diff options
| -rw-r--r-- | src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp index 08a73d79781..1d2caaba72f 100644 --- a/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp +++ b/src/gallium/drivers/nouveau/codegen/nv50_ir_from_tgsi.cpp @@ -2893,6 +2893,12 @@ Converter::handleInstruction(const struct tgsi_full_instruction *insn) bb->cfg.attach(&loopBB->cfg, Graph::Edge::BACK); } setPosition(reinterpret_cast<BasicBlock *>(breakBBs.pop().u.p), true); + + // If the loop never breaks (e.g. only has RET's inside), then there + // will be no way to get to the break bb. However BGNLOOP will have + // already made a PREBREAK to it, so it must be in the CFG. + if (getBB()->cfg.incidentCount() == 0) + loopBB->cfg.attach(&getBB()->cfg, Graph::Edge::TREE); } break; case TGSI_OPCODE_BRK: |