PTX: support for zext loads and trunc stores
- expansion of EXTLOAD and TRUNCSTORE instructions
Patch by Dan Bailey
llvm-svn: 130354
diff --git a/llvm/lib/Target/PTX/PTXISelLowering.cpp b/llvm/lib/Target/PTX/PTXISelLowering.cpp
index 7187518..c3ba249 100644
--- a/llvm/lib/Target/PTX/PTXISelLowering.cpp
+++ b/llvm/lib/Target/PTX/PTXISelLowering.cpp
@@ -34,11 +34,23 @@
addRegisterClass(MVT::f32, PTX::RRegf32RegisterClass);
addRegisterClass(MVT::f64, PTX::RRegf64RegisterClass);
+ setBooleanContents(ZeroOrOneBooleanContent);
+
setOperationAction(ISD::EXCEPTIONADDR, MVT::i32, Expand);
setOperationAction(ISD::ConstantFP, MVT::f32, Legal);
setOperationAction(ISD::ConstantFP, MVT::f64, Legal);
+
+ // Turn i16 (z)extload into load + (z)extend
+ setLoadExtAction(ISD::EXTLOAD, MVT::i16, Expand);
+ setLoadExtAction(ISD::ZEXTLOAD, MVT::i16, Expand);
+ // Turn f32 extload into load + fextend
+ setLoadExtAction(ISD::EXTLOAD, MVT::f32, Expand);
+
+ // Turn f64 truncstore into trunc + store.
+ setTruncStoreAction(MVT::f64, MVT::f32, Expand);
+
// Customize translation of memory addresses
setOperationAction(ISD::GlobalAddress, MVT::i32, Custom);
setOperationAction(ISD::GlobalAddress, MVT::i64, Custom);