The parseInputFile function returns an empty unique_ptr to signal an
error, like when the input file doesn't exist, or is malformed. In this
case, the tool should exit immediately rather than segfault by
dereferencing the unique_ptr later.
Reviewed By: aeubanks
Differential Revision: https://reviews.llvm.org/D102891
--- /dev/null
+# RUN: not llvm-reduce --test=echo %s.NotAFileInTestingDir 2>&1 | FileCheck %s
+
+This file will not be read. An invalid file path is fed to llvm-reduce.
+
+# CHECK: llvm-reduce: {{.*}}.NotAFileInTestingDir: error:
\ No newline at end of file
std::unique_ptr<Module> OriginalProgram =
parseInputFile(InputFilename, Context);
+ if (!OriginalProgram) {
+ return 1;
+ }
+
// Initialize test environment
TestRunner Tester(TestFilename, TestArguments);
Tester.setProgram(std::move(OriginalProgram));