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| author | Alex Converse <aconverse@google.com> | 2011-04-09 17:22:04 -0700 |
|---|---|---|
| committer | Alex Converse <alex.converse@gmail.com> | 2011-04-11 21:47:42 -0700 |
| commit | 187a537904ef2193a4b5e0312349f95223ff8610 (patch) | |
| tree | cf34aff4d5812a7b11731316e642d393fd9648b4 /libavcodec/ppc | |
| parent | db46be01ecf44608932cfa33e8914a4c38b93431 (diff) | |
| download | ffmpeg-187a537904ef2193a4b5e0312349f95223ff8610.tar.gz | |
Convert some undefined 1<<31 shifts into 1U<<31.
According to ISO 9899:1999 S 6.5.7/4:
The result of E1 << E2 is E1 left-shifted E2 bit positions; vacated bits
are filled with zeros. If E1 has an unsigned type, the value of the
result is E1× 2^E2, reduced modulo one more than the maximum value
representable in the result type. If E1 has a signed type and
nonnegative value, and E1× 2^E2 is representable in the result type, then
that is the resulting value; otherwise, the behavior is undefined.
Diffstat (limited to 'libavcodec/ppc')
| -rw-r--r-- | libavcodec/ppc/fft_altivec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ppc/fft_altivec.c b/libavcodec/ppc/fft_altivec.c index 68f3071f35..435024a0cb 100644 --- a/libavcodec/ppc/fft_altivec.c +++ b/libavcodec/ppc/fft_altivec.c @@ -122,7 +122,7 @@ static void ff_imdct_calc_altivec(FFTContext *s, FFTSample *output, const FFTSam int n = 1 << s->mdct_bits; int n4 = n >> 2; int n16 = n >> 4; - vec_u32 sign = {1<<31,1<<31,1<<31,1<<31}; + vec_u32 sign = {1U<<31,1U<<31,1U<<31,1U<<31}; vec_u32 *p0 = (vec_u32*)(output+n4); vec_u32 *p1 = (vec_u32*)(output+n4*3); |