Add a flag to disable jump table generation (all
switches use the binary search algorithm) for
environments that don't support it. PPC64 JIT
is such an environment; turn the flag on for that.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@54248 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index 0764968..600a120 100644
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -39,6 +39,7 @@
unsigned StackAlignment;
bool RealignStack;
bool VerboseAsm;
+ bool DisableJumpTables;
}
static cl::opt<bool, true> PrintCode("print-machineinstrs",
@@ -156,6 +157,11 @@
cl::location(VerboseAsm),
cl::init(false));
+static cl::opt<bool, true>
+DisableSwitchTables(cl::Hidden, "disable-jump-tables",
+ cl::desc("Do not generate jump tables."),
+ cl::location(DisableJumpTables),
+ cl::init(false));
//---------------------------------------------------------------------------
// TargetMachine Class