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From eb92c185c1c71edcbd83b1c66fe4f9e7d52a98b3 Mon Sep 17 00:00:00 2001
From: Richard Sandiford <richard.sandiford@arm.com>
Date: Thu, 29 Sep 2022 11:32:56 +0100
Subject: [PATCH 024/157] [Backport][SME] aarch64: Tweak contents of
flags_on/off fields
Reference: https://gcc.gnu.org/git/?p=gcc.git;a=commit;h=bb7f43b62a58a0f0326fd3060f0bd43e6f3ef971
After previous changes, it's more convenient if the flags_on and
flags_off fields of all_extensions include the feature flag itself.
gcc/
* common/config/aarch64/aarch64-common.cc (all_extensions):
Include the feature flag in flags_on and flags_off.
(aarch64_parse_extension): Update accordingly.
(aarch64_get_extension_string_for_isa_flags): Likewise.
---
gcc/common/config/aarch64/aarch64-common.cc | 14 ++++++--------
1 file changed, 6 insertions(+), 8 deletions(-)
diff --git a/gcc/common/config/aarch64/aarch64-common.cc b/gcc/common/config/aarch64/aarch64-common.cc
index 3efa57b26..752ba5632 100644
--- a/gcc/common/config/aarch64/aarch64-common.cc
+++ b/gcc/common/config/aarch64/aarch64-common.cc
@@ -213,10 +213,8 @@ struct aarch64_option_extension
static constexpr aarch64_option_extension all_extensions[] =
{
#define AARCH64_OPT_EXTENSION(NAME, IDENT, C, D, E, F) \
- {NAME, AARCH64_FL_##IDENT, \
- feature_deps::IDENT ().explicit_on & ~AARCH64_FL_##IDENT, \
- feature_deps::get_flags_off (feature_deps::root_off_##IDENT) \
- & ~AARCH64_FL_##IDENT},
+ {NAME, AARCH64_FL_##IDENT, feature_deps::IDENT ().explicit_on, \
+ feature_deps::get_flags_off (feature_deps::root_off_##IDENT)},
#include "config/aarch64/aarch64-option-extensions.def"
{NULL, 0, 0, 0}
};
@@ -304,9 +302,9 @@ aarch64_parse_extension (const char *str, aarch64_feature_flags *isa_flags,
{
/* Add or remove the extension. */
if (adding_ext)
- *isa_flags |= (opt->flags_on | opt->flag_canonical);
+ *isa_flags |= opt->flags_on;
else
- *isa_flags &= ~(opt->flags_off | opt->flag_canonical);
+ *isa_flags &= ~opt->flags_off;
break;
}
}
@@ -380,7 +378,7 @@ aarch64_get_extension_string_for_isa_flags
if ((flags & isa_flags & (explicit_flags | ~current_flags)) == flags)
{
- current_flags |= opt.flag_canonical | opt.flags_on;
+ current_flags |= opt.flags_on;
added |= opt.flag_canonical;
}
}
@@ -395,7 +393,7 @@ aarch64_get_extension_string_for_isa_flags
for (auto &opt : all_extensions)
if (opt.flag_canonical & current_flags & ~isa_flags)
{
- current_flags &= ~(opt.flag_canonical | opt.flags_off);
+ current_flags &= ~opt.flags_off;
outstr += "+no";
outstr += opt.name;
}
--
2.33.0
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