ci: Move SAN into a separate workflow

.github/workflows/test-build.yml

@@ -42,6 +42,7 @@ jobs:
   build-yosys:
     name: Reusable build
     runs-on: ${{ matrix.os }}
+    # pre_job is a subset of pre_docs_job, so we can always build for pre_docs_job
     needs: pre_docs_job
     if: needs.pre_docs_job.outputs.should_skip != 'true'
     env:
@@ -49,7 +50,6 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        sanitizer: [undefined, address]
       fail-fast: false
     steps:
       - name: Checkout Yosys
@@ -67,7 +67,6 @@ jobs:
           mkdir build
           cd build
           make -f ../Makefile config-$CC
-          echo 'SANITIZER = ${{ matrix.sanitizer }}' >> Makefile.conf
           make -f ../Makefile -j$procs ENABLE_LTO=1
 
       - name: Log yosys-config output
@@ -83,7 +82,7 @@ jobs:
       - name: Store build artifact
         uses: actions/upload-artifact@v4
         with:
-          name: build-${{ matrix.os }}-${{ matrix.sanitizer }}
+          name: build-${{ matrix.os }}
           path: build.tar
           retention-days: 1
 
@@ -94,12 +93,9 @@ jobs:
     if: needs.pre_job.outputs.should_skip != 'true'
     env:
       CC: clang
-      ASAN_OPTIONS: halt_on_error=1
-      UBSAN_OPTIONS: halt_on_error=1
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest]
-        sanitizer: [undefined, address]
       fail-fast: false
     steps:
       - name: Checkout Yosys
@@ -148,7 +144,7 @@ jobs:
       - name: Download build artifact
         uses: actions/download-artifact@v4
         with:
-          name: build-${{ matrix.os }}-${{ matrix.sanitizer }}
+          name: build-${{ matrix.os }}
 
       - name: Uncompress build
         shell: bash
@@ -180,7 +176,6 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest]
-        sanitizer: [undefined, address]
       fail-fast: false
     steps:
       - name: Checkout Yosys
@@ -194,7 +189,7 @@ jobs:
       - name: Download build artifact
         uses: actions/download-artifact@v4
         with:
-          name: build-${{ matrix.os }}-${{ matrix.sanitizer }}
+          name: build-${{ matrix.os }}
 
       - name: Uncompress build
         shell: bash