Some hooks return word_mode by default, which is incorrect for -m32
-mpowerpc64. This patch creates a new function rs6000_abi_word_mode
to implement these hooks, and does so.
This fixes 163 testuite FAILs.
Tested as usual; okay for mainline?
2015-01-09 Segher Boessenkool <seg...@kernel.crashing.org>
gcc/
* config/rs6000/rs6000.c (TARGET_LIBGCC_CMP_RETURN_MODE,
TARGET_LIBGCC_SHIFT_COUNT_MODE, TARGET_UNWIND_WORD_MODE): Implement
as ...
(rs6000_abi_word_mode): New function.
---
gcc/config/rs6000/rs6000.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index cc7b2a4..958a8b9 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -1663,6 +1663,13 @@ static const struct attribute_spec
rs6000_attribute_table[] =
#undef TARGET_ATOMIC_ASSIGN_EXPAND_FENV
#define TARGET_ATOMIC_ASSIGN_EXPAND_FENV rs6000_atomic_assign_expand_fenv
+
+#undef TARGET_LIBGCC_CMP_RETURN_MODE
+#define TARGET_LIBGCC_CMP_RETURN_MODE rs6000_abi_word_mode
+#undef TARGET_LIBGCC_SHIFT_COUNT_MODE
+#define TARGET_LIBGCC_SHIFT_COUNT_MODE rs6000_abi_word_mode
+#undef TARGET_UNWIND_WORD_MODE
+#define TARGET_UNWIND_WORD_MODE rs6000_abi_word_mode
/* Processor table. */
@@ -9293,8 +9300,18 @@ init_cumulative_args (CUMULATIVE_ARGS *cum, tree fntype,
}
}
+/* The mode the ABI uses for a word. This is not the same as word_mode
+ for -m32 -mpowerpc64. This is used to implement various target hooks. */
+
+static enum machine_mode
+rs6000_abi_word_mode (void)
+{
+ return TARGET_32BIT ? SImode : DImode;
+}
+
/* On rs6000, function arguments are promoted, as are function return
values. */
+
static machine_mode
rs6000_promote_function_mode (const_tree, machine_mode mode, int *,
const_tree, int)
--
1.8.1.4
