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-rw-r--r--gcc/cfgcleanup.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/gcc/cfgcleanup.c b/gcc/cfgcleanup.c
index fca3a08..b930763 100644
--- a/gcc/cfgcleanup.c
+++ b/gcc/cfgcleanup.c
@@ -3193,7 +3193,10 @@ cleanup_cfg (int mode)
&& !delete_trivially_dead_insns (get_insns (), max_reg_num ()))
break;
if ((mode & CLEANUP_CROSSJUMP) && crossjumps_occurred)
- run_fast_dce ();
+ {
+ run_fast_dce ();
+ mode &= ~CLEANUP_FORCE_FAST_DCE;
+ }
}
else
break;
@@ -3202,6 +3205,9 @@ cleanup_cfg (int mode)
if (mode & CLEANUP_CROSSJUMP)
remove_fake_exit_edges ();
+ if (mode & CLEANUP_FORCE_FAST_DCE)
+ run_fast_dce ();
+
/* Don't call delete_dead_jumptables in cfglayout mode, because
that function assumes that jump tables are in the insns stream.
But we also don't _have_ to delete dead jumptables in cfglayout