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Add OpBranchConditional

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This commit is contained in:
ReinUsesLisp 2018-08-31 04:17:16 -03:00
parent cdeeb9127c
commit a6946d3c8e
2 changed files with 17 additions and 0 deletions
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4
include/sirit/sirit.h
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@ -167,6 +167,10 @@ public:
/// Unconditional jump to label. /// Unconditional jump to label.
Ref Branch(Ref target_label); Ref Branch(Ref target_label);
/// If condition is true branch to true_label, otherwise branch to false_label.
Ref BranchConditional(Ref condition, Ref true_label, Ref false_label,
std::uint32_t true_weight = 0, std::uint32_t false_weight = 0);
/// Returns with no value from a function with void return type. /// Returns with no value from a function with void return type.
Ref Return(); Ref Return();

13
src/insts/flow.cpp
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@ -36,6 +36,19 @@ Ref Module::Branch(Ref target_label) {
return AddCode(op); return AddCode(op);
} }
Ref Module::BranchConditional(Ref condition, Ref true_label, Ref false_label,
std::uint32_t true_weight, std::uint32_t false_weight) {
Op* op{new Op(spv::Op::OpBranchConditional)};
op->Add(condition);
op->Add(true_label);
op->Add(false_label);
if (true_weight != 0 || false_weight != 0) {
op->Add(Literal(true_weight));
op->Add(Literal(false_weight));
}
return AddCode(op);
}
Ref Module::Return() { Ref Module::Return() {
return AddCode(spv::Op::OpReturn); return AddCode(spv::Op::OpReturn);
} }