https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113201
Bug ID: 113201 Summary: [14 Regression] internal compiler error: tree check: expected ssa_name, have integer_cst in replace_uses_by, at tree-cfg.cc:2058 Product: gcc Version: 14.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: doko at gcc dot gnu.org Target Milestone: --- seen with trunk 20240101 on x86_64-linux-gnu, building the xserver-xorg-video-intel package: fails with -O1, works with -O0. The unreduced testcase didn't work with -O2 either, the reduced test case works with -O2 $ cat sna_accel.i void __sigsetjmp(); void kgem_add_reloc() { int bh; __sigsetjmp(); while (--bh) ; kgem_add_reloc(); } $ gcc -c -O1 sna_accel.i during GIMPLE pass: sccp sna_accel.i: In function 'kgem_add_reloc': sna_accel.i:2:6: internal compiler error: tree check: expected ssa_name, have integer_cst in replace_uses_by, at tree-cfg.cc:2058 2 | void kgem_add_reloc() { | ^~~~~~~~~~~~~~ 0x137f737 tree_check_failed(tree_node const*, char const*, int, char const*, ...) ../../src/gcc/tree.cc:8952 0xbbd284 tree_check(tree_node*, char const*, int, char const*, tree_code) ../../src/gcc/tree.h:3612 0xbbd284 replace_uses_by(tree_node*, tree_node*) ../../src/gcc/tree-cfg.cc:2058 0x1fcbdc6 final_value_replacement_loop(loop*) ../../src/gcc/tree-scalar-evolution.cc:3885 0x1f62756 execute ../../src/gcc/tree-ssa-loop.cc:410 Please submit a full bug report, with preprocessed source (by using -freport-bug).