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This commit is contained in:
Christoffer Lerno
2022-12-15 23:36:52 +01:00
committed by Christoffer Lerno
parent 10219eccb2
commit 8008fb2c18
6 changed files with 69 additions and 68 deletions
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43
test/test_suite/pointers/array_pointer_decay.c3t
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@@ -8,14 +8,14 @@ fn void main()
int[3]* y = &x;
int* z = y;
int[] sub = y;
int y1 = y[1];
int[3] y1 = y[1];
int z1 = z[1];
int* xx = &x + 1;
int[3]* yy = (int[3]*)(xx);
int* zz = yy - 1;
printf("%p = %p = %p, %p = %p\n", y, z, zz, &y[1], xx);
printf("%p = %p = %p, %p = %p\n", y, z, zz, &(*y)[1], xx);
x[1] = 123;
printf("%d = %d\n", (&x)[1], y[1]);
printf("%d = %d\n", x[1], z[1]);
}
/* #expect: foo.ll
@@ -26,7 +26,7 @@ entry:
%y = alloca [3 x i32]*, align 8
%z = alloca i32*, align 8
%sub = alloca %"int[]", align 8
%y1 = alloca i32, align 4
%y1 = alloca [3 x i32], align 4
%z1 = alloca i32, align 4
%xx = alloca i32*, align 8
%yy = alloca [3 x i32]*, align 8
@@ -47,23 +47,24 @@ entry:
%7 = insertvalue %"int[]" %6, i64 3, 1
store %"int[]" %7, %"int[]"* %sub, align 8
%8 = load [3 x i32]*, [3 x i32]** %y, align 8
%9 = getelementptr inbounds [3 x i32], [3 x i32]* %8, i64 0, i64 1
%10 = load i32, i32* %9, align 4
store i32 %10, i32* %y1, align 4
%ptroffset = getelementptr inbounds [3 x i32], [3 x i32]* %8, i64 1
%9 = bitcast [3 x i32]* %y1 to i8*
%10 = bitcast [3 x i32]* %ptroffset to i8*
call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 4 %9, i8* align 4 %10, i32 12, i1 false)
%11 = load i32*, i32** %z, align 8
%ptroffset = getelementptr inbounds i32, i32* %11, i64 1
%12 = load i32, i32* %ptroffset, align 4
%ptroffset1 = getelementptr inbounds i32, i32* %11, i64 1
%12 = load i32, i32* %ptroffset1, align 4
store i32 %12, i32* %z1, align 4
%ptrptr1 = bitcast [3 x i32]* %x to i32*
%ptroffset2 = getelementptr i32, i32* %ptrptr1, i64 1
store i32* %ptroffset2, i32** %xx, align 8
%ptrptr2 = bitcast [3 x i32]* %x to i32*
%ptroffset3 = getelementptr i32, i32* %ptrptr2, i64 1
store i32* %ptroffset3, i32** %xx, align 8
%13 = load i32*, i32** %xx, align 8
%ptrptr3 = bitcast i32* %13 to [3 x i32]*
store [3 x i32]* %ptrptr3, [3 x i32]** %yy, align 8
%ptrptr4 = bitcast i32* %13 to [3 x i32]*
store [3 x i32]* %ptrptr4, [3 x i32]** %yy, align 8
%14 = load [3 x i32]*, [3 x i32]** %yy, align 8
%ptrptr4 = bitcast [3 x i32]* %14 to i32*
%ptroffset5 = getelementptr i32, i32* %ptrptr4, i64 -1
store i32* %ptroffset5, i32** %zz, align 8
%ptrptr5 = bitcast [3 x i32]* %14 to i32*
%ptroffset6 = getelementptr i32, i32* %ptrptr5, i64 -1
store i32* %ptroffset6, i32** %zz, align 8
%15 = load [3 x i32]*, [3 x i32]** %y, align 8
%16 = load i32*, i32** %z, align 8
%17 = load i32*, i32** %zz, align 8
@@ -75,9 +76,9 @@ entry:
store i32 123, i32* %21, align 4
%22 = getelementptr inbounds [3 x i32], [3 x i32]* %x, i64 0, i64 1
%23 = load i32, i32* %22, align 4
%24 = load [3 x i32]*, [3 x i32]** %y, align 8
%25 = getelementptr inbounds [3 x i32], [3 x i32]* %24, i64 0, i64 1
%26 = load i32, i32* %25, align 4
call void (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i32 0, i32 0), i32 %23, i32 %26)
%24 = load i32*, i32** %z, align 8
%ptroffset7 = getelementptr inbounds i32, i32* %24, i64 1
%25 = load i32, i32* %ptroffset7, align 4
call void (i8*, ...) @printf(i8* getelementptr inbounds ([9 x i8], [9 x i8]* @.str.1, i32 0, i32 0), i32 %23, i32 %25)
ret void
}