re PR target/77452 (ICE: in plus_constant, at explow.c:87 with -fno-split-wide-types -mavx512f --param=max-combine-insns=2)
PR rtl-optimization/77452
* explow.c (plus_constant) <case MEM>: Extract scalar constant from
inner-mode reference to a CONST_VECTOR constant in the constant pool.
testsuite/ChangeLog:
PR rtl-optimization/77452
* gcc.target/i386/pr77452.c: New test.
From-SVN: r239989
