[Bug middle-end/85403] internal compiler error: ... config/i386/i386.c:32347

["hjl at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85403

--- Comment #1 from hjl at gcc dot gnu.org <hjl at gcc dot gnu.org> ---
Author: hjl
Date: Mon Apr 16 11:31:22 2018
New Revision: 259400

URL: https://gcc.gnu.org/viewcvs?rev=259400&root=gcc&view=rev
Log:
i386: Check error_mark_node in multiversioning

Since CET is applied to the whole program, it is correct to disallow
-fcf-protection=full without -mcet.  But compiler shouldn't crash.

gcc/

        PR target/85403
        * config/i386/i386.c (get_builtin_code_for_version): Check
        error_mark_node.

gcc/testsuite/

        PR target/85403
        * gcc.target/i386/pr85403.c: New test.
---
 gcc/config/i386/i386.c                            |  2 ++
 gcc/testsuite/g++.dg/ext/mv1.C                    |  2 +-
 gcc/testsuite/g++.dg/ext/mv14.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv15.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv16.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv17.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv18.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv19.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv20.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv21.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv22.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv23.C                   |  2 +-
 gcc/testsuite/g++.dg/ext/mv26.C                   |  1 +
 gcc/testsuite/g++.dg/ext/mv6.C                    |  2 +-
 gcc/testsuite/g++.dg/ext/mvc1.C                   |  1 +
 gcc/testsuite/gcc.target/i386/cet-notrack-icf-1.c |  2 +-
 gcc/testsuite/gcc.target/i386/cet-notrack-icf-3.c |  2 +-
 gcc/testsuite/gcc.target/i386/cet-property-2.c    |  2 +-
 gcc/testsuite/gcc.target/i386/mvc1.c              |  1 +
 gcc/testsuite/gcc.target/i386/mvc10.c             |  1 +
 gcc/testsuite/gcc.target/i386/mvc11.c             |  2 +-
 gcc/testsuite/gcc.target/i386/mvc6.c              |  2 +-
 gcc/testsuite/gcc.target/i386/mvc7.c              |  1 +
 gcc/testsuite/gcc.target/i386/mvc8.c              |  2 +-
 gcc/testsuite/gcc.target/i386/mvc9.c              |  2 +-
 gcc/testsuite/gcc.target/i386/pr81213.c           |  1 +
 gcc/testsuite/gcc.target/i386/pr81214.c           |  1 +
 gcc/testsuite/gcc.target/i386/pr85403.c           | 10 ++++++++++
 gcc/testsuite/gcc.target/i386/sse-26.c            |  2 +-
 29 files changed, 39 insertions(+), 20 deletions(-)
 create mode 100644 gcc/testsuite/gcc.target/i386/pr85403.c

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 6fa5b0add02..8a73fc0d316 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -32344,6 +32344,8 @@ get_builtin_code_for_version (tree decl, tree
*predicate_list)
                                                      &global_options_set);

       gcc_assert (target_node);
+      if (target_node == error_mark_node)
+       return 0;
       new_target = TREE_TARGET_OPTION (target_node);
       gcc_assert (new_target);

diff --git a/gcc/testsuite/gcc.target/i386/pr85403.c
b/gcc/testsuite/gcc.target/i386/pr85403.c
new file mode 100644
index 00000000000..f4fb12dd4e2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/i386/pr85403.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-options "-fcf-protection -mcet" } */
+/* { dg-require-ifunc "" } */
+
+__attribute__((target_clones("avx","arch=slm","arch=core-avx2","default")))
+int
+foo ()
+{
+  return -2;
+} /* { dg-error "requires Intel CET support" } */

Added:
    trunk/gcc/testsuite/gcc.target/i386/pr85403.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/i386/i386.c
    trunk/gcc/testsuite/ChangeLog