This patch is the final version of enabling vect_int test for RVV. There are still 80+ FAILs and they can't be fixed by adjusting testcases or target-supports.exp Here is the analysis of **ALL** FAILs: 1. REAL highest priority FAILs: ICE: FAIL: gcc.dg/vect/vect-live-6.c (internal compiler error: in force_align_down_and_div, at poly-int.h:1903) FAIL: gcc.dg/vect/vect-live-6.c (test for excess errors) FAIL: gcc.dg/vect/vect-live-6.c -flto -ffat-lto-objects (internal compiler error: in force_align_down_and_div, at poly-int.h:1903) FAIL: gcc.dg/vect/vect-live-6.c -flto -ffat-lto-objects (test for excess errors) Execution fails: FAIL: gcc.dg/vect/slp-reduc-7.c -flto -ffat-lto-objects execution test FAIL: gcc.dg/vect/slp-reduc-7.c execution test FAIL: gcc.dg/vect/vect-alias-check-10.c -flto -ffat-lto-objects execution test FAIL: gcc.dg/vect/vect-alias-check-10.c execution test FAIL: gcc.dg/vect/vect-alias-check-11.c -flto -ffat-lto-objects execution test FAIL: gcc.dg/vect/vect-alias-check-11.c execution test FAIL: gcc.dg/vect/vect-alias-check-12.c -flto -ffat-lto-objects execution test FAIL: gcc.dg/vect/vect-alias-check-12.c execution test FAIL: gcc.dg/vect/vect-alias-check-14.c -flto -ffat-lto-objects execution test FAIL: gcc.dg/vect/vect-alias-check-14.c execution test FAIL: gcc.dg/vect/vect-double-reduc-5.c -flto -ffat-lto-objects execution test FAIL: gcc.dg/vect/vect-double-reduc-5.c execution test These FAILs are REAL problem that we need to address first. 2. Missed optimizations due to lacking VLS modes patterns: FAIL: gcc.dg/vect/pr57705.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorized 1 loop" 2 FAIL: gcc.dg/vect/pr57705.c scan-tree-dump-times vect "vectorized 1 loop" 2 FAIL: gcc.dg/vect/pr65518.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorized 0 loops in function" 2 FAIL: gcc.dg/vect/pr65518.c scan-tree-dump-times vect "vectorized 0 loops in function" 2 FAIL: gcc.dg/vect/slp-1.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorizing stmts using SLP" 4 FAIL: gcc.dg/vect/slp-1.c scan-tree-dump-times vect "vectorizing stmts using SLP" 4 FAIL: gcc.dg/vect/slp-12a.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorizing stmts using SLP" 1 FAIL: gcc.dg/vect/slp-12a.c scan-tree-dump-times vect "vectorizing stmts using SLP" 1 FAIL: gcc.dg/vect/slp-16.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-16.c scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-34-big-array.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-34-big-array.c scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-34.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-34.c scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-35.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorizing stmts using SLP" 1 FAIL: gcc.dg/vect/slp-35.c scan-tree-dump-times vect "vectorizing stmts using SLP" 1 FAIL: gcc.dg/vect/slp-43.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorized 1 loops" 13 FAIL: gcc.dg/vect/slp-43.c scan-tree-dump-times vect "vectorized 1 loops" 13 FAIL: gcc.dg/vect/slp-45.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorized 1 loops" 13 FAIL: gcc.dg/vect/slp-45.c scan-tree-dump-times vect "vectorized 1 loops" 13 FAIL: gcc.dg/vect/slp-47.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-47.c scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-48.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorizing stmts using SLP" 2 FAIL: gcc.dg/vect/slp-48.c scan-tree-dump-times vect "vectorizing stmts using SLP" 2 These testcases need VLS modes vec_init patterns. FAIL: gcc.dg/vect/vect-bic-bitmask-12.c -flto -ffat-lto-objects scan-tree-dump dce7 "<=\\s*.+{ 255,.+}" FAIL: gcc.dg/vect/vect-bic-bitmask-12.c scan-tree-dump dce7 "<=\\s*.+{ 255,.+}" FAIL: gcc.dg/vect/vect-bic-bitmask-23.c -flto -ffat-lto-objects scan-tree-dump dce7 "<=\\s*.+{ 255, 15, 1, 65535 }" FAIL: gcc.dg/vect/vect-bic-bitmask-23.c scan-tree-dump dce7 "<=\\s*.+{ 255, 15, 1, 65535 }" These testcases need VLS modes VCOND_MASK and vec_cmp patterns. 3. Maybe bogus dump check FAILs: FAIL: gcc.dg/vect/vect-multitypes-11.c -flto -ffat-lto-objects scan-tree-dump-times vect "vectorized 1 loops" 1 FAIL: gcc.dg/vect/vect-multitypes-11.c scan-tree-dump-times vect "vectorized 1 loops" 1 FAIL: gcc.dg/vect/vect-outer-4c-big-array.c -flto -ffat-lto-objects scan-tree-dump-times vect "zero step in outer loop." 1 FAIL: gcc.dg/vect/vect-outer-4c-big-array.c scan-tree-dump-times vect "zero step in outer loop." 1 FAIL: gcc.dg/vect/vect-reduc-dot-s16a.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-s16a.c scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-s8a.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-s8a.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_widen_mult_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-s8a.c scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-s8a.c scan-tree-dump-times vect "vect_recog_widen_mult_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-s8b.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_widen_mult_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-s8b.c scan-tree-dump-times vect "vect_recog_widen_mult_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-u16b.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-u16b.c scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-u8a.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-u8a.c scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-u8b.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-dot-u8b.c scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-1a.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-1a.c scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-1b-big-array.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-1b-big-array.c scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-1c-big-array.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-1c-big-array.c scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-2a.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-2a.c scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-2b-big-array.c -flto -ffat-lto-objects scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/vect-reduc-pattern-2b-big-array.c scan-tree-dump-times vect "vect_recog_widen_sum_pattern: detected" 1 FAIL: gcc.dg/vect/wrapv-vect-reduc-dot-s8b.c scan-tree-dump-times vect "vect_recog_dot_prod_pattern: detected" 1 FAIL: gcc.dg/vect/wrapv-vect-reduc-dot-s8b.c scan-tree-dump-times vect "vect_recog_widen_mult_pattern: detected" 1 These testcases because we don't support widen_sum/vec_unpack....etc patterns. Currently, we don't support them since we don't see the benefits. May support those patterns if they are beneficial ? Or Fix testcases ? Conclusion: IMHO, I think we can merge this patch after we addressed all REAL highest priority issues (1). The rest FAILs are not big issues then we can reduce them by supporting more features (For example VLS modes). Feel free to give any comments. gcc/testsuite/ChangeLog: * lib/target-supports.exp: Enable vect_int for RVV.