Update to llvm 19/20 being the supported versions

We are now officially dropping 18. This updates the documentation and
PR testing to match.

The default for run_ock_internal_tests.yml has been dropped. This needs
to be set at the higher level of run_pr_tests_caller.yml or
planned_testing_caller.yml.

Fixed windows job for run_internal_test.yml to not run on a pull request.
Remove create_llvm workflow as this is no longer needed.

Author: Colin Davidson

.github/workflows/create_llvm.yml

@@ -15,6 +15,10 @@ on:
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
 
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
 permissions: {}
 
 jobs:

.github/workflows/docs.yml

@@ -13,15 +13,13 @@ on:
         type: string
         default: 'install'
       llvm_previous:
-        required: false
+        required: true
         type: string
         description: 'previous llvm version to for those jobs tied to previous.'
-        default: '18'
       llvm_current:
-        required: false
+        required: true
         type: string
         description: 'previous llvm version to for those jobs tied to current.'
-        default: '19'
       github_token:
         type: string
         description: 'gh token for downloading artifacts - only needed if we want llvm from a previous workflow'
@@ -203,7 +201,7 @@ jobs:
   run_windows_msvc_x86_64_llvm_latest_cl3_0_offline:
     runs-on: windows-2019
     # do not run as PR job due to not yet supporting windows install
-    if: contains(inputs.target_list, 'host_x86_64_windows') && inputs.is_pull_request != 'true'
+    if: contains(inputs.target_list, 'host_x86_64_windows') && !inputs.is_pull_request
     steps:
       - name: Setup Windows llvm base
         uses: llvm/actions/setup-windows@main

.github/workflows/run_ock_internal_tests.yml

@@ -26,4 +26,7 @@ jobs:
     with:
       is_pull_request: true
       llvm_source: install
+      llvm_previous: 19
+      llvm_current: 20
+
 

.github/workflows/run_pr_tests_caller.yml

@@ -2,10 +2,15 @@
 
 ## TBD
 
+Feature additions:
+
+* Support for LLVM 20 has been added.
+
 Upgrade guidance:
 
 * Support for degenerate subgroups has been removed. No in-tree target or
   template was using this, but custom targets may need to be updated.
+* Support for LLVM versions before 19 has been removed.
 
 ## Version 4.0.0
 

CHANGELOG.md

@@ -57,8 +57,8 @@ include(DetectLLVMMSVCCRT)
   :cmake:variable:`LLVM_PACKAGE_VERSION` from the imported LLVM install is
   a supported version.
 #]=======================================================================]
-set(CA_LLVM_MINIMUM_VERSION 18.0.0)
-set(CA_LLVM_MAXIMUM_VERSION 19)
+set(CA_LLVM_MINIMUM_VERSION 19.0.0)
+set(CA_LLVM_MAXIMUM_VERSION 20)
 string(REPLACE ";" "', '" CA_LLVM_VERSIONS_PRETTY "${CA_LLVM_VERSIONS}")
 if("${LLVM_PACKAGE_VERSION}" VERSION_LESS "${CA_LLVM_MINIMUM_VERSION}")
   message(FATAL_ERROR

cmake/ImportLLVM.cmake

@@ -8,5 +8,5 @@ All targets
 
 .. rubric:: Supported - tested regularly
 
-- 18.1.8+
-- 19.1.2+
+- 19.1.7+
+- 20.1.2+