[gcc(refs/users/marxin/heads/marxin-gcc-benchmark-branch)] Add ppc_ieee128_ok target-supports proc

[Martin Liska]

https://gcc.gnu.org/g:ad21e0072e20b7c8e4d7af5ca78f24cc6ae407d1

commit ad21e0072e20b7c8e4d7af5ca78f24cc6ae407d1
Author: Will Schmidt <will_schmidt@vnet.ibm.com>
Date:   Tue Feb 11 14:01:59 2020 -0600

    Add ppc_ieee128_ok target-supports proc
    
      Add a target_supports entry to check that the __ieee128 keyword
    is understood by the target.
    Also add a dg-requires check to the existing pr92796 testcase.
    
        [testsuite]
            * lib/target-supports.exp (check_effective_target_ppc_ieee128_ok): New.
            * gcc.target/powerpc/pr92796.c: Add a require-effective-target
            statement for ppc_ieee128_ok.

Diff:
---
 gcc/testsuite/ChangeLog                    |  6 ++++++
 gcc/testsuite/gcc.target/powerpc/pr92796.c |  1 +
 gcc/testsuite/lib/target-supports.exp      | 19 +++++++++++++++++++
 3 files changed, 26 insertions(+)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4f591539a95..8120020e315 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,9 @@
+2020-02-11  Will Schmidt  <will_schmidt@vnet.ibm.com>
+
+	* lib/target-supports.exp (check_effective_target_ppc_ieee128_ok): New.
+	* gcc.target/powerpc/pr92796.c: Add a require-effective-target
+	statement for ppc_ieee128_ok.
+
 2020-02-11  David Malcolm  <dmalcolm@redhat.com>
 
 	PR analyzer/93374
diff --git a/gcc/testsuite/gcc.target/powerpc/pr92796.c b/gcc/testsuite/gcc.target/powerpc/pr92796.c
index aa15b2d07e5..da4b6a47a6a 100644
--- a/gcc/testsuite/gcc.target/powerpc/pr92796.c
+++ b/gcc/testsuite/gcc.target/powerpc/pr92796.c
@@ -1,5 +1,6 @@
 /* { dg-do compile } */
 /* { dg-options "-O2 -fstack-protector-strong -mcpu=power8" } */
+/* { dg-require-effective-target ppc_ieee128_ok } */
 
 typedef union
 {
diff --git a/gcc/testsuite/lib/target-supports.exp b/gcc/testsuite/lib/target-supports.exp
index d3b2798df3e..fb177c54aa8 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -2250,6 +2250,25 @@ proc check_ppc_float128_hw_available { } {
     }]
 }
 
+# See if the __ieee128 keyword is understood.
+proc check_effective_target_ppc_ieee128_ok { } {
+    return [check_cached_effective_target ppc_ieee128_ok {
+	# disable on AIX.
+	if { [istarget *-*-aix*] } {
+	    expr 0
+	} else {
+	    set options "-mfloat128"
+	    check_runtime_nocache ppc_ieee128_ok {
+		int main()
+		{
+		  __ieee128 a;
+		  return 0;
+		}
+	    } $options
+	}
+    }]
+}
+
 # Return 1 if the target supports executing VSX instructions, 0
 # otherwise.  Cache the result.