Various fixes related to integer negate operations.
- Emit an RSB instruction for HNeg nodes in the ARM code
generator instead of RSBS, as we do not need to update the
condition code flags in this case.
- Simply punt when trying to statically evaluate a long
unary operation, instead of aborting.
- Move a test case to the right place.
Change-Id: I35eb8dea58ed35258d4d8df77181159c3ab07b6f
diff --git a/compiler/optimizing/nodes.cc b/compiler/optimizing/nodes.cc
index 0505510..d624ad5 100644
--- a/compiler/optimizing/nodes.cc
+++ b/compiler/optimizing/nodes.cc
@@ -602,7 +602,11 @@
int32_t value = Evaluate(GetInput()->AsIntConstant()->GetValue());
return new(GetBlock()->GetGraph()->GetArena()) HIntConstant(value);
} else if (GetInput()->IsLongConstant()) {
- LOG(FATAL) << "Static evaluation of long unary operations is not yet implemented.";
+ // TODO: Implement static evaluation of long unary operations.
+ //
+ // Do not exit with a fatal condition here. Instead, simply
+ // return `nullptr' to notify the caller that this instruction
+ // cannot (yet) be statically evaluated.
return nullptr;
}
return nullptr;