[llvm] r371770 - [X86] Move negateFMAOpcode helper earlier to help future patch. NFCI.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Thu Sep 12 13:39:56 2019
New Revision: 371770

URL: http://llvm.org/viewvc/llvm-project?rev=371770&view=rev
Log:
[X86] Move negateFMAOpcode helper earlier to help future patch. NFCI.

Modified:
    llvm/trunk/lib/Target/X86/X86ISelLowering.cpp

Modified: llvm/trunk/lib/Target/X86/X86ISelLowering.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86ISelLowering.cpp?rev=371770&r1=371769&r2=371770&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86ISelLowering.cpp (original)
+++ llvm/trunk/lib/Target/X86/X86ISelLowering.cpp Thu Sep 12 13:39:56 2019
@@ -41818,6 +41818,38 @@ static SDValue isFNEG(SelectionDAG &DAG,
   return SDValue();
 }
 
+static unsigned negateFMAOpcode(unsigned Opcode, bool NegMul, bool NegAcc) {
+  if (NegMul) {
+    switch (Opcode) {
+    default: llvm_unreachable("Unexpected opcode");
+    case ISD::FMA:             Opcode = X86ISD::FNMADD;       break;
+    case X86ISD::FMADD_RND:    Opcode = X86ISD::FNMADD_RND;   break;
+    case X86ISD::FMSUB:        Opcode = X86ISD::FNMSUB;       break;
+    case X86ISD::FMSUB_RND:    Opcode = X86ISD::FNMSUB_RND;   break;
+    case X86ISD::FNMADD:       Opcode = ISD::FMA;             break;
+    case X86ISD::FNMADD_RND:   Opcode = X86ISD::FMADD_RND;    break;
+    case X86ISD::FNMSUB:       Opcode = X86ISD::FMSUB;        break;
+    case X86ISD::FNMSUB_RND:   Opcode = X86ISD::FMSUB_RND;    break;
+    }
+  }
+
+  if (NegAcc) {
+    switch (Opcode) {
+    default: llvm_unreachable("Unexpected opcode");
+    case ISD::FMA:             Opcode = X86ISD::FMSUB;        break;
+    case X86ISD::FMADD_RND:    Opcode = X86ISD::FMSUB_RND;    break;
+    case X86ISD::FMSUB:        Opcode = ISD::FMA;             break;
+    case X86ISD::FMSUB_RND:    Opcode = X86ISD::FMADD_RND;    break;
+    case X86ISD::FNMADD:       Opcode = X86ISD::FNMSUB;       break;
+    case X86ISD::FNMADD_RND:   Opcode = X86ISD::FNMSUB_RND;   break;
+    case X86ISD::FNMSUB:       Opcode = X86ISD::FNMADD;       break;
+    case X86ISD::FNMSUB_RND:   Opcode = X86ISD::FNMADD_RND;   break;
+    }
+  }
+
+  return Opcode;
+}
+
 /// Do target-specific dag combines on floating point negations.
 static SDValue combineFneg(SDNode *N, SelectionDAG &DAG,
                            const X86Subtarget &Subtarget) {
@@ -42798,38 +42830,6 @@ static SDValue combineSext(SDNode *N, Se
   return SDValue();
 }
 
-static unsigned negateFMAOpcode(unsigned Opcode, bool NegMul, bool NegAcc) {
-  if (NegMul) {
-    switch (Opcode) {
-    default: llvm_unreachable("Unexpected opcode");
-    case ISD::FMA:             Opcode = X86ISD::FNMADD;       break;
-    case X86ISD::FMADD_RND:    Opcode = X86ISD::FNMADD_RND;   break;
-    case X86ISD::FMSUB:        Opcode = X86ISD::FNMSUB;       break;
-    case X86ISD::FMSUB_RND:    Opcode = X86ISD::FNMSUB_RND;   break;
-    case X86ISD::FNMADD:       Opcode = ISD::FMA;             break;
-    case X86ISD::FNMADD_RND:   Opcode = X86ISD::FMADD_RND;    break;
-    case X86ISD::FNMSUB:       Opcode = X86ISD::FMSUB;        break;
-    case X86ISD::FNMSUB_RND:   Opcode = X86ISD::FMSUB_RND;    break;
-    }
-  }
-
-  if (NegAcc) {
-    switch (Opcode) {
-    default: llvm_unreachable("Unexpected opcode");
-    case ISD::FMA:             Opcode = X86ISD::FMSUB;        break;
-    case X86ISD::FMADD_RND:    Opcode = X86ISD::FMSUB_RND;    break;
-    case X86ISD::FMSUB:        Opcode = ISD::FMA;             break;
-    case X86ISD::FMSUB_RND:    Opcode = X86ISD::FMADD_RND;    break;
-    case X86ISD::FNMADD:       Opcode = X86ISD::FNMSUB;       break;
-    case X86ISD::FNMADD_RND:   Opcode = X86ISD::FNMSUB_RND;   break;
-    case X86ISD::FNMSUB:       Opcode = X86ISD::FNMADD;       break;
-    case X86ISD::FNMSUB_RND:   Opcode = X86ISD::FNMADD_RND;   break;
-    }
-  }
-
-  return Opcode;
-}
-
 static SDValue combineFMA(SDNode *N, SelectionDAG &DAG,
                           const X86Subtarget &Subtarget) {
   SDLoc dl(N);