Prevent output of bytecode to std::cout unless the --force flag is given.
This prevents bytecode splats with usage like: cat file.ll | llvm-as -
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19239 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-as/llvm-as.cpp b/tools/llvm-as/llvm-as.cpp
index eb77a33..ef1602b 100644
--- a/tools/llvm-as/llvm-as.cpp
+++ b/tools/llvm-as/llvm-as.cpp
@@ -20,6 +20,7 @@
#include "llvm/Bytecode/Writer.h"
#include "llvm/Analysis/Verifier.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/SystemUtils.h"
#include "llvm/System/Signals.h"
#include <fstream>
#include <iostream>
@@ -124,7 +125,9 @@
return 1;
}
- WriteBytecodeToFile(M.get(), *Out, !NoCompress);
+ if (Force || !CheckBytecodeOutputToConsole(Out,true)) {
+ WriteBytecodeToFile(M.get(), *Out, !NoCompress);
+ }
} catch (const ParseException &E) {
std::cerr << argv[0] << ": " << E.getMessage() << "\n";
exitCode = 1;