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MIPS: math-emu: Mark exception handling functions as __cold.

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Optimizes the code flow and shaves of half a percent of the math-emu
code size.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle 2014-04-16 00:47:59 +02:00
parent f80cc08d78
commit cae55066cb
7 changed files with 23 additions and 16 deletions
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5
arch/mips/math-emu/ieee754.c
View File

@ -28,6 +28,7 @@
* ########################################################################
*/
#include <linux/compiler.h>
#include "ieee754int.h"
#include "ieee754sp.h"
@ -96,7 +97,7 @@ const struct ieee754sp_konst __ieee754sp_spcvals[] = {
};
int ieee754si_xcpt(int r, const char *op, ...)
int __cold ieee754si_xcpt(int r, const char *op, ...)
{
struct ieee754xctx ax;
@ -111,7 +112,7 @@ int ieee754si_xcpt(int r, const char *op, ...)
return ax.rv.si;
}
s64 ieee754di_xcpt(s64 r, const char *op, ...)
s64 __cold ieee754di_xcpt(s64 r, const char *op, ...)
{
struct ieee754xctx ax;

3
arch/mips/math-emu/ieee754.h
View File

@ -24,6 +24,7 @@
#ifndef __ARCH_MIPS_MATH_EMU_IEEE754_H
#define __ARCH_MIPS_MATH_EMU_IEEE754_H
#include <linux/compiler.h>
#include <asm/byteorder.h>
#include <linux/types.h>
#include <linux/sched.h>
@ -421,7 +422,7 @@ struct ieee754xctx {
#define IEEE754_RT_SI 3
#define IEEE754_RT_DI 4
extern void ieee754_xcpt(struct ieee754xctx *xcp);
extern void __cold ieee754_xcpt(struct ieee754xctx *xcp);
/* compat */
#define ieee754dp_fix(x) ieee754dp_tint(x)

5
arch/mips/math-emu/ieee754dp.c
View File

@ -23,6 +23,7 @@
* ########################################################################
*/
#include <linux/compiler.h>
#include "ieee754dp.h"
@ -45,7 +46,7 @@ int ieee754dp_issnan(ieee754dp x)
}
ieee754dp ieee754dp_xcpt(ieee754dp r, const char *op, ...)
ieee754dp __cold ieee754dp_xcpt(ieee754dp r, const char *op, ...)
{
struct ieee754xctx ax;
if (!TSTX())
@ -60,7 +61,7 @@ ieee754dp ieee754dp_xcpt(ieee754dp r, const char *op, ...)
return ax.rv.dp;
}
ieee754dp ieee754dp_nanxcpt(ieee754dp r, const char *op, ...)
ieee754dp __cold ieee754dp_nanxcpt(ieee754dp r, const char *op, ...)
{
struct ieee754xctx ax;

9
arch/mips/math-emu/ieee754dp.h
View File

@ -24,6 +24,7 @@
* ########################################################################
*/
#include <linux/compiler.h>
#include "ieee754int.h"
@ -62,10 +63,10 @@ static inline ieee754dp builddp(int s, int bx, u64 m)
extern int ieee754dp_isnan(ieee754dp);
extern int ieee754dp_issnan(ieee754dp);
extern int ieee754si_xcpt(int, const char *, ...);
extern s64 ieee754di_xcpt(s64, const char *, ...);
extern ieee754dp ieee754dp_xcpt(ieee754dp, const char *, ...);
extern ieee754dp ieee754dp_nanxcpt(ieee754dp, const char *, ...);
extern int __cold ieee754si_xcpt(int, const char *, ...);
extern s64 __cold ieee754di_xcpt(s64, const char *, ...);
extern ieee754dp __cold ieee754dp_xcpt(ieee754dp, const char *, ...);
extern ieee754dp __cold ieee754dp_nanxcpt(ieee754dp, const char *, ...);
extern ieee754dp ieee754dp_bestnan(ieee754dp, ieee754dp);
extern ieee754dp ieee754dp_format(int, int, u64);

5
arch/mips/math-emu/ieee754sp.c
View File

@ -23,6 +23,7 @@
* ########################################################################
*/
#include <linux/compiler.h>
#include "ieee754sp.h"
@ -45,7 +46,7 @@ int ieee754sp_issnan(ieee754sp x)
}
ieee754sp ieee754sp_xcpt(ieee754sp r, const char *op, ...)
ieee754sp __cold ieee754sp_xcpt(ieee754sp r, const char *op, ...)
{
struct ieee754xctx ax;
@ -61,7 +62,7 @@ ieee754sp ieee754sp_xcpt(ieee754sp r, const char *op, ...)
return ax.rv.sp;
}
ieee754sp ieee754sp_nanxcpt(ieee754sp r, const char *op, ...)
ieee754sp __cold ieee754sp_nanxcpt(ieee754sp r, const char *op, ...)
{
struct ieee754xctx ax;

9
arch/mips/math-emu/ieee754sp.h
View File

@ -24,6 +24,7 @@
* ########################################################################
*/
#include <linux/compiler.h>
#include "ieee754int.h"
@ -68,10 +69,10 @@ static inline ieee754sp buildsp(int s, int bx, unsigned m)
extern int ieee754sp_isnan(ieee754sp);
extern int ieee754sp_issnan(ieee754sp);
extern int ieee754si_xcpt(int, const char *, ...);
extern s64 ieee754di_xcpt(s64, const char *, ...);
extern ieee754sp ieee754sp_xcpt(ieee754sp, const char *, ...);
extern ieee754sp ieee754sp_nanxcpt(ieee754sp, const char *, ...);
extern int __cold ieee754si_xcpt(int, const char *, ...);
extern s64 __cold ieee754di_xcpt(s64, const char *, ...);
extern ieee754sp __cold ieee754sp_xcpt(ieee754sp, const char *, ...);
extern ieee754sp __cold ieee754sp_nanxcpt(ieee754sp, const char *, ...);
extern ieee754sp ieee754sp_bestnan(ieee754sp, ieee754sp);
extern ieee754sp ieee754sp_format(int, int, unsigned);

3
arch/mips/math-emu/ieee754xcpt.c
View File

@ -28,6 +28,7 @@
* Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
*************************************************************************/
#include <linux/compiler.h>
#include <linux/kernel.h>
#include "ieee754.h"
@ -40,7 +41,7 @@ static const char *const rtnames[] = {
"sp", "dp", "xp", "si", "di"
};
void ieee754_xcpt(struct ieee754xctx *xcp)
void __cold ieee754_xcpt(struct ieee754xctx *xcp)
{
printk(KERN_DEBUG "floating point exception in \"%s\", type=%s\n",
xcp->op, rtnames[xcp->rt]);