[Bug middle-end/63184] [7/8/9 Regression] Fails to simplify comparison

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63184

Rainer Orth <ro at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
                 CC|                            |ro at gcc dot gnu.org
         Resolution|FIXED                       |---

--- Comment #14 from Rainer Orth <ro at gcc dot gnu.org> ---
The new testcases FAIL on quite a number of targets (I'm seeing it on
sparc-sun-solaris2.11, 32 and 64-bit, but there are also gcc-testresults
postings
for aarch64-unknown-linux-gnu, armv8l-unknown-linux-gnueabihf,
ia64-suse-linux-gnu, moxie-unknown-elf,powerpc64-unknown-linux-gnu,
powerpc64le-unknown-linux-gnu:

+FAIL: c-c++-common/pr19807-2.c  -std=gnu++14 (test for excess errors)
+FAIL: c-c++-common/pr19807-2.c  -std=gnu++17 (test for excess errors)
+FAIL: c-c++-common/pr19807-2.c  -std=gnu++98 (test for excess errors)
+FAIL: c-c++-common/pr19807-3.c  -std=gnu++14 (test for excess errors)
+FAIL: c-c++-common/pr19807-3.c  -std=gnu++17 (test for excess errors)
+FAIL: c-c++-common/pr19807-3.c  -std=gnu++98 (test for excess errors)

+FAIL: c-c++-common/pr19807-2.c  -Wc++-compat  (test for excess errors)

Excess errors:
Undefined                       first referenced
 symbol                             in file
link_error                          /var/tmp//ccvTdBwc.o

+FAIL: c-c++-common/pr19807-3.c  -Wc++-compat  (test for excess errors)