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| author | Eric Botcazou <ebotcazou@adacore.com> | 2023-01-13 22:05:28 +0100 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@adacore.com> | 2023-01-13 22:15:20 +0100 |
| commit | 4fa6845b4b29f33cc7ea3d8ff49b61bb1f460561 (patch) | |
| tree | ff9a9dadaf7768d109ea8531e99f6046a5ebbc6b /gcc | |
| parent | 1a460d19ba0939e05b38befb6256f4f4bb416e0d (diff) | |
| download | gcc-4fa6845b4b29f33cc7ea3d8ff49b61bb1f460561.zip gcc-4fa6845b4b29f33cc7ea3d8ff49b61bb1f460561.tar.gz gcc-4fa6845b4b29f33cc7ea3d8ff49b61bb1f460561.tar.bz2 | |
Fix PR rtl-optimization/108274
Unlike other IPA passes, the ICF pass can be run at -O0 and some testcases
rely on this in the testsuite. Now it effectively creates a tail call so
the DF information needs be updated in this case after epilogue creation.
gcc/
PR rtl-optimization/108274
* function.cc (thread_prologue_and_epilogue_insns): Also update the
DF information for calls in a few more cases.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/function.cc | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/gcc/function.cc b/gcc/function.cc index 27ba880..cfc4d2f 100644 --- a/gcc/function.cc +++ b/gcc/function.cc @@ -6266,7 +6266,10 @@ thread_prologue_and_epilogue_insns (void) /* Threading the prologue and epilogue changes the artificial refs in the entry and exit blocks, and may invalidate DF info for tail calls. */ - if (optimize) + if (optimize + || flag_optimize_sibling_calls + || flag_ipa_icf_functions + || in_lto_p) df_update_entry_exit_and_calls (); else { |