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| author | Torbjorn Granlund <tege@gnu.org> | 1994-02-12 12:40:58 +0000 |
|---|---|---|
| committer | Torbjorn Granlund <tege@gnu.org> | 1994-02-12 12:40:58 +0000 |
| commit | 2ab0a5c41c7ae40cf1ae3bc172c1daebbec43643 (patch) | |
| tree | 27e678ef7f6a8b3e78a69ee279d00675e1b113f0 /gcc/expmed.c | |
| parent | 5b6e175e295c34e21b6498e2d0310cfa15fb6797 (diff) | |
| download | gcc-2ab0a5c41c7ae40cf1ae3bc172c1daebbec43643.zip gcc-2ab0a5c41c7ae40cf1ae3bc172c1daebbec43643.tar.gz gcc-2ab0a5c41c7ae40cf1ae3bc172c1daebbec43643.tar.bz2 | |
(expand_shift): Truncate immediate count if SHIFT_COUNT_TRUNCATED.
From-SVN: r6538
Diffstat (limited to 'gcc/expmed.c')
| -rw-r--r-- | gcc/expmed.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/expmed.c b/gcc/expmed.c index ccf130e..a4eea00 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -1602,6 +1602,14 @@ expand_shift (code, mode, shifted, amount, target, unsignedp) op1 = expand_expr (amount, NULL_RTX, VOIDmode, 0); +#if SHIFT_COUNT_TRUNCATED + if (SHIFT_COUNT_TRUNCATED + && GET_CODE (op1) == CONST_INT + && (unsigned HOST_WIDE_INT) INTVAL (op1) >= GET_MODE_BITSIZE (mode)) + op1 = GEN_INT ((unsigned HOST_WIDE_INT) INTVAL (op1) + % GET_MODE_BITSIZE (mode)); +#endif + if (op1 == const0_rtx) return shifted; |