re PR target/78849 (ICE on initialization of global struct containing __int20…

re PR target/78849 (ICE on initialization of global struct containing __int20 array at varasm.c:4968)

	PR target/78849
	* gcc/tree.c (build_common_tree_nodes): Dont set TYPE_SIZE for __intN
	types.

	PR target/78849
	* gcc.target/msp430/msp430.exp: Remove -pedantic-errors from
	DEFAULT_CFLAGS.
	* gcc.target/msp430/pr78849.c: New test.

From-SVN: r260627

gcc/ChangeLog

-2017-05-23  Segher Boessenkool  <segher@kernel.crashing.org>
+2018-05-23  Jozef Lawrynowicz  <jozef.l@somniumtech.com>
+
+	PR target/78849
+	* gcc/tree.c (build_common_tree_nodes): Dont set TYPE_SIZE for __intN
+	types.
+
+2018-05-23  Segher Boessenkool  <segher@kernel.crashing.org>
 
 	* doc/sourcebuild.texi (Endianness): New subsubsection.
 

gcc/testsuite/ChangeLog

+2018-05-23  Jozef Lawrynowicz  <jozef.l@somniumtech.com>
+
+	PR target/78849
+	* gcc.target/msp430/msp430.exp: Remove -pedantic-errors from
+	DEFAULT_CFLAGS.
+	* gcc.target/msp430/pr78849.c: New test.
+
 2018-05-23  Marek Polacek  <polacek@redhat.com>
 
 	* g++.dg/cpp2a/range-for8.C: New test.

gcc/testsuite/gcc.target/msp430/msp430.exp

@@ -24,10 +24,15 @@ if { ![istarget msp430-*-*] } then {
 # Load support procs.
 load_lib gcc-dg.exp
 
-# If a testcase doesn't have special options, use these.
+# The '-pedantic-errors' option in the global variable DEFAULT_CFLAGS that is
+# set by other drivers causes an error when the __int20 type is used, so remove
+# this option from DEFAULT_CFLAGS for the msp430 tests.
 global DEFAULT_CFLAGS
-if ![info exists DEFAULT_CFLAGS] then {
-    set DEFAULT_CFLAGS ""
+if [info exists DEFAULT_CFLAGS] then {
+    set MSP430_DEFAULT_CFLAGS \
+      [ string map { "-pedantic-errors" "" } $DEFAULT_CFLAGS ]
+} else {
+   set MSP430_DEFAULT_CFLAGS ""
 }
 
 # Initialize `dg'.
@@ -35,7 +40,7 @@ dg-init
 
 # Main loop.
 dg-runtest [lsort [glob -nocomplain $srcdir/$subdir/*.\[cCS\]]] \
-	"" $DEFAULT_CFLAGS
+	"" $MSP430_DEFAULT_CFLAGS
 
 # All done.
 dg-finish

gcc/testsuite/gcc.target/msp430/pr78849.c

+/* { dg-do compile } */
+/* { dg-final { scan-assembler ".size.*instance.*52" } } */
+
+struct t_inner
+{
+  __int20 a;
+  char val1;
+  __int20 b[3];
+  char val2;
+};
+
+struct t_full
+{
+  __int20 array[2];
+  char val1;
+  struct t_inner bb[2];
+  char val2;
+};
+
+struct t_full instance =
+{
+    {
+      4231,
+      3212,
+    },
+    5,
+    {
+        {
+          87680,
+	  20,
+          {
+            2534,
+            3,
+            41,
+          },
+	  55,
+        },
+        {
+          567,
+	  4,
+          {
+            43522,
+            5433,
+            454,
+          },
+	  88,
+        },
+    },
+    8,
+};

gcc/tree.c

@@ -9785,8 +9785,6 @@ build_common_tree_nodes (bool signed_char)
     {
       int_n_trees[i].signed_type = make_signed_type (int_n_data[i].bitsize);
       int_n_trees[i].unsigned_type = make_unsigned_type (int_n_data[i].bitsize);
-      TYPE_SIZE (int_n_trees[i].signed_type) = bitsize_int (int_n_data[i].bitsize);
-      TYPE_SIZE (int_n_trees[i].unsigned_type) = bitsize_int (int_n_data[i].bitsize);
 
       if (int_n_data[i].bitsize > LONG_LONG_TYPE_SIZE
 	  && int_n_enabled_p[i])