R600/SI: Expand udiv v[24]i32 for SI and v2i32 for EG

Also add lit test for both cases on SI, and v2i32 for evergreen.

Note: I followed the guidance of the v4i32 EG check... UDIV produces really
complex code, so let's just check that the instruction was lowered
successfully.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@184843 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 4 insertions, 0 deletions

diff --git a/lib/Target/R600/R600ISelLowering.cpp b/lib/Target/R600/R600ISelLowering.cpp
index 812df83..cf349a8 100644
--- a/lib/Target/R600/R600ISelLowering.cpp
+++ b/lib/Target/R600/R600ISelLowering.cpp
@@ -56,6 +56,7 @@ R600TargetLowering::R600TargetLowering(TargetMachine &TM) :
   setOperationAction(ISD::SUB, MVT::v4i32, Expand);
   setOperationAction(ISD::SUB, MVT::v2i32, Expand);
   setOperationAction(ISD::UINT_TO_FP, MVT::v4i32, Expand);
+  setOperationAction(ISD::UDIV, MVT::v2i32, Expand);
   setOperationAction(ISD::UDIV, MVT::v4i32, Expand);
   setOperationAction(ISD::UREM, MVT::v4i32, Expand);
   setOperationAction(ISD::SETCC, MVT::v4i32, Expand);
diff --git a/lib/Target/R600/SIISelLowering.cpp b/lib/Target/R600/SIISelLowering.cpp
index 5f44d3a..1fb28fa 100644
--- a/lib/Target/R600/SIISelLowering.cpp
+++ b/lib/Target/R600/SIISelLowering.cpp
@@ -87,6 +87,9 @@ SITargetLowering::SITargetLowering(TargetMachine &TM) :
   setOperationAction(ISD::SUB, MVT::v2i32, Expand);
   setOperationAction(ISD::SUB, MVT::v4i32, Expand);
 
+  setOperationAction(ISD::UDIV, MVT::v2i32, Expand);
+  setOperationAction(ISD::UDIV, MVT::v4i32, Expand);
+
   setOperationAction(ISD::SELECT_CC, MVT::f32, Custom);
   setOperationAction(ISD::SELECT_CC, MVT::i32, Custom);