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-rw-r--r--llvm/tools/llvm-mc/llvm-mc.cpp19
1 files changed, 14 insertions, 5 deletions
diff --git a/llvm/tools/llvm-mc/llvm-mc.cpp b/llvm/tools/llvm-mc/llvm-mc.cpp
index 9ea8f2ef433..d9e3798ee88 100644
--- a/llvm/tools/llvm-mc/llvm-mc.cpp
+++ b/llvm/tools/llvm-mc/llvm-mc.cpp
@@ -52,9 +52,18 @@ OutputFilename("o", cl::desc("Output filename"),
static cl::opt<bool>
ShowEncoding("show-encoding", cl::desc("Show instruction encodings"));
-static cl::opt<bool>
-CompressDebugSections("compress-debug-sections",
- cl::desc("Compress DWARF debug sections"));
+static cl::opt<DebugCompressionType>
+CompressDebugSections("compress-debug-sections", cl::ValueOptional,
+ cl::init(DebugCompressionType::DCT_None),
+ cl::desc("Choose DWARF debug sections compression:"),
+ cl::values(
+ clEnumValN(DebugCompressionType::DCT_None, "none",
+ "No compression"),
+ clEnumValN(DebugCompressionType::DCT_Zlib, "zlib",
+ "Use zlib compression"),
+ clEnumValN(DebugCompressionType::DCT_ZlibGnu, "zlib-gnu",
+ "Use zlib-gnu compression (depricated)"),
+ clEnumValEnd));
static cl::opt<bool>
ShowInst("show-inst", cl::desc("Show internal instruction representation"));
@@ -407,13 +416,13 @@ int main(int argc, char **argv) {
std::unique_ptr<MCAsmInfo> MAI(TheTarget->createMCAsmInfo(*MRI, TripleName));
assert(MAI && "Unable to create target asm info!");
- if (CompressDebugSections) {
+ if (CompressDebugSections != DebugCompressionType::DCT_None) {
if (!zlib::isAvailable()) {
errs() << ProgName
<< ": build tools with zlib to enable -compress-debug-sections";
return 1;
}
- MAI->setCompressDebugSections(true);
+ MAI->setCompressDebugSections(CompressDebugSections);
}
// FIXME: This is not pretty. MCContext has a ptr to MCObjectFileInfo and
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