AVR: Use types of exact size and signedness in built-ins.

The AVR built-ins used types like "int" or "char" that don't
have exact signedness or type size which depend on -mint8
and -f[no-][un-]signed-char etc.  As the built-ins are modelling
machine instructions of given type sizes and signedness, also
use according types in their prototypes.

gcc/
	* config/avr/builtins.def: Use function prototypes of given size
	and signedness.
	* config/avr/avr.cc (avr_init_builtins): Adjust types required
	by builtins.def.
	* doc/extend.texi (AVR Built-in Functions): Adjust accordingly.

1 files changed, 7 insertions, 9 deletions

diff --git a/gcc/doc/extend.texi b/gcc/doc/extend.texi
index b2383b5..2135dfd 100644
--- a/gcc/doc/extend.texi
+++ b/gcc/doc/extend.texi
@@ -16783,32 +16783,30 @@ or if not a specific built-in is implemented or not. For example, if
 @code{__BUILTIN_AVR_NOP} is defined to @code{1} and undefined otherwise.
 
 @defbuiltin{void __builtin_avr_nop (void)}
-@defbuiltinx{void __builtin_avr_nop (void)}
 @defbuiltinx{void __builtin_avr_sei (void)}
 @defbuiltinx{void __builtin_avr_cli (void)}
 @defbuiltinx{void __builtin_avr_sleep (void)}
 @defbuiltinx{void __builtin_avr_wdr (void)}
-@defbuiltinx{{unsigned char} __builtin_avr_swap (unsigned char)}
-@defbuiltinx{{unsigned int} __builtin_avr_fmul (unsigned char, unsigned char)}
-@defbuiltinx{int __builtin_avr_fmuls (char, char)}
-@defbuiltinx{int __builtin_avr_fmulsu (char, unsigned char)}
+@defbuiltinx{uint8_t __builtin_avr_swap (uint8_t)}
+@defbuiltinx{uint16_t __builtin_avr_fmul (uint8_t, uint8_t)}
+@defbuiltinx{int16_t __builtin_avr_fmuls (int8_t, int8_t)}
+@defbuiltinx{int16_t __builtin_avr_fmulsu (int8_t, uint8_t)}
 
 These built-in functions map to the respective machine
 instruction, i.e.@: @code{nop}, @code{sei}, @code{cli}, @code{sleep},
 @code{wdr}, @code{swap}, @code{fmul}, @code{fmuls}
 resp. @code{fmulsu}. The three @code{fmul*} built-ins are implemented
 as library call if no hardware multiplier is available.
-
 @enddefbuiltin
 
-@defbuiltin{void __builtin_avr_delay_cycles (unsigned long @var{ticks})}
+@defbuiltin{void __builtin_avr_delay_cycles (uint32_t @var{ticks})}
 Delay execution for @var{ticks} cycles. Note that this
 built-in does not take into account the effect of interrupts that
 might increase delay time. @var{ticks} must be a compile-time
 integer constant; delays with a variable number of cycles are not supported.
 @enddefbuiltin
 
-@defbuiltin{char __builtin_avr_flash_segment (const __memx void*)}
+@defbuiltin{int8_t __builtin_avr_flash_segment (const __memx void*)}
 This built-in takes a byte address to the 24-bit
 @ref{AVR Named Address Spaces,address space} @code{__memx} and returns
 the number of the flash segment (the 64 KiB chunk) where the address
@@ -16862,7 +16860,7 @@ __builtin_avr_insert_bits (0x01234567, bits, 0);
 @end smallexample
 @enddefbuiltin
 
-@defbuiltin{void __builtin_avr_nops (unsigned @var{count})}
+@defbuiltin{void __builtin_avr_nops (uint16_t @var{count})}
 Insert @var{count} @code{NOP} instructions.
 The number of instructions must be a compile-time integer constant.
 @enddefbuiltin