From 76773d3fea4daaaf5b0f6d79d9f48ffe6b3c97fd Mon Sep 17 00:00:00 2001 From: Andrew Pinski Date: Sun, 26 Sep 2021 05:44:58 +0000 Subject: Fix PR c/94726: ICE with __builtin_shuffle and changing of types The problem here is __builtin_shuffle when called with two arguments instead of 1, uses a SAVE_EXPR to put in for the 1st and 2nd operand of VEC_PERM_EXPR and when we go and gimplify the SAVE_EXPR, the type is now error_mark_node and that fails hard. This fixes the problem by adding a simple check for type of operand of SAVE_EXPR not to be error_mark_node. OK? Bootstrapped and tested on aarch64-linux-gnu with no regressions. gcc/ChangeLog: PR c/94726 * gimplify.c (gimplify_save_expr): Return early if the type of val is error_mark_node. gcc/testsuite/ChangeLog: PR c/94726 * gcc.dg/pr94726.c: New test. --- gcc/gimplify.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'gcc/gimplify.c') diff --git a/gcc/gimplify.c b/gcc/gimplify.c index 9163dcd..943c5cb 100644 --- a/gcc/gimplify.c +++ b/gcc/gimplify.c @@ -6232,6 +6232,9 @@ gimplify_save_expr (tree *expr_p, gimple_seq *pre_p, gimple_seq *post_p) gcc_assert (TREE_CODE (*expr_p) == SAVE_EXPR); val = TREE_OPERAND (*expr_p, 0); + if (TREE_TYPE (val) == error_mark_node) + return GS_ERROR; + /* If the SAVE_EXPR has not been resolved, then evaluate it once. */ if (!SAVE_EXPR_RESOLVED_P (*expr_p)) { -- cgit v1.1