From 69d1c1aebf009e58157e233cd7f2338e654e8d05 Mon Sep 17 00:00:00 2001
From: Anton Korobeynikov <asl@math.spbu.ru>
Date: Wed, 2 Sep 2009 21:21:28 +0000
Subject: [PATCH] More missed vdup patterns

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80838 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/ARM/ARMInstrNEON.td | 12 ++++++++++++
 test/CodeGen/ARM/vdup_lane.ll  | 24 ++++++++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/lib/Target/ARM/ARMInstrNEON.td b/lib/Target/ARM/ARMInstrNEON.td
index 0c2f65523b4..c111668c5b7 100644
--- a/lib/Target/ARM/ARMInstrNEON.td
+++ b/lib/Target/ARM/ARMInstrNEON.td
@@ -355,6 +355,9 @@ def DSubReg_i32_reg : SDNodeXForm<imm, [{
 def DSubReg_f64_reg : SDNodeXForm<imm, [{
   return CurDAG->getTargetConstant(5 + N->getZExtValue(), MVT::i32);
 }]>;
+def DSubReg_f64_other_reg : SDNodeXForm<imm, [{
+  return CurDAG->getTargetConstant(5 + (1 - N->getZExtValue()), MVT::i32);
+}]>;
 
 // Extract S sub-registers of Q/D registers.
 // (arm_ssubreg_0 is 1; arm_ssubreg_1 is 2; etc.)
@@ -1907,6 +1910,15 @@ def VDUPfqf   : N2V<0b11, 0b11, 0b01, 0b00, 0b11000, 1, 0,
                     NoItinerary, "vdup.32\t$dst, ${src:lane}", "",
                     [(set QPR:$dst, (v4f32 (NEONvdup (f32 SPR:$src))))]>;
 
+def : Pat<(v2i64 (NEONvduplane (v2i64 QPR:$src), imm:$lane)),
+          (INSERT_SUBREG QPR:$src, 
+                         (i64 (EXTRACT_SUBREG QPR:$src, (DSubReg_f64_reg imm:$lane))),
+                         (DSubReg_f64_other_reg imm:$lane))>;
+def : Pat<(v2f64 (NEONvduplane (v2f64 QPR:$src), imm:$lane)),
+          (INSERT_SUBREG QPR:$src, 
+                         (f64 (EXTRACT_SUBREG QPR:$src, (DSubReg_f64_reg imm:$lane))),
+                         (DSubReg_f64_other_reg imm:$lane))>;
+
 //   VMOVN    : Vector Narrowing Move
 defm VMOVN    : N2VNInt_HSD<0b11,0b11,0b10,0b00100,0,0, "vmovn.i",
                             int_arm_neon_vmovn>;
diff --git a/test/CodeGen/ARM/vdup_lane.ll b/test/CodeGen/ARM/vdup_lane.ll
index adadc9f5d31..c14f864c48e 100644
--- a/test/CodeGen/ARM/vdup_lane.ll
+++ b/test/CodeGen/ARM/vdup_lane.ll
@@ -50,3 +50,27 @@ define <4 x float> @vduplaneQfloat(<2 x float>* %A) nounwind {
 	%tmp2 = shufflevector <2 x float> %tmp1, <2 x float> undef, <4 x i32> < i32 1, i32 1, i32 1, i32 1 >
 	ret <4 x float> %tmp2
 }
+
+define arm_apcscc <2 x i64> @foo(<2 x i64> %arg0_int64x1_t) nounwind readnone {
+entry:
+  %0 = shufflevector <2 x i64> %arg0_int64x1_t, <2 x i64> undef, <2 x i32> <i32 1, i32 1>
+  ret <2 x i64> %0
+}
+
+define arm_apcscc <2 x i64> @bar(<2 x i64> %arg0_int64x1_t) nounwind readnone {
+entry:
+  %0 = shufflevector <2 x i64> %arg0_int64x1_t, <2 x i64> undef, <2 x i32> <i32 0, i32 0>
+  ret <2 x i64> %0
+}
+
+define arm_apcscc <2 x double> @baz(<2 x double> %arg0_int64x1_t) nounwind readnone {
+entry:
+  %0 = shufflevector <2 x double> %arg0_int64x1_t, <2 x double> undef, <2 x i32> <i32 1, i32 1>
+  ret <2 x double> %0
+}
+
+define arm_apcscc <2 x double> @qux(<2 x double> %arg0_int64x1_t) nounwind readnone {
+entry:
+  %0 = shufflevector <2 x double> %arg0_int64x1_t, <2 x double> undef, <2 x i32> <i32 0, i32 0>
+  ret <2 x double> %0
+}
\ No newline at end of file
-- 
2.34.1