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Merge pull request #5738 from jakubtomsu/fix-simd-ptr-transmute

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[LLVM backend] SIMD vector transmute only uses bitcast when the elements aren't pointers
This commit is contained in:
gingerBill
2025-10-05 20:27:23 +01:00
committed by GitHub
parent 810ca89253 588513a510
commit 3f7fc1e9bf
1 changed files with 7 additions and 0 deletions
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src/llvm_backend_utility.cpp
+7
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@@ -286,7 +286,14 @@ gb_internal lbValue lb_emit_transmute(lbProcedure *p, lbValue value, Type *t) {
}
}
bool is_simd_vector_bitcastable = false;
if (is_type_simd_vector(src) && is_type_simd_vector(dst)) {
if (!is_type_internally_pointer_like(src->SimdVector.elem) && !is_type_internally_pointer_like(dst->SimdVector.elem)) {
is_simd_vector_bitcastable = true;
}
}
if (is_simd_vector_bitcastable) {
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) || is_type_integer_128bit(dst))) {