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| author | Karol Herbst <karolherbst@gmail.com> | 2016-08-13 11:54:52 +0200 |
|---|---|---|
| committer | Ilia Mirkin <imirkin@alum.mit.edu> | 2016-09-03 13:53:09 -0400 |
| commit | ae7eb93e6caaf2a75fdaab071c0e5e9883376a82 (patch) | |
| tree | 388f234f493e279b5c40a1112e76138ac7865169 | |
| parent | 7e891f90c701aa1c851f1846857daa75bbb65876 (diff) | |
| download | external_mesa3d-ae7eb93e6caaf2a75fdaab071c0e5e9883376a82.zip external_mesa3d-ae7eb93e6caaf2a75fdaab071c0e5e9883376a82.tar.gz external_mesa3d-ae7eb93e6caaf2a75fdaab071c0e5e9883376a82.tar.bz2 | |
nvc0/ir: allow min/max instructions to be dual-issued in pairs
changes for GpuTest /test=pixmark_piano /benchmark /no_scorebox /msaa=0
/benchmark_duration_ms=60000 /width=1024 /height=640:
inst_executed: 1.03G
inst_issued1: 614M -> 580M
inst_issued2: 213M -> 230M
score: 1021 -> 1030
Signed-off-by: Karol Herbst <karolherbst@gmail.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp index 0cb21e8..f5981de 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp @@ -625,9 +625,19 @@ bool TargetNVC0::canDualIssue(const Instruction *a, const Instruction *b) const if (a->op == OP_MOV || b->op == OP_MOV) return true; if (clA == clB) { - // only F32 arith or integer additions - if (clA != OPCLASS_ARITH) + switch (clA) { + // there might be more + case OPCLASS_COMPARE: + if ((a->op == OP_MIN || a->op == OP_MAX) && + (b->op == OP_MIN || b->op == OP_MAX)) + break; + return false; + case OPCLASS_ARITH: + break; + default: return false; + } + // only F32 arith or integer additions return (a->dType == TYPE_F32 || a->op == OP_ADD || b->dType == TYPE_F32 || b->op == OP_ADD); } |