Basic constant propagation.

2013-12-07 05:52:51 -08:00
parent 57432d5996
commit 3b268f07ef
10 changed files with 584 additions and 147 deletions
--- a/src/alloy/frontend/ppc/ppc_emit_alu.cc
+++ b/src/alloy/frontend/ppc/ppc_emit_alu.cc
@@ -986,7 +986,7 @@ XEEMITTER(rlwimix,      0x50000000, M  )(PPCFunctionBuilder& f, InstrData& i) {
  }
  v = f.ZeroExtend(v, INT64_TYPE);
  Value* ra = f.LoadGPR(i.M.RA);
-  v = f.Or(v, f.And(f.LoadGPR(i.M.RA), f.LoadConstant(~m)));
+  v = f.Or(v, f.And(f.LoadGPR(i.M.RA), f.LoadConstant((~(uint64_t)m))));
  if (i.M.Rc) {
    f.UpdateCR(0, v);
  }