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Add a temporary command line option to verify machine code after each spill or 

split.

llvm-svn: 117597
This commit is contained in:
Jakob Stoklund Olesen 2010-10-28 20:34:47 +00:00
parent 47215f4e04
commit 1005cf323d
1 changed files with 6 additions and 0 deletions
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6
llvm/lib/CodeGen/InlineSpiller.cpp
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@ -25,11 +25,15 @@
#include "llvm/CodeGen/MachineRegisterInfo.h" #include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/Target/TargetMachine.h" #include "llvm/Target/TargetMachine.h"
#include "llvm/Target/TargetInstrInfo.h" #include "llvm/Target/TargetInstrInfo.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h" #include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h" #include "llvm/Support/raw_ostream.h"
using namespace llvm; using namespace llvm;
static cl::opt<bool>
VerifySpills("verify-spills", cl::desc("Verify after each spill/split"));
namespace { namespace {
class InlineSpiller : public Spiller { class InlineSpiller : public Spiller {
MachineFunctionPass &pass_; MachineFunctionPass &pass_;
@ -337,6 +341,8 @@ void InlineSpiller::spill(LiveInterval *li,
SmallVectorImpl<LiveInterval*> &spillIs) { SmallVectorImpl<LiveInterval*> &spillIs) {
LiveRangeEdit edit(*li, newIntervals, spillIs); LiveRangeEdit edit(*li, newIntervals, spillIs);
spill(edit); spill(edit);
if (VerifySpills)
mf_.verify(&pass_);
} }
void InlineSpiller::spill(LiveRangeEdit &edit) { void InlineSpiller::spill(LiveRangeEdit &edit) {