Fix some aliasing problems.

6 files changed, 94 insertions, 52 deletions

diff --git a/lib/libc/alpha/gen/isinf.c b/lib/libc/alpha/gen/isinf.c
index 0017ea5..df6ac96 100644
--- a/lib/libc/alpha/gen/isinf.c
+++ b/lib/libc/alpha/gen/isinf.c
@@ -43,18 +43,26 @@ int
 isnan(d)
 	double d;
 {
-	struct ieee_double *p = (struct ieee_double *)&d;
+	union {
+		double v;
+		struct ieee_double s;
+	} u;
 
-	return (p->dbl_exp == DBL_EXP_INFNAN &&
-	    (p->dbl_frach || p->dbl_fracl));
+	u.v = d;
+	return (u.s.dbl_exp == DBL_EXP_INFNAN &&
+	    (u.s.dbl_frach || u.s.dbl_fracl));
 }
 
 int
 isinf(d)
 	double d;
 {
-	struct ieee_double *p = (struct ieee_double *)&d;
+	union {
+		double v;
+		struct ieee_double s;
+	} u;
 
-	return (p->dbl_exp == DBL_EXP_INFNAN &&
-	    !p->dbl_frach && !p->dbl_fracl);
+	u.v = d;
+	return (u.s.dbl_exp == DBL_EXP_INFNAN &&
+	    !u.s.dbl_frach && !u.s.dbl_fracl);
 }
diff --git a/lib/libc/amd64/gen/isinf.c b/lib/libc/amd64/gen/isinf.c
index d894b4f..a5e9dec 100644
--- a/lib/libc/amd64/gen/isinf.c
+++ b/lib/libc/amd64/gen/isinf.c
@@ -41,30 +41,35 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/types.h>
 
+struct IEEEdp {
+	u_int manl : 32;
+	u_int manh : 20;
+	u_int  exp : 11;
+	u_int sign :  1;
+};
+
 int
 isnan(d)
 	double d;
 {
-	register struct IEEEdp {
-		u_int manl : 32;
-		u_int manh : 20;
-		u_int  exp : 11;
-		u_int sign :  1;
-	} *p = (struct IEEEdp *)&d;
+	union {
+		double v;
+		struct IEEEdp s;
+	} u;
 
-	return(p->exp == 2047 && (p->manh || p->manl));
+	u.v = d;
+	return(u.s.exp == 2047 && (u.s.manh || u.s.manl));
 }
 
 int
 isinf(d)
 	double d;
 {
-	register struct IEEEdp {
-		u_int manl : 32;
-		u_int manh : 20;
-		u_int  exp : 11;
-		u_int sign :  1;
-	} *p = (struct IEEEdp *)&d;
+	union {
+		double v;
+		struct IEEEdp s;
+	} u;
 
-	return(p->exp == 2047 && !p->manh && !p->manl);
+	u.v = d;
+	return(u.s.exp == 2047 && !u.s.manh && !u.s.manl);
 }
diff --git a/lib/libc/i386/gen/isinf.c b/lib/libc/i386/gen/isinf.c
index d894b4f..0d9cd86 100644
--- a/lib/libc/i386/gen/isinf.c
+++ b/lib/libc/i386/gen/isinf.c
@@ -41,30 +41,35 @@ __FBSDID("$FreeBSD$");
 
 #include <sys/types.h>
 
+struct IEEEdp {
+	u_int manl : 32;
+	u_int manh : 20;
+	u_int  exp : 11;
+	u_int sign :  1;
+};
+
 int
 isnan(d)
 	double d;
 {
-	register struct IEEEdp {
-		u_int manl : 32;
-		u_int manh : 20;
-		u_int  exp : 11;
-		u_int sign :  1;
-	} *p = (struct IEEEdp *)&d;
+	union {
+		double v;
+		struct IEEEdp s;
+	} u;
 
-	return(p->exp == 2047 && (p->manh || p->manl));
+	u.v = d;
+	return (u.s.exp == 2047 && (u.s.manh || u.s.manl));
 }
 
 int
 isinf(d)
 	double d;
 {
-	register struct IEEEdp {
-		u_int manl : 32;
-		u_int manh : 20;
-		u_int  exp : 11;
-		u_int sign :  1;
-	} *p = (struct IEEEdp *)&d;
+	union {
+		double v;
+		struct IEEEdp s;
+	} u;
 
