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* [gcc r13-2888] Fix ICEs due to recent jump-to-return optimization
@ 2022-09-27 6:20 Jeff Law
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From: Jeff Law @ 2022-09-27 6:20 UTC (permalink / raw)
To: gcc-cvs
https://gcc.gnu.org/g:5da546d7e0561def07c783e6ec897aaa9e7837c6
commit r13-2888-g5da546d7e0561def07c783e6ec897aaa9e7837c6
Author: Jeff Law <jeffreyalaw@gmail.com>
Date: Tue Sep 27 01:44:38 2022 -0400
Fix ICEs due to recent jump-to-return optimization
gcc/
* cfgrtl.cc (fixup_reorder_chain): Verify that simple_return
and return are available before trying to use them.
Diff:
---
gcc/cfgrtl.cc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/gcc/cfgrtl.cc b/gcc/cfgrtl.cc
index 90cd6ee56a7..281a432f6a6 100644
--- a/gcc/cfgrtl.cc
+++ b/gcc/cfgrtl.cc
@@ -4049,7 +4049,8 @@ fixup_reorder_chain (void)
rtx_insn *ret, *use;
basic_block dest;
if (bb_is_just_return (e_fall->dest, &ret, &use)
- && (PATTERN (ret) == simple_return_rtx || PATTERN (ret) == ret_rtx))
+ && ((PATTERN (ret) == simple_return_rtx && targetm.have_simple_return ())
+ || (PATTERN (ret) == ret_rtx && targetm.have_return ())))
{
ret_label = PATTERN (ret);
dest = EXIT_BLOCK_PTR_FOR_FN (cfun);
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