[WebAssembly] Set LoadExt and TruncStore actions for SIMD types
Summary: Fixes part of the problem reported in bug 39275.
Reviewers: aheejin, dschuff
Subscribers: sbc100, jgravelle-google, sunfish, llvm-commits, alexcrichton
Differential Revision: https://reviews.llvm.org/D53542
llvm-svn: 345230
diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
index 49fb840..0bd2ebd 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyISelLowering.cpp
@@ -174,11 +174,24 @@
// - Floating-point extending loads.
// - Floating-point truncating stores.
// - i1 extending loads.
+ // - extending/truncating SIMD loads/stores
setLoadExtAction(ISD::EXTLOAD, MVT::f64, MVT::f32, Expand);
setTruncStoreAction(MVT::f64, MVT::f32, Expand);
for (auto T : MVT::integer_valuetypes())
for (auto Ext : {ISD::EXTLOAD, ISD::ZEXTLOAD, ISD::SEXTLOAD})
setLoadExtAction(Ext, T, MVT::i1, Promote);
+ if (Subtarget->hasSIMD128()) {
+ for (auto T : {MVT::v16i8, MVT::v8i16, MVT::v4i32, MVT::v2i64, MVT::v4f32,
+ MVT::v2f64}) {
+ for (auto MemT : MVT::vector_valuetypes()) {
+ if (MVT(T) != MemT) {
+ setTruncStoreAction(T, MemT, Expand);
+ for (auto Ext : {ISD::EXTLOAD, ISD::ZEXTLOAD, ISD::SEXTLOAD})
+ setLoadExtAction(Ext, T, MemT, Expand);
+ }
+ }
+ }
+ }
// Trap lowers to wasm unreachable
setOperationAction(ISD::TRAP, MVT::Other, Legal);