From 136049275038111ec39775a11970db0fd2769f96 Mon Sep 17 00:00:00 2001 From: Richard Guenther Date: Fri, 27 Jan 2012 15:50:32 +0000 Subject: [PATCH] re PR regression/52020 (ICE in immed_double_const, at emit-rtl.c:544) 2012-01-27 Richard Guenther PR tree-optimization/52020 * tree-sra.c (sra_modify_assign): Do not transform clobbers. From-SVN: r183633 --- gcc/ChangeLog | 5 +++++ gcc/tree-sra.c | 14 ++++++++++++++ 2 files changed, 19 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 60bc0a9ae3b..8b2e0c67946 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2012-01-27 Richard Guenther + + PR tree-optimization/52020 + * tree-sra.c (sra_modify_assign): Do not transform clobbers. + 2012-01-27 Richard Guenther * ipa-pure-const.c (check_stmt): Clobbers do not make a diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c index fa67e94cca3..675795860d7 100644 --- a/gcc/tree-sra.c +++ b/gcc/tree-sra.c @@ -2836,6 +2836,20 @@ sra_modify_constructor_assign (gimple *stmt, gimple_stmt_iterator *gsi) if (!acc) return SRA_AM_NONE; + if (gimple_clobber_p (*stmt)) + { + /* Remove clobbers of fully scalarized variables, otherwise + do nothing. */ + if (acc->grp_covered) + { + unlink_stmt_vdef (*stmt); + gsi_remove (gsi, true); + return SRA_AM_REMOVED; + } + else + return SRA_AM_NONE; + } + loc = gimple_location (*stmt); if (VEC_length (constructor_elt, CONSTRUCTOR_ELTS (gimple_assign_rhs1 (*stmt))) > 0) -- 2.30.2