[Bug tree-optimization/94443] [10 Regression] 510.parest_r and 526.blender_r ICE: verify_ssa failed since r10-7491-gbd0f22a8d5caea8905f38ff1fafce31c1b7d33ad
linkw at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Thu Apr 2 07:42:40 GMT 2020
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94443
--- Comment #7 from Kewen Lin <linkw at gcc dot gnu.org> ---
Yes, thanks Richi! I had the same update locally but didn't update here. The
latest whole patch is
diff --git a/gcc/testsuite/gcc.dg/vect/pr94443.c
b/gcc/testsuite/gcc.dg/vect/pr94443.c
new file mode 100644
index 0000000..f8cbaf1
--- /dev/null
+++ b/gcc/testsuite/gcc.dg/vect/pr94443.c
@@ -0,0 +1,13 @@
+/* { dg-do compile } */
+/* { dg-additional-options "-march=znver2" { target { x86_64-*-* i?86-*-* } }
} */
+
+/* Check it to be compiled successfully without any ICE. */
+
+int a;
+unsigned *b;
+
+void foo()
+{
+ for (unsigned i; i <= a; ++i, ++b)
+ ;
+}
diff --git a/gcc/tree-vect-loop.c b/gcc/tree-vect-loop.c
index c9b6534..b621f89 100644
--- a/gcc/tree-vect-loop.c
+++ b/gcc/tree-vect-loop.c
@@ -8050,7 +8050,7 @@ vectorizable_live_operation (stmt_vec_info stmt_info,
if (stmts)
{
gimple_stmt_iterator exit_gsi = gsi_after_labels (exit_bb);
- gsi_insert_before (&exit_gsi, stmts, GSI_CONTINUE_LINKING);
+ gsi_insert_seq_before (&exit_gsi, stmts, GSI_SAME_STMT);
/* Remove existing phi from lhs and create one copy from new_tree. */
tree lhs_phi = NULL_TREE;
@@ -8060,10 +8060,10 @@ vectorizable_live_operation (stmt_vec_info stmt_info,
gimple *phi = gsi_stmt (gsi);
if ((gimple_phi_arg_def (phi, 0) == lhs))
{
- remove_phi_node (&gsi, false);
lhs_phi = gimple_phi_result (phi);
gimple *copy = gimple_build_assign (lhs_phi, new_tree);
- gsi_insert_after (&exit_gsi, copy, GSI_CONTINUE_LINKING);
+ gsi_insert_before (&exit_gsi, copy, GSI_SAME_STMT);
+ remove_phi_node (&gsi, false);
break;
}
}
Still waiting for regression testing result.
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