-	return(p->exp == 2047 && !p->manh && !p->manl);
+	u.v = d;
+	return (u.s.exp == 2047 && !u.s.manh && !u.s.manl);
 }
diff --git a/lib/libc/ia64/gen/isinf.c b/lib/libc/ia64/gen/isinf.c
index f47ef61..8f346f3 100644
--- a/lib/libc/ia64/gen/isinf.c
+++ b/lib/libc/ia64/gen/isinf.c
@@ -43,18 +43,26 @@ int
 isnan(d)
 	double d;
 {
-	struct ieee_double *p = (struct ieee_double *)&d;
+	union {
+		double v;
+		struct ieee_double s;
+	} u;
 
-	return (p->dbl_exp == DBL_EXP_INFNAN &&
-	    (p->dbl_frach || p->dbl_fracl));
+	u.v = d;
+	return (u.s.dbl_exp == DBL_EXP_INFNAN &&
+	    (u.s.dbl_frach || u.s.dbl_fracl));
 }
 
 int
 isinf(d)
 	double d;
 {
-	struct ieee_double *p = (struct ieee_double *)&d;
+	union {
+		double v;
+		struct ieee_double s;
+	} u;
 
-	return (p->dbl_exp == DBL_EXP_INFNAN &&
-	    !p->dbl_frach && !p->dbl_fracl);
+	u.v = d;
+	return (u.s.dbl_exp == DBL_EXP_INFNAN &&
+	    !u.s.dbl_frach && !u.s.dbl_fracl);
 }
diff --git a/lib/libc/powerpc/gen/isinf.c b/lib/libc/powerpc/gen/isinf.c
index fb6d73b..0b9ef6c 100644
--- a/lib/libc/powerpc/gen/isinf.c
+++ b/lib/libc/powerpc/gen/isinf.c
@@ -43,17 +43,25 @@ __FBSDID("$FreeBSD$");
 int
 isnan(double d)
 {
-	struct ieee_double *p = (struct ieee_double *)&d;
+	union {
+		double v;
+		struct ieee_double s;
+	} u;
 
-	return (p->dbl_exp == DBL_EXP_INFNAN &&
-	    (p->dbl_frach || p->dbl_fracl));
+	u.v = d;
+	return (u.s.dbl_exp == DBL_EXP_INFNAN &&
+	    (u.s.dbl_frach || u.s.dbl_fracl));
 }
 
 int
 isinf(double d)
 {
-	struct ieee_double *p = (struct ieee_double *)&d;
+	union {
+		double v;
+		struct ieee_double s;
+	} u;
 
-	return (p->dbl_exp == DBL_EXP_INFNAN &&
-	    !p->dbl_frach && !p->dbl_fracl);
+	u.v = d;
+	return (u.s.dbl_exp == DBL_EXP_INFNAN &&
+	    !u.s.dbl_frach && !u.s.dbl_fracl);
 }
diff --git a/lib/libc/sparc64/gen/isinf.c b/lib/libc/sparc64/gen/isinf.c
index c92650e..0cbdfff 100644
--- a/lib/libc/sparc64/gen/isinf.c
+++ b/lib/libc/sparc64/gen/isinf.c
@@ -44,18 +44,26 @@ int
 isnan(d)
 	double d;
 {
-	struct ieee_double *p = (struct ieee_double *)&d;
+	union {
+		double v;
+		struct ieee_double s;
+	} u;
 
-	return (p->dbl_exp == DBL_EXP_INFNAN &&
-	    (p->dbl_frach || p->dbl_fracl));
+	u.v = d;
+	return (u.s.dbl_exp == DBL_EXP_INFNAN &&
+	    (u.s.dbl_frach || u.s.dbl_fracl));
 }
 
 int
 isinf(d)
 	double d;
 {
-	struct ieee_double *p = (struct ieee_double *)&d;
+	union {
+		double v;
+		struct ieee_double s;
+	} u;
 
-	return (p->dbl_exp == DBL_EXP_INFNAN &&
-	    !p->dbl_frach && !p->dbl_fracl);
+	u.v = d;
+	return (u.s.dbl_exp == DBL_EXP_INFNAN &&
+	    !u.s.dbl_frach && !u.s.dbl_fracl);
 }