Revised to drop the cgraph change so I can self-approve the remaining patch.
Tested x86_64-pc-linux-gnu, applying to trunk.
-- 8< --
#pragma target and optimize should also apply to implicitly-generated
functions like static initialization functions and defaulted special member
functions.
The handle_optimize_attribute change is necessary to avoid regressing
g++.dg/opt/pr105306.C; maybe_clone_body creates a cgraph_node for the ~B
alias before handle_optimize_attribute, and the alias never goes through
finalize_function, so we need to adjust semantic_interposition somewhere
else.
PR c++/109753
gcc/c-family/ChangeLog:
* c-attribs.cc (handle_optimize_attribute): Set
cgraph_node::semantic_interposition.
gcc/cp/ChangeLog:
* decl.cc (start_preparsed_function): Call decl_attributes.
gcc/testsuite/ChangeLog:
* g++.dg/opt/always_inline1.C: New test.
---
gcc/c-family/c-attribs.cc | 4 ++++
gcc/cp/decl.cc | 3 +++
gcc/testsuite/g++.dg/opt/always_inline1.C | 8 ++++++++
3 files changed, 15 insertions(+)
create mode 100644 gcc/testsuite/g++.dg/opt/always_inline1.C
diff --git a/gcc/c-family/c-attribs.cc b/gcc/c-family/c-attribs.cc
index 04e39b41bdf..605469dd7dd 100644
--- a/gcc/c-family/c-attribs.cc
+++ b/gcc/c-family/c-attribs.cc
@@ -5971,6 +5971,10 @@ handle_optimize_attribute (tree *node, tree name, tree
args,
if (prev_target_node != target_node)
DECL_FUNCTION_SPECIFIC_TARGET (*node) = target_node;
+ /* Also update the cgraph_node, if it's already built. */
+ if (cgraph_node *cn = cgraph_node::get (*node))
+ cn->semantic_interposition = flag_semantic_interposition;
+
/* Restore current options. */
cl_optimization_restore (&global_options, &global_options_set,
&cur_opts);
diff --git a/gcc/cp/decl.cc b/gcc/cp/decl.cc
index a992d54dc8f..d481e1ec074 100644
--- a/gcc/cp/decl.cc
+++ b/gcc/cp/decl.cc
@@ -17832,6 +17832,9 @@ start_preparsed_function (tree decl1, tree attrs, int
flags)
doing_friend = true;
}
+ /* Adjust for #pragma target/optimize. */
+ decl_attributes (&decl1, NULL_TREE, 0);
+
if (DECL_DECLARED_INLINE_P (decl1)
&& lookup_attribute ("noinline", attrs))
warning_at (DECL_SOURCE_LOCATION (decl1), 0,
diff --git a/gcc/testsuite/g++.dg/opt/always_inline1.C
b/gcc/testsuite/g++.dg/opt/always_inline1.C
new file mode 100644
index 00000000000..a042a1cf0c6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/opt/always_inline1.C
@@ -0,0 +1,8 @@
+// PR c++/109753
+// { dg-do compile { target x86_64-*-* } }
+
+#pragma GCC target("avx2")
+struct aa {
+ __attribute__((__always_inline__)) aa() {}
+};
+aa _M_impl;
base-commit: ff41abdca0ab9993b6170b9b1f46b3a40921f1b0
--
2.44.0
