search for: nv50_ir_subop_bfind_samt

.....a56756c 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp @@ -556,6 +556,20 @@ ConstantFolding::expr(Instruction *i, } break; } + case OP_BFIND: { + int shift = 0; + if (i->subOp == NV50_IR_SUBOP_BFIND_SAMT) + shift = 32 - (b->data.u32 & 0xff); + switch (i->dType) { + case TYPE_S32: + res.data.s32 = util_last_bit_signed(a->data.s32 >> shift)- 1; break; + case TYPE_U32: + res.data.u32 = util_last_bit(a->data.u32 >> shift) -1; break; +...

And another try for constant folding of Instructions for nvc0. Please Review this! Thanks, Tobias Klausmann Tobias Klausmann (4): nvc0/ir: clear subop when folding constant expressions nvc0/ir: Handle reverse subop for OP_EXTBF when folding constant expressions nvc0/ir: Handle OP_BFIND when folding constant expressions nvc0/ir: Handle OP_POPCNT when folding constant expressions

...IND: { + 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; + i->setSrc(0, new_ImmediateValue(i->bb->getProgram(), (uint32_t)res)); + i->setSrc(1, NULL); + i->op = OP_MOV; + i->subOp = 0; + break; + } default: return; } -- 1.8.4.5

Hi, please review the following 4 patches: 1b1cfc6 nvc0/ir: Handle OP_BFIND when folding constant expressions d2d2727 nvc0/ir: Handle OP_POPCNT when folding constant expressions 86a1ee6 nvc0/ir: Handle reverse subop for OP_EXTBF when folding constant expressions 84563bf nvc0/ir: clear subop when folding constant expressions src/gallium/drivers/nouveau/codegen/nv50_ir_peephole.cpp | 39

Yet another try for constant folding of Instructions for nvc0. Please Review this again! (Hopefully the last time ;-) ) Tobias Klausmann (4): nvc0/ir: clear subop when folding constant expressions nvc0/ir: Handle reverse subop for OP_EXTBF when folding constant expressions nvc0/ir: Handle OP_BFIND when folding constant expressions nvc0/ir: Handle OP_POPCNT when folding constant

Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu> --- .../drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp | 66 +++++++++++++++++++++- 1 file changed, 63 insertions(+), 3 deletions(-) diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_emit_nvc0.cpp index dfb093c..e38a3b8 100644 ---