[Bug target/94833] vec_first_match_index does not function as described in its description
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94833 --- Comment #5 from CVS Commits --- The releases/gcc-8 branch has been updated by Carl Love : https://gcc.gnu.org/g:c6dce1d8083a2fdc94be167a2465db7fd837ccae commit r8-10304-gc6dce1d8083a2fdc94be167a2465db7fd837ccae Author: Carl Love Date: Wed Jun 10 16:12:08 2020 -0500 pr94833, fix vec_first_match_index for nulls Backported patch from mainline. Updated ChangeLog format commit 24f68831d25bad739a6fe167a58b5b4c0c3cbf9a Author: Carl Love Date: Wed Apr 29 10:23:11 2020 -0500 Note the mainlin patch adds tests to the test case in mainline. The test case does not exist in GCC 8. Only the functional change in gcc/config/rs6000/vsx.md was backported. 2020-06-10 Carl Love gcc/ PR target/94833 * config/rs6000/vsx.md (define_expand): Fix instruction generation for first_match_index_.
[Bug target/94833] vec_first_match_index does not function as described in its description
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94833 --- Comment #4 from CVS Commits --- The releases/gcc-9 branch has been updated by Carl Love : https://gcc.gnu.org/g:a47259fa7737ff6d4a7def074fb30bc7baef2f86 commit r9-8659-ga47259fa7737ff6d4a7def074fb30bc7baef2f86 Author: Carl Love Date: Wed Apr 29 10:23:11 2020 -0500 pr94833, fix vec_first_match_index for nulls Backported patch from mainline. Updated ChangeLog format commit 24f68831d25bad739a6fe167a58b5b4c0c3cbf9a Author: Carl Love Date: Wed Apr 29 10:23:11 2020 -0500 2020-04-30 Carl Love gcc/ PR target/94833 * config/rs6000/vsx.md (define_expand): Fix instruction generation for first_match_index_. gcc/testsuite/ PR target/94833 * gcc.target/powerpc/builtins-8-p9-runnable.c (main): Add additional test cases with zero vector elements.
[Bug target/94833] vec_first_match_index does not function as described in its description
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94833 --- Comment #3 from CVS Commits --- The master branch has been updated by Carl Love : https://gcc.gnu.org/g:24f68831d25bad739a6fe167a58b5b4c0c3cbf9a commit r11-458-g24f68831d25bad739a6fe167a58b5b4c0c3cbf9a Author: Carl Love Date: Wed Apr 29 10:23:11 2020 -0500 pr94833, fix vec_first_match_index for nulls gcc/ChangeLog 2020-04-30 Carl Love PR target/94833 * config/rs6000/vsx.md (define_expand): Fix instruction generation for first_match_index_. * testsuite/gcc.target/powerpc/builtins-8-p9-runnable.c (main): Add additional test cases with zero vector elements.
[Bug target/94833] vec_first_match_index does not function as described in its description
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94833 Carl Love changed: What|Removed |Added Status|UNCONFIRMED |ASSIGNED Last reconfirmed||2020-04-28 Assignee|unassigned at gcc dot gnu.org |carll at gcc dot gnu.org Ever confirmed|0 |1
[Bug target/94833] vec_first_match_index does not function as described in its description
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94833 --- Comment #2 from Carl Love --- The ABI has the builtin VEC_FIRST_MATCH_OR_EOS_ INDEX (ARG1, ARG2) which says Returns the element index of the position of either the first character match or an end-of-string (EOS) terminator. If no match or terminator, returns the number of characters as an element count in the vector argument. So, I do agree the builtin in question should be treating the EOS (null) as any other number for comparison purposes.
