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89 lines
3.5 KiB
C
89 lines
3.5 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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@"ct$foo_$anon" = linkonce constant %.introspect { i8 10, i64 16, i64 0, i64 4, [0 x i64] zeroinitializer }, align 8
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@"ct$foo_$anon.3" = linkonce constant %.introspect { i8 11, i64 16, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
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@"ct$foo_Matrix2x2" = linkonce constant %.introspect { i8 10, i64 16, i64 0, i64 1, [0 x i64] zeroinitializer }, align 8
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@"ct$foo_$anon.6" = linkonce constant %.introspect { i8 10, i64 16, i64 0, i64 4, [0 x i64] zeroinitializer }, align 8
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@"ct$foo_$anon.7" = linkonce constant %.introspect { i8 11, i64 16, i64 0, i64 2, [0 x i64] zeroinitializer }, align 8
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@"ct$foo_Matrix2x2_b" = linkonce constant %.introspect { i8 10, i64 16, i64 0, i64 1, [0 x i64] zeroinitializer }, 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.8 = 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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%0 = bitcast %Matrix2x2* %m to i8*
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %0, i8* align 4 bitcast (%Matrix2x2* @.__const to i8*), i32 16, i1 false)
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%1 = bitcast %Matrix2x2_b* %m2 to i8*
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %1, i8* align 4 bitcast (%Matrix2x2_b* @.__const.8 to i8*), i32 16, i1 false)
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%2 = getelementptr inbounds %Matrix2x2, %Matrix2x2* %m, i32 0, i32 0
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%3 = bitcast %.anon* %2 to %.anon.0*
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%4 = getelementptr inbounds %.anon.0, %.anon.0* %3, i32 0, i32 0
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%5 = load float, float* %4, align 4
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%fpfpext = fpext float %5 to double
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%6 = getelementptr inbounds %Matrix2x2, %Matrix2x2* %m, i32 0, i32 0
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%7 = bitcast %.anon* %6 to [4 x float]*
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%8 = getelementptr inbounds [4 x float], [4 x float]* %7, i64 0, i64 1
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%9 = load float, float* %8, align 4
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%fpfpext1 = fpext float %9 to double
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%10 = getelementptr inbounds %Matrix2x2, %Matrix2x2* %m, i32 0, i32 0
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%11 = bitcast %.anon* %10 to %.anon.0*
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%12 = getelementptr inbounds %.anon.0, %.anon.0* %11, i32 0, i32 2
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%13 = load float, float* %12, align 4
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%fpfpext2 = fpext float %13 to double
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%14 = getelementptr inbounds %Matrix2x2, %Matrix2x2* %m, i32 0, i32 0
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%15 = bitcast %.anon* %14 to [4 x float]*
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%16 = getelementptr inbounds [4 x float], [4 x float]* %15, i64 0, i64 3
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%17 = load float, float* %16, align 4
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%fpfpext3 = fpext float %17 to double
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%18 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([13 x i8], [13 x i8]* @.str, i32 0, i32 0), double %fpfpext, double %fpfpext1, double %fpfpext2, double %fpfpext3)
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ret void
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}
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; Function Attrs: nounwind
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define i32 @main(i32 %0, i8** %1) #0 {
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entry:
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call void @foo_main()
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ret i32 0
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}
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