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From: Alexandre Oliva <aoliva@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/aoliva/heads/testme)] -finline-stringops: don't assume ptr_mode ptr in memset [PR112804] Date: Sat, 9 Dec 2023 01:37:59 +0000 (GMT) [thread overview] Message-ID: <20231209013759.B79A03858C53@sourceware.org> (raw) https://gcc.gnu.org/g:fcf66065b6d7865aeff47678db37670e4575a95d commit fcf66065b6d7865aeff47678db37670e4575a95d Author: Alexandre Oliva <oliva@adacore.com> Date: Fri Dec 8 21:41:50 2023 -0300 -finline-stringops: don't assume ptr_mode ptr in memset [PR112804] On aarch64 -milp32, and presumably on other such targets, ptr can be in a different mode than ptr_mode in the testcase. Cope with it. for gcc/ChangeLog PR target/112804 * builtins.cc (try_store_by_multiple_pieces): Use ptr's mode for the increment. for gcc/testsuite/ChangeLog PR target/112804 * gcc.target/aarch64/inline-mem-set-pr112804.c: New. Diff: --- gcc/builtins.cc | 2 +- gcc/testsuite/gcc.target/aarch64/inline-mem-set-pr112804.c | 7 +++++++ 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/gcc/builtins.cc b/gcc/builtins.cc index d5135ca162a..4c3a93fb42f 100644 --- a/gcc/builtins.cc +++ b/gcc/builtins.cc @@ -4548,7 +4548,7 @@ try_store_by_multiple_pieces (rtx to, rtx len, unsigned int ctz_len, to = change_address (to, QImode, 0); emit_move_insn (to, val); if (update_needed) - next_ptr = plus_constant (ptr_mode, ptr, blksize); + next_ptr = plus_constant (GET_MODE (ptr), ptr, blksize); } else { diff --git a/gcc/testsuite/gcc.target/aarch64/inline-mem-set-pr112804.c b/gcc/testsuite/gcc.target/aarch64/inline-mem-set-pr112804.c new file mode 100644 index 00000000000..fe841455986 --- /dev/null +++ b/gcc/testsuite/gcc.target/aarch64/inline-mem-set-pr112804.c @@ -0,0 +1,7 @@ +/* { dg-do compile } */ +/* { dg-options "-finline-stringops -mabi=ilp32 -ftrivial-auto-var-init=zero" } */ + +short m(unsigned k) { + const unsigned short *n[65]; + return 0; +}
next reply other threads:[~2023-12-09 1:37 UTC|newest] Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top 2023-12-09 1:37 Alexandre Oliva [this message] 2023-12-09 1:49 Alexandre Oliva 2023-12-11 16:09 Alexandre Oliva
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