Index...

Index: gcc/tree-sra.c
===================================================================
--- gcc/tree-sra.c	(revision 187800)
+++ gcc/tree-sra.c	(working copy)
@@ -2096,9 +2096,12 @@ analyze_access_subtree (struct access *root, struc
 	  && (TREE_CODE (root->type) != INTEGER_TYPE
 	      || TYPE_PRECISION (root->type) != root->size)
 	  /* But leave bitfield accesses alone.  */
-	  && (root->offset % BITS_PER_UNIT) == 0)
+	  && (TREE_CODE (root->expr) != COMPONENT_REF
+	      || !DECL_BIT_FIELD (TREE_OPERAND (root->expr, 1))))
 	{
 	  tree rt = root->type;
+	  gcc_assert ((root->offset % BITS_PER_UNIT) == 0
+		      && (root->size % BITS_PER_UNIT) == 0);
 	  root->type = build_nonstandard_integer_type (root->size,
 						       TYPE_UNSIGNED (rt));
 	  root->expr = build_ref_for_offset (UNKNOWN_LOCATION,

From-SVN: r187805

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 82d084d..dfb46e4 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2012-05-23  Richard Guenther  <rguenther@suse.de>
+
+       PR tree-optimization/53438
+       * tree-sra.c (analyze_access_subtree): Correct bitfield exclusion.
+
 2012-05-23  Georg-Johann Lay  <avr@gjlay.de>
 
        PR target/53448

diff --git a/gcc/tree-sra.c b/gcc/tree-sra.c
index 3f84f6b..0438084 100644 (file)
--- a/gcc/tree-sra.c
+++ b/gcc/tree-sra.c
@@ -2096,9 +2096,12 @@ analyze_access_subtree (struct access *root, struct access *parent,
          && (TREE_CODE (root->type) != INTEGER_TYPE
              || TYPE_PRECISION (root->type) != root->size)
          /* But leave bitfield accesses alone.  */
-         && (root->offset % BITS_PER_UNIT) == 0)
+         && (TREE_CODE (root->expr) != COMPONENT_REF
+             || !DECL_BIT_FIELD (TREE_OPERAND (root->expr, 1))))
        {
          tree rt = root->type;
+         gcc_assert ((root->offset % BITS_PER_UNIT) == 0
+                     && (root->size % BITS_PER_UNIT) == 0);
          root->type = build_nonstandard_integer_type (root->size,
                                                       TYPE_UNSIGNED (rt));
          root->expr = build_ref_for_offset (UNKNOWN_LOCATION,