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Merge pull request #3348 from rick-masters/fix_convert_smaller_float_endian

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Implement endian conversions for smaller float types.
This commit is contained in:
gingerBill
2024-03-29 22:13:58 +00:00
committed by GitHub
parent 28fb1ba83d e1b545860f
commit d84d65ba45
1 changed files with 15 additions and 3 deletions
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18
src/llvm_backend_const.cpp
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@@ -730,9 +730,21 @@ gb_internal lbValue lb_const_value(lbModule *m, Type *type, ExactValue value, bo
return res;
case ExactValue_Float:
if (is_type_different_to_arch_endianness(type)) {
u64 u = bit_cast<u64>(value.value_float);
u = gb_endian_swap64(u);
res.value = LLVMConstReal(lb_type(m, original_type), bit_cast<f64>(u));
if (type->Basic.kind == Basic_f32le || type->Basic.kind == Basic_f32be) {
f32 f = static_cast<float>(value.value_float);
u32 u = bit_cast<u32>(f);
u = gb_endian_swap32(u);
res.value = LLVMConstReal(lb_type(m, original_type), bit_cast<f32>(u));
} else if (type->Basic.kind == Basic_f16le || type->Basic.kind == Basic_f16be) {
f32 f = static_cast<float>(value.value_float);
u16 u = f32_to_f16(f);
u = gb_endian_swap16(u);
res.value = LLVMConstReal(lb_type(m, original_type), f16_to_f32(u));
} else {
u64 u = bit_cast<u64>(value.value_float);
u = gb_endian_swap64(u);
res.value = LLVMConstReal(lb_type(m, original_type), bit_cast<f64>(u));
}
} else {
res.value = LLVMConstReal(lb_type(m, original_type), value.value_float);
}