[Bug rtl-optimization/78638] New: [7 regression] test cases gcc.target/powerpc/rlwimi-0.c and rlwimi-2.c fail starting with r243000

[seurer at linux dot vnet.ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78638

            Bug ID: 78638
           Summary: [7 regression] test cases
                    gcc.target/powerpc/rlwimi-0.c and rlwimi-2.c fail
                    starting with r243000
           Product: gcc
           Version: 7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: seurer at linux dot vnet.ibm.com
  Target Milestone: ---

It looks like the counts of some of the assembler instructions changed with
this update and the test case needs updating.

make -k check-gcc RUNTESTFLAGS=powerpc.exp=rlwimi-0.c

FAIL: gcc.target/powerpc/rlwimi-0.c scan-assembler-times (?n)^\\s+[a-z] 19909
PASS: gcc.target/powerpc/rlwimi-0.c scan-assembler-times (?n)^\\s+blr 6750
PASS: gcc.target/powerpc/rlwimi-0.c scan-assembler-times (?n)^\\s+mr 11
PASS: gcc.target/powerpc/rlwimi-0.c scan-assembler-times (?n)^\\s+rldicl 6420
PASS: gcc.target/powerpc/rlwimi-0.c scan-assembler-times (?n)^\\s+rldimi 310
PASS: gcc.target/powerpc/rlwimi-0.c scan-assembler-times (?n)^\\s+rlwimi 6110
FAIL: gcc.target/powerpc/rlwimi-0.c scan-assembler-times (?n)^\\s+rotlwi 308
                === gcc Summary ===

# of expected passes            6
# of unexpected failures        2



gcc.target/powerpc/rlwimi-2.c fails similarly

FAIL: gcc.target/powerpc/rlwimi-2.c scan-assembler-times (?n)^\\s+[a-z] 20217
PASS: gcc.target/powerpc/rlwimi-2.c scan-assembler-times (?n)^\\s+blr 6750
PASS: gcc.target/powerpc/rlwimi-2.c scan-assembler-times (?n)^\\s+mr 11
PASS: gcc.target/powerpc/rlwimi-2.c scan-assembler-times (?n)^\\s+rldicl 6728
PASS: gcc.target/powerpc/rlwimi-2.c scan-assembler-times (?n)^\\s+rlwimi 1692
PASS: gcc.target/powerpc/rlwimi-2.c scan-assembler-times (?n)^\\s+mulli 5036