diff options
| -rw-r--r-- | src/settings.js | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/src/settings.js b/src/settings.js index 1023ee11..df9da926 100644 --- a/src/settings.js +++ b/src/settings.js @@ -92,13 +92,9 @@ var PRECISE_I64_MATH = 1; // If enabled, i64 addition etc. is emulated - which i // that we can't know at compile time that 64-bit math is needed. For example, if you // print 64-bit values with printf, but never add them, we can't know at compile time // and you need to set this to 2. -var PRECISE_I32_MUL = 0; // If enabled, i64 math is done in i32 multiplication. This is necessary if the values - // exceed the JS double-integer limit of ~52 bits. This option can normally be disabled - // because generally i32 multiplication works ok without it, and enabling it has a big - // impact on performance. - // Note that you can hand-optimize your code to avoid the need for this: If you do - // multiplications that actually need 64-bit precision inside 64-bit values, things - // will work properly. (Unless the LLVM optimizer turns them into 32-bit values?) +var PRECISE_I32_MUL = 1; // If enabled, i32 multiplication is done with full precision, which means it is + // correct even if the value exceeds the JS double-integer limit of ~52 bits (otherwise, + // rounding will occur above that range). var CLOSURE_ANNOTATIONS = 0; // If set, the generated code will be annotated for the closure // compiler. This potentially lets closure optimize the code better. |