bug 17752, check target architecture for 64bit-builtins

1 files changed, 13 insertions, 7 deletions

diff --git a/powerpc/Asmexpand.ml b/powerpc/Asmexpand.ml
index b50065f7..ba63bb13 100644
--- a/powerpc/Asmexpand.ml
+++ b/powerpc/Asmexpand.ml
@@ -507,16 +507,22 @@ let expand_builtin_inline name args res =
       raise (Error "the first argument of __builtin_set_spr must be a constant")
   (* Special registers in 32bit hybrid mode *)
   | "__builtin_get_spr64", [BA_int n], BR_splitlong(BR(IR rh), BR(IR rl)) ->
-      emit (Pmfspr(rl, n));
-      emit (Prldicl(rh, rl, _32, _32));
-      emit (Prldicl(rl, rl, _0, _32))
+      if Archi.ppc64 then begin
+        emit (Pmfspr(rl, n));
+        emit (Prldicl(rh, rl, _32, _32));
+        emit (Prldicl(rl, rl, _0, _32))
+      end else
+        raise (Error "__builtin_get_spr64 is only supported for PPC64 targets")
   | "__builtin_get_spr64", _, _ ->
       raise (Error "the argument of __builtin_get_spr64 must be a constant")
   | "__builtin_set_spr64", [BA_int n; BA_splitlong(BA(IR ah), BA(IR al))], _ ->
-    emit (Prldicr(GPR10, ah, _32, _31));
-    emit (Prldicl(al, al, _0, _32));
-    emit (Pori(GPR10, al, Cint _0));
-    emit (Pmtspr(n, GPR10))
+      if Archi.ppc64 then begin
+        emit (Prldicr(GPR10, ah, _32, _31));
+        emit (Prldicl(al, al, _0, _32));
+        emit (Pori(GPR10, al, Cint _0));
+        emit (Pmtspr(n, GPR10))
+      end else
+        raise (Error "__builtin_set_spr64 is only supported for PPC64 targets")
   | "__builtin_set_spr64", _, _ ->
       raise (Error "the first argument of __builtin_set_spr64 must be a constant")
   (* Move registers *)