diff options
| -rw-r--r-- | include/sirit/sirit.h | 6 | ||||
| -rw-r--r-- | src/instructions/flow.cpp | 6 |
2 files changed, 12 insertions, 0 deletions
diff --git a/include/sirit/sirit.h b/include/sirit/sirit.h index 781f84a..0a204d7 100644 --- a/include/sirit/sirit.h +++ b/include/sirit/sirit.h @@ -232,6 +232,12 @@ public: // Flow + /** + * The SSA phi function. + * @param operands An immutable span of variable, parent block pairs + */ + Id OpPhi(Id result_type, std::span<const Id> operands); + /// Declare a structured loop. Id OpLoopMerge(Id merge_block, Id continue_target, spv::LoopControlMask loop_control, std::span<const Id> literals = {}); diff --git a/src/instructions/flow.cpp b/src/instructions/flow.cpp index e40800c..85700d2 100644 --- a/src/instructions/flow.cpp +++ b/src/instructions/flow.cpp @@ -12,6 +12,12 @@ namespace Sirit { +Id Module::OpPhi(Id result_type, std::span<const Id> operands) { + assert(operands.size() % 2 == 0); + code->Reserve(3 + operands.size()); + return *code << OpId{spv::Op::OpPhi, result_type} << operands << EndOp{}; +} + Id Module::OpLoopMerge(Id merge_block, Id continue_target, spv::LoopControlMask loop_control, std::span<const Id> literals) { code->Reserve(4 + literals.size()); |