re PR rtl-optimization/5429 (gcc 3.1 20020114 fails with Internal compiler error…

re PR rtl-optimization/5429 (gcc 3.1 20020114 fails with Internal compiler error in verify_wide_reg_1, at flow.c:526)


	PR optimization/5429:
	* gcc.c-torture/compile/20020206-1.c: New test.

From-SVN: r49548

gcc/testsuite/ChangeLog

+2002-02-06  Jakub Jelinek  <jakub@redhat.com>
+
+	PR optimization/5429:
+	* gcc.c-torture/compile/20020206-1.c: New test.
+
 2002-02-06  Nick Clifton  <nickc@cambridge.redhat.com>
 
 	* g++.dg/ext/align1.C: Do not use an explicit alignment value

gcc/testsuite/gcc.c-torture/compile/20020206-1.c

+/* Origin: PR optimization/5429 from Philipp Thomas <pthomas@suse.de>.  */
+/* This testcase caused ICE on IA-32 -O2 -march=i686 due to rtl sharing
+   problem in noce_process_if_block.  Fixed by
+   http://gcc.gnu.org/ml/gcc-patches/2002-01/msg02146.html.  */
+
+typedef struct {
+  unsigned char a;
+} A;
+
+unsigned int foo (A *x)
+{
+  unsigned char b[2] = { 0, 0 };
+  unsigned char c = 0;
+
+  c = (x->a) ? b[1] : b[0];
+
+  return (unsigned int) c;
+}