Make first substantial checkin of my port of ARM constant islands code to Mips.
Before I just ported the shell of the pass. I've tried to keep everything
nearly identical to the ARM version. I think it will be very easy to eventually
merge these two and create a new more general pass that other targets can
use. I have some improvements I would like to make to allow pools to
be shared across functions and some other things. When I'm all done we
can think about making a more general pass. More to be ported but the
basic mechanism works now almost as good as gcc mips16.
llvm-svn: 193509
diff --git a/llvm/lib/Target/Mips/MipsSubtarget.h b/llvm/lib/Target/Mips/MipsSubtarget.h
index a3abc96..3010065 100644
--- a/llvm/lib/Target/Mips/MipsSubtarget.h
+++ b/llvm/lib/Target/Mips/MipsSubtarget.h
@@ -212,6 +212,10 @@
bool os16() const { return Os16;};
+// for now constant islands are on for the whole compilation unit but we only
+// really use them if in addition we are in mips16 mode
+//
+static bool useConstantIslands();
// Grab MipsRegInfo object
const MipsReginfo &getMReginfo() const { return MRI; }