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More precise alignCast (allow for 32-bit targets)

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This commit is contained in:
Brian Carroll 2021-12-13 16:09:55 +00:00
parent 457041a314
commit 3c74acafa4
4 changed files with 7 additions and 7 deletions
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2
compiler/builtins/bitcode/src/dict.zig
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@ -216,7 +216,7 @@ pub const RocDict = extern struct {
}
// otherwise, check if the refcount is one
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(8, self.dict_bytes));
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(@alignOf(usize), self.dict_bytes));
return (ptr - 1)[0] == utils.REFCOUNT_ONE;
}

4
compiler/builtins/bitcode/src/list.zig
View file

@ -36,7 +36,7 @@ pub const RocList = extern struct {
}
// otherwise, check if the refcount is one
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(8, self.bytes));
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(@alignOf(usize), self.bytes));
return (ptr - 1)[0] == utils.REFCOUNT_ONE;
}
@ -1282,7 +1282,7 @@ pub fn listSet(
// `if inBounds then LowLevelListGet input index item else input`
// so we don't do a bounds check here. Hence, the list is also non-empty,
// because inserting into an empty list is always out of bounds
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(8, bytes));
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(@alignOf(usize), bytes));
if ((ptr - 1)[0] == utils.REFCOUNT_ONE) {
return listSetInPlaceHelp(bytes, index, element, element_width, dec);

6
compiler/builtins/bitcode/src/str.zig
View file

@ -246,7 +246,7 @@ pub const RocStr = extern struct {
} else {
// This is a big string, and it's not empty, so we can safely
// dereference the pointer.
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(8, self.str_bytes));
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(@alignOf(usize), self.str_bytes));
const capacity_or_refcount: isize = (ptr - 1)[0];
// If capacity_or_refcount is positive, then it's a capacity value.
@ -277,7 +277,7 @@ pub const RocStr = extern struct {
// to first change its flag to mark it as a small string!
return longest_small_str;
} else {
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(8, self.str_bytes));
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(@alignOf(usize), self.str_bytes));
const capacity_or_refcount: isize = (ptr - 1)[0];
if (capacity_or_refcount > 0) {
@ -309,7 +309,7 @@ pub const RocStr = extern struct {
}
fn isRefcountOne(self: RocStr) bool {
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(8, self.str_bytes));
const ptr: [*]usize = @ptrCast([*]usize, @alignCast(@alignOf(usize), self.str_bytes));
return (ptr - 1)[0] == utils.REFCOUNT_ONE;
}

2
compiler/builtins/bitcode/src/utils.zig
View file

@ -247,7 +247,7 @@ pub const RocResult = extern struct {
// - the tag is the first field
// - the tag is usize bytes wide
// - Ok has tag_id 1, because Err < Ok
const usizes: [*]usize = @ptrCast([*]usize, @alignCast(8, self.bytes));
const usizes: [*]usize = @ptrCast([*]usize, @alignCast(@alignOf(usize), self.bytes));
return usizes[0] == 1;
}