re PR target/92744 (error: insn does not satisfy its constraints since r278439)

	PR target/92744
	* config/i386/i386.md (peephole2 for *swap<mode>): Use
	general_reg_operand predicates instead of register_operand.

	* g++.dg/dfp/pr92744.C: New test.

From-SVN: r278924

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index e06244c..a89c435 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2019-12-03  Uroš Bizjak  <ubizjak@gmail.com>
+           Jakub Jelinek  <jakub@redhat.com>
+
+       PR target/92744
+       * config/i386/i386.md (peephole2 for *swap<mode>): Use
+       general_reg_operand predicates instead of register_operand.
+
 2019-12-03  Richard Biener  <rguenther@suse.de>
 
        PR tree-optimization/92645

diff --git a/gcc/config/i386/i386.md b/gcc/config/i386/i386.md
index 7ff5872..2d43992 100644 (file)
--- a/gcc/config/i386/i386.md
+++ b/gcc/config/i386/i386.md
@@ -2788,10 +2788,10 @@
    (set_attr "bdver1_decode" "double")])
 
 (define_peephole2
-  [(set (match_operand:SWI 0 "register_operand")
-       (match_operand:SWI 1 "register_operand"))
+  [(set (match_operand:SWI 0 "general_reg_operand")
+       (match_operand:SWI 1 "general_reg_operand"))
    (set (match_dup 1)
-       (match_operand:SWI 2 "register_operand"))
+       (match_operand:SWI 2 "general_reg_operand"))
    (set (match_dup 2) (match_dup 0))]
   "peep2_reg_dead_p (3, operands[0])
    && optimize_insn_for_size_p ()"

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9b0d0a3..2d8c350 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,8 @@
 2019-12-03  Jakub Jelinek  <jakub@redhat.com>
 
+       PR target/92744
+       * g++.dg/dfp/pr92744.C: New test.
+
        PR c++/92732
        * g++.dg/cpp2a/bitfield3.C: Don't expect narrowing conversion
        warnings.

diff --git a/gcc/testsuite/g++.dg/dfp/pr92744.C b/gcc/testsuite/g++.dg/dfp/pr92744.C
new file mode 100644 (file)
index 0000000..5026e8d
--- /dev/null
+++ b/gcc/testsuite/g++.dg/dfp/pr92744.C
@@ -0,0 +1,20 @@
+// PR target/92744
+// { dg-do compile }
+// { dg-options "-Os -fno-tree-ccp" }
+
+typedef float T __attribute__((mode(SD)));
+struct A { T a; };
+void foo ();
+
+bool
+operator!= (A x, A y)
+{
+  return x.a != y.a;
+}
+
+void
+bar (A x, A y)
+{
+  if (x != y)
+    foo ();
+}