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84 lines
3.2 KiB
C
84 lines
3.2 KiB
C
// #target: macos-x64
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module foo;
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extern fn void printf(char*, ...);
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fn void main()
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{
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int[3] x;
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int[3]* y = &x;
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int* z = y;
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int[] sub = y;
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int[3] y1 = y[1];
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int z1 = z[1];
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int* xx = &x + 1;
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int[3]* yy = (int[3]*)(xx);
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int* zz = yy - 1;
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printf("%p = %p = %p, %p = %p\n", y, z, zz, &(*y)[1], xx);
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x[1] = 123;
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printf("%d = %d\n", x[1], z[1]);
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}
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/* #expect: foo.ll
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define void @foo_main() #0 {
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entry:
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%x = alloca [3 x i32], align 4
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%y = alloca [3 x i32]*, align 8
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%z = alloca i32*, align 8
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%sub = alloca %"int[]", align 8
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%y1 = alloca [3 x i32], align 4
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%z1 = alloca i32, align 4
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%xx = alloca i32*, align 8
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%yy = alloca [3 x i32]*, align 8
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%zz = alloca i32*, align 8
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%0 = getelementptr inbounds [3 x i32], [3 x i32]* %x, i64 0, i64 0
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store i32 0, i32* %0, align 4
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%1 = getelementptr inbounds [3 x i32], [3 x i32]* %x, i64 0, i64 1
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store i32 0, i32* %1, align 4
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%2 = getelementptr inbounds [3 x i32], [3 x i32]* %x, i64 0, i64 2
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store i32 0, i32* %2, align 4
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store [3 x i32]* %x, [3 x i32]** %y, align 8
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%3 = load [3 x i32]*, [3 x i32]** %y, align 8
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%ptrptr = bitcast [3 x i32]* %3 to i32*
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store i32* %ptrptr, i32** %z, align 8
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%4 = load [3 x i32]*, [3 x i32]** %y, align 8
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%5 = bitcast [3 x i32]* %4 to i32*
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%6 = insertvalue %"int[]" undef, i32* %5, 0
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%7 = insertvalue %"int[]" %6, i64 3, 1
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store %"int[]" %7, %"int[]"* %sub, align 8
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%8 = load [3 x i32]*, [3 x i32]** %y, align 8
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%ptroffset = getelementptr inbounds [3 x i32], [3 x i32]* %8, i64 1
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%9 = bitcast [3 x i32]* %y1 to i8*
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%10 = bitcast [3 x i32]* %ptroffset to i8*
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call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %9, i8* align 4 %10, i32 12, i1 false)
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%11 = load i32*, i32** %z, align 8
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%ptroffset1 = getelementptr inbounds i32, i32* %11, i64 1
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%12 = load i32, i32* %ptroffset1, align 4
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store i32 %12, i32* %z1, align 4
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%ptrptr2 = bitcast [3 x i32]* %x to i32*
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%ptroffset3 = getelementptr i32, i32* %ptrptr2, i64 1
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store i32* %ptroffset3, i32** %xx, align 8
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%13 = load i32*, i32** %xx, align 8
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%ptrptr4 = bitcast i32* %13 to [3 x i32]*
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store [3 x i32]* %ptrptr4, [3 x i32]** %yy, align 8
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%14 = load [3 x i32]*, [3 x i32]** %yy, align 8
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%ptrptr5 = bitcast [3 x i32]* %14 to i32*
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%ptroffset6 = getelementptr i32, i32* %ptrptr5, i64 -1
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store i32* %ptroffset6, i32** %zz, align 8
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%15 = load [3 x i32]*, [3 x i32]** %y, align 8
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%16 = load i32*, i32** %z, align 8
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%17 = load i32*, i32** %zz, align 8
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%18 = load [3 x i32]*, [3 x i32]** %y, align 8
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%19 = getelementptr inbounds [3 x i32], [3 x i32]* %18, i64 0, i64 1
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%20 = load i32*, i32** %xx, align 8
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call void (i8*, ...) @printf(i8* getelementptr inbounds ([23 x i8], [23 x i8]* @.str, i32 0, i32 0), [3 x i32]* %15, i32* %16, i32* %17, i32* %19, i32* %20)
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%21 = getelementptr inbounds [3 x i32], [3 x i32]* %x, i64 0, i64 1
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store i32 123, i32* %21, align 4
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%22 = getelementptr inbounds [3 x i32], [3 x i32]* %x, i64 0, i64 1
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%23 = load i32, i32* %22, align 4
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%24 = load i32*, i32** %z, align 8
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%ptroffset7 = getelementptr inbounds i32, i32* %24, i64 1
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%25 = load i32, i32* %ptroffset7, align 4
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call void (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i32 0, i32 0), i32 %23, i32 %25)
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ret void
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}
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