[WebAssembly] Make sign-extension opcodes a distinct feature.
Sign-extension opcodes have been split into a separate proposal from
the main threads proposal, so switch them to their own target
feature. See:
https://github.com/WebAssembly/sign-extension-ops
llvm-svn: 322966
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
index 299009fa..d0b3ad3 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
@@ -117,8 +117,7 @@
// As a special case, these operators use the type to mean the type to
// sign-extend from.
setOperationAction(ISD::SIGN_EXTEND_INREG, MVT::i1, Expand);
- if (!Subtarget->hasAtomics()) {
- // The Atomics feature includes signext intructions.
+ if (!Subtarget->hasSignExt()) {
for (auto T : {MVT::i8, MVT::i16, MVT::i32})
setOperationAction(ISD::SIGN_EXTEND_INREG, T, Expand);
}