[llvm-commits] [llvm-gcc-4.2] r112772 - /llvm-gcc-4.2/trunk/gcc/config/arm/llvm-arm.cpp

[Bob Wilson]

Author: bwilson
Date: Wed Sep  1 18:46:58 2010
New Revision: 112772

URL: http://llvm.org/viewvc/llvm-project?rev=112772&view=rev
Log:
Translate NEON vmull, vmlal, and vmlsl builtins to llvm multiply-add/sub with
zext/sext operations, instead of to llvm intrinsics.

Modified:
    llvm-gcc-4.2/trunk/gcc/config/arm/llvm-arm.cpp

Modified: llvm-gcc-4.2/trunk/gcc/config/arm/llvm-arm.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm-gcc-4.2/trunk/gcc/config/arm/llvm-arm.cpp?rev=112772&r1=112771&r2=112772&view=diff
==============================================================================
--- llvm-gcc-4.2/trunk/gcc/config/arm/llvm-arm.cpp (original)
+++ llvm-gcc-4.2/trunk/gcc/config/arm/llvm-arm.cpp Wed Sep  1 18:46:58 2010
@@ -929,15 +929,17 @@
         return UnexpectedError("%Hinvalid lane number", exp, Result);
       Ops[2] = BuildDupLane(Ops[2], LaneVal, NUnits, Builder);
     }
-    if (datatype == neon_datatype_signed)
-      intID = Intrinsic::arm_neon_vmlals;
-    else if (datatype == neon_datatype_unsigned)
-      intID = Intrinsic::arm_neon_vmlalu;
-    else
+    if (datatype == neon_datatype_signed) {
+      Ops[1] = Builder.CreateSExt(Ops[1], ResultType);
+      Ops[2] = Builder.CreateSExt(Ops[2], ResultType);
+    } else if (datatype == neon_datatype_unsigned) {
+      Ops[1] = Builder.CreateZExt(Ops[1], ResultType);
+      Ops[2] = Builder.CreateZExt(Ops[2], ResultType);
+    } else
       return BadImmediateError(exp, Result);
 
-    intFn = Intrinsic::getDeclaration(TheModule, intID, &ResultType, 1);
-    Result = Builder.CreateCall3(intFn, Ops[0], Ops[1], Ops[2]);
+    Ops[1] = Builder.CreateMul(Ops[1], Ops[2]);
+    Result = Builder.CreateAdd(Ops[0], Ops[1]);
     break;
 
   case NEON_BUILTIN_vmlsl_lane:
@@ -952,15 +954,17 @@
         return UnexpectedError("%Hinvalid lane number", exp, Result);
       Ops[2] = BuildDupLane(Ops[2], LaneVal, NUnits, Builder);
     }
-    if (datatype == neon_datatype_signed)
-      intID = Intrinsic::arm_neon_vmlsls;
-    else if (datatype == neon_datatype_unsigned)
-      intID = Intrinsic::arm_neon_vmlslu;
-    else
+    if (datatype == neon_datatype_signed) {
+      Ops[1] = Builder.CreateSExt(Ops[1], ResultType);
+      Ops[2] = Builder.CreateSExt(Ops[2], ResultType);
+    } else if (datatype == neon_datatype_unsigned) {
+      Ops[1] = Builder.CreateZExt(Ops[1], ResultType);
+      Ops[2] = Builder.CreateZExt(Ops[2], ResultType);
+    } else
       return BadImmediateError(exp, Result);
 
-    intFn = Intrinsic::getDeclaration(TheModule, intID, &ResultType, 1);
-    Result = Builder.CreateCall3(intFn, Ops[0], Ops[1], Ops[2]);
+    Ops[1] = Builder.CreateMul(Ops[1], Ops[2]);
+    Result = Builder.CreateSub(Ops[0], Ops[1]);
     break;
 
   case NEON_BUILTIN_vqdmulh_lane:
@@ -1040,17 +1044,22 @@
         return UnexpectedError("%Hinvalid lane number", exp, Result);
       Ops[1] = BuildDupLane(Ops[1], LaneVal, NUnits, Builder);
     }
-    if (datatype == neon_datatype_polynomial)
+    if (datatype == neon_datatype_polynomial) {
       intID = Intrinsic::arm_neon_vmullp;
-    else if (datatype == neon_datatype_signed)
-      intID = Intrinsic::arm_neon_vmulls;
-    else if (datatype == neon_datatype_unsigned)
-      intID = Intrinsic::arm_neon_vmullu;
-    else
+      intFn = Intrinsic::getDeclaration(TheModule, intID, &ResultType, 1);
+      Result = Builder.CreateCall2(intFn, Ops[0], Ops[1]);
+      break;
+    }
+    if (datatype == neon_datatype_signed) {
+      Ops[0] = Builder.CreateSExt(Ops[0], ResultType);
+      Ops[1] = Builder.CreateSExt(Ops[1], ResultType);
+    } else if (datatype == neon_datatype_unsigned) {
+      Ops[0] = Builder.CreateZExt(Ops[0], ResultType);
+      Ops[1] = Builder.CreateZExt(Ops[1], ResultType);
+    } else
       return BadImmediateError(exp, Result);
 
-    intFn = Intrinsic::getDeclaration(TheModule, intID, &ResultType, 1);
-    Result = Builder.CreateCall2(intFn, Ops[0], Ops[1]);
+    Result = Builder.CreateMul(Ops[0], Ops[1]);
     break;
 
   case NEON_BUILTIN_vqdmull_n: