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Rollup merge of #104464 - mati865:reduce-eh-overallocation-amd64, r=thomcc

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Reduce exceptions overallocation on non Windows x86_64

Addressing https://github.com/rust-lang/rust/pull/103894#discussion_r1020950196
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Dylan DPC 2022-11-22 16:36:37 +05:30 • committed by GitHub
commit 20d6a44334
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5
library/unwind/src/libunwind.rs
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@ -27,7 +27,10 @@ pub type _Unwind_Trace_Fn =
#[cfg(target_arch = "x86")]
pub const unwinder_private_data_size: usize = 5;
#[cfg(target_arch = "x86_64")]
#[cfg(all(target_arch = "x86_64", not(target_os = "windows")))]
pub const unwinder_private_data_size: usize = 2;
#[cfg(all(target_arch = "x86_64", target_os = "windows"))]
pub const unwinder_private_data_size: usize = 6;
#[cfg(all(target_arch = "arm", not(any(target_os = "ios", target_os = "watchos"))))]