summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorJakub Jelinek <jakub@redhat.com>2022-06-17 17:40:49 +0200
committerJakub Jelinek <jakub@redhat.com>2022-06-19 12:08:35 +0200
commit566e599c8194f789b077eb94a5e45ced2de5b31e (patch)
tree6bfb9d87edd07a1a3289f8e5132a6096a1d69128
parentexpand: Fix up IFN_ATOMIC_{BIT*,*CMP_0} expansion [PR105951] (diff)
downloadgcc-566e599c8194f789b077eb94a5e45ced2de5b31e.tar.gz
gcc-566e599c8194f789b077eb94a5e45ced2de5b31e.tar.bz2
gcc-566e599c8194f789b077eb94a5e45ced2de5b31e.tar.xz
c++: Use fold_non_dependent_expr rather than maybe_constant_value in __builtin_shufflevector handling [PR106001]
In this case the STATIC_CAST_EXPR expressions in the call aren't type nor value dependent, but maybe_constant_value still ICEs on those when processing_template_decl. Calling fold_non_dependent_expr on it instead fixes the ICE and folds them to INTEGER_CSTs. 2022-06-17 Jakub Jelinek <jakub@redhat.com> PR c++/106001 * typeck.cc (build_x_shufflevector): Use fold_non_dependent_expr instead of maybe_constant_value. * g++.dg/ext/builtin-shufflevector-4.C: New test. (cherry picked from commit a284fadcce8ef443cc3cc047a8017745efb51758)
-rw-r--r--gcc/cp/typeck.cc2
-rw-r--r--gcc/testsuite/g++.dg/ext/builtin-shufflevector-4.C18
2 files changed, 19 insertions, 1 deletions
diff --git a/gcc/cp/typeck.cc b/gcc/cp/typeck.cc
index a6c393647b2..ceb80d9744f 100644
--- a/gcc/cp/typeck.cc
+++ b/gcc/cp/typeck.cc
@@ -6334,7 +6334,7 @@ build_x_shufflevector (location_t loc, vec<tree, va_gc> *args,
6334 auto_vec<tree, 16> mask; 6334 auto_vec<tree, 16> mask;
6335 for (unsigned i = 2; i < args->length (); ++i) 6335 for (unsigned i = 2; i < args->length (); ++i)
6336 { 6336 {
6337 tree idx = maybe_constant_value ((*args)[i]); 6337 tree idx = fold_non_dependent_expr ((*args)[i], complain);
6338 mask.safe_push (idx); 6338 mask.safe_push (idx);
6339 } 6339 }
6340 tree exp = c_build_shufflevector (loc, arg0, arg1, mask, complain & tf_error); 6340 tree exp = c_build_shufflevector (loc, arg0, arg1, mask, complain & tf_error);
diff --git a/gcc/testsuite/g++.dg/ext/builtin-shufflevector-4.C b/gcc/testsuite/g++.dg/ext/builtin-shufflevector-4.C
new file mode 100644
index 00000000000..dae129b11d6
--- /dev/null
+++ b/gcc/testsuite/g++.dg/ext/builtin-shufflevector-4.C
@@ -0,0 +1,18 @@
1// PR c++/106001
2// { dg-do compile }
3
4typedef int V __attribute__((vector_size (2 * sizeof (int))));
5
6template <int>
7void
8foo ()
9{
10 V v = {};
11 v = __builtin_shufflevector (v, v, static_cast<char>(1), static_cast<char>(0));
12}
13
14void
15bar ()
16{
17 foo <0> ();
18}