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CFI: f32 and f64 are encoded incorrectly for cross-language CFI #115150

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CFI: f32 and f64 are encoded incorrectly for cross-language CFI#115150
#115151
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rcvalle
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C-bugCategory: This is a bug.PG-exploit-mitigationsProject group: Exploit mitigationsT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.requires-nightlyThis issue requires a nightly compiler in some way.
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@rcvalle
rcvalle
opened on Aug 23, 2023

I missed changing the encoding for f32 and f64 when I introduced the integer normalization option in #105452 as integer normalization does not include floating point. f32 and f64 should be always encoded as f and d since they are both FFI safe when their representation are the same (i.e., IEEE 754) for both the Rust compiler and Clang.

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C-bugCategory: This is a bug.PG-exploit-mitigationsProject group: Exploit mitigationsT-compilerRelevant to the compiler team, which will review and decide on the PR/issue.requires-nightlyThis issue requires a nightly compiler in some way.

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