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Fixed bug generating $c += 1 when $c was derived from a pointer but behind a cast.

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This commit is contained in:
Christoffer Lerno
2025-08-06 00:44:22 +02:00
parent ed61b51489
commit 24c03f9800
3 changed files with 23 additions and 3 deletions
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1
releasenotes.md
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@@ -18,6 +18,7 @@
- Compiler assertion when defining a function with return type untyped_list #2368. - Compiler assertion when defining a function with return type untyped_list #2368.
- Compiler assert when using generic parameters list without any parameters. #2369 - Compiler assert when using generic parameters list without any parameters. #2369
- Parsing difference between "0x00." and "0X00." literals #2371 - Parsing difference between "0x00." and "0X00." literals #2371
- Fixed bug generating `$c += 1` when `$c` was derived from a pointer but behind a cast.
### Stdlib changes ### Stdlib changes
- Add `==` to `Pair`, `Triple` and TzDateTime. Add print to `Pair` and `Triple`. - Add `==` to `Pair`, `Triple` and TzDateTime. Add print to `Pair` and `Triple`.

6
src/compiler/sema_expr.c
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@@ -6764,13 +6764,13 @@ static bool sema_binary_analyse_ct_op_assign(SemaContext *context, Expr *expr, E
if (!sema_expr_analyse_binary(context, NULL, expr, NULL)) return false; if (!sema_expr_analyse_binary(context, NULL, expr, NULL)) return false;
expr->resolve_status = RESOLVE_DONE; expr->resolve_status = RESOLVE_DONE;
if (!sema_cast_const(expr)) if (!expr_is_runtime_const(expr))
{ {
RETURN_SEMA_ERROR(exprptr(expr->binary_expr.right), "Expected a constant expression."); RETURN_SEMA_ERROR(expr, "Expected this to result in a constant expression.");
} }
left_var->var.init_expr = expr; left_var->var.init_expr = expr;
left->type = expr->type; left_var->type = expr->type;
return true; return true;
} }

19
test/test_suite/compile_time/compile_time_pointer_offset.c3t Normal file
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@@ -0,0 +1,19 @@
// #target: macos-x64
module test;
macro checker()
{
long $b = (iptr) ((uint*) bool.typeid);
$b += 1;
return $b;
}
fn int main()
{
long x = checker();
return 0;
}
/* #expect: test.ll
%x = alloca i64, align 8
store i64 ptrtoint (ptr getelementptr (i8, ptr @"$ct.bool", i64 1) to i64), ptr %x, align 8
ret i32 0