[Bug target/78460] New: [7 Regression] [SH] OOM building glibc string tst-cmp.c

["jsm28 at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78460

            Bug ID: 78460
           Summary: [7 Regression] [SH] OOM building glibc string
                    tst-cmp.c
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: jsm28 at gcc dot gnu.org
  Target Milestone: ---
            Target: sh4-linux-gnu

Created attachment 40105
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40105&action=edit
preprocessed source

GCC mainline built for sh4-linux-gnu runs out of memory building
string/tst-cmp.c.  The symptom observed is that cc1's memory usage goes up by a
bit under 1GB a second until it's killed after exhausting memory and swap (on a
system with 128GB of each).  Compile with: sh4-glibc-linux-gnu-gcc -S tst-cmp.i
-fno-isolate-erroneous-paths-dereference -fno-isolate-erroneous-paths-attribute
-std=gnu11 -fgnu89-inline  -O2 -fmerge-all-constants -g

Preprocessed source attached.