diff options
Diffstat (limited to 'gcc/emit-rtl.c')
| -rw-r--r-- | gcc/emit-rtl.c | 20 |
1 files changed, 7 insertions, 13 deletions
diff --git a/gcc/emit-rtl.c b/gcc/emit-rtl.c index d54bacab6b9..7f1e92b5f4d 100644 --- a/gcc/emit-rtl.c +++ b/gcc/emit-rtl.c @@ -4920,23 +4920,17 @@ init_emit_once (line_numbers) for (i = 0; i <= 2; i++) { + REAL_VALUE_TYPE *r = + (i == 0 ? &dconst0 : i == 1 ? &dconst1 : &dconst2); + for (mode = GET_CLASS_NARROWEST_MODE (MODE_FLOAT); mode != VOIDmode; mode = GET_MODE_WIDER_MODE (mode)) { rtx tem = rtx_alloc (CONST_DOUBLE); - union real_extract u; - - /* Zero any holes in a structure. */ - memset ((char *) &u, 0, sizeof u); - u.d = i == 0 ? dconst0 : i == 1 ? dconst1 : dconst2; - - /* Avoid trailing garbage in the rtx. */ - if (sizeof (u) < sizeof (HOST_WIDE_INT)) - CONST_DOUBLE_LOW (tem) = 0; - if (sizeof (u) < 2 * sizeof (HOST_WIDE_INT)) - CONST_DOUBLE_HIGH (tem) = 0; - - memcpy (&CONST_DOUBLE_LOW (tem), &u, sizeof u); + + /* Can't use CONST_DOUBLE_FROM_REAL_VALUE here; that uses the + tables we're setting up right now. */ + memcpy (&CONST_DOUBLE_LOW (tem), r, sizeof (REAL_VALUE_TYPE)); CONST_DOUBLE_CHAIN (tem) = NULL_RTX; PUT_MODE (tem, mode); |