[SVE] Refactor sve-bitcast.ll to include all combinations for legal t…

…ypes. Patch enables custom lowering for MVT::nxv4bf16 because otherwise the refactored test file triggers a selection failure. The reason for the refactoring it to highlight cases where the generated code is wrong.
llvm · Jun 3, 2022 · 2dde272 · 2dde272
1 parent fe65c56
commit 2dde272
Show file tree

Hide file tree

Showing 2 changed files with 681 additions and 167 deletions.
diff --git a/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp b/llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
@@ -1136,7 +1136,7 @@ AArch64TargetLowering::AArch64TargetLowering(const TargetMachine &TM,
 
     // Legalize unpacked bitcasts to REINTERPRET_CAST.
     for (auto VT : {MVT::nxv2i16, MVT::nxv4i16, MVT::nxv2i32, MVT::nxv2bf16,
-                    MVT::nxv2f16, MVT::nxv4f16, MVT::nxv2f32})
+                    MVT::nxv4bf16, MVT::nxv2f16, MVT::nxv4f16, MVT::nxv2f32})
       setOperationAction(ISD::BITCAST, VT, Custom);
 
     for (auto VT :