llvm: Accept new LLVM lifetime format

[maurer]

In llvm/llvm-project#150248 LLVM removed the size parameter from the lifetime format. Tolerate not having that size parameter.

[rustbot]

r? @Mark-Simulacrum

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[maurer]

Please do not merge this immediately, we're still testing it through the LLVM integration CI.

@rustbot label +LLVM-main

[nikic]

You should also adjust the intrinsic emission in

rust/compiler/rustc_codegen_llvm/src/builder.rs

Lines 1679 to 1691 in de3efa7

	fn call_lifetime_intrinsic(&mut self, intrinsic: &'static str, ptr: &'ll Value, size: Size) {
	let size = size.bytes();
	if size == 0 {
	return;
	}
	if !self.cx().sess().emit_lifetime_markers() {
	return;
	}
	self.call_intrinsic(intrinsic, &[self.val_ty(ptr)], &[self.cx.const_u64(size), ptr]);
	}
	}

[maurer]

r? nikic

We've got a green run on the HEAD integration: https://buildkite.com/llvm-project/rust-llvm-integrate-prototype/builds/39115#01989b27-10da-4bb5-a8e2-d2a4e8dff36c

[nikic]

@bors r+

[bors]

📌 Commit 258915a has been approved by nikic

It is now in the queue for this repository.