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Allow basic casting of simd vectors

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gingerBill
2022-05-25 18:59:47 +01:00
parent 81dd727f75
commit f21e9ee712
2 changed files with 44 additions and 0 deletions
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32
src/llvm_backend_expr.cpp
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@@ -1820,6 +1820,38 @@ lbValue lb_emit_conv(lbProcedure *p, lbValue value, Type *t) {
return res;
}
if (is_type_simd_vector(src) && is_type_simd_vector(dst)) {
Type *src_elem = core_array_type(src);
Type *dst_elem = core_array_type(dst);
GB_ASSERT(src->SimdVector.count == dst->SimdVector.count);
lbValue res = {};
res.type = t;
if (are_types_identical(src_elem, dst_elem)) {
res.value = value.value;
} else if (is_type_float(src_elem) && is_type_integer(dst_elem)) {
if (is_type_unsigned(dst_elem)) {
res.value = LLVMBuildFPToUI(p->builder, value.value, lb_type(m, t), "");
} else {
res.value = LLVMBuildFPToSI(p->builder, value.value, lb_type(m, t), "");
}
} else if (is_type_integer(src_elem) && is_type_float(dst_elem)) {
if (is_type_unsigned(src_elem)) {
res.value = LLVMBuildUIToFP(p->builder, value.value, lb_type(m, t), "");
} else {
res.value = LLVMBuildSIToFP(p->builder, value.value, lb_type(m, t), "");
}
} else if (is_type_integer(src_elem) && is_type_integer(dst_elem)) {
res.value = LLVMBuildIntCast2(p->builder, value.value, lb_type(m, t), !is_type_unsigned(src_elem), "");
} else if (is_type_float(src_elem) && is_type_float(dst_elem)) {
res.value = LLVMBuildFPCast(p->builder, value.value, lb_type(m, t), "");
} else {
GB_PANIC("Unhandled simd vector conversion: %s -> %s", type_to_string(src), type_to_string(dst));
}
return res;
}
// Pointer <-> uintptr
if (is_type_pointer(src) && is_type_uintptr(dst)) {
lbValue res = {};