From 4fe48225fa4e263b8d77d7a1465e1214d9cc742c Mon Sep 17 00:00:00 2001 From: Richard Biener Date: Thu, 29 Jan 2026 15:43:01 +0100 Subject: [PATCH] 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. --- gcc/testsuite/gcc.dg/pr109410-2.c | 5 +++++ gcc/tree-ssa-reassoc.cc | 3 ++- 2 files changed, 7 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.dg/pr109410-2.c 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 d2d2e084aa6a..7abbf195520b 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))