[PATCH] [aarch64] Revert support for ARMv8.2 in tsv110

[Shaokun Zhang]

For HiSilicon's tsv110 cpu core, it supports some v8_4A features, but
some mandatory features are not implemented. Revert to ARMv8.2 that
all mandatory features are supported.

---
 gcc/ChangeLog                        | 5 +++++
 gcc/config/aarch64/aarch64-cores.def | 6 +++---
 2 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e9f5baa6557c..842876b0ae90 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2018-12-19 Shaokun Zhang  <zhangshaokun@hisilicon.com>
+
+    * config/aarch64/aarch64-cores.def (tsv110) : Revert support for ARMv8.2
+	in tsv110.
+
 2018-12-18  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR rtl-optimization/87759
diff --git a/gcc/config/aarch64/aarch64-cores.def b/gcc/config/aarch64/aarch64-cores.def
index 74be5dbf2595..20f4924e084d 100644
--- a/gcc/config/aarch64/aarch64-cores.def
+++ b/gcc/config/aarch64/aarch64-cores.def
@@ -96,10 +96,10 @@ AARCH64_CORE("cortex-a75",  cortexa75, cortexa57, 8_2A,  AARCH64_FL_FOR_ARCH8_2
 AARCH64_CORE("cortex-a76",  cortexa76, cortexa57, 8_2A,  AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD, cortexa72, 0x41, 0xd0b, -1)
 AARCH64_CORE("ares",  ares, cortexa57, 8_2A,  AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_F16 | AARCH64_FL_RCPC | AARCH64_FL_DOTPROD | AARCH64_FL_PROFILE, cortexa72, 0x41, 0xd0c, -1)
 
-/* ARMv8.4-A Architecture Processors.  */
-
 /* HiSilicon ('H') cores. */
-AARCH64_CORE("tsv110",     tsv110,    cortexa57,    8_4A, AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_CRYPTO | AARCH64_FL_F16 | AARCH64_FL_AES | AARCH64_FL_SHA2, tsv110,   0x48, 0xd01, -1)
+AARCH64_CORE("tsv110",  tsv110, cortexa57, 8_2A,  AARCH64_FL_FOR_ARCH8_2 | AARCH64_FL_CRYPTO | AARCH64_FL_F16 | AARCH64_FL_AES | AARCH64_FL_SHA2, tsv110,   0x48, 0xd01, -1)
+
+/* ARMv8.4-A Architecture Processors.  */
 
 /* Qualcomm ('Q') cores. */
 AARCH64_CORE("saphira",     saphira,    saphira,    8_4A,  AARCH64_FL_FOR_ARCH8_4 | AARCH64_FL_CRYPTO | AARCH64_FL_RCPC, saphira,   0x51, 0xC01, -1)
-- 
2.7.4