diff options
Diffstat (limited to 'src/parseTools.js')
| -rw-r--r-- | src/parseTools.js | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/src/parseTools.js b/src/parseTools.js index 5813c908..fab3eccd 100644 --- a/src/parseTools.js +++ b/src/parseTools.js @@ -665,8 +665,7 @@ function getHeapOffset(offset, type) { return offset; } else { if (getNativeFieldSize(type) > 4) { - dprint(type + ' has size > 4, which means we cannot be guaranteed to load it aligned! For now, USE_TYPED_ARRAYS==2 cannot handle that.'); - return 'abort("size > 4, alignment issues with USE_TYPED_ARRAYS==2")'; + type = 'i32'; // XXX we emulate 64-bit values as 32 } return '((' + offset + ')>>' + (Math.log(getNativeFieldSize(type, true))/Math.LN2) + ')'; } @@ -876,13 +875,21 @@ function makeGetSlabs(ptr, type, allowMultiple) { } } else { // USE_TYPED_ARRAYS == 2) if (isPointerType(type)) type = 'i32'; // Hardcoded 32-bit + function warn64() { + if (!Debugging.shownUTA2_64Warning) { + dprint('WARNING: .ll contains i64 or double values. These 64-bit values are dangerous in USE_TYPED_ARRAYS == 2.'); + dprint(' We store i64 as i32, and double as float. This can cause serious problems!'); + Debugging.shownUTA2_64Warning = true; + } + } switch(type) { + case 'i1': return ['HEAP8']; break; case 'i8': return ['HEAP8']; break; case 'i16': return ['HEAP16']; break; case 'i32': return ['HEAP32']; break; - case 'i64': return ['abort("No HEAP64")']; break; case 'float': return ['HEAPF32']; break; - case 'double': return ['HEAPF64']; break; + case 'i64': warn64(); return ['HEAP32']; break; + case 'double': warn64(); return ['HEAPF32']; break; default: { throw 'what, exactly, can we do for unknown types in TA2?! ' + new Error().stack; } |