Update to LLVM-18

Author: mrLSD

.github/workflows/swift.yaml

@@ -18,7 +18,7 @@ jobs:
     - name: Pre-install
       run: |
         brew update
-        brew install llvm@17
+        brew install llvm@18
         echo 'export PATH="/usr/local/opt/llvm/bin:$PATH"' >> /Users/runner/.bash_profile
         echo 'export LDFLAGS="-L/usr/local/opt/llvm/lib"' >> /Users/runner/.bash_profile
         echo 'export CPPFLAGS="-I/usr/local/opt/llvm/include"' >> /Users/runner/.bash_profile
@@ -31,3 +31,4 @@ jobs:
       run: swift build -v
 #    - name: Run tests
 #      run: swift test -v
+

README.md

@@ -22,7 +22,7 @@ At the same time adhering to the principles of a safety and reliability implemen
 brew install llvm
 ```
 - Set Environment variables, that provided during `brew` llvm install
-- initialize `pkg-config`:
+- initializes `pkg-config`:
 ```
 ./utils/make-pkg-config.swift
 ```
@@ -32,14 +32,15 @@ brew install llvm
 ### Supported LLVM version
 
 - [x] v17.0
+- [x] v18.0
 
 
 ### Troubleshooting
 
-If `LLVM-C` head files during compulation doesn't found, make sure that you:
+If `LLVM-C` head files during compilation doesn't found, make sure that you are:
 - installed LLVM
 ```
-llv --version
+llc --version
 ```
 - Set environment variables for your terminal (for example in `.zshrc`). To get instruction about variables run:
 ```

utils/make-pkg-config.swift

@@ -60,7 +60,7 @@ func makeFile() throws {
     let brewLLVMConfig = { which("\(brewPrefix)/opt/llvm/bin/llvm-config") }
 
     /// Ensure we have llvm-config in the PATH
-    guard let llvmConfig = which("llvm-config-11") ?? which("llvm-config") ?? brewLLVMConfig() else {
+    guard let llvmConfig = which("llvm-config-15") ?? which("llvm-config") ?? brewLLVMConfig() else {
         throw "Failed to find llvm-config. Ensure llvm-config is installed and " +
             "in your PATH"
     }
@@ -82,7 +82,7 @@ func makeFile() throws {
     let version = (components[0], components[1], components[2])
 
     guard version >= (11, 0, 0) else {
-        throw "LLVMSwift requires LLVM version >=11.0.0, but you have \(versionStr)"
+        throw "LLVMSwift requires LLVM version >=15.0.0, but you have \(versionStr)"
     }
 
     print("LLVM version is \(versionStr)")