nios2.h (FRAME_GROWS_DOWNWARD): Define to 1.

2017-10-28  Sandra Loosemore  <sandra@codesourcery.com>

	gcc/
	* config/nios2/nios2.h (FRAME_GROWS_DOWNWARD): Define to 1.
	* config/nios2/nios2.c (nios2_initial_elimination_offset):  Make
	FRAME_POINTER_REGNUM point at high end of local var area.

From-SVN: r254204

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b2e2783..baa2405 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2017-10-28  Sandra Loosemore  <sandra@codesourcery.com>
+
+       * config/nios2/nios2.h (FRAME_GROWS_DOWNWARD): Define to 1.
+       * config/nios2/nios2.c (nios2_initial_elimination_offset):  Make
+       FRAME_POINTER_REGNUM point at high end of local var area.
+
 2017-10-27  Eric Botcazou  <ebotcazou@adacore.com>
 
        * bb-reorder.c (find_traces_1_round): Fix off-by-one index.

diff --git a/gcc/config/nios2/nios2.c b/gcc/config/nios2/nios2.c
index cdd5e9a..5c70de7 100644 (file)
--- a/gcc/config/nios2/nios2.c
+++ b/gcc/config/nios2/nios2.c
@@ -1114,7 +1114,9 @@ nios2_initial_elimination_offset (int from, int to)
   switch (from)
     {
     case FRAME_POINTER_REGNUM:
-      offset = cfun->machine->args_size;
+      /* This is the high end of the local variable storage, not the
+        hard frame pointer.  */
+      offset = cfun->machine->args_size + cfun->machine->var_size;
       break;
 
     case ARG_POINTER_REGNUM:

diff --git a/gcc/config/nios2/nios2.h b/gcc/config/nios2/nios2.h
index 420543e..9fdff02 100644 (file)
--- a/gcc/config/nios2/nios2.h
+++ b/gcc/config/nios2/nios2.h
@@ -252,6 +252,7 @@ enum reg_class
 
 /* Stack layout.  */
 #define STACK_GROWS_DOWNWARD 1
+#define FRAME_GROWS_DOWNWARD 1
 #define FIRST_PARM_OFFSET(FUNDECL) 0
 
 /* Before the prologue, RA lives in r31.  */