spirv-fuzz: Add GetParameters (#3454)
Adds a GetParameters function to fuzzerutil.
diff --git a/source/fuzz/fuzzer_util.cpp b/source/fuzz/fuzzer_util.cpp
index d439d47..79881fc 100644
--- a/source/fuzz/fuzzer_util.cpp
+++ b/source/fuzz/fuzzer_util.cpp
@@ -675,6 +675,18 @@
*min_max.second == hi;
}
+std::vector<opt::Instruction*> GetParameters(opt::IRContext* ir_context,
+ uint32_t function_id) {
+ auto* function = FindFunction(ir_context, function_id);
+ assert(function && "|function_id| is invalid");
+
+ std::vector<opt::Instruction*> result;
+ function->ForEachParam(
+ [&result](opt::Instruction* inst) { result.push_back(inst); });
+
+ return result;
+}
+
} // namespace fuzzerutil
} // namespace fuzz
diff --git a/source/fuzz/fuzzer_util.h b/source/fuzz/fuzzer_util.h
index 99cfff9..0cc5d49 100644
--- a/source/fuzz/fuzzer_util.h
+++ b/source/fuzz/fuzzer_util.h
@@ -261,6 +261,11 @@
bool IsPermutationOfRange(const std::vector<uint32_t>& arr, uint32_t lo,
uint32_t hi);
+// Returns OpFunctionParameter instructions corresponding to the function
+// with result id |function_id|.
+std::vector<opt::Instruction*> GetParameters(opt::IRContext* ir_context,
+ uint32_t function_id);
+
} // namespace fuzzerutil
} // namespace fuzz
