Add XCore intrinsics for getid (returns thread id) and bitrev (reverses

bits in a word).

llvm-svn: 59296

6 files changed, 35 insertions, 5 deletions

diff --git a/llvm/include/llvm/Intrinsics.td b/llvm/include/llvm/Intrinsics.td
index d14961a08a0..c654c10eb8e 100644
--- a/llvm/include/llvm/Intrinsics.td
+++ b/llvm/include/llvm/Intrinsics.td
@@ -411,3 +411,4 @@ include "llvm/IntrinsicsX86.td"
 include "llvm/IntrinsicsARM.td"
 include "llvm/IntrinsicsCellSPU.td"
 include "llvm/IntrinsicsAlpha.td"
+include "llvm/IntrinsicsXCore.td"
diff --git a/llvm/include/llvm/IntrinsicsXCore.td b/llvm/include/llvm/IntrinsicsXCore.td
new file mode 100644
index 00000000000..a86cda28a5e
--- /dev/null
+++ b/llvm/include/llvm/IntrinsicsXCore.td
@@ -0,0 +1,14 @@
+//==- IntrinsicsXCore.td - XCore intrinsics                 -*- tablegen -*-==//
+// 
+// Copyright (C) 2008 XMOS
+//
+//===----------------------------------------------------------------------===//
+//
+// This file defines all of the XCore-specific intrinsics.
+//
+//===----------------------------------------------------------------------===//
+
+let TargetPrefix = "xcore" in {  // All intrinsics start with "llvm.xcore.".
+  def int_xcore_bitrev : Intrinsic<[llvm_i32_ty],[llvm_i32_ty],[IntrNoMem]>;
+  def int_xcore_getid : Intrinsic<[llvm_i32_ty],[],[IntrNoMem]>;
+}
diff --git a/llvm/lib/Target/XCore/XCoreISelLowering.cpp b/llvm/lib/Target/XCore/XCoreISelLowering.cpp
index 96b1ae7c5d3..765e6182b84 100644
--- a/llvm/lib/Target/XCore/XCoreISelLowering.cpp
+++ b/llvm/lib/Target/XCore/XCoreISelLowering.cpp
@@ -226,9 +226,8 @@ LowerGlobalAddress(SDValue Op, SelectionDAG &DAG)
 }
 
 static inline SDValue BuildGetId(SelectionDAG &DAG) {
-  // TODO
-  assert(0 && "Unimplemented");
-  return SDValue();
+  return DAG.getNode(ISD::INTRINSIC_WO_CHAIN, MVT::i32,
+                     DAG.getConstant(Intrinsic::xcore_getid, MVT::i32));
 }
 
 static inline bool isZeroLengthArray(const Type *Ty) {
diff --git a/llvm/lib/Target/XCore/XCoreInstrInfo.td b/llvm/lib/Target/XCore/XCoreInstrInfo.td
index 15e51f51b11..031ad875fa8 100644
--- a/llvm/lib/Target/XCore/XCoreInstrInfo.td
+++ b/llvm/lib/Target/XCore/XCoreInstrInfo.td
@@ -750,7 +750,7 @@ def MKMSK_2r : _FRUS<(outs GRRegs:$dst), (ins GRRegs:$size),
 // getd, testlcl, tinitlr, getps, setps
 def BITREV_l2r : _FL2R<(outs GRRegs:$dst), (ins GRRegs:$src),
                  "bitrev $dst, $src",
-                 []>;
+                 [(set GRRegs:$dst, (int_xcore_bitrev GRRegs:$src))]>;
 
 def BYTEREV_l2r : _FL2R<(outs GRRegs:$dst), (ins GRRegs:$src),
                  "byterev $dst, $src",
@@ -790,7 +790,7 @@ def BLA_1r : _F1R<(outs), (ins GRRegs:$addr, variable_ops),
 let Defs = [R11] in
 def GETID_0R : _F0R<(outs), (ins),
                  "get r11, id",
-                 []>;
+                 [(set R11, (int_xcore_getid))]>;
 
 //===----------------------------------------------------------------------===//
 // Non-Instruction Patterns
diff --git a/llvm/test/CodeGen/XCore/bitrev.ll b/llvm/test/CodeGen/XCore/bitrev.ll
new file mode 100644
index 00000000000..38f39486976
--- /dev/null
+++ b/llvm/test/CodeGen/XCore/bitrev.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llc -march=xcore > %t1.s
+; RUN: grep bitrev %t1.s | count 1 
+declare i32 @llvm.xcore.bitrev(i32)
+
+define i32 @test(i32 %val) {
+	%result = call i32 @llvm.xcore.bitrev(i32 %val)
+	ret i32 %result
+}
diff --git a/llvm/test/CodeGen/XCore/getid.ll b/llvm/test/CodeGen/XCore/getid.ll
new file mode 100644
index 00000000000..810e8ad6e75
--- /dev/null
+++ b/llvm/test/CodeGen/XCore/getid.ll
@@ -0,0 +1,8 @@
+; RUN: llvm-as < %s | llc -march=xcore > %t1.s
+; RUN: grep "get r11, id" %t1.s | count 1 
+declare i32 @llvm.xcore.getid()
+
+define i32 @test() {
+	%result = call i32 @llvm.xcore.getid()
+	ret i32 %result
+}