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75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
// #target: macos-x64
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module foo;
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import libc;
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struct Matrix2x2
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{
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union
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{
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struct {
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float m00, m01, m10, m11;
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}
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float[4] m;
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}
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}
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struct Matrix2x2_b
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{
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union
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{
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float[4] m;
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struct {
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float m00, m01, m10, m11;
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}
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}
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}
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fn void main()
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{
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Matrix2x2 m = { 1, 2, 3, 4 };
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Matrix2x2_b m2 = { { 1, 2, 3, 4 } };
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libc::printf("%f %f %f %f\n", m.m00, m.m[1], m.m10, m.m[3]);
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}
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/* #expect: foo.ll
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%Matrix2x2 = type { %anon }
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%anon = type { %anon.0 }
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%anon.0 = type { float, float, float, float }
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%Matrix2x2_b = type { %anon.1 }
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%anon.1 = type { [4 x float] }
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@.typeid.foo.anon = linkonce constant { i8, i64 } { i8 10, i64 4 }, align 8
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@.typeid.foo.anon.1 = linkonce constant { i8, i64 } { i8 11, i64 2 }, align 8
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@.typeid.foo.Matrix2x2 = linkonce constant { i8, i64 } { i8 10, i64 1 }, align 8
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@.typeid.foo.anon.2 = linkonce constant { i8, i64 } { i8 10, i64 4 }, align 8
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@.typeid.foo.anon.3 = linkonce constant { i8, i64 } { i8 11, i64 2 }, align 8
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@.typeid.foo.Matrix2x2_b = linkonce constant { i8, i64 } { i8 10, i64 1 }, align 8
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@.__const = private unnamed_addr constant %Matrix2x2 { %anon { %anon.0 { float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00 } } }, align 4
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@.__const.4 = private unnamed_addr constant %Matrix2x2_b { %anon.1 { [4 x float] [float 1.000000e+00, float 2.000000e+00, float 3.000000e+00, float 4.000000e+00] } }, align 4
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@.str = private unnamed_addr constant [13 x i8] c"%f %f %f %f\0A\00", align 1
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; Function Attrs: nounwind
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define void @foo.main() #0 {
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entry:
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%m = alloca %Matrix2x2, align 4
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%m2 = alloca %Matrix2x2_b, align 4
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call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m, ptr align 4 @.__const, i32 16, i1 false)
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call void @llvm.memcpy.p0.p0.i32(ptr align 4 %m2, ptr align 4 @.__const.4, i32 16, i1 false)
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%0 = getelementptr inbounds %Matrix2x2, ptr %m, i32 0, i32 0
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%1 = getelementptr inbounds %anon.0, ptr %0, i32 0, i32 0
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%2 = load float, ptr %1, align 4
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%fpfpext = fpext float %2 to double
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%3 = getelementptr inbounds %Matrix2x2, ptr %m, i32 0, i32 0
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%4 = getelementptr inbounds [4 x float], ptr %3, i64 0, i64 1
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%5 = load float, ptr %4, align 4
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%fpfpext1 = fpext float %5 to double
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%6 = getelementptr inbounds %Matrix2x2, ptr %m, i32 0, i32 0
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%7 = getelementptr inbounds %anon.0, ptr %6, i32 0, i32 2
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%8 = load float, ptr %7, align 4
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%fpfpext2 = fpext float %8 to double
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%9 = getelementptr inbounds %Matrix2x2, ptr %m, i32 0, i32 0
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%10 = getelementptr inbounds [4 x float], ptr %9, i64 0, i64 3
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%11 = load float, ptr %10, align 4
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%fpfpext3 = fpext float %11 to double
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%12 = call i32 (ptr, ...) @printf(ptr @.str, double %fpfpext, double %fpfpext1, double %fpfpext2, double %fpfpext3)
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ret void
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}
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