testsuite: new require effective target indirect_calls

    
This patch adds a new dg_require_effective_target procedure to the
testsuite infrastructure: indirect_calls.  This new function tells
whether a target supports calls to non-constant call targets.
    
This patch also annotates the tests in the gcc.c-torture testuite that
require support for indirect calls.
    
    gcc/ChangeLog:
    
            * doc/sourcebuild.texi (Effective-Target Keywords): Document
            indirect_calls.
    
    gcc/testsuite/ChangeLog:
    
            * lib/target-supports.exp (check_effective_target_indirect_calls):
            New proc.
            * gcc.c-torture/compile/20010102-1.c: Annotate with
            dg-require-effective-target indirect_calls.
            * gcc.c-torture/compile/20010107-1.c: Likewise.
            * gcc.c-torture/compile/20011109-1.c: Likewise.
            * gcc.c-torture/compile/20011218-1.c: Likewise.
            * gcc.c-torture/compile/20011229-1.c: Likewise.
            * gcc.c-torture/compile/20020129-1.c: Likewise.
            * gcc.c-torture/compile/20020320-1.c: Likewise.
            * gcc.c-torture/compile/20020706-1.c: Likewise.
            * gcc.c-torture/compile/20020706-2.c: Likewise.
            * gcc.c-torture/compile/20021205-1.c: Likewise.
            * gcc.c-torture/compile/20030921-1.c: Likewise.
            * gcc.c-torture/compile/20031023-1.c: Likewise.
            * gcc.c-torture/compile/20031023-2.c: Likewise.
            * gcc.c-torture/compile/20031023-3.c: Likewise.
            * gcc.c-torture/compile/20031023-4.c: Likewise.
            * gcc.c-torture/compile/20040614-1.c: Likewise.
            * gcc.c-torture/compile/20040909-1.c: Likewise.
            * gcc.c-torture/compile/20050122-1.c: Likewise.
            * gcc.c-torture/compile/20050202-1.c: Likewise.
            * gcc.c-torture/compile/20060208-1.c: Likewise.
            * gcc.c-torture/compile/20081108-1.c: Likewise.
            * gcc.c-torture/compile/20150327.c: Likewise.
            * gcc.c-torture/compile/920428-2.c: Likewise.
            * gcc.c-torture/compile/920928-5.c: Likewise.
            * gcc.c-torture/compile/930117-1.c: Likewise.
            * gcc.c-torture/compile/930607-1.c: Likewise.
            * gcc.c-torture/compile/991213-2.c: Likewise.
            * gcc.c-torture/compile/callind.c: Likewise.
            * gcc.c-torture/compile/calls-void.c: Likewise.
            * gcc.c-torture/compile/calls.c: Likewise.
            * gcc.c-torture/compile/pr21840.c: Likewise.
            * gcc.c-torture/compile/pr32139.c: Likewise.
            * gcc.c-torture/compile/pr35607.c: Likewise.
            * gcc.c-torture/compile/pr37433-1.c: Likewise.
            * gcc.c-torture/compile/pr37433.c: Likewise.
            * gcc.c-torture/compile/pr39941.c: Likewise.
            * gcc.c-torture/compile/pr40080.c: Likewise.
            * gcc.c-torture/compile/pr43635.c: Likewise.
            * gcc.c-torture/compile/pr43791.c: Likewise.
            * gcc.c-torture/compile/pr43845.c: Likewise.
            * gcc.c-torture/compile/pr44043.c: Likewise.
            * gcc.c-torture/compile/pr51694.c: Likewise.
            * gcc.c-torture/compile/pr77754-2.c: Likewise.
            * gcc.c-torture/compile/pr77754-3.c: Likewise.
            * gcc.c-torture/compile/pr77754-4.c: Likewise.
            * gcc.c-torture/compile/pr89663-2.c: Likewise.
            * gcc.c-torture/compile/pta-1.c: Likewise.
            * gcc.c-torture/compile/stack-check-1.c: Likewise.
            * gcc.dg/Walloc-size-larger-than-18.c: Likewise.

From-SVN: r275505

gcc/ChangeLog

 2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
 
+	* doc/sourcebuild.texi (Effective-Target Keywords): Document
+	indirect_calls.
+
+2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
+
 	* opt-functions.awk (integer_range_info): Make sure values are in
 	numeric context before operating with them.
 

gcc/doc/sourcebuild.texi

@@ -2374,6 +2374,10 @@ Target supports @code{wchar_t} that is compatible with @code{char32_t}.
 
