re PR target/90552 (attribute((optimize(3))) not overriding -Os)

	PR target/90552
	* config/i386/i386.c (gen_rtx_cost):
	Use ix86_tune_cost instead of ix86_cost.

testsuite/ChangeLog:

	PR target/90552
	* gcc.target/i386/pr90552.c: New test.

From-SVN: r271576

gcc/ChangeLog

+2019-05-23  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/90552
+	* config/i386/i386.c (gen_rtx_cost):
+	Use ix86_tune_cost instead of ix86_cost.
+
 2019-05-23  Bill Schmidt  <wschmidt@linux.ibm.com>
 	    Michael Meissner  <meissner@linux.ibm.com>
 	    Segher Boessenkool  <segher@kernel.crashing.org>

gcc/config/i386/i386.c

@@ -19124,7 +19124,8 @@ ix86_rtx_costs (rtx x, machine_mode mode, int outer_code_i, int opno,
   rtx mask;
   enum rtx_code code = GET_CODE (x);
   enum rtx_code outer_code = (enum rtx_code) outer_code_i;
-  const struct processor_costs *cost = speed ? ix86_cost : &ix86_size_cost;
+  const struct processor_costs *cost
+    = speed ? ix86_tune_cost : &ix86_size_cost;
   int src_cost;
 
   switch (code)

gcc/testsuite/ChangeLog

+2019-05-23  Uroš Bizjak  <ubizjak@gmail.com>
+
+	PR target/90552
+	* gcc.target/i386/pr90552.c: New test.
+
 2019-05-23  Mark Eggleston  <mark.eggleston@codethink.com>
 
 	* gfortran.dg/fmt_f_default_field_width_1.f90: Hide REAL(16) behind

gcc/testsuite/gcc.target/i386/pr90552.c

+/* PR target/90552 *
+/* { dg-do compile } */
+/* { dg-options "-Os" } */
+
+__attribute__((optimize(2)))
+int foo (int x)
+{
+  return x / 3;
+}
+
+/* { dg-final { scan-assembler-not "idiv" } } */