From cd5c0aeeae00f5e093715127fe2fb6b6cb98a260 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Tue, 7 Mar 2017 09:04:38 +0100 Subject: [PATCH] re PR rtl-optimization/79901 (ICE in prepare_cmp_insn, at optabs.c:3904) PR rtl-optimization/79901 * expr.c (expand_expr_real_2): For vector MIN/MAX, if there is no min/max expander, expand it using expand_vec_cond_expr. From-SVN: r245946 --- gcc/ChangeLog | 4 ++++ gcc/expr.c | 12 ++++++++++++ 2 files changed, 16 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index eb06b5a..efeee1a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,9 @@ 2017-03-07 Jakub Jelinek + PR rtl-optimization/79901 + * expr.c (expand_expr_real_2): For vector MIN/MAX, if there is no + min/max expander, expand it using expand_vec_cond_expr. + PR sanitizer/79897 * ubsan.c (ubsan_encode_value): Call mark_addressable on the temporary. diff --git a/gcc/expr.c b/gcc/expr.c index 34bbf3d..91d7ea2 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -8943,6 +8943,18 @@ expand_expr_real_2 (sepops ops, rtx target, machine_mode tmode, if (temp != 0) return temp; + /* For vector MIN , expand it a VEC_COND_EXPR + and similarly for MAX . */ + if (VECTOR_TYPE_P (type)) + { + tree t0 = make_tree (type, op0); + tree t1 = make_tree (type, op1); + tree comparison = build2 (code == MIN_EXPR ? LE_EXPR : GE_EXPR, + type, t0, t1); + return expand_vec_cond_expr (type, comparison, t0, t1, + original_target); + } + /* At this point, a MEM target is no longer useful; we will get better code without it. */ -- 2.7.4