ps][microMIPS] Implement JRC instruction

Differential Revision: http://reviews.llvm.org/D5045

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219494 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Mips/MicroMipsInstrInfo.td b/lib/Target/Mips/MicroMipsInstrInfo.td
index 1ff67546be8572d55694c3ec6fe522d27833620e..86b4b0f279eb1bbfc7bab54863e5ad5a28256ed5 100644 (file)
--- a/lib/Target/Mips/MicroMipsInstrInfo.td
+++ b/lib/Target/Mips/MicroMipsInstrInfo.td
@@ -128,6 +128,16 @@ class JumpLinkRegSMM16<string opstr, RegisterOperand RO> :
   let Defs = [RA];
 }
 
+// 16-bit Jump Register Compact - No delay slot
+class JumpRegCMM16<string opstr, RegisterOperand RO> :
+  MicroMipsInst16<(outs), (ins RO:$rs), !strconcat(opstr, "\t$rs"),
+                  [], IIBranch, FrmR> {
+  let isTerminator = 1;
+  let isBarrier = 1;
+  let isBranch = 1;
+  let isIndirectBranch = 1;
+}
+
 // MicroMIPS Jump and Link (Call) - Short Delay Slot
 let isCall = 1, hasDelaySlot = 1, Defs = [RA] in {
   class JumpLinkMM<string opstr, DAGOperand opnd> :
@@ -151,6 +161,7 @@ def MFLO16_MM : MoveFromHILOMM<"mflo", GPR32Opnd, AC0>, MFHILO_FM_MM16<0x12>;
 def MOVE16_MM : MoveMM16<"move", GPR32Opnd>, MOVE_FM_MM16<0x03>;
 def JALR16_MM : JumpLinkRegMM16<"jalr", GPR32Opnd>, JALR_FM_MM16<0x0e>;
 def JALRS16_MM : JumpLinkRegSMM16<"jalrs16", GPR32Opnd>, JALR_FM_MM16<0x0f>;
+def JRC16_MM : JumpRegCMM16<"jrc", GPR32Opnd>, JALR_FM_MM16<0x0d>;
 def JRADDIUSP : JumpRAddiuStackMM16, JRADDIUSP_FM_MM16<0x18>;
 
 class WaitMM<string opstr> :

diff --git a/test/MC/Mips/micromips-16-bit-instructions.s b/test/MC/Mips/micromips-16-bit-instructions.s
index 98ec6d6c68d23d47cb3d3b73f7efe72d7bf3857b..63ae5d0575c784f406f300074eb5e8a06b635887 100644 (file)
--- a/test/MC/Mips/micromips-16-bit-instructions.s
+++ b/test/MC/Mips/micromips-16-bit-instructions.s
@@ -12,7 +12,8 @@
 # CHECK-EL: mfhi    $9              # encoding: [0x09,0x46]
 # CHECK-EL: mflo    $9              # encoding: [0x49,0x46]
 # CHECK-EL: move    $25, $1         # encoding: [0x21,0x0f]
-# CHECK-EL: jalr    $9              # encoding: [0xc9,0x45]
+# CHECK-EL: jrc     $9              # encoding: [0xa9,0x45]
+# CHECK-NEXT: jalr    $9            # encoding: [0xc9,0x45]
 # CHECK-EL: jraddiusp 20            # encoding: [0x05,0x47]
 # CHECK-EL: nop                     # encoding: [0x00,0x00,0x00,0x00]
 # CHECK-EL: jalrs16 $9              # encoding: [0xe9,0x45]
@@ -23,7 +24,8 @@
 # CHECK-EB: mfhi    $9              # encoding: [0x46,0x09]
 # CHECK-EB: mflo    $9              # encoding: [0x46,0x49]
 # CHECK-EB: move    $25, $1         # encoding: [0x0f,0x21]
-# CHECK-EB: jalr    $9              # encoding: [0x45,0xc9]
+# CHECK-EB: jrc     $9              # encoding: [0x45,0xa9]
+# CHECK-NEXT: jalr    $9            # encoding: [0x45,0xc9]
 # CHECK-EB: jraddiusp 20            # encoding: [0x47,0x05]
 # CHECK-EB: nop                     # encoding: [0x00,0x00,0x00,0x00]
 # CHECK-EB: jalrs16 $9              # encoding: [0x45,0xe9]
@@ -32,6 +34,7 @@
     mfhi    $9
     mflo    $9
     move    $25, $1
+    jrc     $9
     jalr    $9
     jraddiusp 20
     jalrs16 $9