On x86-64, r267123 has [hjl@gnu-cfl-1 gcc]$ /export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/ -march=corei7 -fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers -fdiagnostics-color=never -Ofast -mavx512vl -masm=intel -c -o avx512vl-pr79299-1.o /export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/avx512vl-pr79299-1.c during GIMPLE pass: vect /export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/avx512vl-pr79299-1.c: In function \u2018f1\u2019: /export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/avx512vl-pr79299-1.c:15:1: internal compiler error: in vect_gen_perm_mask_checked, at tree-vect-stmts.c:7269 0x14c4956 vect_gen_perm_mask_checked(tree_node*, vec_perm_indices const&) /export/gnu/import/git/sources/gcc/gcc/tree-vect-stmts.c:7269 0x14b3759 vect_build_gather_load_calls /export/gnu/import/git/sources/gcc/gcc/tree-vect-stmts.c:2698 0x14c5c2f vectorizable_load /export/gnu/import/git/sources/gcc/gcc/tree-vect-stmts.c:7629 0x14ccb75 vect_transform_stmt(_stmt_vec_info*, gimple_stmt_iterator*, _slp_tree*, _slp_instance*) /export/gnu/import/git/sources/gcc/gcc/tree-vect-stmts.c:9655 0x14f157a vect_transform_loop_stmt /export/gnu/import/git/sources/gcc/gcc/tree-vect-loop.c:8139 0x14f224f vect_transform_loop(_loop_vec_info*) /export/gnu/import/git/sources/gcc/gcc/tree-vect-loop.c:8358 0x151d21e try_vectorize_loop_1 /export/gnu/import/git/sources/gcc/gcc/tree-vectorizer.c:969 0x151d4b5 try_vectorize_loop /export/gnu/import/git/sources/gcc/gcc/tree-vectorizer.c:1019 0x151d685 vectorize_loops() /export/gnu/import/git/sources/gcc/gcc/tree-vectorizer.c:1101 0x1389785 execute /export/gnu/import/git/sources/gcc/gcc/tree-ssa-loop.c:414 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. [hjl@gnu-cfl-1 gcc]$
Also: FAIL: gcc.target/i386/pr81225.c (internal compiler error) /export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc -B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/ /export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/pr81225.c -march=corei7 -fno-diagnostics-show-caret -fno-diagnostics-show-line-numbers -fdiagnostics-color=never -mavx512ifma -O3 -ffloat-store -S -o pr81225.s during GIMPLE pass: vect /export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/pr81225.c: In function \u2018foo\u2019: /export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.target/i386/pr81225.c:10:1: internal compiler error: in vect_gen_perm_mask_checked, at tree-vect-stmts.c:7269 0x14c4956 vect_gen_perm_mask_checked(tree_node*, vec_perm_indices const&) /export/gnu/import/git/sources/gcc/gcc/tree-vect-stmts.c:7269 0x14b3759 vect_build_gather_load_calls /export/gnu/import/git/sources/gcc/gcc/tree-vect-stmts.c:2698 0x14c5c2f vectorizable_load /export/gnu/import/git/sources/gcc/gcc/tree-vect-stmts.c:7629 0x14ccb75 vect_transform_stmt(_stmt_vec_info*, gimple_stmt_iterator*, _slp_tree*, _slp_instance*) /export/gnu/import/git/sources/gcc/gcc/tree-vect-stmts.c:9655 0x14f157a vect_transform_loop_stmt /export/gnu/import/git/sources/gcc/gcc/tree-vect-loop.c:8139 0x14f224f vect_transform_loop(_loop_vec_info*) /export/gnu/import/git/sources/gcc/gcc/tree-vect-loop.c:8358 0x151d21e try_vectorize_loop_1 /export/gnu/import/git/sources/gcc/gcc/tree-vectorizer.c:969 0x151d4b5 try_vectorize_loop /export/gnu/import/git/sources/gcc/gcc/tree-vectorizer.c:1019 0x151d685 vectorize_loops() /export/gnu/import/git/sources/gcc/gcc/tree-vectorizer.c:1101 0x1389785 execute /export/gnu/import/git/sources/gcc/gcc/tree-ssa-loop.c:414 Please submit a full bug report, with preprocessed source if appropriate. Please include the complete backtrace with any bug report. See <https://gcc.gnu.org/bugs/> for instructions. [hjl@gnu-cfl-1 gcc]$
Please try https://gcc.gnu.org/ml/gcc-patches/2018-12/msg01085.html
I just tried and both of failures are gone with Jakub's patch.
