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Merge pull request #2351 from ziglang/fixed-2346

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fixes #2346
This commit is contained in:
Jimmi Holst Christensen 2019-04-24 18:42:55 +02:00 committed by GitHub
commit e4a86d4653
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3 changed files with 20 additions and 0 deletions
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13
src/ir.cpp
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@ -188,6 +188,19 @@ static ConstExprValue *const_ptr_pointee_unchecked(CodeGen *g, ConstExprValue *c
assert(get_src_ptr_type(const_val->type) != nullptr);
assert(const_val->special == ConstValSpecialStatic);
ConstExprValue *result;
switch (type_has_one_possible_value(g, const_val->type->data.pointer.child_type)) {
case OnePossibleValueInvalid:
zig_unreachable();
case OnePossibleValueYes:
result = create_const_vals(1);
result->type = const_val->type->data.pointer.child_type;
result->special = ConstValSpecialStatic;
return result;
case OnePossibleValueNo:
break;
}
switch (const_val->data.x_ptr.special) {
case ConstPtrSpecialInvalid:
zig_unreachable();

1
test/stage1/behavior.zig
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@ -24,6 +24,7 @@ comptime {
_ = @import("behavior/bugs/1851.zig");
_ = @import("behavior/bugs/1914.zig");
_ = @import("behavior/bugs/2006.zig");
_ = @import("behavior/bugs/2346.zig");
_ = @import("behavior/bugs/394.zig");
_ = @import("behavior/bugs/421.zig");
_ = @import("behavior/bugs/529.zig");

6
test/stage1/behavior/bugs/2346.zig Normal file
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@ -0,0 +1,6 @@
test "" {
const a: *void = undefined;
const b: *[1]void = a;
const c: *[0]u8 = undefined;
const d: []u8 = c;
}