2007-08-14 Daniel Berlin <dberlin@dberlin.org>

	* tree-pass.h (PROP_pta): Removed.
	(TODO_rebuild_alias): New.
	(pass_may_alias): Removed.
	* tree-ssa-ccp.c (execute_fold_all_builtins): Only rebuild
	aliasing if we changed something.
	* tree-ssa-alias.c (compute_may_aliases): Make non-static.  Update
	SSA internally.
	(pass_may_alias): Removed.
	(create_structure_vars): Return TODO_rebuild_alias.
	* tree-ssa-pre.c (do_pre): Return TODO_rebuild_alias.
	* tree-sra.c (tree_sra): Only rebuild aliasing if something
	changed.
	(tree_sra_early): We never affect aliasing right now.
	* tree-flow.h (compute_may_aliases): New prototype.
	* passes.c: Remove pass_may_alias from the passes.
	(execute_function_todo): Support TODO_rebuild_alias.	



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@127491 138bc75d-0d04-0410-961f-82ee72b054a4

10 files changed, 28 insertions, 37 deletions

diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20031015-1.c b/gcc/testsuite/gcc.dg/tree-ssa/20031015-1.c
index a81edaf79f4..46a3be7ee22 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/20031015-1.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20031015-1.c
@@ -1,7 +1,7 @@
 /* With tree-ssa, gcc.dg/20000724-1.c failed because we missed
    a VOP of x in the asm statement.  */
 /* { dg-do compile } */
-/* { dg-options "-O1 -fdump-tree-alias1-vops" } */
+/* { dg-options "-O1 -fdump-tree-salias-vops" } */
 
 struct s { int a; };
 
@@ -14,5 +14,5 @@ main(void)
 }
 
 /* The VDEF comes from the initial assignment and the asm.  */
-/* { dg-final { scan-tree-dump-times "DEF" 2 "alias1" } } */
-/* { dg-final { cleanup-tree-dump "alias1" } } */
+/* { dg-final { scan-tree-dump-times "DEF" 2 "salias" } } */
+/* { dg-final { cleanup-tree-dump "salias" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20040517-1.c b/gcc/testsuite/gcc.dg/tree-ssa/20040517-1.c
index 85d5074f803..318ba7c1a19 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/20040517-1.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20040517-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O1 -fdump-tree-alias1-vops" } */
+/* { dg-options "-O1 -fdump-tree-salias-vops" } */
 extern void abort (void);
 int a; 
  
@@ -17,5 +17,5 @@ void bar (void)
    malloc functions may clobber global memory.  Only the function result
    does not alias any other pointer.
    Hence, we must have a VDEF for a before and after the call to foo().  */
-/* { dg-final { scan-tree-dump-times "VDEF" 2 "alias1"} } */
-/* { dg-final { cleanup-tree-dump "alias1" } } */
+/* { dg-final { scan-tree-dump-times "VDEF" 2 "salias"} } */
+/* { dg-final { cleanup-tree-dump "salias" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/20040911-1.c b/gcc/testsuite/gcc.dg/tree-ssa/20040911-1.c
index 3ddef717d8d..ac2b961d9dc 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/20040911-1.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/20040911-1.c
@@ -1,7 +1,7 @@
 /* Verify that points-to information is handled properly for PTR + OFFSET
    pointer arithmetics.  */
 /* { dg-do compile } */
-/* { dg-options "-O2 -fdump-tree-alias1-vops" } */
+/* { dg-options "-O2 -fdump-tree-salias-vops" } */
 
 char buf[4], *q;
 int foo (int i)
@@ -18,5 +18,5 @@ int foo (int i)
   return *p;
 }
 
-/* { dg-final { scan-tree-dump-not "VUSE <c" "alias1" } } */
-/* { dg-final { cleanup-tree-dump "alias1" } } */
+/* { dg-final { scan-tree-dump-not "VUSE <c" "salias" } } */
+/* { dg-final { cleanup-tree-dump "salias" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/alias-12.c b/gcc/testsuite/gcc.dg/tree-ssa/alias-12.c
index 409452686bb..970ddc7323e 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/alias-12.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/alias-12.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -fdump-tree-alias1-vops" } */
+/* { dg-options "-O2 -fdump-tree-salias-vops" } */
 
 struct {
 	int i;
@@ -13,6 +13,6 @@ int foo(int i)
 	return a.x[i];
 }
 
-/* { dg-final { scan-tree-dump "VDEF" "alias1" } } */
-/* { dg-final { cleanup-tree-dump "alias1" } } */
+/* { dg-final { scan-tree-dump "VDEF" "salias" } } */
+/* { dg-final { cleanup-tree-dump "salias" } } */
 
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/inline_asm-1.c b/gcc/testsuite/gcc.dg/tree-ssa/inline_asm-1.c
index e14c45e4eec..97c25b1be93 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/inline_asm-1.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/inline_asm-1.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O1 -fdump-tree-optimized -fdump-tree-alias1-vops" } */
+/* { dg-options "-O1 -fdump-tree-optimized -fdump-tree-salias-vops" } */
 /* Test to make sure that inline-asm causes a V_MAY_DEF and that we call test_function twice. */
 
 char test_function(void ) __attribute__((__pure__));
@@ -16,5 +16,5 @@ char f(char *a)
 /* { dg-final { cleanup-tree-dump "optimized" } } */
 
