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Fix test for small inlinable constants.

--- a/mi/fold.c

+++ b/mi/fold.c

@@ -47,7 +47,16 @@

 static int issmallconst(Node *dcl)

 {

-    return dcl->decl.isconst && exprop(dcl->decl.init) == Olit;

+    Type *t;

+

+    if (!dcl->decl.isconst)

+        return 0;

+    if (!dcl->decl.init)

+        return 0;

+    t = tybase(exprtype(dcl->decl.init));

+    if (t->type <= Tyfloat64)

+        return 1;

+    return 0;

 }

 Node *fold(Node *n, int foldvar)

--- a/parse/types.def

+++ b/parse/types.def

@@ -25,6 +25,7 @@

 /*end integer types*/

 Ty(Tyfloat32, "float32")

 Ty(Tyfloat64, "float64")

+/* end primitive types */

 Ty(Tyvalist, NULL)

 /* end atomic types */