Update to LLVM 16

Rust recently updated to LLVM 16 (rust-lang/rust#107224) and the change
is likely to be provided in next nightly builds.

.github/workflows/build-test.yml

@@ -21,7 +21,7 @@ jobs:
           - "stable"
           - "beta"
           - "nightly"
-        llvm: ["15", "rustc"]
+        llvm: ["16", "rustc"]
     name: "rustc: ${{ matrix.rust }}, llvm: ${{ matrix.llvm }}"
 
     env:
@@ -80,9 +80,9 @@ jobs:
         shell: bash
         run: |
           wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | sudo apt-key add -
-          echo -e "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-15 main\n" | sudo tee /etc/apt/sources.list.d/llvm.list
+          echo -e "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-16 main\n" | sudo tee /etc/apt/sources.list.d/llvm.list
           sudo apt-get update
-          sudo apt-get install llvm-15-tools
+          sudo apt-get install llvm-16-tools
 
       - name: Build
         run: cargo build --verbose ${CARGO_ARGS}

Cargo.toml

@@ -20,7 +20,7 @@ libc = "0.2"
 thiserror = { version = "1.0", optional = true }
 ar = { version = "0.8", optional = true }
 log = { version = "0.4", optional = true }
-llvm-sys = { version = "150", optional = true }
+llvm-sys = { version = "160", optional = true }
 aya-rustc-llvm-proxy = { version = "0.5.0", optional = true }
 
 [dev-dependencies]

tests/tests.rs

@@ -19,7 +19,7 @@ fn run_mode(mode: &'static str) {
     config.target_rustcflags = Some(rustc_flags);
     if let Ok(filecheck) = which("FileCheck") {
         config.llvm_filecheck = Some(filecheck)
-    } else if let Ok(filecheck) = which("FileCheck-15") {
+    } else if let Ok(filecheck) = which("FileCheck-16") {
         config.llvm_filecheck = Some(filecheck)
     } else {
         panic!("no FileCheck binary found");