From 5ece83588dd1475538ee5e8655d0336c37103789 Mon Sep 17 00:00:00 2001
From: lzy <liaozhiyu2@huawei.com>
Date: Fri, 8 Nov 2024 17:40:41 +0800
Subject: [PATCH] Handle GNU options -ftree-loop-if-convert

---
 clang/include/clang/Driver/Options.td | 15 +++++++++++++++
 clang/test/Driver/clang_f_opts.c      |  7 +++++++
 2 files changed, 22 insertions(+)

diff --git a/clang/include/clang/Driver/Options.td b/clang/include/clang/Driver/Options.td
index 296f9d47636a..93527f464ace 100644
--- a/clang/include/clang/Driver/Options.td
+++ b/clang/include/clang/Driver/Options.td
@@ -5178,6 +5178,11 @@ multiclass BooleanFFlag<string name> {
   def fno_#NAME : Flag<["-"], "fno-"#name>;
 }
 
+multiclass BooleanICompatibilityFlag<string name> {
+  def NAME : Flag<["-"], name>;
+  def no_#NAME : Flag<["-"], "no-"#name>;
+}
+
 multiclass FlangIgnoredDiagOpt<string name> {
   def unsupported_warning_w#NAME : Flag<["-", "--"], "W"#name>, Group<flang_ignored_w_Group>;
 }
@@ -7685,6 +7690,16 @@ def Mqq_EQ : Joined<["-"], "Mqq,">, Group<pgi_fortran_Group>;
 def Hqq_EQ : Joined<["-"], "Hqq,">, Group<pgi_fortran_Group>;
 def Wh_EQ : Joined<["-"], "Wh,">, Group<pgi_fortran_Group>;
 #endif
+
+#ifdef BUILD_FOR_OPENEULER
+// Ignored GNU optimization
+// Handle all -ftree-/-fno-tree- options since it's only for GNU
+def ftree_all_option : Joined<["-"], "ftree">,
+  Group<clang_ignored_gcc_optimization_f_Group>;
+def fno_tree_all_option : Joined<["-"], "fno-tree">,
+  Group<clang_ignored_gcc_optimization_f_Group>;
+#endif
+
 def hlsl_entrypoint : Option<["-"], "hlsl-entry", KIND_SEPARATE>,
                       Group<dxc_Group>,
                       Flags<[CC1Option]>,
diff --git a/clang/test/Driver/clang_f_opts.c b/clang/test/Driver/clang_f_opts.c
index 3cda11ef476d..2fdb661ac724 100644
--- a/clang/test/Driver/clang_f_opts.c
+++ b/clang/test/Driver/clang_f_opts.c
@@ -610,3 +610,10 @@
 // CHECK-INT-OBJEMITTER-NOT: unsupported option '-fintegrated-objemitter' for target
 // RUN: %clang -### -fno-integrated-objemitter -target x86_64 %s 2>&1 | FileCheck -check-prefix=CHECK-NOINT-OBJEMITTER %s
 // CHECK-NOINT-OBJEMITTER: unsupported option '-fno-integrated-objemitter' for target
+
+#ifdef BUILD_FOR_OPENEULER
+// RUN: %clang -###
+// RUN: -ftree-loop-if-convert
+// RUN: %s 2>&1 | FileCheck -check-prefix=CHECK-WARNING %s
+// CHECK-WARNING-DAG: GNU optimization flag '-ftree-loop-if-convert' is not supported and ignored.
+#endif
-- 
Gitee