Speed up legacy AVX CI

Author: samuel40791765

.github/workflows/linux_x86_omnibus.yml

@@ -175,7 +175,7 @@ jobs:
     runs-on:
       - codebuild-aws-lc-ci-github-actions-${{ github.run_id }}-${{ github.run_attempt }}
         image:linux-5.0
-        instance-size:large
+        instance-size:${{ matrix.build32 && 'xlarge' || 'large' }}
     strategy:
       fail-fast: false
       matrix:

tests/ci/run_legacy_avx_tests.sh

@@ -20,6 +20,6 @@ for build_option in "${build_options_to_test[@]}"; do
   build_and_test ${build_option} -DMY_ASSEMBLER_IS_TOO_OLD_FOR_512AVX=ON
 done
 
-# When Go is disabled, a different test target is produced
-build_and_run_minimal_test -DDISABLE_PERL=ON -DDISABLE_GO=ON -DMY_ASSEMBLER_IS_TOO_OLD_FOR_AVX=ON
-build_and_run_minimal_test -DDISABLE_PERL=ON -DDISABLE_GO=ON -DMY_ASSEMBLER_IS_TOO_OLD_FOR_512AVX=ON
+# We only need to test disabling perl here to ensure coverage against the pre-generated assembly.
+build_and_run_minimal_test -DDISABLE_PERL=ON -DMY_ASSEMBLER_IS_TOO_OLD_FOR_AVX=ON
+build_and_run_minimal_test -DDISABLE_PERL=ON -DMY_ASSEMBLER_IS_TOO_OLD_FOR_512AVX=ON