From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 2153) id D52E23836010; Tue, 10 May 2022 08:18:38 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D52E23836010 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="utf-8" From: Jakub Jelinek To: gcc-cvs@gcc.gnu.org Subject: [gcc r10-10619] expr: Fix up VEC_PACK_TRUNC_EXPR expansion [PR101046] X-Act-Checkin: gcc X-Git-Author: Jakub Jelinek X-Git-Refname: refs/heads/releases/gcc-10 X-Git-Oldrev: 6ff30182d2e725d50e88a7d01c7bea7240ef70ee X-Git-Newrev: 8f79b09894c6037d0a376be239567ebdce42ea0e Message-Id: <20220510081838.D52E23836010@sourceware.org> Date: Tue, 10 May 2022 08:18:38 +0000 (GMT) X-BeenThere: gcc-cvs@gcc.gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gcc-cvs mailing list List-Unsubscribe: , List-Archive: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 10 May 2022 08:18:38 -0000 https://gcc.gnu.org/g:8f79b09894c6037d0a376be239567ebdce42ea0e commit r10-10619-g8f79b09894c6037d0a376be239567ebdce42ea0e Author: Jakub Jelinek Date: Tue Jun 15 11:36:47 2021 +0200 expr: Fix up VEC_PACK_TRUNC_EXPR expansion [PR101046] The following testcase ICEs, because we have a mode mismatch. VEC_PACK_TRUNC_EXPR's operands have different modes from the result (same vector mode size but twice as large element), but we were passing non-NULL subtarget with the mode of the result to the expansion of its arguments, so the VEC_PERM_EXPR in one of the operands which had V8SImode operands and result had V16HImode target. Fixed by clearing the subtarget if we are changing mode. 2021-06-15 Jakub Jelinek PR target/101046 * expr.c (expand_expr_real_2) : Clear subtarget when changing mode. (cherry picked from commit 008153c8435ca3bf587e11654c31f05c0f99b43a) Diff: --- gcc/expr.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/gcc/expr.c b/gcc/expr.c index c4bffd0f199..10f0b816dd1 100644 --- a/gcc/expr.c +++ b/gcc/expr.c @@ -9658,6 +9658,7 @@ expand_expr_real_2 (sepops ops, rtx target, machine_mode tmode, case VEC_PACK_SAT_EXPR: case VEC_PACK_FIX_TRUNC_EXPR: mode = TYPE_MODE (TREE_TYPE (treeop0)); + subtarget = NULL_RTX; goto binop; case VEC_PACK_TRUNC_EXPR: @@ -9681,6 +9682,7 @@ expand_expr_real_2 (sepops ops, rtx target, machine_mode tmode, return eops[0].value; } mode = TYPE_MODE (TREE_TYPE (treeop0)); + subtarget = NULL_RTX; goto binop; case VEC_PACK_FLOAT_EXPR: