[llvm-commits] [llvm] r123043 - /llvm/trunk/utils/TableGen/NeonEmitter.cpp
Bob Wilson
bob.wilson at apple.com
Fri Jan 7 15:40:49 PST 2011
Author: bwilson
Date: Fri Jan 7 17:40:49 2011
New Revision: 123043
URL: http://llvm.org/viewvc/llvm-project?rev=123043&view=rev
Log:
Use __builtin_shufflevector to implement vget_low and vget_high intrinsics.
This was suggested by Edmund Grimley Evans in pr8411.
Modified:
llvm/trunk/utils/TableGen/NeonEmitter.cpp
Modified: llvm/trunk/utils/TableGen/NeonEmitter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/utils/TableGen/NeonEmitter.cpp?rev=123043&r1=123042&r2=123043&view=diff
==============================================================================
--- llvm/trunk/utils/TableGen/NeonEmitter.cpp (original)
+++ llvm/trunk/utils/TableGen/NeonEmitter.cpp Fri Jan 7 17:40:49 2011
@@ -576,9 +576,7 @@
std::string ts = TypeString(proto[0], typestr);
std::string s;
- if (op == OpHi || op == OpLo) {
- s = "union { " + ts + " r; double d; } u; u.d = ";
- } else if (!define) {
+ if (!define) {
s = "return ";
}
@@ -727,10 +725,12 @@
s += ", (int64x1_t)__b, 0, 1);";
break;
case OpHi:
- s += "(((float64x2_t)__a)[1]);";
+ s += "(" + ts +
+ ")__builtin_shufflevector((int64x2_t)__a, (int64x2_t)__a, 1);";
break;
case OpLo:
- s += "(((float64x2_t)__a)[0]);";
+ s += "(" + ts +
+ ")__builtin_shufflevector((int64x2_t)__a, (int64x2_t)__a, 0);";
break;
case OpDup:
s += Duplicate(nElts, typestr, "__a") + ";";
@@ -804,11 +804,6 @@
throw "unknown OpKind!";
break;
}
- if (op == OpHi || op == OpLo) {
- if (!define)
- s += " return";
- s += " u.r;";
- }
return s;
}
@@ -1135,11 +1130,6 @@
OS << " " << TypeString('d', TDTypeVec[i]) << ";\n";
}
OS << "\n";
- OS << "typedef __attribute__((__vector_size__(8))) "
- "double float64x1_t;\n";
- OS << "typedef __attribute__((__vector_size__(16))) "
- "double float64x2_t;\n";
- OS << "\n";
// Emit struct typedefs.
for (unsigned vi = 2; vi != 5; ++vi) {
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