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The following plugs this in data-ref analysis when that would create such invalid ADDR_EXPR as part of analyzing the ref structure. Bootstrapped and tested on x86_64-unknown-linux-gnu, pushed. PR tree-optimization/113602 * tree-vect-data-ref.cc (dr_analyze_innermost): Fail when the base object isn't addressable. * gcc.dg/pr113602.c: New testcase. --- gcc/testsuite/gcc.dg/pr113602.c | 10 ++++++++++ gcc/tree-data-ref.cc | 7 ++++++- 2 files changed, 16 insertions(+), 1 deletion(-) create mode 100644 gcc/testsuite/gcc.dg/pr113602.c diff --git a/gcc/testsuite/gcc.dg/pr113602.c b/gcc/testsuite/gcc.dg/pr113602.c new file mode 100644 index 00000000000..94bfbc91b5f --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr113602.c @@ -0,0 +1,10 @@ +/* { dg-do compile } */ +/* { dg-require-effective-target bitint575 } */ +/* { dg-options "-O2 -fno-tree-loop-optimize" } */ + +_BitInt(503) +f(void) +{ + register _BitInt(503) r asm(""); /* { dg-error "invalid" } */ + return r; +} diff --git a/gcc/tree-data-ref.cc b/gcc/tree-data-ref.cc index ae55bf6aa48..f37734b5340 100644 --- a/gcc/tree-data-ref.cc +++ b/gcc/tree-data-ref.cc @@ -1182,7 +1182,12 @@ dr_analyze_innermost (innermost_loop_behavior *drb, tree ref, base = TREE_OPERAND (base, 0); } else - base = build_fold_addr_expr (base); + { + if (may_be_nonaddressable_p (base)) + return opt_result::failure_at (stmt, + "failed: base not addressable.\n"); + base = build_fold_addr_expr (base); + } if (in_loop) { -- 2.35.3