diff options
| author | Zack Rusin <zack@tungstengraphics.com> | 2007-10-17 13:34:25 -0400 |
|---|---|---|
| committer | Zack Rusin <zack@tungstengraphics.com> | 2007-10-24 11:21:04 -0400 |
| commit | 7abe3364b2c463fd3e96c2bc9d07aaa91bcfbc2c (patch) | |
| tree | b12db4c361215d69e3afb5094c8c3fa1c5ed3f60 /src/mesa/pipe/llvm/instructions.cpp | |
| parent | e20294be114c2593035afaf6fe0726e0ce628ed0 (diff) | |
Implement dot4 opcode
Diffstat (limited to 'src/mesa/pipe/llvm/instructions.cpp')
| -rw-r--r-- | src/mesa/pipe/llvm/instructions.cpp | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/mesa/pipe/llvm/instructions.cpp b/src/mesa/pipe/llvm/instructions.cpp index 31729d0f58..9e3b989600 100644 --- a/src/mesa/pipe/llvm/instructions.cpp +++ b/src/mesa/pipe/llvm/instructions.cpp @@ -226,3 +226,30 @@ llvm::Value * Instructions::rcp(llvm::Value *in1) return vectorFromVals(res, res, res, res); } +llvm::Value * Instructions::dp4(llvm::Value *in1, llvm::Value *in2) +{ + Value *mulRes = mul(in1, in2); + ExtractElementInst *x = new ExtractElementInst(mulRes, unsigned(0), + name("extractx"), + m_block); + ExtractElementInst *y = new ExtractElementInst(mulRes, unsigned(1), + name("extracty"), + m_block); + ExtractElementInst *z = new ExtractElementInst(mulRes, unsigned(2), + name("extractz"), + m_block); + ExtractElementInst *w = new ExtractElementInst(mulRes, unsigned(3), + name("extractw"), + m_block); + BinaryOperator *xy = BinaryOperator::create(Instruction::Add, x, y, + name("xy"), + m_block); + BinaryOperator *xyz = BinaryOperator::create(Instruction::Add, xy, z, + name("xyz"), + m_block); + BinaryOperator *dot4 = BinaryOperator::create(Instruction::Add, xyz, w, + name("dot4"), + m_block); + return vectorFromVals(dot4, dot4, dot4, dot4); +} + |