[Mesa-dev] [PATCH] R600: Expand SUB for v2i32/v4i32

[Aaron Watry]

Signed-off-by: Aaron Watry <awatry at gmail.com>
---
 lib/Target/R600/R600ISelLowering.cpp |    2 ++
 test/CodeGen/R600/sub.ll             |   15 +++++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 test/CodeGen/R600/sub.ll

diff --git a/lib/Target/R600/R600ISelLowering.cpp b/lib/Target/R600/R600ISelLowering.cpp
index b982279..7252235 100644
--- a/lib/Target/R600/R600ISelLowering.cpp
+++ b/lib/Target/R600/R600ISelLowering.cpp
@@ -54,6 +54,8 @@ R600TargetLowering::R600TargetLowering(TargetMachine &TM) :
   setOperationAction(ISD::SRL, MVT::v2i32, Expand);
   setOperationAction(ISD::SRA, MVT::v4i32, Expand);
   setOperationAction(ISD::SRA, MVT::v2i32, Expand);
+  setOperationAction(ISD::SUB, MVT::v4i32, Expand);
+  setOperationAction(ISD::SUB, MVT::v2i32, Expand);
   setOperationAction(ISD::UINT_TO_FP, MVT::v4i32, Expand);
   setOperationAction(ISD::UDIV, MVT::v4i32, Expand);
   setOperationAction(ISD::UREM, MVT::v4i32, Expand);
diff --git a/test/CodeGen/R600/sub.ll b/test/CodeGen/R600/sub.ll
new file mode 100644
index 0000000..12bfba3
--- /dev/null
+++ b/test/CodeGen/R600/sub.ll
@@ -0,0 +1,15 @@
+;RUN: llc < %s -march=r600 -mcpu=redwood | FileCheck %s
+
+;CHECK: SUB_INT T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
+;CHECK: SUB_INT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
+;CHECK: SUB_INT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
+;CHECK: SUB_INT * T{{[0-9]+\.[XYZW], T[0-9]+\.[XYZW], T[0-9]+\.[XYZW]}}
+
+define void @test(<4 x i32> addrspace(1)* %out, <4 x i32> addrspace(1)* %in) {
+  %b_ptr = getelementptr <4 x i32> addrspace(1)* %in, i32 1
+  %a = load <4 x i32> addrspace(1) * %in
+  %b = load <4 x i32> addrspace(1) * %b_ptr
+  %result = sub <4 x i32> %a, %b
+  store <4 x i32> %result, <4 x i32> addrspace(1)* %out
+  ret void
+}
-- 
1.7.10.4