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authorCoprDistGit <infra@openeuler.org>2025-02-28 10:03:49 +0000
committerCoprDistGit <infra@openeuler.org>2025-02-28 10:03:49 +0000
commit73127104a245052cd5cf29cdaaca3e5c32c70348 (patch)
tree8e28b63e478c43c252f18b49836dff7313affe54 /0115-Backport-SME-aarch64-Remove-AARCH64_FL_RCPC8_4-PR107.patch
parent49d3feaf4665cdb07576fc1a2382a4d82a612d35 (diff)
automatic import of gccopeneuler24.03_LTS_SP1
Diffstat (limited to '0115-Backport-SME-aarch64-Remove-AARCH64_FL_RCPC8_4-PR107.patch')
-rw-r--r--0115-Backport-SME-aarch64-Remove-AARCH64_FL_RCPC8_4-PR107.patch83
1 files changed, 83 insertions, 0 deletions
diff --git a/0115-Backport-SME-aarch64-Remove-AARCH64_FL_RCPC8_4-PR107.patch b/0115-Backport-SME-aarch64-Remove-AARCH64_FL_RCPC8_4-PR107.patch
new file mode 100644
index 0000000..f65a31b
--- /dev/null
+++ b/0115-Backport-SME-aarch64-Remove-AARCH64_FL_RCPC8_4-PR107.patch
@@ -0,0 +1,83 @@
+From f6137d5be2761caea75dcc1c98d941ceec161456 Mon Sep 17 00:00:00 2001
+From: Richard Sandiford <richard.sandiford@arm.com>
+Date: Thu, 29 Sep 2022 11:32:53 +0100
+Subject: [PATCH 016/157] [Backport][SME] aarch64: Remove AARCH64_FL_RCPC8_4
+ [PR107025]
+
+Reference: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=0f244d848cffeda68f0eb4c5bb9c7e629bf2e957
+
+AARCH64_FL_RCPC8_4 is an odd-one-out in that it has no associated
+entry in aarch64-option-extensions.def. This means that, although
+it is internally separated from AARCH64_FL_V8_4A, there is no
+mechanism for turning it on and off individually, independently
+of armv8.4-a.
+
+The only place that the flag was used independently was in the
+entry for thunderx3t110, which enabled it alongside V8_3A.
+As noted in PR107025, this means that any use of the extension
+will fail to assemble.
+
+In the PR trail, Andrew suggested removing the core entry.
+That might be best long-term, but since the barrier for removing
+command-line options without a deprecation period is very high,
+this patch instead just drops the flag from the core entry.
+We'll still produce correct code.
+
+gcc/
+ PR target/107025
+ * config/aarch64/aarch64.h (oAARCH64_FL_RCPC8_4): Delete.
+ (AARCH64_FL_FOR_V8_4A): Update accordingly.
+ (AARCH64_ISA_RCPC8_4): Use AARCH64_FL_V8_4A directly.
+ * config/aarch64/aarch64-cores.def (thunderx3t110): Remove
+ AARCH64_FL_RCPC8_4.
+---
+ gcc/config/aarch64/aarch64-cores.def | 2 +-
+ gcc/config/aarch64/aarch64.h | 5 ++---
+ 2 files changed, 3 insertions(+), 4 deletions(-)
+
+diff --git a/gcc/config/aarch64/aarch64-cores.def b/gcc/config/aarch64/aarch64-cores.def
+index 008b0b8c1..cf500d0a9 100644
+--- a/gcc/config/aarch64/aarch64-cores.def
++++ b/gcc/config/aarch64/aarch64-cores.def
+@@ -133,7 +133,7 @@ AARCH64_CORE("tsv110", tsv110, tsv110, V8_2A, AARCH64_FL_CRYPTO | AARCH64_FL_F
+ /* ARMv8.3-A Architecture Processors. */
+
+ /* Marvell cores (TX3). */
+-AARCH64_CORE("thunderx3t110", thunderx3t110, thunderx3t110, V8_3A, AARCH64_FL_CRYPTO | AARCH64_FL_RCPC | AARCH64_FL_SM4 | AARCH64_FL_SHA3 | AARCH64_FL_F16FML | AARCH64_FL_RCPC8_4, thunderx3t110, 0x43, 0x0b8, 0x0a)
++AARCH64_CORE("thunderx3t110", thunderx3t110, thunderx3t110, V8_3A, AARCH64_FL_CRYPTO | AARCH64_FL_RCPC | AARCH64_FL_SM4 | AARCH64_FL_SHA3 | AARCH64_FL_F16FML, thunderx3t110, 0x43, 0x0b8, 0x0a)
+
+ /* ARMv8.4-A Architecture Processors. */
+
+diff --git a/gcc/config/aarch64/aarch64.h b/gcc/config/aarch64/aarch64.h
+index 918a14193..f4e0cd148 100644
+--- a/gcc/config/aarch64/aarch64.h
++++ b/gcc/config/aarch64/aarch64.h
+@@ -173,7 +173,6 @@
+ #define AARCH64_FL_SM4 (1 << 17) /* Has ARMv8.4-A SM3 and SM4. */
+ #define AARCH64_FL_SHA3 (1 << 18) /* Has ARMv8.4-a SHA3 and SHA512. */
+ #define AARCH64_FL_F16FML (1 << 19) /* Has ARMv8.4-a FP16 extensions. */
+-#define AARCH64_FL_RCPC8_4 (1 << 20) /* Has ARMv8.4-a RCPC extensions. */
+
+ /* Statistical Profiling extensions. */
+ #define AARCH64_FL_PROFILE (1 << 21)
+@@ -265,7 +264,7 @@
+ (AARCH64_FL_FOR_V8_2A | AARCH64_FL_V8_3A | AARCH64_FL_PAUTH)
+ #define AARCH64_FL_FOR_V8_4A \
+ (AARCH64_FL_FOR_V8_3A | AARCH64_FL_V8_4A | AARCH64_FL_F16FML \
+- | AARCH64_FL_DOTPROD | AARCH64_FL_RCPC8_4 | AARCH64_FL_FLAGM)
++ | AARCH64_FL_DOTPROD | AARCH64_FL_FLAGM)
+ #define AARCH64_FL_FOR_V8_5A \
+ (AARCH64_FL_FOR_V8_4A | AARCH64_FL_V8_5A \
+ | AARCH64_FL_SB | AARCH64_FL_SSBS | AARCH64_FL_PREDRES)
+@@ -313,7 +312,7 @@
+ #define AARCH64_ISA_SM4 (aarch64_isa_flags & AARCH64_FL_SM4)
+ #define AARCH64_ISA_SHA3 (aarch64_isa_flags & AARCH64_FL_SHA3)
+ #define AARCH64_ISA_F16FML (aarch64_isa_flags & AARCH64_FL_F16FML)
+-#define AARCH64_ISA_RCPC8_4 (aarch64_isa_flags & AARCH64_FL_RCPC8_4)
++#define AARCH64_ISA_RCPC8_4 (aarch64_isa_flags & AARCH64_FL_V8_4A)
+ #define AARCH64_ISA_RNG (aarch64_isa_flags & AARCH64_FL_RNG)
+ #define AARCH64_ISA_V8_5A (aarch64_isa_flags & AARCH64_FL_V8_5A)
+ #define AARCH64_ISA_TME (aarch64_isa_flags & AARCH64_FL_TME)
+--
+2.33.0
+