Add support for ARM's Advanced SIMD (NEON) instruction set.

This is still a work in progress but most of the NEON instruction set
is supported.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@73919 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 85 insertions, 0 deletions

diff --git a/test/CodeGen/ARM/vicmp.ll b/test/CodeGen/ARM/vicmp.ll
new file mode 100644
index 0000000000..86858f9293
--- /dev/null
+++ b/test/CodeGen/ARM/vicmp.ll
@@ -0,0 +1,85 @@
+; RUN: llvm-as < %s | llc -march=arm -mattr=+neon > %t
+; RUN: grep {vceq\\.i8} %t | count 2
+; RUN: grep {vceq\\.i16} %t | count 2
+; RUN: grep {vceq\\.i32} %t | count 2
+; RUN: grep vmvn %t | count 6
+; RUN: grep {vcgt\\.s8} %t | count 1
+; RUN: grep {vcge\\.s16} %t | count 1
+; RUN: grep {vcgt\\.u16} %t | count 1
+; RUN: grep {vcge\\.u32} %t | count 1
+
+; This tests vicmp operations that do not map directly to NEON instructions.
+; Not-equal (ne) operations are implemented by VCEQ/VMVN.  Less-than (lt/ult)
+; and less-than-or-equal (le/ule) are implemented by swapping the arguments
+; to VCGT and VCGE.  Test all the operand types for not-equal but only sample
+; the other operations.
+
+define <8 x i8> @vcnei8(<8 x i8>* %A, <8 x i8>* %B) nounwind {
+	%tmp1 = load <8 x i8>* %A
+	%tmp2 = load <8 x i8>* %B
+	%tmp3 = vicmp ne <8 x i8> %tmp1, %tmp2
+	ret <8 x i8> %tmp3
+}
+
+define <4 x i16> @vcnei16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
+	%tmp1 = load <4 x i16>* %A
+	%tmp2 = load <4 x i16>* %B
+	%tmp3 = vicmp ne <4 x i16> %tmp1, %tmp2
+	ret <4 x i16> %tmp3
+}
+
+define <2 x i32> @vcnei32(<2 x i32>* %A, <2 x i32>* %B) nounwind {
+	%tmp1 = load <2 x i32>* %A
+	%tmp2 = load <2 x i32>* %B
+	%tmp3 = vicmp ne <2 x i32> %tmp1, %tmp2
+	ret <2 x i32> %tmp3
+}
+
+define <16 x i8> @vcneQi8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
+	%tmp1 = load <16 x i8>* %A
+	%tmp2 = load <16 x i8>* %B
+	%tmp3 = vicmp ne <16 x i8> %tmp1, %tmp2
+	ret <16 x i8> %tmp3
+}
+
+define <8 x i16> @vcneQi16(<8 x i16>* %A, <8 x i16>* %B) nounwind {
+	%tmp1 = load <8 x i16>* %A
+	%tmp2 = load <8 x i16>* %B
+	%tmp3 = vicmp ne <8 x i16> %tmp1, %tmp2
+	ret <8 x i16> %tmp3
+}
+
+define <4 x i32> @vcneQi32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
+	%tmp1 = load <4 x i32>* %A
+	%tmp2 = load <4 x i32>* %B
+	%tmp3 = vicmp ne <4 x i32> %tmp1, %tmp2
+	ret <4 x i32> %tmp3
+}
+
+define <16 x i8> @vcltQs8(<16 x i8>* %A, <16 x i8>* %B) nounwind {
+	%tmp1 = load <16 x i8>* %A
+	%tmp2 = load <16 x i8>* %B
+	%tmp3 = vicmp slt <16 x i8> %tmp1, %tmp2
+	ret <16 x i8> %tmp3
+}
+
+define <4 x i16> @vcles16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
+	%tmp1 = load <4 x i16>* %A
+	%tmp2 = load <4 x i16>* %B
+	%tmp3 = vicmp sle <4 x i16> %tmp1, %tmp2
+	ret <4 x i16> %tmp3
+}
+
+define <4 x i16> @vcltu16(<4 x i16>* %A, <4 x i16>* %B) nounwind {
+	%tmp1 = load <4 x i16>* %A
+	%tmp2 = load <4 x i16>* %B
+	%tmp3 = vicmp ult <4 x i16> %tmp1, %tmp2
+	ret <4 x i16> %tmp3
+}
+
+define <4 x i32> @vcleQu32(<4 x i32>* %A, <4 x i32>* %B) nounwind {
+	%tmp1 = load <4 x i32>* %A
+	%tmp2 = load <4 x i32>* %B
+	%tmp3 = vicmp ule <4 x i32> %tmp1, %tmp2
+	ret <4 x i32> %tmp3
+}