Build LLVM 19.

Author: elliottslaughter

.github/workflows/main.yml

@@ -8,7 +8,7 @@ jobs:
     strategy:
       matrix:
         os: ['ubuntu-latest', 'macos-12', 'macos-14', 'windows-2022']
-        llvm: ['18.1.7']
+        llvm: ['19.1.7']
     steps:
       - uses: actions/checkout@v4
       - run: ./main.sh

README.md

@@ -33,6 +33,6 @@ due to the 3-4× slowdown with emulation. These commands have to
 be run locally with each release:
 
 ```bash
-triple=aarch64-linux-gnu arch=arm64 version=17.0.5 threads=20 ./main.sh
-triple=powerpc64le-linux-gnu arch=ppc64le version=17.0.5 threads=20 ./main.sh
+triple=aarch64-linux-gnu arch=arm64 version=19.1.7 threads=20 ./main.sh
+triple=powerpc64le-linux-gnu arch=ppc64le version=19.1.7 threads=20 ./main.sh
 ```