Fix 32-bit compile (without -msse2).

diff --git a/turbopfor.h b/turbopfor.h
index 45745a4de925746813fc5ad2da9a95e05fe9be5d..e4c31e6fd1c898ce94dc26378c68ee2bf6f1472f 100644 (file)
--- a/turbopfor.h
+++ b/turbopfor.h
@@ -172,8 +172,11 @@ private:
 #ifdef COULD_HAVE_SSE2
 struct InterleavedBitReaderSSE2 {
 public:
+       __attribute__((target("sse2")))
        InterleavedBitReaderSSE2(const unsigned char *in, unsigned bits)
                : in(reinterpret_cast<const __m128i *>(in)), bits(bits), mask(_mm_set1_epi32(mask_for_bits(bits))) {}
+
+       __attribute__((target("sse2")))
        __m128i read() {
                __m128i val = _mm_srli_epi32(_mm_loadu_si128(in), bits_used);
                if (bits_used + bits > 32) {
@@ -247,7 +250,10 @@ const unsigned char *decode_for(const unsigned char *in, unsigned num, Docid *ou
 #ifdef COULD_HAVE_SSE2
 class DeltaDecoderSSE2 {
 public:
+       __attribute__((target("sse2")))
        DeltaDecoderSSE2(uint32_t prev_val) : prev_val(_mm_set1_epi32(prev_val)) {}
+
+       __attribute__((target("sse2")))
        __m128i decode(__m128i val) {
                val = _mm_add_epi32(val, _mm_slli_si128(val, 4));
                val = _mm_add_epi32(val, _mm_slli_si128(val, 8));