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| author | rearnsha <rearnsha@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-11-13 13:35:26 +0000 |
|---|---|---|
| committer | rearnsha <rearnsha@138bc75d-0d04-0410-961f-82ee72b054a4> | 2000-11-13 13:35:26 +0000 |
| commit | f3751ef0be33148e3a5435722c822bed24db8062 (patch) | |
| tree | 43f40ee6c0644a2670e655822e337fdf50fb05d6 /gcc/varasm.c | |
| parent | 31bd149b296eeb1cc7ba1c5c1984dcc31f5ced30 (diff) | |
| download | gcc-f3751ef0be33148e3a5435722c822bed24db8062.tar.gz | |
* varasm.c (struct constant_descriptor): Put CONTENTS inside a
union to make it well-aligned. Update all uses.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@37422 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/varasm.c')
| -rw-r--r-- | gcc/varasm.c | 22 |
1 files changed, 15 insertions, 7 deletions
diff --git a/gcc/varasm.c b/gcc/varasm.c index c4229037ed1..a6e65fd2400 100644 --- a/gcc/varasm.c +++ b/gcc/varasm.c @@ -2327,7 +2327,16 @@ struct constant_descriptor struct constant_descriptor *next; char *label; rtx rtl; - unsigned char contents[1]; + /* Make sure the data is reasonably aligned. */ + union + { + unsigned char contents[1]; +#ifdef HAVE_LONG_DOUBLE + long double d; +#else + double d; +#endif + } u; }; #define HASHBITS 30 @@ -2477,7 +2486,7 @@ compare_constant (exp, desc) tree exp; struct constant_descriptor *desc; { - return 0 != compare_constant_1 (exp, desc->contents); + return 0 != compare_constant_1 (exp, desc->u.contents); } /* Compare constant expression EXP with a substring P of a constant descriptor. @@ -3475,7 +3484,7 @@ compare_constant_rtx (mode, x, desc) rtx x; struct constant_descriptor *desc; { - register int *p = (int *) desc->contents; + register int *p = (int *) desc->u.contents; register int *strp; register int len; struct rtx_const value; @@ -3503,10 +3512,9 @@ record_constant_rtx (mode, x) struct constant_descriptor *ptr; ptr = ((struct constant_descriptor *) - xcalloc (1, - (sizeof (struct constant_descriptor) - + sizeof (struct rtx_const) - 1))); - decode_rtx_const (mode, x, (struct rtx_const *) ptr->contents); + xcalloc (1, (offsetof (struct constant_descriptor, u) + + sizeof (struct rtx_const)))); + decode_rtx_const (mode, x, (struct rtx_const *) ptr->u.contents); return ptr; } |