 @item comdat_group
 Target uses comdat groups.
+
+@item indirect_calls
+Target supports indirect calls, i.e. calls where the target is not
+constant.
 @end table
 
 @subsubsection Local to tests in @code{gcc.target/i386}

gcc/testsuite/ChangeLog

 2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
 
+	* lib/target-supports.exp (check_effective_target_indirect_calls):
+	New proc.
+	* gcc.c-torture/compile/20010102-1.c: Annotate with
+	dg-require-effective-target indirect_calls.
+	* gcc.c-torture/compile/20010107-1.c: Likewise.
+	* gcc.c-torture/compile/20011109-1.c: Likewise.
+	* gcc.c-torture/compile/20011218-1.c: Likewise.
+	* gcc.c-torture/compile/20011229-1.c: Likewise.
+	* gcc.c-torture/compile/20020129-1.c: Likewise.
+	* gcc.c-torture/compile/20020320-1.c: Likewise.
+	* gcc.c-torture/compile/20020706-1.c: Likewise.
+	* gcc.c-torture/compile/20020706-2.c: Likewise.
+	* gcc.c-torture/compile/20021205-1.c: Likewise.
+	* gcc.c-torture/compile/20030921-1.c: Likewise.
+	* gcc.c-torture/compile/20031023-1.c: Likewise.
+	* gcc.c-torture/compile/20031023-2.c: Likewise.
+	* gcc.c-torture/compile/20031023-3.c: Likewise.
+	* gcc.c-torture/compile/20031023-4.c: Likewise.
+	* gcc.c-torture/compile/20040614-1.c: Likewise.
+	* gcc.c-torture/compile/20040909-1.c: Likewise.
+	* gcc.c-torture/compile/20050122-1.c: Likewise.
+	* gcc.c-torture/compile/20050202-1.c: Likewise.
+	* gcc.c-torture/compile/20060208-1.c: Likewise.
+	* gcc.c-torture/compile/20081108-1.c: Likewise.
+	* gcc.c-torture/compile/20150327.c: Likewise.
+	* gcc.c-torture/compile/920428-2.c: Likewise.
+	* gcc.c-torture/compile/920928-5.c: Likewise.
+	* gcc.c-torture/compile/930117-1.c: Likewise.
+	* gcc.c-torture/compile/930607-1.c: Likewise.
+	* gcc.c-torture/compile/991213-2.c: Likewise.
+	* gcc.c-torture/compile/callind.c: Likewise.
+	* gcc.c-torture/compile/calls-void.c: Likewise.
+	* gcc.c-torture/compile/calls.c: Likewise.
+	* gcc.c-torture/compile/pr21840.c: Likewise.
+	* gcc.c-torture/compile/pr32139.c: Likewise.
+	* gcc.c-torture/compile/pr35607.c: Likewise.
+	* gcc.c-torture/compile/pr37433-1.c: Likewise.
+	* gcc.c-torture/compile/pr37433.c: Likewise.
+	* gcc.c-torture/compile/pr39941.c: Likewise.
+	* gcc.c-torture/compile/pr40080.c: Likewise.
+	* gcc.c-torture/compile/pr43635.c: Likewise.
+	* gcc.c-torture/compile/pr43791.c: Likewise.
+	* gcc.c-torture/compile/pr43845.c: Likewise.
+	* gcc.c-torture/compile/pr44043.c: Likewise.
+	* gcc.c-torture/compile/pr51694.c: Likewise.
+	* gcc.c-torture/compile/pr77754-2.c: Likewise.
+	* gcc.c-torture/compile/pr77754-3.c: Likewise.
+	* gcc.c-torture/compile/pr77754-4.c: Likewise.
+	* gcc.c-torture/compile/pr89663-2.c: Likewise.
+	* gcc.c-torture/compile/pta-1.c: Likewise.
+	* gcc.c-torture/compile/stack-check-1.c: Likewise.
+	* gcc.dg/Walloc-size-larger-than-18.c: Likewise.
+
+2019-09-09  Jose E. Marchesi  <jose.marchesi@oracle.com>
+
 	* gcc.c-torture/compile/20000609-1.c: Annotate with
 	dg-require-stack-size.
 	* gcc.c-torture/compile/20000804-1.c: Likewise.

