diff options
Diffstat (limited to 'llvm/test/tools/llvm-opt-report/Inputs/sr2.c')
-rw-r--r-- | llvm/test/tools/llvm-opt-report/Inputs/sr2.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-opt-report/Inputs/sr2.c b/llvm/test/tools/llvm-opt-report/Inputs/sr2.c new file mode 100644 index 00000000000..79ee519e67f --- /dev/null +++ b/llvm/test/tools/llvm-opt-report/Inputs/sr2.c @@ -0,0 +1,35 @@ +/* +** Write a 64-bit variable-length integer to memory starting at p[0]. +** The length of data write will be between 1 and 9 bytes. The number +** of bytes written is returned. +** +** A variable-length integer consists of the lower 7 bits of each byte +** for all bytes that have the 8th bit set and one byte with the 8th +** bit clear. Except, if we get to the 9th byte, it stores the full +** 8 bits and is the last byte. +*/ +SQLITE_PRIVATE int sqlite3PutVarint(unsigned char *p, u64 v){ + int i, j, n; + u8 buf[10]; + if( v & (((u64)0xff000000)<<32) ){ + p[8] = v; + v >>= 8; + for(i=7; i>=0; i--){ + p[i] = (v & 0x7f) | 0x80; + v >>= 7; + } + return 9; + } + n = 0; + do{ + buf[n++] = (v & 0x7f) | 0x80; + v >>= 7; + }while( v!=0 ); + buf[0] &= 0x7f; + assert( n<=9 ); + for(i=0, j=n-1; j>=0; j--, i++){ + p[i] = buf[j]; + } + return n; +} + |