authorgravatar for git@vexu.euVeikka Tuominen <git@vexu.eu> 2022-03-21 15:05:21+02:00
committergravatar for git@vexu.euVeikka Tuominen <git@vexu.eu> 2022-03-21 15:05:21+02:00
log59668fbe802be744c200ea9fd38fda28f5f951c1
treee456aea2d79f989f048c642106fc33009aad2afd
parenta31fe0ff12270ba2f957c2a957941a23f2143ad5

stage2: add test for fixed issue

Closes #11157

1 files changed, 30 insertions(+), 20 deletions(-)

test/behavior/comptime_memory.zig+30-20
......@@ -5,10 +5,8 @@ const ptr_size = @sizeOf(usize);
55
66test "type pun signed and unsigned as single pointer" {
77 if (builtin.zig_backend == .stage1) return error.SkipZigTest;
8 if (builtin.zig_backend != .stage1) {
9 // TODO https://github.com/ziglang/zig/issues/9646
10 return error.SkipZigTest;
11 }
8 if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
9 if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
1210
1311 comptime {
1412 var x: u32 = 0;
......@@ -20,10 +18,7 @@ test "type pun signed and unsigned as single pointer" {
2018
2119test "type pun signed and unsigned as many pointer" {
2220 if (builtin.zig_backend == .stage1) return error.SkipZigTest;
23 if (builtin.zig_backend != .stage1) {
24 // TODO https://github.com/ziglang/zig/issues/9646
25 return error.SkipZigTest;
26 }
21 if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
2722
2823 comptime {
2924 var x: u32 = 0;
......@@ -35,10 +30,7 @@ test "type pun signed and unsigned as many pointer" {
3530
3631test "type pun signed and unsigned as array pointer" {
3732 if (builtin.zig_backend == .stage1) return error.SkipZigTest;
38 if (builtin.zig_backend != .stage1) {
39 // TODO https://github.com/ziglang/zig/issues/9646
40 return error.SkipZigTest;
41 }
33 if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
4234
4335 comptime {
4436 var x: u32 = 0;
......@@ -82,10 +74,7 @@ test "type pun signed and unsigned as array pointer" {
8274
8375test "type pun value and struct" {
8476 if (builtin.zig_backend == .stage1) return error.SkipZigTest;
85 if (builtin.zig_backend != .stage1) {
86 // TODO https://github.com/ziglang/zig/issues/9646
87 return error.SkipZigTest;
88 }
77 if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
8978
9079 comptime {
9180 const StructOfU32 = extern struct { x: u32 };
......@@ -102,10 +91,8 @@ fn bigToNativeEndian(comptime T: type, v: T) T {
10291}
10392test "type pun endianness" {
10493 if (builtin.zig_backend == .stage1) return error.SkipZigTest;
105 if (builtin.zig_backend != .stage1) {
106 // TODO https://github.com/ziglang/zig/issues/9646
107 return error.SkipZigTest;
108 }
94 if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
95 if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
10996
11097 comptime {
11198 const StructOfBytes = extern struct { x: [4]u8 };
......@@ -412,3 +399,26 @@ test "offset field ptr by enclosing array element size" {
412399 }
413400 }
414401}
402
403test "accessing reinterpreted memory of parent object" {
404 if (builtin.zig_backend == .stage1) return error.SkipZigTest;
405 if (builtin.zig_backend == .stage2_aarch64) return error.SkipZigTest; // TODO
406 if (builtin.zig_backend == .stage2_arm) return error.SkipZigTest; // TODO
407 const S = extern struct {
408 a: f32,
409 b: [4]u8,
410 c: f32,
411 };
412 const expected = if (endian == .Little) 102 else 38;
413
414 comptime {
415 const x = S{
416 .a = 1.5,
417 .b = [_]u8{ 1, 2, 3, 4 },
418 .c = 2.6,
419 };
420 const ptr = &x.b[0];
421 const b = @ptrCast([*c]const u8, ptr)[5];
422 try testing.expect(b == expected);
423 }
424}