gcc/testsuite/gcc.c-torture/compile/20010102-1.c

@@ -4,6 +4,8 @@
 
    Copyright (C) 2001  Free Software Foundation.  */
 
+/* { dg-require-effective-target indirect_calls } */
+
 # define PTR_INT_TYPE __PTRDIFF_TYPE__
 
 struct _obstack_chunk

gcc/testsuite/gcc.c-torture/compile/20010107-1.c

+/* { dg-require-effective-target indirect_calls } */
+
 unsigned long x[4];
 
 void foo(void)

gcc/testsuite/gcc.c-torture/compile/20011109-1.c

+/* { dg-require-effective-target indirect_calls } */
+
 typedef struct { short x[4]; } S;
 typedef struct { unsigned int a, b, c; S *d; } T;
 

gcc/testsuite/gcc.c-torture/compile/20011218-1.c

@@ -2,6 +2,8 @@
    for the indirect call was exposed too early and reload couldn't
    allocate it for multiplication and division.  */
 
+/* { dg-require-effective-target indirect_calls } */
+
 struct S {
   int a, b;
   void (*f) (long, int);

gcc/testsuite/gcc.c-torture/compile/20011229-1.c

 /* ICE: call insn does not satisfy its constraints, MMIX port.
    Origin: ghostscript-6.52, reduction from hp@bitrange.com.  */
+
+/* { dg-require-effective-target indirect_calls } */
+
 struct s0
 {
   void (*init_color)(void *, void *);

gcc/testsuite/gcc.c-torture/compile/20020129-1.c

 /* Test call to static variable.  */
 
+/* { dg-require-effective-target indirect_calls } */
+
 typedef struct
 {
   long long a[10];

gcc/testsuite/gcc.c-torture/compile/20020320-1.c

@@ -2,6 +2,8 @@
    This testcase caused infinite loop in flow (several places),
    because flow assumes gen_jump generates simple_jump_p.  */
 
+/* { dg-require-effective-target indirect_calls } */
+
 typedef void (*T) (void);
 extern T x[];
 

gcc/testsuite/gcc.c-torture/compile/20020706-1.c

 // Contributed by Alexandre Oliva <aoliva@redhat.com>
 // From Red Hat case 106165.
 
+/* { dg-require-effective-target indirect_calls } */
+
 typedef struct s1
 {
   unsigned short v1;

gcc/testsuite/gcc.c-torture/compile/20020706-2.c

 // Contributed by Alexandre Oliva <aoliva@redhat.com>
 // From Red Hat case 106165.
 
+/* { dg-require-effective-target indirect_calls } */
+
 typedef unsigned short (FUNC_P) (void *, unsigned char *, unsigned short);
 
 void crashIt(int id, FUNC_P *func, unsigned char *funcparm)

gcc/testsuite/gcc.c-torture/compile/20021205-1.c

+/* { dg-require-effective-target indirect_calls } */
+
 typedef struct x x;
 extern void *baz(char *);
 struct x { char * (*bar) (int); };

gcc/testsuite/gcc.c-torture/compile/20030921-1.c

@@ -2,6 +2,7 @@
    f is not being emitted. TREE_SYMBOL_REFERENCED was being set
    instead of calling mark_referenced.  */
 
+/* { dg-require-effective-target indirect_calls } */
 
 static void f(void);
 void g(void (*x) (void)){x();}

gcc/testsuite/gcc.c-torture/compile/20031023-1.c

 /* Declaration of the frame size doesn't work on ptx.  */
 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-require-effective-target indirect_calls } */
+
 #ifndef ASIZE
 # define ASIZE 0x10000000000UL
 #endif

gcc/testsuite/gcc.c-torture/compile/20031023-2.c

 /* Declaration of the frame size doesn't work on ptx.  */
 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-require-effective-target indirect_calls } */
+
 #define ASIZE 0x1000000000UL
 #include "20031023-1.c"

gcc/testsuite/gcc.c-torture/compile/20031023-3.c

 /* Declaration of the frame size doesn't work on ptx.  */
 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-require-effective-target indirect_calls } */
+
 #define ASIZE 0x100000000UL
 #include "20031023-1.c"

