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Avoid repeated forwarder_block_p calls in CFG cleanup

Message ID 20230419103309.0B0BC3858D39@sourceware.org
State New
Headers show
Series Avoid repeated forwarder_block_p calls in CFG cleanup | expand

Commit Message

Richard Biener April 19, 2023, 10:32 a.m. UTC 
CFG cleanup maintains BB_FORWARDER_BLOCK and uses FORWARDER_BLOCK_P
to check that apart from two places which use forwarder_block_p
in outgoing_edges_match alongside many BB_FORWARDER_BLOCK uses.

The following adjusts those.

Bootstrapped and tested on x86_64-unknown-linux-gnu, I verified
cc1files produce the same code with/without this patch.

OK?

Thanks,
Richard.

	* cfgcleanup.cc (outgoing_edges_match): Use FORWARDER_BLOCK_P.
---
 gcc/cfgcleanup.cc | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/gcc/cfgcleanup.cc b/gcc/cfgcleanup.cc
index 78f59e99653..5f1aa29c89d 100644
--- a/gcc/cfgcleanup.cc
+++ b/gcc/cfgcleanup.cc
@@ -1861,9 +1861,9 @@  outgoing_edges_match (int mode, basic_block bb1, basic_block bb2)
   /* fallthru edges must be forwarded to the same destination.  */
   if (fallthru1)
     {
-      basic_block d1 = (forwarder_block_p (fallthru1->dest)
+      basic_block d1 = (FORWARDER_BLOCK_P (fallthru1->dest)
 			? single_succ (fallthru1->dest): fallthru1->dest);
-      basic_block d2 = (forwarder_block_p (fallthru2->dest)
+      basic_block d2 = (FORWARDER_BLOCK_P (fallthru2->dest)
 			? single_succ (fallthru2->dest): fallthru2->dest);
 
       if (d1 != d2)