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| author | Richard Biener <rguenther@suse.de> | 2022-08-12 12:20:13 +0200 |
|---|---|---|
| committer | Richard Biener <rguenther@suse.de> | 2022-08-12 13:37:31 +0200 |
| commit | 4cc0d3ebaee4b54280ff0466d8e5b351a3b5bacc (patch) | |
| tree | ed3b0555481fb1ebb69f36b7aaa7fab0d7851925 /gcc | |
| parent | f4ff20d464f90c85919ce2e7fa63e204dcda4e40 (diff) | |
| download | gcc-4cc0d3ebaee4b54280ff0466d8e5b351a3b5bacc.zip gcc-4cc0d3ebaee4b54280ff0466d8e5b351a3b5bacc.tar.gz gcc-4cc0d3ebaee4b54280ff0466d8e5b351a3b5bacc.tar.bz2 | |
tree-optimization/106593 - fix ICE with backward threading
With the last re-org I failed to make sure to not add SSA names
nor supported by ranger into m_imports which then triggers an
ICE in range_on_path_entry because range_of_expr returns false.
PR tree-optimization/106593
* tree-ssa-threadbackward.cc (back_threader::find_paths):
If the imports from the conditional do not satisfy
gimple_range_ssa_p don't try to thread anything.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/tree-ssa-threadbackward.cc | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/gcc/tree-ssa-threadbackward.cc b/gcc/tree-ssa-threadbackward.cc index 546a776..b886027 100644 --- a/gcc/tree-ssa-threadbackward.cc +++ b/gcc/tree-ssa-threadbackward.cc @@ -518,7 +518,11 @@ back_threader::find_paths (basic_block bb, tree name) bitmap_clear (m_imports); ssa_op_iter iter; FOR_EACH_SSA_TREE_OPERAND (name, stmt, iter, SSA_OP_USE) - bitmap_set_bit (m_imports, SSA_NAME_VERSION (name)); + { + if (!gimple_range_ssa_p (name)) + return; + bitmap_set_bit (m_imports, SSA_NAME_VERSION (name)); + } // Interesting is the set of imports we still not have see // the definition of. So while imports only grow, the |