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re PR ipa/63196 (FAIL: g++.dg/torture/pr57140.C -O3 -fomit-frame-pointer (internal compiler error))

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2014-09-08  Richard Biener  <rguenther@suse.de>

	PR ipa/63196
	* tree-inline.c (copy_loops): The source loop header should
	always be non-NULL.
	(tree_function_versioning): If loops need fixup after removing
	unreachable blocks fix them.
	* omp-low.c (simd_clone_adjust): Do not add incr block to
	loop under construction.

From-SVN: r215016
This commit is contained in:
Richard Biener 2014-09-08 14:28:51 +00:00 committed by Richard Biener
parent efe295f237
commit 33d9078ac5
3 changed files with 19 additions and 7 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2014-09-08 Richard Biener <rguenther@suse.de>
PR ipa/63196
* tree-inline.c (copy_loops): The source loop header should
always be non-NULL.
(tree_function_versioning): If loops need fixup after removing
unreachable blocks fix them.
* omp-low.c (simd_clone_adjust): Do not add incr block to
loop under construction.
2014-09-08 Alan Lawrence <alan.lawrence@arm.com>
* config/aarch64/aarch64-builtins.c

4
gcc/omp-low.c
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@ -11900,6 +11900,7 @@ simd_clone_adjust (struct cgraph_node *node)
iteration increment and the condition/branch. */
basic_block orig_exit = EDGE_PRED (EXIT_BLOCK_PTR_FOR_FN (cfun), 0)->src;
basic_block incr_bb = create_empty_bb (orig_exit);
add_bb_to_loop (incr_bb, body_bb->loop_father);
/* The succ of orig_exit was EXIT_BLOCK_PTR_FOR_FN (cfun), with an empty
flag. Set it now to be a FALLTHRU_EDGE. */
gcc_assert (EDGE_COUNT (orig_exit->succs) == 1);
@ -11924,7 +11925,6 @@ simd_clone_adjust (struct cgraph_node *node)
loop->safelen = node->simdclone->simdlen;
loop->force_vectorize = true;
loop->header = body_bb;
add_bb_to_loop (incr_bb, loop);
/* Branch around the body if the mask applies. */
if (node->simdclone->inbranch)
@ -11965,7 +11965,7 @@ simd_clone_adjust (struct cgraph_node *node)
gsi_insert_after (&gsi, g, GSI_CONTINUE_LINKING);
e = split_block (incr_bb, gsi_stmt (gsi));
basic_block latch_bb = e->dest;
basic_block new_exit_bb = e->dest;
basic_block new_exit_bb;
new_exit_bb = split_block (latch_bb, NULL)->dest;
loop->latch = latch_bb;

12
gcc/tree-inline.c
View File

@ -2376,11 +2376,8 @@ copy_loops (copy_body_data *id,
/* Assign the new loop its header and latch and associate
those with the new loop. */
if (src_loop->header != NULL)
{
dest_loop->header = (basic_block)src_loop->header->aux;
dest_loop->header->loop_father = dest_loop;
}
dest_loop->header = (basic_block)src_loop->header->aux;
dest_loop->header->loop_father = dest_loop;
if (src_loop->latch != NULL)
{
dest_loop->latch = (basic_block)src_loop->latch->aux;
@ -5536,6 +5533,11 @@ tree_function_versioning (tree old_decl, tree new_decl,
delete_unreachable_blocks_update_callgraph (&id);
if (id.dst_node->definition)
cgraph_edge::rebuild_references ();
if (loops_state_satisfies_p (LOOPS_NEED_FIXUP))
{
calculate_dominance_info (CDI_DOMINATORS);
fix_loop_structure (NULL);
}
update_ssa (TODO_update_ssa);
/* After partial cloning we need to rescale frequencies, so they are