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| author | Andrew MacLeod <amacleod@redhat.com> | 2022-11-01 13:18:33 -0400 |
|---|---|---|
| committer | Andrew MacLeod <amacleod@redhat.com> | 2022-11-01 13:31:06 -0400 |
| commit | 82b0345f6137b112728590d7c010dcd2cef08514 (patch) | |
| tree | 5cf30eac85f1e6061a54fc448391959fbc50382b | |
| parent | e7310e24b1c0ca67b1bb507c1330b2bf39e59e32 (diff) | |
| download | gcc-82b0345f6137b112728590d7c010dcd2cef08514.zip gcc-82b0345f6137b112728590d7c010dcd2cef08514.tar.gz gcc-82b0345f6137b112728590d7c010dcd2cef08514.tar.bz2 | |
Make sure ssa-name is valid.
PR tree-optimization/107497
* tree-vrp.cc (remove_unreachable::remove_and_update_globals):
Check that ssa-name still exists before accessing it.
| -rw-r--r-- | gcc/tree-vrp.cc | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/gcc/tree-vrp.cc b/gcc/tree-vrp.cc index f0e4d37..39f7eb7 100644 --- a/gcc/tree-vrp.cc +++ b/gcc/tree-vrp.cc @@ -180,7 +180,7 @@ remove_unreachable::remove_and_update_globals (bool final_p) bitmap_copy (dce, all_exports); // Don't attempt to DCE parameters. EXECUTE_IF_SET_IN_BITMAP (all_exports, 0, i, bi) - if (SSA_NAME_IS_DEFAULT_DEF (ssa_name (i))) + if (!ssa_name (i) || SSA_NAME_IS_DEFAULT_DEF (ssa_name (i))) bitmap_clear_bit (dce, i); simple_dce_from_worklist (dce); |