PR tree-optimization/86613 - missing -Warray-bounds on a wide string access due to ccp folding

PR tree-optimization/86613 - missing -Warray-bounds on a wide string access due to ccp folding
PR tree-optimization/86611 - missing -Warray-bounds on a large negative index into a string in lp64

gcc/testsuite/ChangeLog:
	* gcc/testsuite/c-c++-common/Warray-bounds-2.c: Undefine macros and
	prune duplicate warnings.
	* gcc/testsuite/gcc.dg/Warray-bounds-31.c: Xfail test cases with
	data-model-dependencies.
	* gcc/testsuite/gcc.dg/Warray-bounds-32.c: Ditto.

From-SVN: r262906

gcc/testsuite/ChangeLog

+2018-07-20  Martin Sebor  <msebor@redhat.com>
+
+	PR tree-optimization/86613
+	PR tree-optimization/86611
+	* gcc/testsuite/c-c++-common/Warray-bounds-2.c: Undefine macros and
+	prune duplicate warnings.
+	* gcc/testsuite/gcc.dg/Warray-bounds-31.c: Xfail test cases with
+	data-model-dependencies.
+	* gcc/testsuite/gcc.dg/Warray-bounds-32.c: Ditto.
+
 2018-07-20  Richard Biener  <rguenther@suse.de>
 
 	PR debug/86585

gcc/testsuite/c-c++-common/Warray-bounds-2.c

@@ -11,6 +11,10 @@
 #include <stddef.h>
 #include <string.h>
 
+#undef memcpy
+#undef strcpy
+#undef strncpy
+
 #define MAX  (__SIZE_MAX__ / 2)
 
 void sink (void*);
@@ -210,3 +214,5 @@ void call_strncpy_dstarray_diff_neg (const char *s, size_t n)
 
   sink (&ar10);
 }
+
+/* { dg-prune-output "outside array bounds" } */

gcc/testsuite/gcc.dg/Warray-bounds-31.c

@@ -23,7 +23,7 @@ void sink (int, ...);
 
 void narrow_direct_cst (void)
 {
-  T (S1[MIN]);                /* { dg-warning "array subscript -\[0-9\]+ is below array bounds of .char\\\[2]" "" { xfail *-*-* } } */
+  T (S1[MIN]);                /* { dg-warning "array subscript -\[0-9\]+ is below array bounds of .char\\\[2]" "bug 86611" { xfail lp64 } } */
   T (S1[-1]);                 /* { dg-warning "array subscript -1 is below array bounds of .char\\\[2]" } */
   T (S1[0]);
   T (S1[1]);
@@ -37,7 +37,7 @@ void narrow_direct_cst (void)
   T (&S1[3]);                 /* { dg-warning "array subscript 3 is above array bounds of .char\\\[2]" } */
   T (&S1[MAX]);               /* { dg-warning "array subscript \[0-9\]+ is above array bounds of .char\\\[2]" } */
 
-  T (S9[MIN]);                /* { dg-warning "array subscript -\[0-9\]+ is below array bounds of .char\\\[10]" "" { xfail *-*-* } } */
+  T (S9[MIN]);                /* { dg-warning "array subscript -\[0-9\]+ is below array bounds of .char\\\[10]" "xfail lp64" { xfail lp64 } } */
   T (S9[-1]);                 /* { dg-warning "array subscript -1 is below array bounds of .char\\\[10]" } */
   T (S9[9]);
   T (S9[10]);                 /* { dg-warning "array subscript 10 is above array bounds of .char\\\[10]" } */
@@ -69,7 +69,7 @@ void narrow_ptr_index_cst (void)
 {
   const char *p = S7;
 
-  T (p[MIN + 1]);             /* { dg-warning "array subscript -\[0-9\]+ is outside array bounds of .char\\\[8]." "bug 84047" { xfail *-*-* } } */
+  T (p[MIN + 1]);             /* { dg-warning "array subscript -\[0-9\]+ is outside array bounds of .char\\\[8]." "bug 86611" { xfail lp64 } } */
   T (p[-1]);                  /* { dg-warning "array subscript -1 is outside array bounds of .char\\\[8]." } */
   T (p[0]);
   T (p[1]);
@@ -87,7 +87,7 @@ void narrow_ptr_index_cst (void)
   T (&p[MAX]);                /* { dg-warning "array subscript \[0-9\]+ is \(above|outside\) array bounds of .char\\\[8]." } */
 
   const char *q = S8 + 4;
-  T (q[MIN + 1]);             /* { dg-warning "array subscript -?\[0-9\]+ is outside array bounds of .char\\\[9]." "bug 84047" { xfail *-*-* } } */
+  T (q[MIN + 1]);             /* { dg-warning "array subscript -?\[0-9\]+ is outside array bounds of .char\\\[9]." "bug 86611" { xfail lp64 } } */
   T (q[-5]);                  /* { dg-warning "array subscript -1 is outside array bounds of .char\\\[9]." } */
   T (q[-4]);
   T (q[0]);
@@ -97,7 +97,7 @@ void narrow_ptr_index_cst (void)
   T (q[5]);                   /* { dg-warning "array subscript 9 is outside array bounds of .char\\\[9]." } */
   T (q[99]);                  /* { dg-warning "array subscript 103 is outside array bounds of .char\\\[9]." } */
   T (q[MAX - 4]);             /* { dg-warning "array subscript \[0-9\]+ is outside array bounds of .char\\\[9]." } */
-  T (q[MAX - 3]);             /* { dg-warning "array subscript \[0-9\]+ is outside array bounds of .char\\\[9]." "bug 84047" { xfail *-*-* } } */
+  T (q[MAX - 3]);             /* { dg-warning "array subscript -?\[0-9\]+ is outside array bounds of .char\\\[9]." "bug 86611" { xfail lp64 } } */
 
   T (&q[MIN + 1]);            /* { dg-warning "array subscript -?\[0-9\]+ is \(below|outside\) array bounds of .char\\\[9]." } */
   T (&q[-5]);                 /* { dg-warning "array subscript -1 is \(below|outside\) array bounds of .char\\\[9]." } */

gcc/testsuite/gcc.dg/Warray-bounds-32.c

@@ -25,11 +25,10 @@ void sink (int);
 
 void wide_direct_cst (void)
 {
-  T (W9[MIN]);                /* { dg-warning "array subscript -\[0-9\]+ is below array bounds of .\[a-z \]+\\\[10]" "" } */
+  T (W9[MIN]);                /* { dg-warning "array subscript -\[0-9\]+ is below array bounds of .\[a-z \]+\\\[10]" "bug 86611" { xfail ilp32 } } */
   T (W9[-1]);                 /* { dg-warning "array subscript -1 is below array bounds of .\[a-z \]+\\\[10]" } */
   T (W9[11]);                 /* { dg-warning "array subscript 11 is above array bounds of .\[a-z \]+\\\[10]" } */
   T (W9[MAX]);                /* { dg-warning "array subscript \[0-9\]+ is above array bounds of .\[a-z \]+\\\[10]" } */
-
 }
 
 void wide_ptr_deref_cst (void)