[cfe-commits] r160308 - in /cfe/trunk: lib/CodeGen/CGBuiltin.cpp lib/CodeGen/CodeGenFunction.h test/CodeGen/builtins-mips-ovld.c

[Simon Atanasyan]

Author: atanasyan
Date: Mon Jul 16 13:52:02 2012
New Revision: 160308

URL: http://llvm.org/viewvc/llvm-project?rev=160308&view=rev
Log:
MIPS: Implement __builtin_mips_shll_qb builtin function overloading.
This function has two versions. The first one is used for a register operand.
The second one is used for an immediate number.

Added:
    cfe/trunk/test/CodeGen/builtins-mips-ovld.c
Modified:
    cfe/trunk/lib/CodeGen/CGBuiltin.cpp
    cfe/trunk/lib/CodeGen/CodeGenFunction.h

Modified: cfe/trunk/lib/CodeGen/CGBuiltin.cpp
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CGBuiltin.cpp?rev=160308&r1=160307&r2=160308&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CGBuiltin.cpp (original)
+++ cfe/trunk/lib/CodeGen/CGBuiltin.cpp Mon Jul 16 13:52:02 2012
@@ -1378,6 +1378,11 @@
   case llvm::Triple::ppc:
   case llvm::Triple::ppc64:
     return EmitPPCBuiltinExpr(BuiltinID, E);
+  case llvm::Triple::mips:
+  case llvm::Triple::mipsel:
+  case llvm::Triple::mips64:
+  case llvm::Triple::mips64el:
+    return EmitMipsBuiltinExpr(BuiltinID, E);
   default:
     return 0;
   }
@@ -2563,3 +2568,27 @@
   }
   }
 }
+
+Value *CodeGenFunction::EmitMipsBuiltinExpr(unsigned BuiltinID,
+                                            const CallExpr *E) {
+  SmallVector<Value*, 4> Ops;
+
+  for (unsigned i = 0, e = E->getNumArgs(); i != e; i++)
+    Ops.push_back(EmitScalarExpr(E->getArg(i)));
+
+  Intrinsic::ID ID = Intrinsic::not_intrinsic;
+
+  switch (BuiltinID) {
+  default: return 0;
+  case Mips::BI__builtin_mips_shll_qb:
+    llvm::APSInt Value;
+    if (E->getArg(1)->isIntegerConstantExpr(Value, getContext()))
+      ID = Intrinsic::mips_shll_qb;
+    else
+      ID = Intrinsic::mips_shll_qb_v;
+    break;
+  }
+
+  llvm::Function *F = CGM.getIntrinsic(ID);
+  return Builder.CreateCall(F, Ops, "");
+}

Modified: cfe/trunk/lib/CodeGen/CodeGenFunction.h
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/CodeGen/CodeGenFunction.h?rev=160308&r1=160307&r2=160308&view=diff
==============================================================================
--- cfe/trunk/lib/CodeGen/CodeGenFunction.h (original)
+++ cfe/trunk/lib/CodeGen/CodeGenFunction.h Mon Jul 16 13:52:02 2012
@@ -2276,6 +2276,7 @@
   llvm::Value *BuildVector(ArrayRef<llvm::Value*> Ops);
   llvm::Value *EmitX86BuiltinExpr(unsigned BuiltinID, const CallExpr *E);
   llvm::Value *EmitPPCBuiltinExpr(unsigned BuiltinID, const CallExpr *E);
+  llvm::Value *EmitMipsBuiltinExpr(unsigned BuiltinID, const CallExpr *E);
 
   llvm::Value *EmitObjCProtocolExpr(const ObjCProtocolExpr *E);
   llvm::Value *EmitObjCStringLiteral(const ObjCStringLiteral *E);

Added: cfe/trunk/test/CodeGen/builtins-mips-ovld.c
URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/builtins-mips-ovld.c?rev=160308&view=auto
==============================================================================
--- cfe/trunk/test/CodeGen/builtins-mips-ovld.c (added)
+++ cfe/trunk/test/CodeGen/builtins-mips-ovld.c Mon Jul 16 13:52:02 2012
@@ -0,0 +1,13 @@
+// REQUIRES: mips-registered-target
+// RUN: %clang_cc1 -triple mips-unknown-linux-gnu -emit-llvm -o - %s | FileCheck %s
+
+typedef signed char v4i8 __attribute__ ((vector_size(4)));
+
+void foo() {
+  v4i8 a = {1, 2, 3, 4};
+  int shift = 1;
+// CHECK: {{%.*}} = call <4 x i8> @llvm.mips.shll.qb(<4 x i8> {{%.*}}, i32 1)
+  v4i8 r1 = __builtin_mips_shll_qb(a, 1);
+// CHECK: {{%.*}} = call <4 x i8> @llvm.mips.shll.qb.v(<4 x i8> {{%.*}}, i32 {{%.*}})
+  v4i8 r2 = __builtin_mips_shll_qb(a, shift);
+}