diff options
Diffstat (limited to 'llvm/lib/CodeGen/Passes.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/Passes.cpp | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/Passes.cpp b/llvm/lib/CodeGen/Passes.cpp index 4cd86e66c0e..59b96eb37e7 100644 --- a/llvm/lib/CodeGen/Passes.cpp +++ b/llvm/lib/CodeGen/Passes.cpp @@ -72,6 +72,10 @@ static cl::opt<bool> DisableCopyProp("disable-copyprop", cl::Hidden, cl::desc("Disable Copy Propagation pass")); static cl::opt<bool> DisablePartialLibcallInlining("disable-partial-libcall-inlining", cl::Hidden, cl::desc("Disable Partial Libcall Inlining")); +static cl::opt<bool> EnableImplicitNullChecks( + "enable-implicit-null-checks", + cl::desc("Fold null checks into faulting memory operations"), + cl::init(false)); static cl::opt<bool> PrintLSR("print-lsr-output", cl::Hidden, cl::desc("Print LLVM IR produced by the loop-reduce pass")); static cl::opt<bool> PrintISelInput("print-isel-input", cl::Hidden, @@ -543,6 +547,9 @@ void TargetPassConfig::addMachinePasses() { // Run pre-sched2 passes. addPreSched2(); + if (EnableImplicitNullChecks) + addPass(&ImplicitNullChecksID); + // Second pass scheduler. if (getOptLevel() != CodeGenOpt::None) { if (MISchedPostRA) |
