[WebAssembly] Fix parseImmediate's memory alignment requirement
This fixes the current failure in the x86-64 ubsan bot caused by
r353496.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353499 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp b/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp
index 287b244..23cf60c 100644
--- a/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp
+++ b/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp
@@ -108,7 +108,7 @@
bool parseImmediate(MCInst &MI, uint64_t &Size, ArrayRef<uint8_t> Bytes) {
if (Size + sizeof(T) > Bytes.size())
return false;
- T Val = support::endian::read<T, support::endianness::little, alignof(T)>(
+ T Val = support::endian::read<T, support::endianness::little, 1>(
Bytes.data() + Size);
Size += sizeof(T);
if (std::is_floating_point<T>::value) {
