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Fix inline transmutation of [16]i8 to i128

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Forbids LLVM from generating SSE aligned loads on unaligned data.
This commit is contained in:
Feoramund
2024-08-26 04:48:31 -04:00
parent 8de1e88c4f
commit c424c94030
1 changed files with 1 additions and 1 deletions
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2
src/llvm_backend_utility.cpp
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@@ -263,7 +263,7 @@ gb_internal lbValue lb_emit_transmute(lbProcedure *p, lbValue value, Type *t) {
if (is_type_simd_vector(src) && is_type_simd_vector(dst)) {
res.value = LLVMBuildBitCast(p->builder, value.value, lb_type(p->module, t), "");
return res;
} else if (is_type_array_like(src) && is_type_simd_vector(dst)) {
} else if (is_type_array_like(src) && (is_type_simd_vector(dst) || is_type_integer_128bit(dst))) {
unsigned align = cast(unsigned)gb_max(type_align_of(src), type_align_of(dst));
lbValue ptr = lb_address_from_load_or_generate_local(p, value);
if (lb_try_update_alignment(ptr, align)) {