https://gcc.gnu.org/g:7611357dc551d72a9072487d4b75cbb9e3048cc9
commit 7611357dc551d72a9072487d4b75cbb9e3048cc9 Author: Andrew Pinski <[email protected]> Date: Sat Sep 6 15:24:00 2025 -0700 dep_fusion: Fix if target does not have macro fusion [PR121835] This new pass will ICE if the target does not define the macro_fusion_pair_p pass. The pass will not be useful in that case so it is best to return early. Pushed as obvious after a bootstrap on x86_64-linux-gnu. PR rtl-optimization/121835 gcc/ChangeLog: * dep-fusion.cc (pass_dep_fusion::execute): Return early if macro_fusion_pair_p is null. Signed-off-by: Andrew Pinski <[email protected]> (cherry picked from commit 7b8c45d48f7fca3c10d43ca3f95e28b64458cf2b) Diff: --- gcc/dep-fusion.cc | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/gcc/dep-fusion.cc b/gcc/dep-fusion.cc index 1e69e68dd876..d040af6991ef 100644 --- a/gcc/dep-fusion.cc +++ b/gcc/dep-fusion.cc @@ -75,6 +75,10 @@ pass_dep_fusion::gate (function *) unsigned int pass_dep_fusion::execute (function *fn) { + // If the target has no macro fusion, there is nothing to be done. + if (!targetm.sched.macro_fusion_pair_p) + return 0; + // Initialization. calculate_dominance_info (CDI_DOMINATORS); df_analyze ();
