[BoundsSafety] Add script to automatically regenerate -fbound-safety codegen tests

This is to help fix the tests failures in rdar://148767987

Author: delcypher

clang/utils/bounds_safety_fixup_codegen_tests.sh

@@ -0,0 +1,89 @@
+#!/bin/bash
+
+function usage() {
+  echo "$0 --bin-dir"
+  echo ""
+}
+
+BIN_DIR=""
+
+while [ -n "$1" ]; do
+  case "$1" in
+    --bin-dir)
+      shift
+      BIN_DIR="$1"
+    ;;
+    --help|-h)
+      usage
+      exit 0
+    ;;
+    *)
+      echo "Unrecognized option \"${1}\""
+      exit 1
+    ;;
+  esac
+  shift
+done
+
+if [ ! -d "${BIN_DIR}" ]; then
+  echo "BIN_DIR (${BIN_DIR}) does not exist"
+  exit 1
+fi
+
+LLVM_ROOT=$( cd "${BASH_SOURCE[0]%/*}/../../" ; pwd )
+echo "LLVM_ROOT:${LLVM_ROOT}"
+
+if [ ! -d "${LLVM_ROOT}" ]; then
+  echo "LLVM_ROOT (${LLVM_ROOT}) does not exist"
+  exit 1
+fi
+
+TEST_ROOT="${LLVM_ROOT}/clang/test"
+
+if [ ! -d "${TEST_ROOT}" ]; then
+  echo "TEST_ROOT (${TEST_ROOT}) does not exist"
+  exit 1
+fi
+
+UPDATE_SCRIPT="${LLVM_ROOT}/llvm/utils/update_cc_test_checks.py"
+
+if [ ! -f "${UPDATE_SCRIPT}" ]; then
+  echo "UPDATE_SCRIPT (${UPDATE_SCRIPT}) does not exist"
+  exit 1
+fi
+
+
+# Add test paths here:
+# E.g:
+# TESTS=( \
+#   BoundsSafety/CodeGen/constant-forge-ptr-expr.c \
+# )
+TESTS=( )
+
+for t in "${TESTS[@]}"; do
+  TEST=${TEST_ROOT}/$t
+  echo "Processing ${TEST}"
+  if [ ! -f "${TEST}" ]; then
+    echo "Can't find ${TEST}"
+    exit 1
+  fi
+
+  # Skip tests that aren't automatically generated codegen tests
+  IS_CODEGEN_TEST="$(grep -Ec 'Assertions have been autogenerated by utils/update_cc_test_checks\.py' ${TEST})"
+  if [ "${IS_CODEGEN_TEST}" -eq 0 ]; then
+    echo "Skipping non-codgen test"
+    continue
+  fi
+
+  # Note we assume BSD/macOS sed
+
+  # Disable the Objective-C RUN lines because they cause problems with the updating script because IR conflicts
+  sed -E -n -I ''  '/^\/\/ RUN:.+-fbounds-attributes-objc-experimental/s/\/\/ RUN:/\/\/ XXX_run:/;p' ${TEST}
+
+  # Update the codegen CHECK lines
+  "${UPDATE_SCRIPT}" --llvm-bin "${BIN_DIR}" ${TEST}
+
+  # Re-enable the Objective-C RUN lines.
+  sed -E -n -I ''  '/^\/\/ XXX_run:.+-fbounds-attributes-objc-experimental/s/\/\/ XXX_run:/\/\/ RUN:/;p' ${TEST}
+
+done