gcc/testsuite/gcc.c-torture/compile/20031023-4.c

+/* { dg-require-effective-target indirect_calls } */
+
 #define ASIZE 0x80000000UL
 #include "20031023-1.c"

gcc/testsuite/gcc.c-torture/compile/20040614-1.c

 /* { dg-require-effective-target label_values } */
+/* { dg-require-effective-target indirect_calls } */
 
 void f(int r1, int *fp) 
 {     

gcc/testsuite/gcc.c-torture/compile/20040909-1.c

+/* { dg-require-effective-target indirect_calls } */
+
 static __inline__ int
 one_utf8_to_utf16 () { }
 

gcc/testsuite/gcc.c-torture/compile/20050122-1.c

 /* From PR 19484.  */
+/* { dg-require-effective-target indirect_calls } */
+
 extern void foo (void) __attribute__((noreturn));
 int n;
 

gcc/testsuite/gcc.c-torture/compile/20050202-1.c

 /* From PR 19578.  */
+/* { dg-require-effective-target indirect_calls } */
+
 extern void foo (void) __attribute__((noreturn));
 
 void

gcc/testsuite/gcc.c-torture/compile/20060208-1.c

 /* PR middle-end/26092 */
+/* { dg-require-effective-target indirect_calls } */
 /* { dg-skip-if "can't take address of malloc" { nvptx-*-* } } */
+
 typedef __SIZE_TYPE__ size_t;
 extern void *malloc (size_t);
 

gcc/testsuite/gcc.c-torture/compile/20081108-1.c

+/* { dg-require-effective-target indirect_calls } */
+
 /* Test function call with function designator involving VLA
    side-effects does not lead to an ICE.  */
 

gcc/testsuite/gcc.c-torture/compile/20150327.c

+/* { dg-require-effective-target indirect_calls } */
+
 int a;
 int (*b)(), (*c)();
 int fn1(int p1) {

gcc/testsuite/gcc.c-torture/compile/920428-2.c

+/* { dg-require-effective-target indirect_calls } */
+
 double sin(double x);
 double cos(double x);
 double tan(double x);

gcc/testsuite/gcc.c-torture/compile/920928-5.c

 /* REPRODUCED:CC1:SIGNAL MACHINE:m68k OPTIONS:-fpcc-struct-return */
+
+/* { dg-require-effective-target indirect_calls } */
+
 struct b{};
 f(struct b(*f)())
 {

gcc/testsuite/gcc.c-torture/compile/930117-1.c

+/* { dg-require-effective-target indirect_calls } */
+
 f(x)
 {
   (*(void (*)())&x)();

gcc/testsuite/gcc.c-torture/compile/930607-1.c

+/* { dg-require-effective-target indirect_calls } */
+
 typedef void f ();
 typedef f *pf;
 long long i;

gcc/testsuite/gcc.c-torture/compile/991213-2.c

+/* { dg-require-effective-target indirect_calls } */
+
 typedef long		__kernel_time_t;
 typedef __kernel_time_t		time_t;
 time2(

gcc/testsuite/gcc.c-torture/compile/callind.c

+/* { dg-require-effective-target indirect_calls } */
+
 bar (foo, a)
      int (**foo) ();
 {

gcc/testsuite/gcc.c-torture/compile/calls-void.c

 /* { dg-require-effective-target ptr32plus } */
 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-require-effective-target indirect_calls } */
 
 typedef void  (*T)(void);
 f1 ()

gcc/testsuite/gcc.c-torture/compile/calls.c

 /* { dg-require-effective-target ptr32plus } */
 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-require-effective-target indirect_calls } */
 
 typedef void  *(*T)(void);
 f1 ()

gcc/testsuite/gcc.c-torture/compile/pr21840.c

+/* { dg-require-effective-target indirect_calls } */
+
 void fn_show_state(void);
 typedef void (*fn_handler_fn)(void);
 static fn_handler_fn fn_handler[1];

gcc/testsuite/gcc.c-torture/compile/pr32139.c

 /* PR tree-optimization/32139 */
+/* { dg-require-effective-target indirect_calls } */
+
 int foo (void);
 int bar (void) __attribute__ ((const));
 

gcc/testsuite/gcc.c-torture/compile/pr35607.c

+/* { dg-require-effective-target indirect_calls } */
+
 extern void (*__fini_array_start []) (void);
 extern void (*__fini_array_end []) (void);
 void

