From: Karol Herbst <g...@karolherbst.de> helps shaders in saints row IV, bioshock infinite and shadow warrior
total instructions in shared programs : 1921966 -> 1910935 (-0.57%) total gprs used in shared programs : 251863 -> 251728 (-0.05%) total local used in shared programs : 5673 -> 5673 (0.00%) total bytes used in shared programs : 17622728 -> 17521824 (-0.57%) local gpr inst bytes helped 0 137 719 719 hurt 0 12 0 0 v2: remove this opt for OP_SLCT and check against float for OP_SET Signed-off-by: Karol Herbst <nouv...@karolherbst.de> --- .../drivers/nouveau/codegen/nv50_ir_peephole.cpp | 29 ++++++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp index 7b51ce0..eb43f6c 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp @@ -1510,6 +1510,7 @@ private: void handleCVT_CVT(Instruction *); void handleCVT_EXTBF(Instruction *); void handleSUCLAMP(Instruction *); + void handleNEG(Instruction *); BuildUtil bld; }; @@ -1982,6 +1983,31 @@ AlgebraicOpt::handleSUCLAMP(Instruction *insn) insn->setSrc(0, add->getSrc(s)); } +// NEG(AND(SET, 1)) -> SET +void +AlgebraicOpt::handleNEG(Instruction *i) { + Instruction *src = i->getSrc(0)->getInsn(); + if (src->op == OP_AND) { + ImmediateValue imm; + int b = 1; + if (src->src(0).getImmediate(imm)) + b = 1; + else if (src->src(1).getImmediate(imm)) + b = 0; + else + return; + + if (imm.isInteger(1)) { + Value *srcAnd = src->getSrc(b); + Instruction *set = srcAnd->getInsn(); + if (set->op == OP_SET && !isFloatType(set->dType)) { + i->def(0).replace(srcAnd->getInsn()->getDef(0), false); + return; + } + } + } +} + bool AlgebraicOpt::visit(BasicBlock *bb) { @@ -2019,6 +2045,9 @@ AlgebraicOpt::visit(BasicBlock *bb) case OP_SUCLAMP: handleSUCLAMP(i); break; + case OP_NEG: + handleNEG(i); + break; default: break; } -- 2.7.0 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev