[PATCH] D37118: [ARM] Tidy-up ARMAsmParser. NFC.

[Javed Absar via Phabricator via llvm-commits]

javed.absar updated this revision to Diff 112715.

https://reviews.llvm.org/D37118

Files:
  lib/Target/ARM/AsmParser/ARMAsmParser.cpp


Index: lib/Target/ARM/AsmParser/ARMAsmParser.cpp
===================================================================
--- lib/Target/ARM/AsmParser/ARMAsmParser.cpp
+++ lib/Target/ARM/AsmParser/ARMAsmParser.cpp
@@ -264,6 +264,11 @@
     return;
   }
 
+  // Return the low-subreg of a given Q register.
+  unsigned getDRegFromQReg(unsigned QReg) {
+    return MRI->getSubReg(QReg, ARM::dsub_0);
+  }
+
   // Get the encoding of the IT mask, as it will appear in an IT instruction.
   unsigned getITMaskEncoding() {
     assert(inITBlock());
@@ -3462,29 +3467,6 @@
   }
 }
 
-// Return the low-subreg of a given Q register.
-static unsigned getDRegFromQReg(unsigned QReg) {
-  switch (QReg) {
-  default: llvm_unreachable("expected a Q register!");
-  case ARM::Q0:  return ARM::D0;
-  case ARM::Q1:  return ARM::D2;
-  case ARM::Q2:  return ARM::D4;
-  case ARM::Q3:  return ARM::D6;
-  case ARM::Q4:  return ARM::D8;
-  case ARM::Q5:  return ARM::D10;
-  case ARM::Q6:  return ARM::D12;
-  case ARM::Q7:  return ARM::D14;
-  case ARM::Q8:  return ARM::D16;
-  case ARM::Q9:  return ARM::D18;
-  case ARM::Q10: return ARM::D20;
-  case ARM::Q11: return ARM::D22;
-  case ARM::Q12: return ARM::D24;
-  case ARM::Q13: return ARM::D26;
-  case ARM::Q14: return ARM::D28;
-  case ARM::Q15: return ARM::D30;
-  }
-}
-
 /// Parse a register list.
 bool ARMAsmParser::parseRegisterList(OperandVector &Operands) {
   MCAsmParser &Parser = getParser();


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