re PR target/35657 (Alignments of DFP types aren't consistent)

2008-03-27  H.J. Lu  <hongjiu.lu@intel.com>

	PR target/35657
	* config/i386/i386.c (ix86_function_arg_boundary): Align
	decimal floating point to its natural boundary.

From-SVN: r133649

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 529c23062a2ebb7f7f2dbfde69da39ff36e332cf..5c80fc941fcd9d227f39b964a0eaccb843660db0 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2008-03-27  H.J. Lu  <hongjiu.lu@intel.com>
+
+       PR target/35657
+       * config/i386/i386.c (ix86_function_arg_boundary): Align
+       decimal floating point to its natural boundary.
+
 2008-03-27  Richard Guenther  <rguenther@suse.de>
 
        PR middle-end/35716

diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 3dfb301962c49f9634d33dbb21cea4364ebba1b5..84a54d78bb039b000c13f76496493ecd00dae85f 100644 (file)
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -4577,7 +4577,8 @@ ix86_function_arg_boundary (enum machine_mode mode, tree type)
     align = GET_MODE_ALIGNMENT (mode);
   if (align < PARM_BOUNDARY)
     align = PARM_BOUNDARY;
-  if (!TARGET_64BIT)
+  /* Decimal floating point is aligned to its natural boundary.  */
+  if (!TARGET_64BIT && !VALID_DFP_MODE_P (mode))
     {
       /* i386 ABI defines all arguments to be 4 byte aligned.  We have to
         make an exception for SSE modes since these require 128bit