File gcc8-pr89752.patch of Package cross-ppc64le-gcc7.11036
2019-03-20 Jakub Jelinek <jakub@redhat.com>
PR target/89752
* lra-constraints.c (process_alt_operands) <reg>: For BLKmode, don't
update this_alternative nor this_alternative_set.
* g++.target/aarch64/aarch64.exp: New file.
* g++.target/aarch64/pr89752.C: New test.
Index: gcc/testsuite/g++.target/aarch64/pr89752.C
===================================================================
--- gcc/testsuite/g++.target/aarch64/pr89752.C (nonexistent)
+++ gcc/testsuite/g++.target/aarch64/pr89752.C (revision 269819)
@@ -0,0 +1,11 @@
+// PR target/89752
+// { dg-do compile }
+
+struct A { A (); ~A (); short c; };
+
+void
+foo ()
+{
+ A a0, a1;
+ __asm volatile ("" : "=rm" (a0), "=rm" (a1) : "0" (a0), "1" (a1)); // { dg-error "inconsistent operand constraints in an 'asm'" }
+}
Index: gcc/testsuite/g++.target/aarch64/aarch64.exp
===================================================================
--- gcc/testsuite/g++.target/aarch64/aarch64.exp (nonexistent)
+++ gcc/testsuite/g++.target/aarch64/aarch64.exp (revision 269819)
@@ -0,0 +1,44 @@
+# Specific regression driver for AArch64.
+# Copyright (C) 2009-2019 Free Software Foundation, Inc.
+#
+# This file is part of GCC.
+#
+# GCC is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+#
+# GCC is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with GCC; see the file COPYING3. If not see
+# <http://www.gnu.org/licenses/>. */
+
+# GCC testsuite that uses the `dg.exp' driver.
+
+# Exit immediately if this isn't an AArch64 target.
+if {![istarget aarch64*-*-*] } then {
+ return
+}
+
+# Load support procs.
+load_lib g++-dg.exp
+
+global DEFAULT_CXXFLAGS
+if ![info exists DEFAULT_CXXFLAGS] then {
+ set DEFAULT_CXXFLAGS " -pedantic-errors"
+}
+
+# Initialize `dg'.
+dg-init
+
+# Main loop.
+dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.C]] \
+ "" $DEFAULT_CXXFLAGS
+
+# All done.
+dg-finish
+
Index: gcc/lra-constraints.c
===================================================================
--- gcc/lra-constraints.c (revision 269818)
+++ gcc/lra-constraints.c (revision 269819)
@@ -2350,6 +2350,8 @@ process_alt_operands (int only_alternati
break;
reg:
+ if (mode == BLKmode)
+ break;
this_alternative = reg_class_subunion[this_alternative][cl];
IOR_HARD_REG_SET (this_alternative_set,
reg_class_contents[cl]);
@@ -2360,8 +2362,6 @@ process_alt_operands (int only_alternati
IOR_HARD_REG_SET (this_costly_alternative_set,
reg_class_contents[cl]);
}
- if (mode == BLKmode)
- break;
winreg = true;
if (REG_P (op))
{