[Bug tree-optimization/110672] New: vec.h:1023:9: error: 'new_temp' may be used uninitialized [-Werror=maybe-uninitialized]

[Bug tree-optimization/110672] New: vec.h:1023:9: error: 'new_temp' may be used uninitialized [-Werror=maybe-uninitialized]

[danglin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110672

            Bug ID: 110672
           Summary: vec.h:1023:9: error: 'new_temp' may be used
                    uninitialized [-Werror=maybe-uninitialized]
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: danglin at gcc dot gnu.org
  Target Milestone: ---
              Host: hppa64-hp-hpux11.11
            Target: hppa64-hp-hpux11.11
             Build: hppa64-hp-hpux11.11

In stage2,

/home/dave/gnu/gcc/objdir64/./prev-gcc/xg++
-B/home/dave/gnu/gcc/objdir64/./prev-gcc/
-B/opt/gnu64/gcc/gcc-14/hppa64-hp-hpux11.11/bin/ -nostdinc++
-B/home/dave/gnu/gcc/objdir64/prev-hppa64-hp-hpux11.11/libstdc++-v3/src/.libs
-B/home/dave/gnu/gcc/objdir64/prev-hppa64-hp-hpux11.11/libstdc++-v3/libsupc++/.libs

-I/home/dave/gnu/gcc/objdir64/prev-hppa64-hp-hpux11.11/libstdc++-v3/include/hppa64-hp-hpux11.11
 -I/home/dave/gnu/gcc/objdir64/prev-hppa64-hp-hpux11.11/libstdc++-v3/include 
-I/home/dave/gnu/gcc/gcc/libstdc++-v3/libsupc++
-L/home/dave/gnu/gcc/objdir64/prev-hppa64-hp-hpux11.11/libstdc++-v3/src/.libs
-L/home/dave/gnu/gcc/objdir64/prev-hppa64-hp-hpux11.11/libstdc++-v3/libsupc++/.libs
 -fno-PIE -c   -g -O2 -fno-checking -DIN_GCC    -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -Wconditionally-supported
-Woverloaded-virtual -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -Werror   -DHAVE_CONFIG_H -fno-PIE -I. -I.
-I../../gcc/gcc -I../../gcc/gcc/. -I../../gcc/gcc/../include 
-I../../gcc/gcc/../libcpp/include -I../../gcc/gcc/../libcody
-I/opt/gnu64/gcc/gmp/include  -I../../gcc/gcc/../libdecnumber
-I../../gcc/gcc/../libdecnumber/dpd -I../libdecnumber
-I../../gcc/gcc/../libbacktrace -I/opt/gnu64/gcc/gmp/include  -o
tree-vect-slp.o -MT tree-vect-slp.o -MMD -MP -MF ./.deps/tree-vect-slp.TPo
../../gcc/gcc/tree-vect-slp.cc
In file included from ../../gcc/gcc/hash-table.h:248,
                 from ../../gcc/gcc/coretypes.h:486,
                 from ../../gcc/gcc/tree-vect-stmts.cc:24:
In member function 'T* vec<T, A, vl_embed>::quick_push(const T&) [with T =
tree_node*; A = va_heap]',
    inlined from 'T* vec<T>::quick_push(const T&) [with T = tree_node*]' at
../../gcc/gcc/vec.h:1987:28,
    inlined from 'bool vectorizable_load(vec_info*, stmt_vec_info,
gimple_stmt_iterator*, gimple**, slp_tree, stmt_vector_for_cost*)' at
../../gcc/gcc/tree-vect-stmts.cc:10962:23:
../../gcc/gcc/vec.h:1023:9: error: 'new_temp' may be used uninitialized
[-Werror=maybe-uninitialized]
 1023 |   *slot = obj;
      |   ~~~~~~^~~~~
../../gcc/gcc/tree-vect-stmts.cc: In function 'bool
vectorizable_load(vec_info*, stmt_vec_info, gimple_stmt_iterator*, gimple**,
slp_tree, stmt_vector_for_cost*)':
../../gcc/gcc/tree-vect-stmts.cc:9300:8: note: 'new_temp' was declared here
 9300 |   tree new_temp;
      |        ^~~~~~~~
cc1plus: all warnings being treated as errors

Initializing new_temp to NULL_TREE fixes warning.

[Bug tree-optimization/110672] vec.h:1023:9: error: 'new_temp' may be used uninitialized [-Werror=maybe-uninitialized]

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110672

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup.

*** This bug has been marked as a duplicate of bug 110652 ***