re PR rtl-optimization/37408 (Invalid insn scheduling)

	PR rtl-optimization/37408
	* function.c (assign_parm_find_stack_rtl): Set correct MEM_SIZE
	if parm is promoted.

From-SVN: r140166

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ef34d8d541d479fd48dad6631f080ec54880b212..8a255250c73727069598defd8afa85861efd2a58 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-09-09  Jakub Jelinek  <jakub@redhat.com>
+
+       PR rtl-optimization/37408
+       * function.c (assign_parm_find_stack_rtl): Set correct MEM_SIZE
+       if parm is promoted.
+
 2008-09-09  Sebastian Pop  <sebastian.pop@amd.com>
 
        PR tree-optimization/37375

diff --git a/gcc/function.c b/gcc/function.c
index 8f614b69ed60ca9ddec23270ba83abda3eb92e3f..7cff900201420cb654ede4d13b850a5300de0aee 100644 (file)
--- a/gcc/function.c
+++ b/gcc/function.c
@@ -2332,6 +2332,11 @@ assign_parm_find_stack_rtl (tree parm, struct assign_parm_data_one *data)
   stack_parm = gen_rtx_MEM (data->promoted_mode, stack_parm);
 
   set_mem_attributes (stack_parm, parm, 1);
+  /* set_mem_attributes could set MEM_SIZE to the passed mode's size,
+     while promoted mode's size is needed.  */
+  if (data->promoted_mode != BLKmode
+      && data->promoted_mode != DECL_MODE (parm))
+    set_mem_size (stack_parm, GEN_INT (GET_MODE_SIZE (data->promoted_mode)));
 
   boundary = data->locate.boundary;
   align = BITS_PER_UNIT;