Signed-off-by: Tobias Klausmann <tobias.johannes.klausm...@mni.thm.de> --- V3: Use BuildUtil for the Immediate instead of a type conversion
.../drivers/nouveau/codegen/nv50_ir_peephole.cpp | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp index 538e745..e4d91d7 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp @@ -944,6 +944,23 @@ ConstantFolding::opnd(Instruction *i, ImmediateValue &imm0, int s) case OP_EX2: unary(i, imm0); break; + case OP_BFIND: { + int32_t res; + switch (i->dType) { + case TYPE_S32: res = util_last_bit_signed(imm0.reg.data.s32) - 1; break; + case TYPE_U32: res = util_last_bit(imm0.reg.data.u32) - 1; break; + default: + return; + } + if (i->subOp == NV50_IR_SUBOP_BFIND_SAMT && res >= 0) + res = 31 - res; + bld.setPosition(i, false); /* make sure bld is init'ed */ + i->setSrc(0, bld.mkImm(res)); + i->setSrc(1, NULL); + i->op = OP_MOV; + i->subOp = 0; + break; + } default: return; } -- 1.8.4.5 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev