Add preliminary v2i32 support for SPU backend. As there are no
such registers in SPU, this support boils down to "emulating"
them by duplicating instructions on the general purpose registers.
This adds the most basic operations on v2i32: passing parameters,
addition, subtraction, multiplication and a few others.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@110035 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/CellSPU/v2i32.ll b/test/CodeGen/CellSPU/v2i32.ll
new file mode 100644
index 0000000..be3822a
--- /dev/null
+++ b/test/CodeGen/CellSPU/v2i32.ll
@@ -0,0 +1,57 @@
+;RUN: llc --march=cellspu %s -o - | FileCheck %s
+%vec = type <2 x i32>
+
+define %vec @test_ret(%vec %param)
+{
+;CHECK: bi $lr
+ ret %vec %param
+}
+
+define %vec @test_add(%vec %param)
+{
+;CHECK: a $3, $3, $3
+ %1 = add %vec %param, %param
+;CHECK: bi $lr
+ ret %vec %1
+}
+
+define %vec @test_sub(%vec %param)
+{
+;CHECK: sf $3, $4, $3
+ %1 = sub %vec %param, <i32 1, i32 1>
+
+;CHECK: bi $lr
+ ret %vec %1
+}
+
+define %vec @test_mul(%vec %param)
+{
+;CHECK: mpyu
+;CHECK: mpyh
+;CHECK: a
+;CHECK: a $3
+ %1 = mul %vec %param, %param
+
+;CHECK: bi $lr
+ ret %vec %1
+}
+
+define <2 x i32> @test_splat(i32 %param ) {
+;TODO insertelement transforms to a PREFSLOT2VEC, that trasforms to the
+; somewhat redundant:
+;CHECK-NOT or $3, $3, $3
+;CHECK: lqa
+;CHECK: shufb
+ %sv = insertelement <1 x i32> undef, i32 %param, i32 0
+ %rv = shufflevector <1 x i32> %sv, <1 x i32> undef, <2 x i32> zeroinitializer
+;CHECK: bi $lr
+ ret <2 x i32> %rv
+}
+
+define i32 @test_extract() {
+;CHECK: shufb $3
+ %rv = extractelement <2 x i32> zeroinitializer, i32 undef ; <i32> [#uses=1]
+;CHECK: bi $lr
+ ret i32 %rv
+}
+