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| author | Martin Liska <mliska@suse.cz> | 2022-11-07 08:24:48 +0100 |
|---|---|---|
| committer | Martin Liska <mliska@suse.cz> | 2022-11-07 08:24:48 +0100 |
| commit | 1b09b78ee61bd921ae78ebd0f7905b95b9e1c903 (patch) | |
| tree | 9c04b59cdd2cd460f0727501d15402d31ffcf5a4 /gcc/tree-ssa-loop-im.cc | |
| parent | 1eb021edb27e26f95cda63df121f6bc951647599 (diff) | |
| parent | c4f8f8afd07680f9e718de1331cd09607bdd9ac8 (diff) | |
| download | gcc-1b09b78ee61bd921ae78ebd0f7905b95b9e1c903.zip gcc-1b09b78ee61bd921ae78ebd0f7905b95b9e1c903.tar.gz gcc-1b09b78ee61bd921ae78ebd0f7905b95b9e1c903.tar.bz2 | |
Merge branch 'master' into devel/sphinx
Diffstat (limited to 'gcc/tree-ssa-loop-im.cc')
| -rw-r--r-- | gcc/tree-ssa-loop-im.cc | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/gcc/tree-ssa-loop-im.cc b/gcc/tree-ssa-loop-im.cc index 2ea8150..2119d40 100644 --- a/gcc/tree-ssa-loop-im.cc +++ b/gcc/tree-ssa-loop-im.cc @@ -835,10 +835,15 @@ determine_max_movement (gimple *stmt, bool must_preserve_exec) return true; } - else - FOR_EACH_SSA_TREE_OPERAND (val, stmt, iter, SSA_OP_USE) - if (!add_dependency (val, lim_data, loop, true)) - return false; + + /* A stmt that receives abnormal edges cannot be hoisted. */ + if (is_a <gcall *> (stmt) + && (gimple_call_flags (stmt) & ECF_RETURNS_TWICE)) + return false; + + FOR_EACH_SSA_TREE_OPERAND (val, stmt, iter, SSA_OP_USE) + if (!add_dependency (val, lim_data, loop, true)) + return false; if (gimple_vuse (stmt)) { |