From: Zack Rusin <zack@tungstengraphics.com>
Date: Mon, 22 Oct 2007 15:27:34 +0000 (-0400)
Subject: Implement SGE and SLT
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=743e96eec5f89cf55873b82ee58b4a06d094c0e9;p=mesa.git

Implement SGE and SLT
---

diff --git a/src/mesa/pipe/llvm/instructions.cpp b/src/mesa/pipe/llvm/instructions.cpp
index 044b4478468..1c42a37c742 100644
--- a/src/mesa/pipe/llvm/instructions.cpp
+++ b/src/mesa/pipe/llvm/instructions.cpp
@@ -600,6 +600,62 @@ llvm::Function * Instructions::declarePrintf()
   return func_printf;
 }
 
+llvm::Value * Instructions::sge(llvm::Value *in1, llvm::Value *in2)
+{
+   Constant *const1f = ConstantFP::get(Type::FloatTy, APFloat(1.000000e+00f));
+   Constant *const0f = Constant::getNullValue(Type::FloatTy);
+
+   ExtractElementInst *x1 = new ExtractElementInst(in1, unsigned(0), name("x1"), m_block);
+   ExtractElementInst *x2 = new ExtractElementInst(in2, unsigned(0), name("x2"), m_block);
+   FCmpInst *xcmp = new FCmpInst(FCmpInst::FCMP_OGE, x1, x2, name("xcmp"), m_block);
+   SelectInst *x = new SelectInst(xcmp, const1f, const0f, name("xsel"), m_block);
+
+   ExtractElementInst *y1 = new ExtractElementInst(in1, unsigned(1), name("y1"), m_block);
+   ExtractElementInst *y2 = new ExtractElementInst(in2, unsigned(1), name("y2"), m_block);
+   FCmpInst *ycmp = new FCmpInst(FCmpInst::FCMP_OGE, y1, y2, name("ycmp"), m_block);
+   SelectInst *y = new SelectInst(ycmp, const1f, const0f, name("ysel"), m_block);
+
+   ExtractElementInst *z1 = new ExtractElementInst(in1, unsigned(2), name("z1"), m_block);
+   ExtractElementInst *z2 = new ExtractElementInst(in2, unsigned(2), name("z2"), m_block);
+   FCmpInst *zcmp = new FCmpInst(FCmpInst::FCMP_OGE, z1, z2, name("zcmp"), m_block);
+   SelectInst *z = new SelectInst(zcmp, const1f, const0f, name("zsel"), m_block);
+
+   ExtractElementInst *w1 = new ExtractElementInst(in1, unsigned(3), name("w1"), m_block);
+   ExtractElementInst *w2 = new ExtractElementInst(in2, unsigned(3), name("w2"), m_block);
+   FCmpInst *wcmp = new FCmpInst(FCmpInst::FCMP_OGE, w1, w2, name("wcmp"), m_block);
+   SelectInst *w = new SelectInst(wcmp, const1f, const0f, name("wsel"), m_block);
+
+   return vectorFromVals(x, y, z, w);
+}
+
+
+llvm::Value * Instructions::slt(llvm::Value *in1, llvm::Value *in2)
+{
+   Constant *const1f = ConstantFP::get(Type::FloatTy, APFloat(1.000000e+00f));
+   Constant *const0f = Constant::getNullValue(Type::FloatTy);
+
+   ExtractElementInst *x1 = new ExtractElementInst(in1, unsigned(0), name("x1"), m_block);
+   ExtractElementInst *x2 = new ExtractElementInst(in2, unsigned(0), name("x2"), m_block);
+   FCmpInst *xcmp = new FCmpInst(FCmpInst::FCMP_OLT, x1, x2, name("xcmp"), m_block);
+   SelectInst *x = new SelectInst(xcmp, const1f, const0f, name("xsel"), m_block);
+
+   ExtractElementInst *y1 = new ExtractElementInst(in1, unsigned(1), name("y1"), m_block);
+   ExtractElementInst *y2 = new ExtractElementInst(in2, unsigned(1), name("y2"), m_block);
+   FCmpInst *ycmp = new FCmpInst(FCmpInst::FCMP_OLT, y1, y2, name("ycmp"), m_block);
+   SelectInst *y = new SelectInst(ycmp, const1f, const0f, name("ysel"), m_block);
+
+   ExtractElementInst *z1 = new ExtractElementInst(in1, unsigned(2), name("z1"), m_block);
+   ExtractElementInst *z2 = new ExtractElementInst(in2, unsigned(2), name("z2"), m_block);
+   FCmpInst *zcmp = new FCmpInst(FCmpInst::FCMP_OLT, z1, z2, name("zcmp"), m_block);
+   SelectInst *z = new SelectInst(zcmp, const1f, const0f, name("zsel"), m_block);
+
+   ExtractElementInst *w1 = new ExtractElementInst(in1, unsigned(3), name("w1"), m_block);
+   ExtractElementInst *w2 = new ExtractElementInst(in2, unsigned(3), name("w2"), m_block);
+   FCmpInst *wcmp = new FCmpInst(FCmpInst::FCMP_OLT, w1, w2, name("wcmp"), m_block);
+   SelectInst *w = new SelectInst(wcmp, const1f, const0f, name("wsel"), m_block);
+
+   return vectorFromVals(x, y, z, w);
+}
 
 /*
 typedef __attribute__(( ocu_vector_type(4) )) float float4;
@@ -775,3 +831,4 @@ Constant* const_packed_14 = ConstantVector::get(VectorTy_2, const_packed_14_elem
 }
    return func_lit;
 }
+
diff --git a/src/mesa/pipe/llvm/instructions.h b/src/mesa/pipe/llvm/instructions.h
index b4948ed2409..557ae3730ba 100644
--- a/src/mesa/pipe/llvm/instructions.h
+++ b/src/mesa/pipe/llvm/instructions.h
@@ -33,6 +33,8 @@ public:
    llvm::Value *pow(llvm::Value *in1, llvm::Value *in2);
    llvm::Value *rcp(llvm::Value *in);
    llvm::Value *rsq(llvm::Value *in);
+   llvm::Value *sge(llvm::Value *in1, llvm::Value *in2);
+   llvm::Value *slt(llvm::Value *in1, llvm::Value *in2);
    llvm::Value *sub(llvm::Value *in1, llvm::Value *in2);
 
    void printVector(llvm::Value *val);
diff --git a/src/mesa/pipe/llvm/llvmtgsi.cpp b/src/mesa/pipe/llvm/llvmtgsi.cpp
index e1bb281a945..d40a7cc380a 100644
--- a/src/mesa/pipe/llvm/llvmtgsi.cpp
+++ b/src/mesa/pipe/llvm/llvmtgsi.cpp
@@ -235,9 +235,13 @@ translate_instruction(llvm::Module *module,
       out = instr->max(inputs[0], inputs[1]);
    }
       break;
-   case TGSI_OPCODE_SLT:
+   case TGSI_OPCODE_SLT: {
+      out = instr->slt(inputs[0], inputs[1]);
+   }
       break;
-   case TGSI_OPCODE_SGE:
+   case TGSI_OPCODE_SGE: {
+      out = instr->sge(inputs[0], inputs[1]);
+   }
       break;
    case TGSI_OPCODE_MAD: {
       out = instr->madd(inputs[0], inputs[1], inputs[2]);