 /* There should a VDEF for the inline-asm.  */
-/* { dg-final { scan-tree-dump-times "VDEF" 1 "alias1"} } */
-/* { dg-final { cleanup-tree-dump "alias1" } } */
+/* { dg-final { scan-tree-dump-times "VDEF" 1 "salias"} } */
+/* { dg-final { cleanup-tree-dump "salias" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/inline_asm-2.c b/gcc/testsuite/gcc.dg/tree-ssa/inline_asm-2.c
index f3dd1fd671f..33443e0234d 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/inline_asm-2.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/inline_asm-2.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O1 -fdump-tree-alias1-vops" } */
+/* { dg-options "-O1 -fdump-tree-salias-vops" } */
 /* Test to make sure that inline-asm causes a V_MAY_DEF. */
 
 
@@ -14,5 +14,5 @@ void f(char *a)
 }
 
 /* There should a VDEF for the inline-asm and one for the link_error.  */
-/* { dg-final { scan-tree-dump-times "VDEF" 2 "alias1"} } */
-/* { dg-final { cleanup-tree-dump "alias1" } } */
+/* { dg-final { scan-tree-dump-times "VDEF" 2 "salias"} } */
+/* { dg-final { cleanup-tree-dump "salias" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr23382.c b/gcc/testsuite/gcc.dg/tree-ssa/pr23382.c
index 62b4051ee71..d0b208825bc 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pr23382.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr23382.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */ 
-/* { dg-options "-O2 -fdump-tree-alias-vops" } */
+/* { dg-options "-O2 -fdump-tree-salias-vops" } */
 struct a
 {
   int length;
@@ -13,14 +13,5 @@ int f(void)
    struct a *a = malloc(sizeof(struct a));
    return a->length;
 }
-/* { dg-final { scan-tree-dump-times "VDEF <HEAP" 1 "alias1"} } */
-/* { dg-final { scan-tree-dump-times "VDEF <HEAP" 1 "alias2"} } */
-/* { dg-final { scan-tree-dump-times "VDEF <HEAP" 1 "alias3"} } */
-/* { dg-final { scan-tree-dump-times "VDEF <HEAP" 1 "alias4"} } */
-/* { dg-final { scan-tree-dump-times "VDEF <HEAP" 1 "alias5"} } */
-/* { dg-final { cleanup-tree-dump "alias1" } } */
-/* { dg-final { cleanup-tree-dump "alias2" } } */
-/* { dg-final { cleanup-tree-dump "alias3" } } */
-/* { dg-final { cleanup-tree-dump "alias4" } } */
-/* { dg-final { cleanup-tree-dump "alias5" } } */
-/* { dg-final { cleanup-tree-dump "alias6" } } */
+/* { dg-final { scan-tree-dump-times "VDEF <HEAP" 1 "salias"} } */
+/* { dg-final { cleanup-tree-dump "salias" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pr26421.c b/gcc/testsuite/gcc.dg/tree-ssa/pr26421.c
index 4a6560ab102..d2d99baf0a1 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pr26421.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pr26421.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */
-/* { dg-options "-O2 -fdump-tree-alias1-vops" } */
+/* { dg-options "-O2 -fdump-tree-salias-vops" } */
 
 typedef struct {
   int i;
@@ -16,5 +16,5 @@ int foo(void)
   return a.i;
 }
 
-/* { dg-final { scan-tree-dump-times "VDEF" 2 "alias1" } } */
-/* { dg-final { cleanup-tree-dump "alias1" } } */
+/* { dg-final { scan-tree-dump-times "VDEF" 2 "salias" } } */
+/* { dg-final { cleanup-tree-dump "salias" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/pta-fp.c b/gcc/testsuite/gcc.dg/tree-ssa/pta-fp.c
index 4a64d2490f4..b9d84dffa8a 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/pta-fp.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/pta-fp.c
@@ -1,5 +1,5 @@
 /* { dg-do compile } */ 
-/* { dg-options "-O2 -fdump-tree-alias1" } */
+/* { dg-options "-O2 -fdump-tree-salias" } */
 extern double cos (double);
 extern double sin (double);
 double f(double a)
@@ -22,5 +22,5 @@ double f(double a)
 }
 /* The points-to set of the final function pointer should be "sin cos" */
 
-/* { dg-final { scan-tree-dump-times "{ sin cos }" 1 "alias1"} } */
-/* { dg-final { cleanup-tree-dump "alias1" } } */
+/* { dg-final { scan-tree-dump-times "{ sin cos }" 1 "salias"} } */
+/* { dg-final { cleanup-tree-dump "salias" } } */
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/salias-1.c b/gcc/testsuite/gcc.dg/tree-ssa/salias-1.c
index 9933cc8ca31..5e47db40a73 100644
--- a/gcc/testsuite/gcc.dg/tree-ssa/salias-1.c
+++ b/gcc/testsuite/gcc.dg/tree-ssa/salias-1.c
@@ -15,5 +15,5 @@ int foo(void)
   return a.b.c.j;
 }
 
-/* { dg-final { scan-tree-dump-times "SFT" 2 "salias" } } */
+/* { dg-final { scan-tree-dump-times "structure field tag SFT" 2 "salias" } } */
 /* { dg-final { cleanup-tree-dump "salias" } } */