Add test for previous commit correcting NEON load patterns.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@161750 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/ARM/2012-08-09-neon-extload.ll b/test/CodeGen/ARM/2012-08-09-neon-extload.ll
new file mode 100644 (file)
index 0000000..b55f1ca
--- /dev/null
+++ b/test/CodeGen/ARM/2012-08-09-neon-extload.ll
@@ -0,0 +1,102 @@
+; RUN: llc -mtriple=armv7-none-linux-gnueabi < %s | FileCheck %s
+
+@var_v2i8 = global <2 x i8> zeroinitializer
+@var_v4i8 = global <4 x i8> zeroinitializer
+
+@var_v2i16 = global <2 x i16> zeroinitializer
+@var_v4i16 = global <4 x i16> zeroinitializer
+
+@var_v2i32 = global <2 x i32> zeroinitializer
+@var_v4i32 = global <4 x i32> zeroinitializer
+
+@var_v2i64 = global <2 x i64> zeroinitializer
+
+define void @test_v2i8tov2i32() {
+; CHECK: test_v2i8tov2i32:
+
+  %i8val = load <2 x i8>* @var_v2i8
+
+  %i32val = sext <2 x i8> %i8val to <2 x i32>
+  store <2 x i32> %i32val, <2 x i32>* @var_v2i32
+; CHECK: vld1.16 {d[[LOAD:[0-9]+]][0]}, [{{r[0-9]+}}, :16]
+; CHECK: vmovl.s8 {{q[0-9]+}}, d[[LOAD]]
+; CHECK: vmovl.s16 {{q[0-9]+}}, {{d[0-9]+}}
+
+  ret void
+}
+
+define void @test_v2i8tov2i64() {
+; CHECK: test_v2i8tov2i64:
+
+  %i8val = load <2 x i8>* @var_v2i8
+
+  %i64val = sext <2 x i8> %i8val to <2 x i64>
+  store <2 x i64> %i64val, <2 x i64>* @var_v2i64
+; CHECK: vld1.16 {d{{[0-9]+}}[0]}, [{{r[0-9]+}}, :16]
+; CHECK: vmovl.s8 {{q[0-9]+}}, d[[LOAD]]
+; CHECK: vmovl.s16 {{q[0-9]+}}, {{d[0-9]+}}
+; CHECK: vmovl.s32 {{q[0-9]+}}, {{d[0-9]+}}
+
+;  %i64val = sext <2 x i8> %i8val to <2 x i64>
+;  store <2 x i64> %i64val, <2 x i64>* @var_v2i64
+
+  ret void
+}
+
+define void @test_v4i8tov4i16() {
+; CHECK: test_v4i8tov4i16:
+
+  %i8val = load <4 x i8>* @var_v4i8
+
+  %i16val = sext <4 x i8> %i8val to <4 x i16>
+  store <4 x i16> %i16val, <4 x i16>* @var_v4i16
+; CHECK: vld1.32 {d[[LOAD:[0-9]+]][0]}, [{{r[0-9]+}}, :32]
+; CHECK: vmovl.s8 {{q[0-9]+}}, d[[LOAD]]
+; CHECK-NOT: vmovl.s16
+
+  ret void
+; CHECK: bx lr
+}
+
+define void @test_v4i8tov4i32() {
+; CHECK: test_v4i8tov4i32:
+
+  %i8val = load <4 x i8>* @var_v4i8
+
+  %i16val = sext <4 x i8> %i8val to <4 x i32>
+  store <4 x i32> %i16val, <4 x i32>* @var_v4i32
+; CHECK: vld1.32 {d[[LOAD:[0-9]+]][0]}, [{{r[0-9]+}}, :32]
+; CHECK: vmovl.s8 {{q[0-9]+}}, d[[LOAD]]
+; CHECK: vmovl.s16 {{q[0-9]+}}, {{d[0-9]+}}
+
+  ret void
+}
+
+define void @test_v2i16tov2i32() {
+; CHECK: test_v2i16tov2i32:
+
+  %i16val = load <2 x i16>* @var_v2i16
+
+  %i32val = sext <2 x i16> %i16val to <2 x i32>
+  store <2 x i32> %i32val, <2 x i32>* @var_v2i32
+; CHECK: vld1.32 {d[[LOAD:[0-9]+]][0]}, [{{r[0-9]+}}, :32]
+; CHECK: vmovl.s16 {{q[0-9]+}}, d[[LOAD]]
+; CHECK-NOT: vmovl
+
+  ret void
+; CHECK: bx lr
+}
+
+define void @test_v2i16tov2i64() {
+; CHECK: test_v2i16tov2i64:
+
+  %i16val = load <2 x i16>* @var_v2i16
+
+  %i64val = sext <2 x i16> %i16val to <2 x i64>
+  store <2 x i64> %i64val, <2 x i64>* @var_v2i64
+; CHECK: vld1.32 {d[[LOAD:[0-9]+]][0]}, [{{r[0-9]+}}, :32]
+; CHECK: vmovl.s16 {{q[0-9]+}}, d[[LOAD]]
+; CHECK: vmovl.s32 {{q[0-9]+}}, d[[LOAD]]
+
+  ret void
+}