PR tree-optimization/79345
* gensupport.h (struct pattern_stats): Add min_scratch_opno field.
* gensupport.c (get_pattern_stats_1) <case MATCH_SCRATCH>: Update it.
(get_pattern_stats): Initialize it.
* genemit.c (gen_expand): Verify match_scratch numbers come after
match_operand/match_dup numbers.
* config/i386/i386.md (<s>mul<mode>3_highpart): Swap match_dup and
match_scratch numbers.
* config/i386/sse.md (avx2_gathersi<mode>, avx2_gatherdi<mode>):
Likewise.
* config/s390/s390.md (trunctdsd2): Likewise.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@245833 138bc75d-0d04-0410-961f-82ee72b054a4