diff options
| author | Zack Rusin <zack@tungstengraphics.com> | 2007-10-18 08:12:48 -0400 |
|---|---|---|
| committer | Zack Rusin <zack@tungstengraphics.com> | 2007-10-24 11:21:04 -0400 |
| commit | e9a623d6a69718e3a9cc46dbb54cb4e7bd79f09c (patch) | |
| tree | b9b8a165f211eb76a12e797d65342290cbecf635 /src/mesa/pipe/llvm/instructions.cpp | |
| parent | 3ae767dd073e8c24fc159cb86f89e61ea7a0e85f (diff) | |
implement min and max
Diffstat (limited to 'src/mesa/pipe/llvm/instructions.cpp')
| -rw-r--r-- | src/mesa/pipe/llvm/instructions.cpp | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/mesa/pipe/llvm/instructions.cpp b/src/mesa/pipe/llvm/instructions.cpp index d43a617d35..2dd1d1861c 100644 --- a/src/mesa/pipe/llvm/instructions.cpp +++ b/src/mesa/pipe/llvm/instructions.cpp @@ -413,3 +413,105 @@ llvm::Value * Instructions::lg2(llvm::Value *in) callFLog(z), callFLog(w)), const_vec); } +llvm::Value * Instructions::min(llvm::Value *in1, llvm::Value *in2) +{ + ExtractElementInst *x1 = new ExtractElementInst(in1, unsigned(0), + name("x1"), + m_block); + ExtractElementInst *y1 = new ExtractElementInst(in1, unsigned(1), + name("y1"), + m_block); + ExtractElementInst *z1 = new ExtractElementInst(in1, unsigned(2), + name("z1"), + m_block); + ExtractElementInst *w1 = new ExtractElementInst(in1, unsigned(3), + name("w1"), + m_block); + + ExtractElementInst *x2 = new ExtractElementInst(in2, unsigned(0), + name("x2"), + m_block); + ExtractElementInst *y2 = new ExtractElementInst(in2, unsigned(1), + name("y2"), + m_block); + ExtractElementInst *z2 = new ExtractElementInst(in2, unsigned(2), + name("z2"), + m_block); + ExtractElementInst *w2 = new ExtractElementInst(in2, unsigned(3), + name("w2"), + m_block); + + FCmpInst *xcmp = new FCmpInst(FCmpInst::FCMP_OLT, x1, x2, + name("xcmp"), m_block); + SelectInst *selx = new SelectInst(xcmp, x1, x2, + name("selx"), m_block); + + FCmpInst *ycmp = new FCmpInst(FCmpInst::FCMP_OLT, y1, y2, + name("ycmp"), m_block); + SelectInst *sely = new SelectInst(ycmp, y1, y2, + name("sely"), m_block); + + FCmpInst *zcmp = new FCmpInst(FCmpInst::FCMP_OLT, z1, z2, + name("zcmp"), m_block); + SelectInst *selz = new SelectInst(zcmp, z1, z2, + name("selz"), m_block); + + FCmpInst *wcmp = new FCmpInst(FCmpInst::FCMP_OLT, w1, w2, + name("wcmp"), m_block); + SelectInst *selw = new SelectInst(wcmp, w1, w2, + name("selw"), m_block); + + return vectorFromVals(selx, sely, selz, selw); +} + +llvm::Value * Instructions::max(llvm::Value *in1, llvm::Value *in2) +{ + ExtractElementInst *x1 = new ExtractElementInst(in1, unsigned(0), + name("x1"), + m_block); + ExtractElementInst *y1 = new ExtractElementInst(in1, unsigned(1), + name("y1"), + m_block); + ExtractElementInst *z1 = new ExtractElementInst(in1, unsigned(2), + name("z1"), + m_block); + ExtractElementInst *w1 = new ExtractElementInst(in1, unsigned(3), + name("w1"), + m_block); + + ExtractElementInst *x2 = new ExtractElementInst(in2, unsigned(0), + name("x2"), + m_block); + ExtractElementInst *y2 = new ExtractElementInst(in2, unsigned(1), + name("y2"), + m_block); + ExtractElementInst *z2 = new ExtractElementInst(in2, unsigned(2), + name("z2"), + m_block); + ExtractElementInst *w2 = new ExtractElementInst(in2, unsigned(3), + name("w2"), + m_block); + + FCmpInst *xcmp = new FCmpInst(FCmpInst::FCMP_OGT, x1, x2, + name("xcmp"), m_block); + SelectInst *selx = new SelectInst(xcmp, x1, x2, + name("selx"), m_block); + + FCmpInst *ycmp = new FCmpInst(FCmpInst::FCMP_OGT, y1, y2, + name("ycmp"), m_block); + SelectInst *sely = new SelectInst(ycmp, y1, y2, + name("sely"), m_block); + + FCmpInst *zcmp = new FCmpInst(FCmpInst::FCMP_OGT, z1, z2, + name("zcmp"), m_block); + SelectInst *selz = new SelectInst(zcmp, z1, z2, + name("selz"), m_block); + + FCmpInst *wcmp = new FCmpInst(FCmpInst::FCMP_OGT, w1, w2, + name("wcmp"), m_block); + SelectInst *selw = new SelectInst(wcmp, w1, w2, + name("selw"), m_block); + + return vectorFromVals(selx, sely, selz, selw); +} + |