From 997532771156fcc29ded5fba7f5c7ec579311f45 Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Tue, 24 Jun 2014 10:35:30 +0000 Subject: re PR tree-optimization/61572 (ICE: in assign_by_spills, at lra-assigns.c:1335) 2014-06-24 Richard Biener PR tree-optimization/61572 * tree-ssa-sink.c (statement_sink_location): Do not sink loads from hard registers. * gcc.target/i386/pr61572.c: New testcase. From-SVN: r211933 --- gcc/tree-ssa-sink.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'gcc/tree-ssa-sink.c') diff --git a/gcc/tree-ssa-sink.c b/gcc/tree-ssa-sink.c index f7485ef..fb7310d 100644 --- a/gcc/tree-ssa-sink.c +++ b/gcc/tree-ssa-sink.c @@ -374,6 +374,12 @@ statement_sink_location (gimple stmt, basic_block frombb, nearest to commondom. */ if (gimple_vuse (stmt)) { + /* Do not sink loads from hard registers. */ + if (gimple_assign_single_p (stmt) + && TREE_CODE (gimple_assign_rhs1 (stmt)) == VAR_DECL + && DECL_HARD_REGISTER (gimple_assign_rhs1 (stmt))) + return false; + imm_use_iterator imm_iter; use_operand_p use_p; basic_block found = NULL; -- cgit v1.1