re PR rtl-optimization/56434 (document that __attribute__((__malloc__)) assumes retur...

2013-03-25  Richard Biener  <rguenther@suse.de>

	PR middle-end/56434
	* calls.c (expand_call): Use MALLOC_ABI_ALIGNMENT to annotate
	the pointer returned by calls with ECF_MALLOC set.

From-SVN: r197030

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 08458cec445ff66b35fd4bfc7a2abb04f8ff950b..31a026a2d1a4a9c308775b3b33441e600d3aaf38 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2013-03-25  Richard Biener  <rguenther@suse.de>
+
+       PR middle-end/56434
+       * calls.c (expand_call): Use MALLOC_ABI_ALIGNMENT to annotate
+       the pointer returned by calls with ECF_MALLOC set.
+
 2013-03-24  Uros Bizjak  <ubizjak@gmail.com>
 
        * config/i386/mmx.md (mov<mode>): Add ?!Ym,r and r,?!Ym alternatives.

diff --git a/gcc/calls.c b/gcc/calls.c
index a585390be5f58a144b5cdbf42542268fd7f8b7b9..cdab8e04617cf7246ccba5e0c8f66296d6182c6b 100644 (file)
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -3188,7 +3188,7 @@ expand_call (tree exp, rtx target, int ignore)
 
          /* The return value from a malloc-like function is a pointer.  */
          if (TREE_CODE (rettype) == POINTER_TYPE)
-           mark_reg_pointer (temp, BIGGEST_ALIGNMENT);
+           mark_reg_pointer (temp, MALLOC_ABI_ALIGNMENT);
 
          emit_move_insn (temp, valreg);