py2llvm: support 'neg' on VInt

2014-09-08 18:25:04 +08:00 · 2014-09-08 18:25:04 +08:00 · 1133308dd5
parent 3d8159ceb5
commit 1133308dd5
1 changed files with 9 additions and 0 deletions
--- a/artiq/py2llvm/base_types.py
+++ b/artiq/py2llvm/base_types.py
@ -74,6 +74,15 @@ class VInt(VGeneric):
    def o_not(self, builder):
        return self.o_bool(builder, True)

+    def o_neg(self, builder):
+        r = VInt(self.nbits)
+        if builder is not None:
+            r.set_ssa_value(
+                builder, builder.mul(
+                    self.get_ssa_value(builder),
+                    lc.Constant.int(self.get_llvm_type(), -1)))
+        return r
+
    def o_intx(self, target_bits, builder):
        r = VInt(target_bits)
        if builder is not None: