float m10, m11, m12, m13;
float m20, m21, m22, m23;
float m30, m31, m32, m33;
}
float[16] m;
}
}
struct Matrix3x3
{
union
{
struct
{
float m00, m01, m02, m10, m11, m12, m20, m21, m22;
}
float[9] m;
}
}
fn void main()
{
Matrix3x3 x = { 1, 2, 3, 4, 5, 6, 7,8 ,9};
Matrix2x2 m = { (float[4]) { 1, 2, 3, 4 } };
Matrix2x2_b m2 = { 1, 2, 3, 4 };
libc::printf("%f %f %f %f\n", x.m00, x.m[1], x.m10, x.m[3]);
}
/* #expect: foob.ll
%Matrix2x2 = type { %.anon.1 }
%.anon.1 = type { [4 x float] }
%Matrix2x2_b = type { %.anon.2 }
%.anon.2 = type { %.anon.3 }
%.anon.3 = type { float, float, float, float }
%Matrix3x3 = type { %.anon }
%.anon = type { %.anon.0 }
%.anon.0 = type { float, float, float, float, float, float, float, float, float }
define void @foob.main() #0 {
entry:
%x = alloca %Matrix3x3, align 4
%m = alloca %Matrix2x2, align 4
%m2 = alloca %Matrix2x2_b, align 4
store float 1.000000e+00, ptr %x, align 4
%ptradd = getelementptr inbounds i8, ptr %x, i64 4
store float 2.000000e+00, ptr %ptradd, align 4
%ptradd1 = getelementptr inbounds i8, ptr %x, i64 8
store float 3.000000e+00, ptr %ptradd1, align 4
%ptradd2 = getelementptr inbounds i8, ptr %x, i64 12
store float 4.000000e+00, ptr %ptradd2, align 4
%ptradd3 = getelementptr inbounds i8, ptr %x, i64 16
store float 5.000000e+00, ptr %ptradd3, align 4
%ptradd4 = getelementptr inbounds i8, ptr %x, i64 20
store float 6.000000e+00, ptr %ptradd4, align 4
%ptradd5 = getelementptr inbounds i8, ptr %x, i64 24
store float 7.000000e+00, ptr %ptradd5, align 4
%ptradd6 = getelementptr inbounds i8, ptr %x, i64 28
store float 8.000000e+00, ptr %ptradd6, align 4
%ptradd7 = getelementptr inbounds i8, ptr %x, i64 32
store float 9.000000e+00, ptr %ptradd7, align 4
call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m, ptr align 4 @.__const, i32 16, i1 false)
call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m2, ptr align 4 @.__const.16, i32 16, i1 false)
%0 = load float, ptr %x, align 4
%fpfpext = fpext float %0 to double
%ptradd8 = getelementptr inbounds i8, ptr %x, i64 4
%1 = load float, ptr %ptradd8, align 4
%fpfpext9 = fpext float %1 to double
%ptradd10 = getelementptr inbounds i8, ptr %x, i64 12
%2 = load float, ptr %ptradd10, align 4
%fpfpext11 = fpext float %2 to double
%ptradd12 = getelementptr inbounds i8, ptr %x, i64 12
%3 = load float, ptr %ptradd12, align 4
%fpfpext13 = fpext float %3 to double
%4 = call i32 (ptr, ...) @printf(ptr @.str, double %fpfpext, double %fpfpext9, double %fpfpext11, double %fpfpext13)
ret void
}