diff options
Diffstat (limited to 'ext/pdo_sqlite/sqlite/mkopcodeh.awk')
| -rw-r--r-- | ext/pdo_sqlite/sqlite/mkopcodeh.awk | 38 |
1 files changed, 35 insertions, 3 deletions
diff --git a/ext/pdo_sqlite/sqlite/mkopcodeh.awk b/ext/pdo_sqlite/sqlite/mkopcodeh.awk index 641b987a81..a258194ca8 100644 --- a/ext/pdo_sqlite/sqlite/mkopcodeh.awk +++ b/ext/pdo_sqlite/sqlite/mkopcodeh.awk @@ -24,6 +24,7 @@ # the total library smaller. # + # Remember the TK_ values from the parse.h file /^#define TK_/ { tk[$2] = $3 @@ -35,11 +36,16 @@ gsub(/:/,"",name) gsub("\r","",name) op[name] = -1 - for(i=3; i<NF-2; i++){ + for(i=3; i<NF; i++){ if($i=="same" && $(i+1)=="as"){ - op[name] = tk[$(i+2)] + sym = $(i+2) + sub(/,/,"",sym) + op[name] = tk[sym] used[op[name]] = 1 - sameas[op[name]] = $(i+2) + sameas[op[name]] = sym + } + if($i=="no-push"){ + nopush[name] = 1 } } } @@ -75,4 +81,30 @@ END { printf "#define %-25s %15d\n", sprintf( "OP_NotUsed_%-3d", i ), i } } + + # Generate the 10 16-bit bitmasks used by function opcodeUsesStack() + # in vdbeaux.c. See comments in that function for details. + # + nopush[0] = 0 # 0..15 + nopush[1] = 0 # 16..31 + nopush[2] = 0 # 32..47 + nopush[3] = 0 # 48..63 + nopush[4] = 0 # 64..79 + nopush[5] = 0 # 80..95 + nopush[6] = 0 # 96..111 + nopush[7] = 0 # 112..127 + nopush[8] = 0 # 128..143 + nopush[9] = 0 # 144..159 + for(name in op){ + if( nopush[name] ){ + n = op[name] + j = n%16 + i = ((n - j)/16) + nopush[i] = nopush[i] + (2^j) + } + } + printf "\n" + for(i=0; i<10; i++){ + printf "#define NOPUSH_MASK_%d %d\n", i, nopush[i] + } } |