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-rw-r--r--gcc/mode-switching.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/gcc/mode-switching.c b/gcc/mode-switching.c
index 9667d96..dc05208 100644
--- a/gcc/mode-switching.c
+++ b/gcc/mode-switching.c
@@ -245,6 +245,17 @@ create_pre_exit (int n_entities, int *entity_map, const int *num_modes)
if (INSN_P (return_copy))
{
+ /* When using SJLJ exceptions, the call to the
+ unregister function is inserted between the
+ clobber of the return value and the copy.
+ We do not want to split the block before this
+ or any other call; if we have not found the
+ copy yet, the copy must have been deleted. */
+ if (CALL_P (return_copy))
+ {
+ short_block = 1;
+ break;
+ }
return_copy_pat = PATTERN (return_copy);
switch (GET_CODE (return_copy_pat))
{