[llvm-commits] [dragonegg] r168869 - in /dragonegg/branches/release_32: src/x86/Target.cpp src/x86/x86_builtins test/validator/c/copysignp.c

[Duncan Sands]

Author: baldrick
Date: Thu Nov 29 05:35:45 2012
New Revision: 168869

URL: http://llvm.org/viewvc/llvm-project?rev=168869&view=rev
Log:
Backport the fix for PR12664 (r168787) to the 3.2 branch.  Original commit
message:
Add support for GCC's vector copysign builtins, fixing PR12664.

Added:
    dragonegg/branches/release_32/test/validator/c/copysignp.c
Modified:
    dragonegg/branches/release_32/src/x86/Target.cpp
    dragonegg/branches/release_32/src/x86/x86_builtins

Modified: dragonegg/branches/release_32/src/x86/Target.cpp
URL: http://llvm.org/viewvc/llvm-project/dragonegg/branches/release_32/src/x86/Target.cpp?rev=168869&r1=168868&r2=168869&view=diff
==============================================================================
--- dragonegg/branches/release_32/src/x86/Target.cpp (original)
+++ dragonegg/branches/release_32/src/x86/Target.cpp Thu Nov 29 05:35:45 2012
@@ -165,6 +165,29 @@
   case addpd256:
     Result = Builder.CreateFAdd(Ops[0], Ops[1]);
     return true;
+  case copysignpd:
+  case copysignpd256:
+  case copysignps:
+  case copysignps256: {
+    if (Ops.size() != 2)
+      return false;
+    VectorType *VecTy = dyn_cast<VectorType>(Ops[0]->getType());
+    if (Ops[1]->getType() != VecTy)
+      return false;
+    Type *EltTy = VecTy->getElementType();
+    unsigned EltBitWidth = EltTy->getPrimitiveSizeInBits();
+    Type *IntEltTy = IntegerType::get(Context, EltBitWidth);
+    Type *IntVecTy = VectorType::get(IntEltTy, VecTy->getNumElements());
+    APInt SignBit = APInt::getSignBit(EltBitWidth);
+    Constant *SignMask = ConstantInt::get(IntVecTy, SignBit);
+    Value *IntLHS = Builder.CreateBitCast(Ops[0], IntVecTy);
+    Value *IntRHS = Builder.CreateBitCast(Ops[1], IntVecTy);
+    Value *Sign = Builder.CreateAnd(IntRHS, SignMask);
+    Value *Abs = Builder.CreateAnd(IntLHS, ConstantExpr::getNot(SignMask));
+    Value *IntRes = Builder.CreateOr(Abs, Sign);
+    Result = Builder.CreateBitCast(IntRes, VecTy);
+    return true;
+  }
   case paddb:
   case paddw:
   case paddd:

Modified: dragonegg/branches/release_32/src/x86/x86_builtins
URL: http://llvm.org/viewvc/llvm-project/dragonegg/branches/release_32/src/x86/x86_builtins?rev=168869&r1=168868&r2=168869&view=diff
==============================================================================
--- dragonegg/branches/release_32/src/x86/x86_builtins (original)
+++ dragonegg/branches/release_32/src/x86/x86_builtins Thu Nov 29 05:35:45 2012
@@ -120,10 +120,10 @@
 //DEFINE_BUILTIN(comisdle),
 //DEFINE_BUILTIN(comisdlt),
 //DEFINE_BUILTIN(comisdneq),
-//DEFINE_BUILTIN(copysignpd),
-//DEFINE_BUILTIN(copysignpd256),
-//DEFINE_BUILTIN(copysignps),
-//DEFINE_BUILTIN(copysignps256),
+DEFINE_BUILTIN(copysignpd),
+DEFINE_BUILTIN(copysignpd256),
+DEFINE_BUILTIN(copysignps),
+DEFINE_BUILTIN(copysignps256),
 //DEFINE_BUILTIN(crc32di),
 //DEFINE_BUILTIN(crc32hi),
 //DEFINE_BUILTIN(crc32qi),

Added: dragonegg/branches/release_32/test/validator/c/copysignp.c
URL: http://llvm.org/viewvc/llvm-project/dragonegg/branches/release_32/test/validator/c/copysignp.c?rev=168869&view=auto
==============================================================================
--- dragonegg/branches/release_32/test/validator/c/copysignp.c (added)
+++ dragonegg/branches/release_32/test/validator/c/copysignp.c Thu Nov 29 05:35:45 2012
@@ -0,0 +1,7 @@
+// RUN: %dragonegg -S %s
+// PR12664
+
+typedef float v4sf __attribute__ ((vector_size (16)));
+v4sf foo(v4sf l, v4sf r) {
+  return __builtin_ia32_copysignps (l, r);
+}