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authorDaniel Dunbar <daniel@zuster.org>2010-05-18 17:22:19 +0000
committerDaniel Dunbar <daniel@zuster.org>2010-05-18 17:22:19 +0000
commit3538c808f8fd1d4124f0cda4c962467ec8ae5b70 (patch)
treecf665a907e318d9c2ed971a7700a28ee4684bbba /lib/CodeGen/LLVMTargetMachine.cpp
parent68e947ac61dd6f3404ea3fbc3b5f0c539c694a06 (diff)
downloadllvm-3538c808f8fd1d4124f0cda4c962467ec8ae5b70.tar.gz
llc (et al): Add support for --show-encoding and --show-inst.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104029 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/LLVMTargetMachine.cpp')
-rw-r--r--lib/CodeGen/LLVMTargetMachine.cpp14
1 files changed, 13 insertions, 1 deletions
diff --git a/lib/CodeGen/LLVMTargetMachine.cpp b/lib/CodeGen/LLVMTargetMachine.cpp
index 681b678c37f8..9a776ed0e8d8 100644
--- a/lib/CodeGen/LLVMTargetMachine.cpp
+++ b/lib/CodeGen/LLVMTargetMachine.cpp
@@ -65,6 +65,10 @@ static cl::opt<bool> PrintISelInput("print-isel-input", cl::Hidden,
cl::desc("Print LLVM IR input to isel pass"));
static cl::opt<bool> PrintGCInfo("print-gc", cl::Hidden,
cl::desc("Dump garbage collector data"));
+static cl::opt<bool> ShowMCEncoding("show-mc-encoding", cl::Hidden,
+ cl::desc("Show encoding in .s output"));
+static cl::opt<bool> ShowMCInst("show-mc-inst", cl::Hidden,
+ cl::desc("Show instruction structure in .s output"));
static cl::opt<bool> VerifyMachineCode("verify-machineinstrs", cl::Hidden,
cl::desc("Verify generated machine code"),
cl::init(getenv("LLVM_VERIFY_MACHINEINSTRS")!=NULL));
@@ -131,10 +135,18 @@ bool LLVMTargetMachine::addPassesToEmitFile(PassManagerBase &PM,
case CGFT_AssemblyFile: {
MCInstPrinter *InstPrinter =
getTarget().createMCInstPrinter(MAI.getAssemblerDialect(), MAI);
+
+ // Create a code emitter if asked to show the encoding.
+ //
+ // FIXME: These are currently leaked.
+ MCCodeEmitter *MCE = 0;
+ if (ShowMCEncoding)
+ MCE = getTarget().createCodeEmitter(*this, *Context);
+
AsmStreamer.reset(createAsmStreamer(*Context, Out,
getTargetData()->isLittleEndian(),
getVerboseAsm(), InstPrinter,
- /*codeemitter*/0));
+ MCE, ShowMCInst));
break;
}
case CGFT_ObjectFile: {