[PATCH] Put pass_sancov_O0 before pass_lower_switch with -O0 (PR sanitizer/82183).

[Martin Liška]

Hi.

Sorry that it took me quite some time. The patch puts sancov pass before switch
lowering on -O0.

Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
The test-case now works on aarch64.

Ready to be installed?
Martin

gcc/ChangeLog:

2018-02-16  Martin Liska  <mli...@suse.cz>

        PR sanitizer/82183
        * passes.def: Put pass_sancov_O0 before pass_lower_switch with -O0.
---
 gcc/passes.def | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)



diff --git a/gcc/passes.def b/gcc/passes.def
index 9802f08ecfc..3ebcfc30349 100644
--- a/gcc/passes.def
+++ b/gcc/passes.def
@@ -397,8 +397,8 @@ along with GCC; see the file COPYING3.  If not see
   NEXT_PASS (pass_lower_vaarg);
   NEXT_PASS (pass_lower_vector);
   NEXT_PASS (pass_lower_complex_O0);
-  NEXT_PASS (pass_lower_switch);
   NEXT_PASS (pass_sancov_O0);
+  NEXT_PASS (pass_lower_switch);
   NEXT_PASS (pass_asan_O0);
   NEXT_PASS (pass_tsan_O0);
   NEXT_PASS (pass_sanopt);