From 5908ab4dd6595a7bcbe3d4952a3ca5630b262088 Mon Sep 17 00:00:00 2001
From: Chad Rosier <mcrosier@codeaurora.org>
Date: Mon, 4 Aug 2014 21:20:25 +0000
Subject: [PATCH] [AArch64] Extend the number of scalar instructions supported
 in the AdvSIMD scalar integer instruction pass.

This is a patch I had lying around from a few months ago.  The pass is
currently disabled by default, so nothing to interesting.

llvm-svn: 214779
---
 .../Target/AArch64/AArch64AdvSIMDScalarPass.cpp    |  6 ++++
 llvm/test/CodeGen/AArch64/arm64-AdvSIMD-Scalar.ll  | 41 ++++++++++++++++++++++
 2 files changed, 47 insertions(+)

diff --git a/llvm/lib/Target/AArch64/AArch64AdvSIMDScalarPass.cpp b/llvm/lib/Target/AArch64/AArch64AdvSIMDScalarPass.cpp
index 780e075..4f782b6 100644
--- a/llvm/lib/Target/AArch64/AArch64AdvSIMDScalarPass.cpp
+++ b/llvm/lib/Target/AArch64/AArch64AdvSIMDScalarPass.cpp
@@ -166,6 +166,12 @@ static int getTransformOpcode(unsigned Opc) {
     return AArch64::ADDv1i64;
   case AArch64::SUBXrr:
     return AArch64::SUBv1i64;
+  case AArch64::ANDXrr:
+    return AArch64::ANDv8i8;
+  case AArch64::EORXrr:
+    return AArch64::EORv8i8;
+  case AArch64::ORRXrr:
+    return AArch64::ORRv8i8;
   }
   // No AdvSIMD equivalent, so just return the original opcode.
   return Opc;
diff --git a/llvm/test/CodeGen/AArch64/arm64-AdvSIMD-Scalar.ll b/llvm/test/CodeGen/AArch64/arm64-AdvSIMD-Scalar.ll
index c4597d5..a3d7727 100644
--- a/llvm/test/CodeGen/AArch64/arm64-AdvSIMD-Scalar.ll
+++ b/llvm/test/CodeGen/AArch64/arm64-AdvSIMD-Scalar.ll
@@ -65,3 +65,44 @@ define double @add_sub_su64(<2 x i64> %a, <2 x i64> %b) nounwind readnone {
   %retval = bitcast i64 %sub.i to double
   ret double %retval
 }
+define double @and_su64(<2 x i64> %a, <2 x i64> %b) nounwind readnone {
+; CHECK-LABEL: and_su64:
+; CHECK: and.8b v0, v1, v0
+; CHECK-NEXT: ret
+; GENERIC-LABEL: and_su64:
+; GENERIC: and v0.8b, v1.8b, v0.8b
+; GENERIC-NEXT: ret
+  %vecext = extractelement <2 x i64> %a, i32 0
+  %vecext1 = extractelement <2 x i64> %b, i32 0
+  %or.i = and i64 %vecext1, %vecext
+  %retval = bitcast i64 %or.i to double
+  ret double %retval
+}
+
+define double @orr_su64(<2 x i64> %a, <2 x i64> %b) nounwind readnone {
+; CHECK-LABEL: orr_su64:
+; CHECK: orr.8b v0, v1, v0
+; CHECK-NEXT: ret
+; GENERIC-LABEL: orr_su64:
+; GENERIC: orr v0.8b, v1.8b, v0.8b
+; GENERIC-NEXT: ret
+  %vecext = extractelement <2 x i64> %a, i32 0
+  %vecext1 = extractelement <2 x i64> %b, i32 0
+  %or.i = or i64 %vecext1, %vecext
+  %retval = bitcast i64 %or.i to double
+  ret double %retval
+}
+
+define double @xorr_su64(<2 x i64> %a, <2 x i64> %b) nounwind readnone {
+; CHECK-LABEL: xorr_su64:
+; CHECK: eor.8b v0, v1, v0
+; CHECK-NEXT: ret
+; GENERIC-LABEL: xorr_su64:
+; GENERIC: eor v0.8b, v1.8b, v0.8b
+; GENERIC-NEXT: ret
+  %vecext = extractelement <2 x i64> %a, i32 0
+  %vecext1 = extractelement <2 x i64> %b, i32 0
+  %xor.i = xor i64 %vecext1, %vecext
+  %retval = bitcast i64 %xor.i to double
+  ret double %retval
+}
-- 
2.7.4