Erik Eckstein bd1af9283f Optimizer: fix the enum tag comparison optimization ...

This optimization replaces (the very inefficient) RawRepresentable comparison to a simple compare of enum tags.
However if the raw type is a custom type we don't know how the comparison is implemented.
A custom raw type can implement the case comparison in a way that comparing different cases will return `true`.
Therefore only do the optimization for known stdlib raw value types.

Fixes a mis-compile
https://github.com/swiftlang/swift/issues/87906
rdar://172746003

2026-03-24 08:54:09 +01:00

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AST

Optimizer: fix the enum tag comparison optimization

2026-03-24 08:54:09 +01:00

Basic

Address review comments

2025-10-15 05:14:15 +03:00

Optimizer

Optimizer: fix the enum tag comparison optimization

2026-03-24 08:54:09 +01:00

SIL

Optimizer: fix the enum tag comparison optimization

2026-03-24 08:54:09 +01:00

CMakeLists.txt

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