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Try again to fix unused variable warning on lld-x86_64-darwin13 after r287439. 

The previous attempt didn't work. I assume LLVM_ATTRIBUTE_UNUSED isn't
available on that machine.

llvm-svn: 287442
This commit is contained in:
Daniel Sanders 2016-11-19 14:47:41 +00:00
parent c6d1986a84
commit c95590bc45
2 changed files with 7 additions and 3 deletions
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3
llvm/lib/Target/BPF/MCTargetDesc/BPFMCCodeEmitter.cpp
View File

@ -20,7 +20,6 @@
#include "llvm/MC/MCSubtargetInfo.h"
#include "llvm/MC/MCSymbol.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/EndianStream.h"
#include "llvm/Support/raw_ostream.h"
using namespace llvm;
@ -31,7 +30,7 @@ namespace {
class BPFMCCodeEmitter : public MCCodeEmitter {
BPFMCCodeEmitter(const BPFMCCodeEmitter &) = delete;
void operator=(const BPFMCCodeEmitter &) = delete;
const MCInstrInfo &MCII LLVM_ATTRIBUTE_UNUSED; // Unused in NDEBUG builds.
const MCInstrInfo &MCII;
const MCRegisterInfo &MRI;
bool IsLittleEndian;

7
llvm/utils/TableGen/CodeEmitterGen.cpp
View File

@ -356,7 +356,8 @@ void CodeEmitterGen::run(raw_ostream &o) {
<< " RequiredFeatures[Inst.getOpcode()];\n"
<< " if (MissingFeatures) {\n"
<< " std::ostringstream Msg;\n"
<< " Msg << \"Attempting to emit \" << MCII.getName(Inst.getOpcode()).str()\n"
<< " Msg << \"Attempting to emit \" << "
"MCII.getName(Inst.getOpcode()).str()\n"
<< " << \" instruction but the \";\n"
<< " for (unsigned i = 0; i < 8 * sizeof(MissingFeatures); ++i)\n"
<< " if (MissingFeatures & (1ULL << i))\n"
@ -364,6 +365,10 @@ void CodeEmitterGen::run(raw_ostream &o) {
<< " Msg << \"predicate(s) are not met\";\n"
<< " report_fatal_error(Msg.str());\n"
<< " }\n"
<< "#else\n"
<< "// Silence unused variable warning on targets that don't use MCII for "
"other purposes (e.g. BPF).\n"
<< "(void)MCII;\n"
<< "#endif // NDEBUG\n";
o << "}\n";
o << "#endif\n";