[Bug tree-optimization/95363] New: [11 regression] bb-slp-pr95271.c fails on arm since gc0e27f72358794692e367363940c6383e9ad1e45

clyon at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Wed May 27 11:41:08 GMT 2020


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=95363

            Bug ID: 95363
           Summary: [11 regression] bb-slp-pr95271.c fails on arm since
                    gc0e27f72358794692e367363940c6383e9ad1e45
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: clyon at gcc dot gnu.org
  Target Milestone: ---

Since gc0e27f72358794692e367363940c6383e9ad1e45, I've noticed that
gcc.dg/vect/bb-slp-pr95271.c fails on arm (that's when it was introduced):

FAIL: gcc.dg/vect/bb-slp-pr95271.c (test for excess errors)
Excess errors:
/gcc/testsuite/gcc.dg/vect/bb-slp-pr95271.c:13:21: warning: left shift count >=
width of type [-Wshift-count-overflow]
/gcc/testsuite/gcc.dg/vect/bb-slp-pr95271.c:13:60: warning: left shift count >=
width of type [-Wshift-count-overflow]
/gcc/testsuite/gcc.dg/vect/bb-slp-pr95271.c:14:38: warning: left shift count >=
width of type [-Wshift-count-overflow]
/gcc/testsuite/gcc.dg/vect/bb-slp-pr95271.c:15:38: warning: left shift count >=
width of type [-Wshift-count-overflow]

Do you want to use 'long long' instead of 'long' for variable 'd'?


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