Add a new (hidden) option that is useful for profiling.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@11218 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86TargetMachine.cpp b/lib/Target/X86/X86TargetMachine.cpp
index 466ef2f..83a390e 100644
--- a/lib/Target/X86/X86TargetMachine.cpp
+++ b/lib/Target/X86/X86TargetMachine.cpp
@@ -32,6 +32,9 @@
cl::opt<bool> NoSSAPeephole("disable-ssa-peephole", cl::init(true),
cl::desc("Disable the ssa-based peephole optimizer "
"(defaults to disabled)"));
+ cl::opt<bool> DisableOutput("disable-x86-llc-output", cl::Hidden,
+ cl::desc("Disable the X86 asm printer, for use "
+ "when profiling the code generator."));
}
// allocateX86TargetMachine - Allocate and return a subclass of TargetMachine
@@ -98,7 +101,8 @@
if (PrintCode) // Print the register-allocated code
PM.add(createX86CodePrinterPass(std::cerr, *this));
- PM.add(createX86CodePrinterPass(Out, *this));
+ if (!DisableOutput)
+ PM.add(createX86CodePrinterPass(Out, *this));
// Delete machine code for this function
PM.add(createMachineCodeDeleter());