gcc/testsuite/gcc.c-torture/compile/pr37433-1.c

+/* { dg-require-effective-target indirect_calls } */
+
 void regex_subst(void)
 {
   const void *subst = "";

gcc/testsuite/gcc.c-torture/compile/pr37433.c

+/* { dg-require-effective-target indirect_calls } */
+
 int regex_subst(void)
 {
   const void *subst = "";

gcc/testsuite/gcc.c-torture/compile/pr39941.c

+/* { dg-require-effective-target indirect_calls } */
+
 typedef void (*entry_func) (void) __attribute__ ((noreturn));
 extern entry_func entry_addr;
 static void bsd_boot_entry (void)

gcc/testsuite/gcc.c-torture/compile/pr40080.c

+/* { dg-require-effective-target indirect_calls } */
+
 extern void *ff(void*,int);
 
 struct lpgl { struct lpgl *next; };

gcc/testsuite/gcc.c-torture/compile/pr43635.c

 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-require-effective-target indirect_calls } */
+
 extern void d (void);
 
 void (*foo (void)) (float)

gcc/testsuite/gcc.c-torture/compile/pr43791.c

+/* { dg-require-effective-target indirect_calls } */
+
 int owner();
 int clear();
 

gcc/testsuite/gcc.c-torture/compile/pr43845.c

+/* { dg-require-effective-target indirect_calls } */
+
 typedef int __attribute__ ((const)) (*x264_pixel_cmp_t)(void);
 
 typedef struct {

gcc/testsuite/gcc.c-torture/compile/pr44043.c

+/* { dg-require-effective-target indirect_calls } */
+
 typedef unsigned char __u8;
 typedef unsigned short __u16;
 typedef unsigned int __u32;

gcc/testsuite/gcc.c-torture/compile/pr51694.c

 /* { dg-require-effective-target untyped_assembly } */
+/* { dg-require-effective-target indirect_calls } */
+
 void
 foo (x, fn)
   void (*fn) ();

gcc/testsuite/gcc.c-torture/compile/pr77754-2.c

 // { dg-require-effective-target alloca }
+// { dg-require-effective-target indirect_calls }
 /* PR c/77754 */
 
 int fn3();

gcc/testsuite/gcc.c-torture/compile/pr77754-3.c

 // { dg-require-effective-target alloca }
+// { dg-require-effective-target indirect_calls }
 /* PR c/77754 */
 
 int fn3();

gcc/testsuite/gcc.c-torture/compile/pr77754-4.c

 // { dg-require-effective-target alloca }
+// { dg-require-effective-target indirect_calls }
 /* PR c/77754 */
 
 int fn3();

gcc/testsuite/gcc.c-torture/compile/pr89663-2.c

 /* PR middle-end/89663 */
+/* { dg-require-effective-target indirect_calls } */
 
 int irint (double);
 long lrint (double);

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

+/* { dg-require-effective-target indirect_calls } */
+
 typedef struct JSObject JSObject;
 typedef struct JSObjectMap *(*JSNewObjectMapOp) (JSObject *obj);
 typedef JSObject *(*JSGetMethodOp) (JSObject *obj);

gcc/testsuite/gcc.c-torture/compile/stack-check-1.c

+/* { dg-require-effective-target indirect_calls } */
 /* { dg-require-effective-target untyped_assembly } */
 /* { dg-require-stack-check "" } */
 /* { dg-additional-options "-fstack-check" } */

gcc/testsuite/gcc.dg/Walloc-size-larger-than-18.c

@@ -4,6 +4,7 @@
    with zero or excessive size trigger either -Walloc-zero or
    -Walloc-size-larger-than warnings.
    { dg-do compile }
+   { dg-require-effective-target indirect_calls }
    { dg-options "-O2 -Wall -Walloc-zero -ftrack-macro-expansion=0" } */
 
 #define ATTR(...) __attribute__ ((__VA_ARGS__))

gcc/testsuite/lib/target-supports.exp

@@ -9502,3 +9502,11 @@ proc check_effective_target_mfentry { } {
 	        void foo (void) { }
     } "-mfentry"]
 }
+
+# Return 1 if this target supports indirect calls
+proc check_effective_target_indirect_calls { } {
+  if { [istarget bpf-*-*] } {
+        return 0
+  }
+  return 1
+}