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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
This commit is contained in:
Richard Guenther 2012-05-23 15:53:59 +00:00 committed by William Schmidt
parent b49eb0fff1
commit e8257960f0
2 changed files with 9 additions and 1 deletions
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5
gcc/ChangeLog
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@ -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

5
gcc/tree-sra.c
View File

@ -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,