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-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/calls.c3
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/g++.dg/abi/empty29.C7
4 files changed, 20 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index c907770..9c22fd7 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2017-12-20 Jakub Jelinek <jakub@redhat.com>
+
+ PR c++/83490
+ * calls.c (compute_argument_addresses): Ignore TYPE_EMPTY_P arguments.
+
2017-12-20 Julia Koval <julia.koval@intel.com>
* common/config/i386/i386-common.c (OPTION_MASK_ISA_VPCLMULQDQ_SET,
diff --git a/gcc/calls.c b/gcc/calls.c
index 6057aa6..166c152 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -2365,6 +2365,9 @@ compute_argument_addresses (struct arg_data *args, rtx argblock, int num_actuals
&& args[i].partial == 0)
continue;
+ if (TYPE_EMPTY_P (TREE_TYPE (args[i].tree_value)))
+ continue;
+
/* Pointer Bounds are never passed on the stack. */
if (POINTER_BOUNDS_P (args[i].tree_value))
continue;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 50bd37b..41ec29e 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2017-12-20 Jakub Jelinek <jakub@redhat.com>
+
+ PR c++/83490
+ * g++.dg/abi/empty29.C: New test.
+
2017-12-20 Martin Liska <mliska@suse.cz>
PR middle-end/82404
diff --git a/gcc/testsuite/g++.dg/abi/empty29.C b/gcc/testsuite/g++.dg/abi/empty29.C
new file mode 100644
index 0000000..92fa886
--- /dev/null
+++ b/gcc/testsuite/g++.dg/abi/empty29.C
@@ -0,0 +1,7 @@
+// PR c++/83490
+// { dg-do compile { target i?86-*-* x86_64-*-* } }
+// { dg-options "-fipa-icf-functions -Og -maccumulate-outgoing-args" }
+
+struct A {};
+A operator < (A, A) { return A (); }
+A operator > (A, A) { return A (); }