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authorAlon Zakai <alonzakai@gmail.com>2016-08-28 18:15:33 -0700
committerAlon Zakai <alonzakai@gmail.com>2016-09-07 09:55:58 -0700
commitd58adf43956c65615c9cd8d6c2f4c2a3cceff8bb (patch)
treeec30ccb497799ff31d68ac76dc0b485f55fd24a9 /src/asm2wasm.h
parentfd0160dafa25699404c1603adfcf965c75115854 (diff)
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support HEAP8[x | 0| notation in asm2wasm
Diffstat (limited to 'src/asm2wasm.h')
-rw-r--r--src/asm2wasm.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/asm2wasm.h b/src/asm2wasm.h
index 0cb9b8dbe..059e51c59 100644
--- a/src/asm2wasm.h
+++ b/src/asm2wasm.h
@@ -1819,7 +1819,9 @@ Function* Asm2WasmBuilder::processFunction(Ref ast) {
// if there is a shift, we can just look through it, etc.
processUnshifted = [&](Ref ptr, unsigned bytes) {
auto shifts = bytesToShift(bytes);
- if (ptr[0] == BINARY && ptr[1] == RSHIFT && ptr[3][0] == NUM && ptr[3][1]->getInteger() == shifts) {
+ // HEAP?[addr >> ?], or HEAP8[x | 0]
+ if ((ptr[0] == BINARY && ptr[1] == RSHIFT && ptr[3][0] == NUM && ptr[3][1]->getInteger() == shifts) ||
+ (bytes == 1 && ptr[0] == BINARY && ptr[1] == OR && ptr[3][0] == NUM && ptr[3][1]->getInteger() == 0)) {
return process(ptr[2]); // look through it
} else if (ptr[0] == NUM) {
// constant, apply a shift (e.g. HEAP32[1] is address 4)