[WebAssembly] Fix a compiler warning. NFC.
Fix a warning about a comparison between signed and unsigned integer
expressions.
llvm-svn: 288532
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp
index 25b203a..a6a2c0b 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyFrameLowering.cpp
@@ -194,7 +194,7 @@
if (HasBP) {
unsigned BitmaskReg = MRI.createVirtualRegister(PtrRC);
unsigned Alignment = MFI.getMaxAlignment();
- assert((1 << countTrailingZeros(Alignment)) == Alignment &&
+ assert((1u << countTrailingZeros(Alignment)) == Alignment &&
"Alignment must be a power of 2");
BuildMI(MBB, InsertPt, DL, TII->get(WebAssembly::CONST_I32), BitmaskReg)
.addImm((int)~(Alignment - 1));