diff options
Diffstat (limited to 'src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp')
-rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp | 6 |
1 files changed, 6 insertions, 0 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 04ac288..0cb21e8 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_target_nvc0.cpp @@ -615,6 +615,12 @@ bool TargetNVC0::canDualIssue(const Instruction *a, const Instruction *b) const // not if the 2nd instruction isn't necessarily executed if (clA == OPCLASS_TEXTURE || clA == OPCLASS_FLOW) return false; + + // Check that a and b don't write to the same sources, nor that b reads + // anything that a writes. + if (!a->canCommuteDefDef(b) || !a->canCommuteDefSrc(b)) + return false; + // anything with MOV if (a->op == OP_MOV || b->op == OP_MOV) return true; |