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| author | Jim Wilson <wilson@cygnus.com> | 1999-10-30 00:18:23 +0000 |
|---|---|---|
| committer | Jim Wilson <wilson@gcc.gnu.org> | 1999-10-29 17:18:23 -0700 |
| commit | 501eb93c44acdb9c998aeed9f8e0f517a67ce940 (patch) | |
| tree | e2a04191964ecf2b1c184baee12db28e24279123 /gcc/stor-layout.c | |
| parent | 3071fab5054b156e506212b86c62d614bd10e284 (diff) | |
| download | gcc-501eb93c44acdb9c998aeed9f8e0f517a67ce940.zip gcc-501eb93c44acdb9c998aeed9f8e0f517a67ce940.tar.gz gcc-501eb93c44acdb9c998aeed9f8e0f517a67ce940.tar.bz2 | |
Fix mn10200-elf libio build failure, and minor performance regression.
* stor-layout.c (layout_type): When compute TYPE_SIZE_UNIT from
TYPE_SIZE, convert type of result to sizetype.
From-SVN: r30270
Diffstat (limited to 'gcc/stor-layout.c')
| -rw-r--r-- | gcc/stor-layout.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/gcc/stor-layout.c b/gcc/stor-layout.c index f8a1e1d..3663293 100644 --- a/gcc/stor-layout.c +++ b/gcc/stor-layout.c @@ -1106,8 +1106,12 @@ layout_type (type) of the type above, find it by division. */ if (TYPE_SIZE_UNIT (type) == 0 && TYPE_SIZE (type) != 0) { - TYPE_SIZE_UNIT (type) = size_binop (FLOOR_DIV_EXPR, TYPE_SIZE (type), - size_int (BITS_PER_UNIT)); + /* TYPE_SIZE (type) is computed in bitsizetype. After the division, the + result will fit in sizetype. We will get more efficient code using + sizetype, so we force a conversion. */ + tree unit_size = size_binop (FLOOR_DIV_EXPR, TYPE_SIZE (type), + size_int (BITS_PER_UNIT)); + TYPE_SIZE_UNIT (type) = convert (sizetype, unit_size); } /* Once again evaluate only once, either now or as soon as safe. */ |