Hello,
In GCC testsuite the MVE scalar shift execution tests
(mve_scalar_shifts[1-4].c) are failings
because of executing them on target hardware which doesn't support MVE
instructions. This patch
restricts those tests to execute only on target hardware that support MVE
instructions.
Regression tested on arm-none-eabi and found no regressions.
Ok for master? Ok for GCC-10 branch?
Thanks,
Srinath.
2020-06-18 Srinath Parvathaneni <srinath.parvathan...@arm.com>
gcc/
* doc/sourcebuild.texi (arm_v8_1m_mve_fp_ok): Add item.
(arm_mve_hw): Likewise.
gcc/testsuite/
* gcc.target/arm/mve/mve.exp (check_effective_target_arm_mve_hw): Check
availability of hardware supporting MVE instructions.
* lib/target-supports.exp (check_effective_target_arm_mve_hw): Define.
############### Attachment also inlined for ease of reply ###############
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index
e5554c4666eb217844598352ced5a9597652f07c..a12af822443ad41afba816ed640d80d182859239
100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -1925,6 +1925,15 @@ ARM target supports options to generate instructions
from ARMv8.1-M with
the M-Profile Vector Extension (MVE). Some multilibs may be incompatible
with these options.
+@item arm_v8_1m_mve_fp_ok
+ARM target supports options to generate instructions from ARMv8.1-M with
+the Half-precision floating-point instructions (HP), Floating-point Extension
+(FP) along with M-Profile Vector Extension (MVE). Some multilibs may be
+incompatible with these options.
+
+@item arm_mve_hw
+Test system supports executing MVE instructions.
+
@item arm_v8m_main_cde
ARM target supports options to generate instructions from ARMv8-M with
the Custom Datapath Extension (CDE). Some multilibs may be incompatible
diff --git a/gcc/testsuite/gcc.target/arm/mve/mve.exp
b/gcc/testsuite/gcc.target/arm/mve/mve.exp
index
e84cb068940e2cb4ed7bbdd51b14d52cec3e323f..aaa3b78b2a9400070d0ca33cb0e98bd0fad7d408
100644
--- a/gcc/testsuite/gcc.target/arm/mve/mve.exp
+++ b/gcc/testsuite/gcc.target/arm/mve/mve.exp
@@ -24,6 +24,11 @@ if ![istarget arm*-*-*] then {
# Load support procs.
load_lib gcc-dg.exp
+# Exit immediately if the target does not support MVE instructions.
+if ![check_effective_target_arm_mve_hw] then {
+ return
+}
+
# If a testcase doesn't have special options, use these.
global DEFAULT_CFLAGS
if ![info exists DEFAULT_CFLAGS] then {
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index
862a0735b49582f7f35a9a4009f5752cf8f7e3ba..ab0ee32fc911622b4716c272df4e656698b81a70
100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -4671,6 +4671,24 @@ proc check_effective_target_arm_cmse_ok {} {
} "-mcmse"];
}
+# Return 1 if the target supports executing MVE instructions, 0
+# otherwise.
+
+proc check_effective_target_arm_mve_hw {} {
+ return [check_runtime arm_mve_hw_available {
+ int
+ main (void)
+ {
+ long long a = 16;
+ int b = 3;
+ asm ("sqrshrl %Q1, %R1, #64, %2"
+ : "=l" (a)
+ : "0" (a), "r" (b));
+ return (a != 2);
+ }
+ } ""]
+}
+
# Return 1 if this is an ARM target where ARMv8-M Security Extensions with
# clearing instructions (clrm, vscclrm, vstr/vldr with FPCXT) is available.
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index
e5554c4666eb217844598352ced5a9597652f07c..a12af822443ad41afba816ed640d80d182859239
100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -1925,6 +1925,15 @@ ARM target supports options to generate instructions
from ARMv8.1-M with
the M-Profile Vector Extension (MVE). Some multilibs may be incompatible
with these options.
+@item arm_v8_1m_mve_fp_ok
+ARM target supports options to generate instructions from ARMv8.1-M with
+the Half-precision floating-point instructions (HP), Floating-point Extension
+(FP) along with M-Profile Vector Extension (MVE). Some multilibs may be
+incompatible with these options.
+
+@item arm_mve_hw
+Test system supports executing MVE instructions.
+
@item arm_v8m_main_cde
ARM target supports options to generate instructions from ARMv8-M with
the Custom Datapath Extension (CDE). Some multilibs may be incompatible
diff --git a/gcc/testsuite/gcc.target/arm/mve/mve.exp
b/gcc/testsuite/gcc.target/arm/mve/mve.exp
index
e84cb068940e2cb4ed7bbdd51b14d52cec3e323f..aaa3b78b2a9400070d0ca33cb0e98bd0fad7d408
100644
--- a/gcc/testsuite/gcc.target/arm/mve/mve.exp
+++ b/gcc/testsuite/gcc.target/arm/mve/mve.exp
@@ -24,6 +24,11 @@ if ![istarget arm*-*-*] then {
# Load support procs.
load_lib gcc-dg.exp
+# Exit immediately if the target does not support MVE instructions.
+if ![check_effective_target_arm_mve_hw] then {
+ return
+}
+
# If a testcase doesn't have special options, use these.
global DEFAULT_CFLAGS
if ![info exists DEFAULT_CFLAGS] then {
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index
862a0735b49582f7f35a9a4009f5752cf8f7e3ba..ab0ee32fc911622b4716c272df4e656698b81a70
100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -4671,6 +4671,24 @@ proc check_effective_target_arm_cmse_ok {} {
} "-mcmse"];
}
+# Return 1 if the target supports executing MVE instructions, 0
+# otherwise.
+
+proc check_effective_target_arm_mve_hw {} {
+ return [check_runtime arm_mve_hw_available {
+ int
+ main (void)
+ {
+ long long a = 16;
+ int b = 3;
+ asm ("sqrshrl %Q1, %R1, #64, %2"
+ : "=l" (a)
+ : "0" (a), "r" (b));
+ return (a != 2);
+ }
+ } ""]
+}
+
# Return 1 if this is an ARM target where ARMv8-M Security Extensions with
# clearing instructions (clrm, vscclrm, vstr/vldr with FPCXT) is available.
