testsuite: arm: Add -mtune to all arm_cpu_* effective targets

Fixes Linaro CI reported regression on r15-6164-gbdf75257aad2 in
https://linaro.atlassian.net/browse/GNU-1463.

gcc/testsuite/ChangeLog:

	* lib/target-supports.exp: Added corresponding -mtune= option
	for each fo the arm_cpu_* effective targets.

Signed-off-by: Torbjörn SVENSSON <torbjorn.svensson@foss.st.com>

diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index fe2970e024bfeb5726ced8594e225c1347a98382..a16e9534ccddcc100c2356279d7d830750d7948e 100644 (file)
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -5955,21 +5955,24 @@ foreach { armfunc armflag armdefs } {
 #        /* { dg-add-options arm_cpu_xscale } */
 #       /* { dg-require-effective-target arm_xscale_multilib } */
 
+# NOTE: -mcpu does not override -mtune, so to ensure the tuning is consistent 
+# for tests using these flags all entries should set -mcpu and -mtune explicitly
+
 # This table should only be used to set -mcpu= (and associated
 # flags).  See above for setting -march=.
 foreach { armfunc armflag armdefs } {
-           xscale_arm "-mcpu=xscale -mfloat-abi=soft -marm" "__XSCALE__ && !__thumb__"
-           cortex_a57 "-mcpu=cortex-a57" __ARM_ARCH_8A__
-           cortex_m0 "-mcpu=cortex-m0 -mfloat-abi=soft -mthumb" "__ARM_ARCH_6M__ && __thumb__"
-           cortex_m0_small "-mcpu=cortex-m0.small-multiply -mfloat-abi=soft -mthumb" "__ARM_ARCH_6M__ && __thumb__"
-           cortex_m0plus_small "-mcpu=cortex-m0plus.small-multiply -mfloat-abi=soft -mthumb" "__ARM_ARCH_6M__ && __thumb__"
-           cortex_m1_small "-mcpu=cortex-m1.small-multiply -mfloat-abi=soft -mthumb" "__ARM_ARCH_6M__ && __thumb__"
-           cortex_m3 "-mcpu=cortex-m3 -mfloat-abi=soft -mthumb" "__ARM_ARCH_7M__"
-           cortex_m4 "-mcpu=cortex-m4 -mfpu=auto -mthumb" "__ARM_ARCH_7EM__"
-           cortex_m4_hard "-mcpu=cortex-m4 -mfpu=auto -mfloat-abi=hard -mthumb" "__ARM_ARCH_7EM__"
-           cortex_m7 "-mcpu=cortex-m7 -mfpu=auto -mthumb" "__ARM_ARCH_7EM__"
-           cortex_m23 "-mcpu=cortex-m23 -mfloat-abi=soft -mthumb" "__ARM_ARCH_8M_BASE__  && __thumb__"
-           cortex_m55 "-mcpu=cortex-m55 -mfpu=auto -mthumb" "__ARM_ARCH_8M_MAIN__  && __thumb__"
+           xscale_arm "-mcpu=xscale -mtune=xscale -mfloat-abi=soft -marm" "__XSCALE__ && !__thumb__"
+           cortex_a57 "-mcpu=cortex-a57 -mtune=cortex-a57" __ARM_ARCH_8A__
+           cortex_m0 "-mcpu=cortex-m0 -mtune=cortex-m0 -mfloat-abi=soft -mthumb" "__ARM_ARCH_6M__ && __thumb__"
+           cortex_m0_small "-mcpu=cortex-m0.small-multiply -mtune=cortex-m0.small-multiply -mfloat-abi=soft -mthumb" "__ARM_ARCH_6M__ && __thumb__"
+           cortex_m0plus_small "-mcpu=cortex-m0plus.small-multiply -mtune=cortex-m0plus.small-multiply -mfloat-abi=soft -mthumb" "__ARM_ARCH_6M__ && __thumb__"
+           cortex_m1_small "-mcpu=cortex-m1.small-multiply -mtune=cortex-m1.small-multiply -mfloat-abi=soft -mthumb" "__ARM_ARCH_6M__ && __thumb__"
+           cortex_m3 "-mcpu=cortex-m3 -mtune=cortex-m3 -mfloat-abi=soft -mthumb" "__ARM_ARCH_7M__"
+           cortex_m4 "-mcpu=cortex-m4 -mtune=cortex-m4 -mfpu=auto -mthumb" "__ARM_ARCH_7EM__"
+           cortex_m4_hard "-mcpu=cortex-m4 -mtune=cortex-m4 -mfpu=auto -mfloat-abi=hard -mthumb" "__ARM_ARCH_7EM__"
+           cortex_m7 "-mcpu=cortex-m7 -mtune=cortex-m7 -mfpu=auto -mthumb" "__ARM_ARCH_7EM__"
+           cortex_m23 "-mcpu=cortex-m23 -mtune=cortex-m23 -mfloat-abi=soft -mthumb" "__ARM_ARCH_8M_BASE__  && __thumb__"
+           cortex_m55 "-mcpu=cortex-m55 -mtune=cortex-m55 -mfpu=auto -mthumb" "__ARM_ARCH_8M_MAIN__  && __thumb__"
        } {
     eval [string map [list FUNC $armfunc FLAG $armflag DEFS $armdefs ] {
        proc check_effective_target_arm_cpu_FUNC_ok { } {