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From 5a7ed15db57921c434b1b3002ecd6dfaf61d8d7e Mon Sep 17 00:00:00 2001
From: Stephan Linz <linz@li-pro.net>
Date: Wed, 27 Apr 2011 19:51:30 +0200
Subject: [PATCH 10/10] Disable fixed point support for avrtiny10 family
Not yet committed patch written by Eric Weddington.
Atmel adds preliminary support for fixed point arithmetic. This is
not supported for all the devices, even for avrtiny10 familiy.
Original ATMEL patch from:
http://distribute.atmel.no/tools/opensource/avr-gcc/gcc-4.4.3/62-gcc-4.4.3-avrtiny10-non-fixedpoint.patch
Signed-off-by: Stephan Linz <linz@li-pro.net>
---
gcc/config/avr/avr.c | 19 ++++++++++++++++---
gcc/config/fixed-bit.c | 4 ++--
2 files changed, 18 insertions(+), 5 deletions(-)
diff --git a/gcc/config/avr/avr.c b/gcc/config/avr/avr.c
index edbfd17..f7c6256 100644
--- a/gcc/config/avr/avr.c
+++ b/gcc/config/avr/avr.c
@@ -429,6 +429,16 @@ avr_scalar_mode_supported_p (enum machine_mode mode)
return default_scalar_mode_supported_p (mode);
}
+/* Implement TARGET_FIXED_POINT_SUPPORTED_P. */
+static bool
+avr_fixed_point_supported_p ()
+{
+ if (AVR_TINY)
+ return false;
+
+ return default_fixed_point_supported_p ();
+}
+
int avr_case_values_threshold = 30000;
/* Initialize the GCC target structure. */
@@ -482,15 +492,18 @@ int avr_case_values_threshold = 30000;
#undef TARGET_HARD_REGNO_SCRATCH_OK
#define TARGET_HARD_REGNO_SCRATCH_OK avr_hard_regno_scratch_ok
+#undef TARGET_SCALAR_MODE_SUPPORTED_P
+#define TARGET_SCALAR_MODE_SUPPORTED_P avr_scalar_mode_supported_p
+
+#undef TARGET_FIXED_POINT_SUPPORTED_P
+#define TARGET_FIXED_POINT_SUPPORTED_P avr_fixed_point_supported_p
+
#undef TARGET_INIT_BUILTINS
#define TARGET_INIT_BUILTINS avr_init_builtins
#undef TARGET_EXPAND_BUILTIN
#define TARGET_EXPAND_BUILTIN avr_expand_builtin
-#undef TARGET_SCALAR_MODE_SUPPORTED_P
-#define TARGET_SCALAR_MODE_SUPPORTED_P avr_scalar_mode_supported_p
-
struct gcc_target targetm = TARGET_INITIALIZER;
void
diff --git a/gcc/config/fixed-bit.c b/gcc/config/fixed-bit.c
index 40ac2e2..3513cf9 100644
--- a/gcc/config/fixed-bit.c
+++ b/gcc/config/fixed-bit.c
@@ -41,7 +41,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
Floating-point: SF, DF
Ex: If we define FROM_QQ and TO_SI, the conversion from QQ to SI is
generated. */
-
+#if !defined (__AVR_TINY__)
#include "tconfig.h"
#include "tsystem.h"
#include "coretypes.h"
@@ -1213,4 +1213,4 @@ SATFRACT (FROM_FLOAT_C_TYPE a)
return c;
}
#endif /* defined(SATFRACT) && FROM_TYPE == 3 && TO_TYPE == 4 */
-
+#endif /* __AVR_TINY__ */
--
1.6.0.4
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