On Thu, Jul 09, 2015 at 11:05:27AM -0700, H.J. Lu wrote:
> We reduce code size for IA MCU by adjusting variable shift costs for IA
> MCU. OK for trunk?
>
> Thanks.
>
>
> H.J.
> ---
> PR target/66821
> * config/i386/i386.c (iamcu_cost): Adjust variable shift costs.
I checked in this patch to add a testcase for PR target/66821.
H.J.
---
Index: ChangeLog
===================================================================
--- ChangeLog (revision 227132)
+++ ChangeLog (working copy)
@@ -1,5 +1,10 @@
2015-08-24 H.J. Lu <hongjiu...@intel.com>
+ PR target/66821
+ * gcc.target/i386/pr66821.c: New test.
+
+2015-08-24 H.J. Lu <hongjiu...@intel.com>
+
PR target/67329
* gcc.target/i386/pr67329.c: New test.
Index: gcc.target/i386/pr66821.c
===================================================================
--- gcc.target/i386/pr66821.c (revision 0)
+++ gcc.target/i386/pr66821.c (working copy)
@@ -0,0 +1,15 @@
+/* { dg-do compile { target ia32 } } */
+/* { dg-options "-O2 -fdump-tree-optimized -mtune=iamcu" } */
+
+void bar (void);
+
+void
+foo (int x)
+{
+ if (x != 2 && x != 3 && x != 10 && x != 11 && x != 17 && x != 18 && x != 23)
+ bar ();
+}
+
+/* Check if the tests have been folded into a bit test. */
+/* { dg-final { scan-tree-dump "(8784908|0x0*860c0c)" "optimized" } } */
+/* { dg-final { scan-tree-dump "(<<|>>)" "optimized" } } */
