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authorKyle Huey <khuey@kylehuey.com>2024-11-18 18:48:10 -0800
committerKyle Huey <khuey@kylehuey.com>2024-11-19 05:19:09 -0800
commitf5b023bd9cf43803a6d39b101c54a98cb7e7da7c (patch)
tree5598ae3f48cafe381989a664a47365f3eb5553aa /compiler/rustc_ty_utils/src/common_traits.rs
parent1e4ebb0ccdffe4a8ddb15cb8e95bef3b905f045b (diff)
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When the required discriminator value exceeds LLVM's limits, drop the debug info for the function instead of panicking.
The maximum discriminator value LLVM can currently encode is 2^12. If macro use
results in more than 2^12 calls to the same function attributed to the same
callsite, and those calls are MIR-inlined, we will require more than the maximum
discriminator value to completely represent the debug information. Once we reach
that point drop the debug info instead.
Diffstat (limited to 'compiler/rustc_ty_utils/src/common_traits.rs')
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