[gcc/devel/omp/gcc-9] Backport fix for PR92090.

[Tobias Burnus]

https://gcc.gnu.org/g:8ea83ef1ef1b6f8bcaa8f9d8c673513f78548e47

commit 8ea83ef1ef1b6f8bcaa8f9d8c673513f78548e47
Author: Peter Bergner <bergner@linux.ibm.com>
Date:   Wed Nov 20 20:42:41 2019 +0000

    Backport fix for PR92090.
    
    gcc/
    	Backport from mainline
    	2019-11-07  Peter Bergner <bergner@linux.ibm.com>
    
    	PR other/92090
    	* config/rs6000/predicates.md (input_operand): Allow MODE_PARTIAL_INT
    	modes for integer constants.
    
    gcc/testsuite/
    	Backport from mainline
    	2019-11-13  David Edelsohn  <dje.gcc@gmail.com>
    
    	* gcc.target/powerpc/pr92090.c: Limit -mbig to powerpc64le-*-*.
    	* gcc.target/powerpc/pr92090-2.c: Likewise.
    
    	2019-11-07  Peter Bergner <bergner@linux.ibm.com>
    
    	PR other/92090
    	* gcc.target/powerpc/pr92090-2.c: New test.
    
    	2019-11-07  Peter Bergner <bergner@linux.ibm.com>
    
    	PR other/92090
    	* gcc.target/powerpc/pr92090.c: New test.
    
    From-SVN: r278527

Diff:
---
 gcc/ChangeLog                                |  9 ++++++
 gcc/config/rs6000/predicates.md              |  3 +-
 gcc/testsuite/ChangeLog                      | 18 +++++++++++
 gcc/testsuite/gcc.target/powerpc/pr92090-2.c | 45 ++++++++++++++++++++++++++++
 gcc/testsuite/gcc.target/powerpc/pr92090.c   | 43 ++++++++++++++++++++++++++
 5 files changed, 116 insertions(+), 2 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 52aa9c3..2e76ab4 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2019-11-20  Peter Bergner <bergner@linux.ibm.com>
+
+	Backport from mainline
+	2019-11-07  Peter Bergner <bergner@linux.ibm.com>
+
+	PR other/92090
+	* config/rs6000/predicates.md (input_operand): Allow MODE_PARTIAL_INT
+	modes for integer constants.
+
 2019-11-20  Michael Matz  <matz@suse.de>
 
 	Backport from mainline
diff --git a/gcc/config/rs6000/predicates.md b/gcc/config/rs6000/predicates.md
index 5cc80de..9e1d717 100644
--- a/gcc/config/rs6000/predicates.md
+++ b/gcc/config/rs6000/predicates.md
@@ -1053,8 +1053,7 @@
     return 1;
 
   /* Allow any integer constant.  */
-  if (GET_MODE_CLASS (mode) == MODE_INT
-      && CONST_SCALAR_INT_P (op))
+  if (SCALAR_INT_MODE_P (mode) && CONST_SCALAR_INT_P (op))
     return 1;
 
   /* Allow easy vector constants.  */
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 4cc8842..6fd3d93 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,21 @@
+2019-11-20  Peter Bergner  <bergner@linux.ibm.com>
+
+	Backport from mainline
+	2019-11-13  David Edelsohn  <dje.gcc@gmail.com>
+
+	* gcc.target/powerpc/pr92090.c: Limit -mbig to powerpc64le-*-*.
+	* gcc.target/powerpc/pr92090-2.c: Likewise.
+
+	2019-11-07  Peter Bergner <bergner@linux.ibm.com>
+
+	PR other/92090
+	* gcc.target/powerpc/pr92090-2.c: New test.
+
+	2019-11-07  Peter Bergner <bergner@linux.ibm.com>
+
+	PR other/92090
+	* gcc.target/powerpc/pr92090.c: New test.
+
 2019-10-28  Michael Matz  <matz@suse.de>
 
 	Backport from mainline
diff --git a/gcc/testsuite/gcc.target/powerpc/pr92090-2.c b/gcc/testsuite/gcc.target/powerpc/pr92090-2.c
new file mode 100644
index 0000000..1710dfd
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr92090-2.c
@@ -0,0 +1,45 @@
+/* { dg-do compile } */
+/* { dg-options "-mdejagnu-cpu=power8 -Os -w" } */
+/* { dg-additional-options "-mbig" { target powerpc64le-*-* } } */
+
+/* Verify that we don't ICE.  */
+
+int a;
+static _Atomic long double b, c, d, m;
+double n;
+extern int foo (void);
+extern void bar (int, int, int, int);
+
+void
+bug (void)
+{
+  b = 1.79769313486231580793728971405301199e308L;
+  for (int i = 0; i < 10000; i++)
+    if (__builtin_isinf (n))
+      b;
+  c = 1;
+  int e, f, g, h;
+  while (a)
+    ;
+  for (int i; i; i++)
+    {
+      double j = c /= foo ();
+      if (__builtin_isinf (j))
+	{
+	  if (foo == 1 << 31)
+	    e++;
+	  f++;
+	  c = 0;
+	}
+      else
+	{
+	  if (foo == 1 << 30)
+	    g++;
+	  h++;
+	  c = 1;
+	}
+    }
+  bar (e, f, g, h);
+  d = 1.79769313486231580793728971405301199e308L;
+  m = 1;
+}
diff --git a/gcc/testsuite/gcc.target/powerpc/pr92090.c b/gcc/testsuite/gcc.target/powerpc/pr92090.c
new file mode 100644
index 0000000..77c9f84
--- /dev/null
+++ b/gcc/testsuite/gcc.target/powerpc/pr92090.c
@@ -0,0 +1,43 @@
+/* { dg-do compile } */
+/* { dg-options "-mdejagnu-cpu=power8 -Os" } */
+/* { dg-additional-options "-mbig" { target powerpc64le-*-* } } */
+
+/* Verify that we don't ICE.  */
+
+_Atomic int a;
+_Atomic long double b, c;
+int j;
+void foo (void);
+void bar (int, int, int, int);
+
+void
+bug (void)
+{
+  b = 1;
+  int d, e, f, g;
+  while (a)
+    ;
+  for (int h = 0; h < 10000; h++)
+    {
+      double i = b /= 3;
+      foo ();
+      if (i)
+	{
+	  if (i == 1)
+	    d++;
+	  e++;
+	  b = 0;
+	}
+      else
+	{
+	  if (i == 2)
+	    f++;
+	  g++;
+	  b = 1;
+	}
+    }
+  bar (d, e, f, g);
+  c = 1;
+  for (int h; h; h++)
+    j = 0;
+}