Calculate the number of out vregs.

Determine the number of out vregs needed by invokes that
actually make a call, and by `HStringBuilderAppend`s.
This can yield smaller frame sizes of compiled methods when
some calls are inlined or fully intrinsified.

Test: m test-art-host-gtest
Test: testrunner.py --host --optimizing
Bug: 358519867
Change-Id: I4930a9bd811b1de14658f5ef44e65eadea6a7961

1 files changed, 4 insertions, 0 deletions

diff --git a/compiler/optimizing/optimizing_unit_test.h b/compiler/optimizing/optimizing_unit_test.h
index b256d439fb..c8412b876b 100644
--- a/compiler/optimizing/optimizing_unit_test.h
+++ b/compiler/optimizing/optimizing_unit_test.h
@@ -542,9 +542,13 @@ class OptimizingUnitTestHelper {
                                           const std::vector<HInstruction*>& args,
                                           uint32_t dex_pc = kNoDexPc) {
     MethodReference method_reference{/* file= */ &graph_->GetDexFile(), /* index= */ method_idx_++};
+    size_t num_64bit_args = std::count_if(args.begin(), args.end(), [](HInstruction* insn) {
+      return DataType::Is64BitType(insn->GetType());
+    });
     HInvokeStaticOrDirect* invoke = new (GetAllocator())
         HInvokeStaticOrDirect(GetAllocator(),
                               args.size(),
+                              /* number_of_out_vregs= */ args.size() + num_64bit_args,
                               return_type,
                               dex_pc,
                               method_reference,