rust - https://github.com/rust-lang/rust

Age	Commit message (Collapse)	Author	Lines
2023-01-11	Move /src/test to /tests	Albert Larsan	-14/+0

2021-10-22	Update the minimum external LLVM to 12	Josh Stone	-1/+0

2021-03-10	Remove the -Zinsert-sideeffect	Simonas Kazlauskas	-1/+2
	This removes all of the code we had in place to work-around LLVM's handling of forward progress. From this removal excluded is a workaround where we'd insert a `sideeffect` into clearly infinite loops such as `loop {}`. This code remains conditionally effective when the LLVM version is earlier than 12.0, which fixed the forward progress related miscompilations at their root.
2019-09-28	Gate llvm.sideeffect under -Z insert-sideeffect	Xiang Fan	-1/+1

2019-09-28	Add llvm.sideeffect to potential infinite loops and recursions	Xiang Fan	-0/+14
	LLVM assumes that a thread will eventually cause side effect. This is not true in Rust if a loop or recursion does nothing in its body, causing undefined behavior even in common cases like `loop {}`. Inserting llvm.sideeffect fixes the undefined behavior. As a micro-optimization, only insert llvm.sideeffect when jumping back in blocks or calling a function. A patch for LLVM is expected to allow empty non-terminate code by default and fix this issue from LLVM side. https://github.com/rust-lang/rust/issues/28728