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| author | Richard Kenner <kenner@gcc.gnu.org> | 1996-01-16 08:56:11 -0500 |
|---|---|---|
| committer | Richard Kenner <kenner@gcc.gnu.org> | 1996-01-16 08:56:11 -0500 |
| commit | 15c577a80fc70c9e3db99925427d119a7b1da632 (patch) | |
| tree | c208cbcee523f3096838174f8f27b3e1a77e0177 /gcc/fold-const.c | |
| parent | 3298a1b11fc88045c41f4bcfa5d1e2205cceeb69 (diff) | |
| download | gcc-15c577a80fc70c9e3db99925427d119a7b1da632.zip gcc-15c577a80fc70c9e3db99925427d119a7b1da632.tar.gz gcc-15c577a80fc70c9e3db99925427d119a7b1da632.tar.bz2 | |
(left_shift_overflows): Remove; unused.
From-SVN: r11021
Diffstat (limited to 'gcc/fold-const.c')
| -rw-r--r-- | gcc/fold-const.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/gcc/fold-const.c b/gcc/fold-const.c index 1c51ba8..e4cf9e6 100644 --- a/gcc/fold-const.c +++ b/gcc/fold-const.c @@ -84,9 +84,6 @@ static tree strip_compound_expr PROTO((tree, tree)); #define BRANCH_COST 1 #endif -/* Yield nonzero if a signed left shift of A by B bits overflows. */ -#define left_shift_overflows(a, b) ((a) != ((a) << (b)) >> (b)) - /* Suppose A1 + B1 = SUM1, using 2's complement arithmetic ignoring overflow. Suppose A, B and SUM have the same respective signs as A1, B1, and SUM1. Then this yields nonzero if overflow occurred during the addition. |