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From: "jakub at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug tree-optimization/99882] [11 Regression] ICE in bswap_view_convert, at gimple-ssa-store-merging.c:988 since r11-7946-g5b9a65ecbeb22ef6 Date: Fri, 02 Apr 2021 14:55:46 +0000 [thread overview] Message-ID: <bug-99882-4-DTObNvGcls@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-99882-4@http.gcc.gnu.org/bugzilla/> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99882 Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |ASSIGNED Assignee|unassigned at gcc dot gnu.org |jakub at gcc dot gnu.org --- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> --- Untested fix: --- gcc/gimple-ssa-store-merging.c.jj 2021-04-01 10:50:56.238629197 +0200 +++ gcc/gimple-ssa-store-merging.c 2021-04-02 16:52:38.763803716 +0200 @@ -985,10 +985,19 @@ public: static tree bswap_view_convert (gimple_stmt_iterator *gsi, tree type, tree val) { - gcc_assert (INTEGRAL_TYPE_P (TREE_TYPE (val))); + gcc_assert (INTEGRAL_TYPE_P (TREE_TYPE (val)) + || POINTER_TYPE_P (TREE_TYPE (val))); if (TYPE_SIZE (type) != TYPE_SIZE (TREE_TYPE (val))) { HOST_WIDE_INT prec = TREE_INT_CST_LOW (TYPE_SIZE (type)); + if (POINTER_TYPE_P (TREE_TYPE (val))) + { + gimple *g + = gimple_build_assign (make_ssa_name (pointer_sized_int_node), + NOP_EXPR, val); + gsi_insert_before (gsi, g, GSI_SAME_STMT); + val = gimple_assign_lhs (g); + } tree itype = build_nonstandard_integer_type (prec, 1); gimple *g = gimple_build_assign (make_ssa_name (itype), NOP_EXPR, val); gsi_insert_before (gsi, g, GSI_SAME_STMT); Slightly cleaned up testcase: void foo (char *p, void *q) { __INTPTR_TYPE__ i = (__INTPTR_TYPE__) q; p[2] = i; i >>= 8; p[3] = i; i >>= 8; p[4] = i; i >>= 8; p[5] = i; i >>= 8; p[6] = i; i >>= 8; p[7] = i; i >>= 8; p[8] = i; i >>= 8; p[9] = i; } void bar (char *p, void *q) { __INTPTR_TYPE__ i = (__INTPTR_TYPE__) q; p[2] = i; i >>= 8; p[3] = i; i >>= 8; p[4] = i; i >>= 8; p[5] = i; }
next prev parent reply other threads:[~2021-04-02 14:55 UTC|newest] Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top 2021-04-02 12:06 [Bug tree-optimization/99882] New: " marxin at gcc dot gnu.org 2021-04-02 12:06 ` [Bug tree-optimization/99882] " marxin at gcc dot gnu.org 2021-04-02 14:55 ` jakub at gcc dot gnu.org [this message] 2021-04-03 8:08 ` cvs-commit at gcc dot gnu.org 2021-04-03 8:17 ` jakub at gcc dot gnu.org
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