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real.c (GET_REAL): Don't violate ANSI/ISO aliasing rules. 

* real.c (GET_REAL): Don't violate ANSI/ISO aliasing rules.
        (PUT_REAL): Likewise.

From-SVN: r28521
This commit is contained in:
Mark Mitchell 1999-08-05 05:41:34 +00:00 committed by Jeff Law
parent 67a6001825
commit d7afe8ec44
2 changed files with 31 additions and 26 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
Wed Aug 4 23:39:20 1999 Mark Mitchell <mark@codesourcery.com>
* real.c (GET_REAL): Don't violate ANSI/ISO aliasing rules.
(PUT_REAL): Likewise.
Wed Aug 4 20:45:04 1999 J"orn Rennecke <amylaar@cygnus.co.uk>
* final.c (shorten_branches): Don't add an alignment for loops

52
gcc/real.c
View File

@ -274,34 +274,34 @@ do { \
/* Emulator uses target format internally
but host stores it in host endian-ness. */
#define GET_REAL(r,e) \
do { \
if (HOST_FLOAT_WORDS_BIG_ENDIAN == REAL_WORDS_BIG_ENDIAN) \
e53toe ((unsigned EMUSHORT *) (r), (e)); \
else \
{ \
unsigned EMUSHORT w[4]; \
w[3] = ((EMUSHORT *) r)[0]; \
w[2] = ((EMUSHORT *) r)[1]; \
w[1] = ((EMUSHORT *) r)[2]; \
w[0] = ((EMUSHORT *) r)[3]; \
e53toe (w, (e)); \
} \
#define GET_REAL(r,e) \
do { \
if (HOST_FLOAT_WORDS_BIG_ENDIAN == REAL_WORDS_BIG_ENDIAN) \
e53toe ((unsigned EMUSHORT *) (r), (e)); \
else \
{ \
unsigned EMUSHORT w[4]; \
bcopy (((EMUSHORT *) r), &w[3], sizeof (EMUSHORT)); \
bcopy (((EMUSHORT *) r) + 1, &w[2], sizeof (EMUSHORT)); \
bcopy (((EMUSHORT *) r) + 2, &w[1], sizeof (EMUSHORT)); \
bcopy (((EMUSHORT *) r) + 3, &w[0], sizeof (EMUSHORT)); \
e53toe (w, (e)); \
} \
} while (0)
#define PUT_REAL(e,r) \
do { \
if (HOST_FLOAT_WORDS_BIG_ENDIAN == REAL_WORDS_BIG_ENDIAN) \
etoe53 ((e), (unsigned EMUSHORT *) (r)); \
else \
{ \
unsigned EMUSHORT w[4]; \
etoe53 ((e), w); \
*((EMUSHORT *) r) = w[3]; \
*((EMUSHORT *) r + 1) = w[2]; \
*((EMUSHORT *) r + 2) = w[1]; \
*((EMUSHORT *) r + 3) = w[0]; \
} \
#define PUT_REAL(e,r) \
do { \
if (HOST_FLOAT_WORDS_BIG_ENDIAN == REAL_WORDS_BIG_ENDIAN) \
etoe53 ((e), (unsigned EMUSHORT *) (r)); \
else \
{ \
unsigned EMUSHORT w[4]; \
etoe53 ((e), w); \
bcopy (&w[3], ((EMUSHORT *) r), sizeof (EMUSHORT)); \
bcopy (&w[2], ((EMUSHORT *) r) + 1, sizeof (EMUSHORT)); \
bcopy (&w[1], ((EMUSHORT *) r) + 2, sizeof (EMUSHORT)); \
bcopy (&w[0], ((EMUSHORT *) r) + 3, sizeof (EMUSHORT)); \
} \
} while (0)
#else /* not REAL_ARITHMETIC */