cl::opt<bool> DisableOutput("disable-x86-llc-output", cl::Hidden,
cl::desc("Disable the X86 asm printer, for use "
"when profiling the code generator."));
+
+ cl::opt<bool> EnableX86LSR("enable-x86-lsr", cl::Hidden,
+ cl::desc("Enable the X86 loop strength reduction "
+ "pass."));
// Register the target.
RegisterTarget<X86TargetMachine> X("x86", " IA-32 (Pentium and above)");
}
if (FileType != TargetMachine::AssemblyFile &&
FileType != TargetMachine::ObjectFile) return true;
+ // Run loop strength reduction before anything else.
+ if (EnableX86LSR) PM.add(createLoopStrengthReducePass());
+
// FIXME: Implement efficient support for garbage collection intrinsics.
PM.add(createLowerGCPass());