diff options
author | Sebastian Pop <sebpop@gmail.com> | 2016-07-15 23:15:06 +0000 |
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committer | Sebastian Pop <sebpop@gmail.com> | 2016-07-15 23:15:06 +0000 |
commit | 91aa2f63fb1b97053eee63c40349fb60955cf96b (patch) | |
tree | bfa8ca71197fb337f031ee4baa2c58999777340b /tools/bugpoint | |
parent | 7e877ba91a08d2363001448f2c3ebe33d1f7d0c0 (diff) |
bugpoint: add flag -verbose-errors
The default behavior of bugpoint is to print "<crash>" when it finds a reduced
test that crashes compilation. With this flag we now can see the output of the
crashing program. This is useful to make sure it is the same error being
tracked down and not a different error that happens to crash the compiler as
well.
Differential Revision: https://reviews.llvm.org/D22411
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@275646 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/bugpoint')
-rw-r--r-- | tools/bugpoint/CrashDebugger.cpp | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/tools/bugpoint/CrashDebugger.cpp b/tools/bugpoint/CrashDebugger.cpp index 07fe0d7acbd..b25e6ecec19 100644 --- a/tools/bugpoint/CrashDebugger.cpp +++ b/tools/bugpoint/CrashDebugger.cpp @@ -54,6 +54,9 @@ namespace { cl::opt<bool> NoNamedMDRM("disable-namedmd-remove", cl::desc("Do not remove global named metadata"), cl::init(false)); + cl::opt<bool> VerboseErrors("verbose-errors", + cl::desc("Print the output of crashing program"), + cl::init(false)); } namespace llvm { @@ -905,7 +908,10 @@ static bool TestForCodeGenCrash(const BugDriver &BD, Module *M) { std::string Error; BD.compileProgram(M, &Error); if (!Error.empty()) { - errs() << "<crash>\n"; + if (VerboseErrors) + errs() << Error << "\n"; + else + errs() << "<crash>\n"; return true; // Tool is still crashing. } errs() << '\n'; |