* config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): Disallow

	TImode for TARGET_32BIT.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@219754 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 55e0315..b4a620b 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2015-01-16  Segher Boessenkool  <segher@kernel.crashing.org>
 
+       * config/rs6000/rs6000.c (rs6000_scalar_mode_supported_p): Disallow
+       TImode for TARGET_32BIT.
+
+2015-01-16  Segher Boessenkool  <segher@kernel.crashing.org>
+
        * config/rs6000/rs6000.c (TARGET_LIBGCC_CMP_RETURN_MODE,
        TARGET_LIBGCC_SHIFT_COUNT_MODE, TARGET_UNWIND_WORD_MODE): Implement
        as ...

diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index 3a46333..3926b07 100644 (file)
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -31967,6 +31967,14 @@ rs6000_eh_return_filter_mode (void)
 static bool
 rs6000_scalar_mode_supported_p (machine_mode mode)
 {
+  /* -m32 does not support TImode.  This is the default, from
+     default_scalar_mode_supported_p.  For -m32 -mpowerpc64 we want the
+     same ABI as for -m32.  But default_scalar_mode_supported_p allows
+     integer modes of precision 2 * BITS_PER_WORD, which matches TImode
+     for -mpowerpc64.  */
+  if (TARGET_32BIT && mode == TImode)
+    return false;
+
   if (DECIMAL_FLOAT_MODE_P (mode))
     return default_decimal_float_supported_p ();
   else