diff options
| -rw-r--r-- | src/parseTools.js | 3 | ||||
| -rwxr-xr-x | tests/runner.py | 24 |
2 files changed, 27 insertions, 0 deletions
diff --git a/src/parseTools.js b/src/parseTools.js index e37f3a99..80ba269b 100644 --- a/src/parseTools.js +++ b/src/parseTools.js @@ -1265,6 +1265,9 @@ function makePointer(slab, pos, allocator, type) { de = dedup(evaled); if (de.length === 1 && de[0] === 0) { slab = types.length; + if (USE_TYPED_ARRAYS == 2) { + types = ['i8']; // if data is zeros, we don't need type info + } } // TODO: if not all zeros, at least filter out items with type === 0. requires cleverness to know how to skip at runtime though. also // be careful of structure padding diff --git a/tests/runner.py b/tests/runner.py index a089d7b8..513a0434 100755 --- a/tests/runner.py +++ b/tests/runner.py @@ -2466,6 +2466,30 @@ c5,de,15,8a ''' self.do_run(src, '*70,97,15,3,3029,90*') + def test_bigarray(self): + if self.emcc_args is None: return self.skip('need ta2 to compress type data on zeroinitializers') + + # avoid "array initializer too large" errors + src = r''' + #include <stdio.h> + #include <assert.h> + + #define SIZE (1024*100) + struct Struct { + char x; + int y; + }; + Struct buffy[SIZE]; + + int main() { + for (int i = 0; i < SIZE; i++) { assert(buffy[i].x == 0 && buffy[i].y == 0); } // we were zeroinitialized + for (int i = 0; i < SIZE; i++) { buffy[i].x = i*i; buffy[i].y = i*i*i; } // we can save data + printf("*%d*\n", buffy[SIZE/3].x); + return 0; + } + ''' + self.do_run(src, '*57*') + def test_mod_globalstruct(self): src = ''' #include <stdio.h> |