On 09/26/2017 01:57 PM, Rainer Orth wrote:
> Hi Andreas,
>
>> We don't have a 64 bit vector integer multiply on z. Add a specific
>> check for that.
>>
>> 2017-09-26 Andreas Krebbel <kreb...@linux.vnet.ibm.com>
>>
>> * gcc.dg/vect/pr60656.c: Check vect_mult_long.
>> * lib/target-supports.exp (check_effective_target_vect_mult_long):
>> New proc.
>
> as usual, this and the other new effective-target keywords need
> documenting in sourcebuild.texi.
>
> Rainer
>
Ok.
-Andreas-
pr60656.c: New target check: vect_mult_long
We don't have a 64 bit vector integer multiply on z. Add a specific
check for that.
gcc/ChangeLog:
2017-09-26 Andreas Krebbel <kreb...@linux.vnet.ibm.com>
* doc/sourcebuild.texi: Document vect_mult_long.
gcc/testsuite/ChangeLog:
2017-09-26 Andreas Krebbel <kreb...@linux.vnet.ibm.com>
* gcc.dg/vect/pr60656.c: Check vect_mult_long.
* lib/target-supports.exp (check_effective_target_vect_mult_long):
New proc.
diff --git a/gcc/doc/sourcebuild.texi b/gcc/doc/sourcebuild.texi
index 9901c94..307c726 100644
--- a/gcc/doc/sourcebuild.texi
+++ b/gcc/doc/sourcebuild.texi
@@ -1467,6 +1467,10 @@ into @code{int} results, or can promote (unpack) from
@code{short} to
Target supports a vector widening multiplication of @code{int} operands
into @code{long} results.
+@item vect_mult_long
+Target supports a vector multiplication of @code{long} operands into
+@code{long} results.
+
@item vect_sdot_qi
Target supports a vector dot-product of @code{signed char}.
diff --git a/gcc/testsuite/gcc.dg/vect/pr60656.c
b/gcc/testsuite/gcc.dg/vect/pr60656.c
index d9e30bb..f44269a 100644
--- a/gcc/testsuite/gcc.dg/vect/pr60656.c
+++ b/gcc/testsuite/gcc.dg/vect/pr60656.c
@@ -43,4 +43,5 @@ int main()
return 0;
}
-/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target
vect_widen_mult_si_to_di_pattern } } } */
+/* P * P * P requires a widening multiplication first as well as a
longxlong->long after that. */
+/* { dg-final { scan-tree-dump-times "vectorized 1 loops" 1 "vect" { target {
vect_widen_mult_si_to_di_pattern && vect_mult_long } } } } */
diff --git a/gcc/testsuite/lib/target-supports.exp
b/gcc/testsuite/lib/target-supports.exp
index b45a19e..7fdfbbb 100644
--- a/gcc/testsuite/lib/target-supports.exp
+++ b/gcc/testsuite/lib/target-supports.exp
@@ -5166,6 +5166,30 @@ proc check_effective_target_vect_long { } {
return $answer
}
+# Return 1 if the target supports hardware vector multiplication of
+# long operands with a long result, 0 otherwise.
+#
+# This can change for different subtargets so do not cache the result.
+
+proc check_effective_target_vect_mult_long { } {
+ if { [istarget i?86-*-*] || [istarget x86_64-*-*]
+ || (([istarget powerpc*-*-*]
+ && ![istarget powerpc-*-linux*paired*])
+ && [check_effective_target_ilp32])
+ || [is-effective-target arm_neon]
+ || ([istarget sparc*-*-*] && [check_effective_target_ilp32])
+ || [istarget aarch64*-*-*]
+ || ([istarget mips*-*-*]
+ && [et-is-effective-target mips_msa]) } {
+ set answer 1
+ } else {
+ set answer 0
+ }
+
+ verbose "check_effective_target_vect_mult_long: returning $answer" 2
+ return $answer
+}
+
# Return 1 if the target supports hardware vectors of float, 0 otherwise.
#
# This won't change for different subtargets so cache the result.
--
2.9.1
