d7560e8968
rustc_codegen_ssa: use bitcasts instead of type punning for scalar transmutes. This specifically helps with `f32` <-> `u32` (`from_bits`, `to_bits`) in Rust-GPU (`rustc_codegen_spirv`), where (AFAIK) we don't yet have enough infrastructure to turn type punning memory accesses into SSA bitcasts. (There may be more instances, but the one I've seen myself is `f32::signum` from `num-traits` inspecting e.g. the sign bit) Sadly I've had to make an exception for `transmute`s between pointers and non-pointers, as LLVM disallows using `bitcast` for them. r? `@nagisa` cc `@khyperia` |
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| .. | ||
| back | ||
| coverageinfo | ||
| debuginfo | ||
| mir | ||
| traits | ||
| base.rs | ||
| common.rs | ||
| glue.rs | ||
| lib.rs | ||
| meth.rs | ||
| mono_item.rs | ||
| target_features.rs | ||