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fix bug in use of alignment in free for tag unions

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Folkert 2023-09-28 19:26:10 +02:00 • committed by Brendan Hansknecht
parent c618cd5a4b
commit ec0eddb8b2
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2 changed files with 3 additions and 2 deletions
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3
crates/compiler/builtins/bitcode/src/utils.zig
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@ -267,8 +267,9 @@ pub fn freeDataPtrC(
const masked_ptr = ptr & ~tag_mask;
const isizes: [*]isize = @as([*]isize, @ptrFromInt(masked_ptr));
const offset = @max(1, @divFloor(alignment, @sizeOf(usize)));
return freeRcPtrC(isizes - 1, alignment);
return freeRcPtrC(isizes - offset, alignment);
}
pub fn freeRcPtrC(

2
crates/compiler/gen_llvm/src/llvm/build.rs
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@ -3464,7 +3464,7 @@ pub(crate) fn build_exp_stmt<'a, 'ctx>(
Free(symbol) => {
// unconditionally deallocate the symbol
let (value, layout) = scope.load_symbol_and_layout(symbol);
let alignment = layout_interner.alignment_bytes(layout);
let alignment = layout_interner.allocation_alignment_bytes(layout);
debug_assert!(value.is_pointer_value());
let value = value.into_pointer_value();