Author: jakub Date: Sat Dec 15 11:02:28 2018 New Revision: 267169 URL: https://gcc.gnu.org/viewcvs?rev=267169&root=gcc&view=rev Log: PR tree-optimization/88464 PR target/88498 * tree-vect-stmts.c (vect_build_gather_load_calls): For NARROWING and mask with integral masktype, don't try to permute mask vectors, instead emit VEC_UNPACK_{LO,HI}_EXPR. Fix up NOP_EXPR operand. (vectorizable_store): Handle masked scatters with decl and integral mask type. (permute_vec_elements): Allow scalar_dest to be NULL. * config/i386/i386.c (ix86_get_builtin) <case IX86_BUILTIN_GATHER3ALTDIV16SF>: Use lowpart_subreg for masks. <case IX86_BUILTIN_GATHER3ALTDIV8SF>: Don't assume mask and src have to be the same. * gcc.target/i386/avx512f-pr88462-1.c: Rename to ... * gcc.target/i386/avx512f-pr88464-1.c: ... this. Fix up PR number. Expect 4 vectorized loops instead of 3. (f4): New function. * gcc.target/i386/avx512f-pr88462-2.c: Rename to ... * gcc.target/i386/avx512f-pr88464-2.c: ... this. Fix up PR number and #include. (avx512f_test): Prepare arguments for f4 and check the results. * gcc.target/i386/avx512f-pr88464-3.c: New test. * gcc.target/i386/avx512f-pr88464-4.c: New test. Added: trunk/gcc/testsuite/gcc.target/i386/avx512f-pr88464-1.c - copied, changed from r267168, trunk/gcc/testsuite/gcc.target/i386/avx512f-pr88462-1.c trunk/gcc/testsuite/gcc.target/i386/avx512f-pr88464-2.c - copied, changed from r267168, trunk/gcc/testsuite/gcc.target/i386/avx512f-pr88462-2.c Removed: trunk/gcc/testsuite/gcc.target/i386/avx512f-pr88462-1.c trunk/gcc/testsuite/gcc.target/i386/avx512f-pr88462-2.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/i386/i386.c trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-vect-stmts.c
Author: jakub Date: Sat Dec 15 11:04:41 2018 New Revision: 267170 URL: https://gcc.gnu.org/viewcvs?rev=267170&root=gcc&view=rev Log: PR tree-optimization/88464 PR target/88498 * tree-vect-stmts.c (vect_build_gather_load_calls): For NARROWING and mask with integral masktype, don't try to permute mask vectors, instead emit VEC_UNPACK_{LO,HI}_EXPR. Fix up NOP_EXPR operand. (vectorizable_store): Handle masked scatters with decl and integral mask type. (permute_vec_elements): Allow scalar_dest to be NULL. * config/i386/i386.c (ix86_get_builtin) <case IX86_BUILTIN_GATHER3ALTDIV16SF>: Use lowpart_subreg for masks. <case IX86_BUILTIN_GATHER3ALTDIV8SF>: Don't assume mask and src have to be the same. * gcc.target/i386/avx512f-pr88462-1.c: Rename to ... * gcc.target/i386/avx512f-pr88464-1.c: ... this. Fix up PR number. Expect 4 vectorized loops instead of 3. (f4): New function. * gcc.target/i386/avx512f-pr88462-2.c: Rename to ... * gcc.target/i386/avx512f-pr88464-2.c: ... this. Fix up PR number and #include. (avx512f_test): Prepare arguments for f4 and check the results. * gcc.target/i386/avx512f-pr88464-3.c: New test. * gcc.target/i386/avx512f-pr88464-4.c: New test. Added: trunk/gcc/testsuite/gcc.target/i386/avx512f-pr88464-3.c trunk/gcc/testsuite/gcc.target/i386/avx512f-pr88464-4.c
Should be fixed now.