Power10: Add missing IEEE 128-bit XSCMP* built-in mappings.
This patch is a simplification of earlier patches to fix the built-in functions
that introduced new power10 IEEE 128-bit instructions. Some of the built-in
functions were already handled, but the scalar_cmp_exp_qp_gt, etc. functions
were not handled. This shows up in the float128-cmp2-runnable.c test when long
double uses the IEEE 128-bit representation.
I had done the previous patches fairly quickly, forgetting about the switch
inside of rs6000_expand_builtin in rs6000-call.c that switches between KF and
TF built-in functions without having to add overloaded function names. This
patch uses that simpler method.
The previous patches were at:
Date: Thu, 24 Sep 2020 16:42:59 -0400
Subject: [PATCH 7/9] PowerPC: Update IEEE 128-bit built-in functions to work if
long double is IEEE 128-bit.
Message-ID: <20200924204259.gg31...@ibm-toto.the-meissners.org>
Date: Thu, 22 Oct 2020 18:03:46 -0400
Subject: PowerPC: Map IEEE 128-bit long double built-in functions
Message-ID: <20201022220346.ga8...@ibm-toto.the-meissners.org>
I have built two sets of bootstrap compilers on a little endian power9 server
system running Linux. One compiler used the default IBM IEEE 128-bit long
double support and the other used IEEE 128-bit for the long double. This patch
fixes the failure in the float128-cmp2-runnable.c test, and it adds no other
regressions. Can I check this patch into the master branch?
2020-11-18 Michael Meissner <meiss...@linux.ibm.com>
* config/rs6000/rs6000-call.c (rs6000_expand_builtin): Add missing
XSCMP* cases for IEEE 128-bit long double.
---
gcc/config/rs6000/rs6000-call.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/gcc/config/rs6000/rs6000-call.c b/gcc/config/rs6000/rs6000-call.c
index 8294e22fb85..1fdb39f15c0 100644
--- a/gcc/config/rs6000/rs6000-call.c
+++ b/gcc/config/rs6000/rs6000-call.c
@@ -12803,6 +12803,22 @@ rs6000_expand_builtin (tree exp, rtx target, rtx
subtarget ATTRIBUTE_UNUSED,
case CODE_FOR_xsiexpqp_kf: icode = CODE_FOR_xsiexpqp_tf; break;
case CODE_FOR_xsiexpqpf_kf: icode = CODE_FOR_xsiexpqpf_tf; break;
case CODE_FOR_xststdcqp_kf: icode = CODE_FOR_xststdcqp_tf; break;
+
+ case CODE_FOR_xscmpexpqp_eq_kf:
+ icode = CODE_FOR_xscmpexpqp_eq_tf;
+ break;
+
+ case CODE_FOR_xscmpexpqp_lt_kf:
+ icode = CODE_FOR_xscmpexpqp_lt_tf;
+ break;
+
+ case CODE_FOR_xscmpexpqp_gt_kf:
+ icode = CODE_FOR_xscmpexpqp_gt_tf;
+ break;
+
+ case CODE_FOR_xscmpexpqp_unordered_kf:
+ icode = CODE_FOR_xscmpexpqp_unordered_tf;
+ break;
}
if (TARGET_DEBUG_BUILTIN)
--
2.22.0
--
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meiss...@linux.ibm.com, phone: +1 (978) 899-4797
