Implement ex2 opcode

3 files changed, 13 insertions, 1 deletions

diff --git a/src/mesa/pipe/llvm/instructions.cpp b/src/mesa/pipe/llvm/instructions.cpp
index ee67ae0eeda..1e6b74eac62 100644
--- a/src/mesa/pipe/llvm/instructions.cpp
+++ b/src/mesa/pipe/llvm/instructions.cpp
@@ -302,3 +302,12 @@ llvm::Value * Instructions::dst(llvm::Value *in1, llvm::Value *in2)
                          ry, z, w);
 }
 
+llvm::Value * Instructions::ex2(llvm::Value *in)
+{
+   llvm::Value *val = callPow(ConstantFP::get(Type::FloatTy, APFloat(2.f)),
+                              new ExtractElementInst(in, unsigned(0),
+                                                     name("x1"),
+                                                     m_block));
+   return vectorFromVals(val, val, val, val);
+}
+
diff --git a/src/mesa/pipe/llvm/instructions.h b/src/mesa/pipe/llvm/instructions.h
index 0ca9bd25a76..de33b79e378 100644
--- a/src/mesa/pipe/llvm/instructions.h
+++ b/src/mesa/pipe/llvm/instructions.h
@@ -19,6 +19,7 @@ public:
    llvm::Value *dp4(llvm::Value *in1, llvm::Value *in2);
    llvm::Value *dph(llvm::Value *in1, llvm::Value *in2);
    llvm::Value *dst(llvm::Value *in1, llvm::Value *in2);
+   llvm::Value *ex2(llvm::Value *in1);
    llvm::Value *lit(llvm::Value *in1);
    llvm::Value *madd(llvm::Value *in1, llvm::Value *in2,
                      llvm::Value *in2);
diff --git a/src/mesa/pipe/llvm/llvmtgsi.cpp b/src/mesa/pipe/llvm/llvmtgsi.cpp
index 91c2d9beb8e..5ad45ff6ccf 100644
--- a/src/mesa/pipe/llvm/llvmtgsi.cpp
+++ b/src/mesa/pipe/llvm/llvmtgsi.cpp
@@ -249,7 +249,9 @@ translate_instruction(llvm::Module *module,
       break;
    case TGSI_OPCODE_ROUND:
       break;
-   case TGSI_OPCODE_EXPBASE2:
+   case TGSI_OPCODE_EXPBASE2: {
+      out = instr->ex2(inputs[0]);
+   }
       break;
    case TGSI_OPCODE_LOGBASE2:
       break;