[Bug middle-end/53875] calls to const functions are eliminated at -O0

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53875

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |roger at nextmovesoftware dot 
com

--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
diff --git a/gcc/calls.c b/gcc/calls.c
index 27b59f26ad3..f23dde58671 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -2735,7 +2735,8 @@ expand_call (tree exp, rtx target, int ignore)
       && (!(flags & ECF_LOOPING_CONST_OR_PURE))
       && (flags & ECF_NOTHROW)
       && (ignore || target == const0_rtx
-         || TYPE_MODE (rettype) == VOIDmode))
+         || TYPE_MODE (rettype) == VOIDmode)
+      && !optimize)
     {
       bool volatilep = false;
       tree arg;