24601f9e37
Sync patch from openeuler/gcc - 20230829 part 2 (cherry picked from commit 609cef8ac6ca4de64bed245700975082853ad49a)
45 lines
1.6 KiB
Diff
45 lines
1.6 KiB
Diff
From 9dc6d315ba350c9113f486ec897217a82838fb73 Mon Sep 17 00:00:00 2001
|
|
From: Xiong Zhou <xiongzhou4@huawei.com>
|
|
Date: Mon, 7 Aug 2023 14:44:56 +0800
|
|
Subject: [PATCH 1/2] [PGO kernel] Add fkernel-pgo option to support PGO kernel
|
|
compilation.
|
|
|
|
---
|
|
gcc/common.opt | 4 ++++
|
|
gcc/tree-profile.cc | 4 +++-
|
|
2 files changed, 7 insertions(+), 1 deletion(-)
|
|
|
|
diff --git a/gcc/common.opt b/gcc/common.opt
|
|
index e365a48bc..bd3b7dcb1 100644
|
|
--- a/gcc/common.opt
|
|
+++ b/gcc/common.opt
|
|
@@ -2363,6 +2363,10 @@ fprofile-generate=
|
|
Common Joined RejectNegative
|
|
Enable common options for generating profile info for profile feedback directed optimizations, and set -fprofile-dir=.
|
|
|
|
+fkernel-pgo
|
|
+Common Var(flag_kernel_pgo) Optimization Init(0)
|
|
+Disable TLS setting of instrumentation variables to support PGO kernel compilation in -fprofile-generate, as kernel does not support TLS.
|
|
+
|
|
fprofile-info-section
|
|
Common RejectNegative
|
|
Register the profile information in the .gcov_info section instead of using a constructor/destructor.
|
|
diff --git a/gcc/tree-profile.cc b/gcc/tree-profile.cc
|
|
index 6d40401f8..e7646f1a1 100644
|
|
--- a/gcc/tree-profile.cc
|
|
+++ b/gcc/tree-profile.cc
|
|
@@ -108,7 +108,9 @@ init_ic_make_global_vars (void)
|
|
DECL_ARTIFICIAL (ic_tuple_var) = 1;
|
|
DECL_INITIAL (ic_tuple_var) = NULL;
|
|
DECL_EXTERNAL (ic_tuple_var) = 1;
|
|
- if (targetm.have_tls)
|
|
+ /* Disable TLS setting when compiling kernel in -fprofile-generate,
|
|
+ as kernel does not support TLS. */
|
|
+ if (targetm.have_tls && !flag_kernel_pgo)
|
|
set_decl_tls_model (ic_tuple_var, decl_default_tls_model (ic_tuple_var));
|
|
}
|
|
|
|
--
|
|
2.33.0
|
|
|