diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ipa-strub.cc | 7 | ||||
| -rw-r--r-- | gcc/testsuite/g++.dg/strub-internal-pr112938.cc | 12 |
2 files changed, 19 insertions, 0 deletions
diff --git a/gcc/ipa-strub.cc b/gcc/ipa-strub.cc index dff9422..8fa7bdf 100644 --- a/gcc/ipa-strub.cc +++ b/gcc/ipa-strub.cc @@ -1940,6 +1940,9 @@ maybe_make_indirect (indirect_parms_t &indirect_parms, tree op, int *rec) TREE_TYPE (TREE_TYPE (op)), op, build_int_cst (TREE_TYPE (op), 0)); + if (TYPE_VOLATILE (TREE_TYPE (TREE_TYPE (op))) + && !TREE_THIS_VOLATILE (ret)) + TREE_SIDE_EFFECTS (ret) = TREE_THIS_VOLATILE (ret) = 1; return ret; } } @@ -2894,6 +2897,10 @@ pass_ipa_strub::execute (function *) probably drop the TREE_ADDRESSABLE and keep the TRUE. */ tree ref_type = build_ref_type_for (nparm); + if (TREE_THIS_VOLATILE (nparm) + && TYPE_VOLATILE (TREE_TYPE (nparm)) + && !TYPE_VOLATILE (ref_type)) + TREE_SIDE_EFFECTS (nparm) = TREE_THIS_VOLATILE (nparm) = 0; DECL_ARG_TYPE (nparm) = TREE_TYPE (nparm) = ref_type; relayout_decl (nparm); TREE_ADDRESSABLE (nparm) = 0; diff --git a/gcc/testsuite/g++.dg/strub-internal-pr112938.cc b/gcc/testsuite/g++.dg/strub-internal-pr112938.cc new file mode 100644 index 0000000..5a74bec --- /dev/null +++ b/gcc/testsuite/g++.dg/strub-internal-pr112938.cc @@ -0,0 +1,12 @@ +/* { dg-do compile } */ +/* { dg-options "-fdump-tree-optimized -O2" } */ +/* { dg-require-effective-target strub } */ + +bool __attribute__ ((__strub__ ("internal"))) +f(bool i, volatile bool j) +{ + return (i ^ j) == j; +} + +/* Check for two dereferences of the indirected volatile j parm. */ +/* { dg-final { scan-tree-dump-times {={v} \*j_[0-9][0-9]*(D)} 2 "optimized" } } */ |