https://gcc.gnu.org/g:490531cc072aa9bb132275855f027ccaabde122a
commit r15-10767-g490531cc072aa9bb132275855f027ccaabde122a Author: Richard Biener <[email protected]> Date: Thu Jan 29 15:43:01 2026 +0100 tree-optimization/109410 - ICE with noreturn and -g This fixes the -g variant of the original testcase. PR tree-optimization/109410 * tree-ssa-reassoc.cc (build_and_add_sum): Use gsi_start_nondebug_after_labels_bb to look for a possible returns-twice call. * gcc.dg/pr109410-2.c: New testcase. (cherry picked from commit 4fe48225fa4e263b8d77d7a1465e1214d9cc742c) Diff: --- gcc/testsuite/gcc.dg/pr109410-2.c | 5 +++++ gcc/tree-ssa-reassoc.cc | 3 ++- 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/gcc/testsuite/gcc.dg/pr109410-2.c b/gcc/testsuite/gcc.dg/pr109410-2.c new file mode 100644 index 000000000000..9dd8d0943c56 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr109410-2.c @@ -0,0 +1,5 @@ +/* PR tree-optimization/109410 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -g" } */ + +#include "pr109410.c" diff --git a/gcc/tree-ssa-reassoc.cc b/gcc/tree-ssa-reassoc.cc index 4017eea34135..2239b83352b6 100644 --- a/gcc/tree-ssa-reassoc.cc +++ b/gcc/tree-ssa-reassoc.cc @@ -1568,7 +1568,8 @@ build_and_add_sum (tree type, tree op1, tree op2, enum tree_code opcode) if ((!op1def || gimple_nop_p (op1def)) && (!op2def || gimple_nop_p (op2def))) { - gsi = gsi_after_labels (single_succ (ENTRY_BLOCK_PTR_FOR_FN (cfun))); + gsi = gsi_start_nondebug_after_labels_bb + (single_succ (ENTRY_BLOCK_PTR_FOR_FN (cfun))); if (!gsi_end_p (gsi) && is_gimple_call (gsi_stmt (gsi)) && (gimple_call_flags (gsi_stmt (gsi)) & ECF_RETURNS_TWICE))
