Subzero: Improve debugging controls, plus minor refactoring.
1. Decorate the list of live-in and live-out variables with register assignments in the dump() output. This helps one to assess register pressure.
2. Fix a bug where the DisableInternal flag wasn't being honored for function definitions.
3. Add a -translate-only=<symbol> to limit translation to a single function or global variable. This makes it easier to focus on debugging a single function.
4. Change the -no-phi-edge-split option to -phi-edge-split and invert the meaning, to better not avoid the non double negatives.
BUG= none
R=jvoung@chromium.org
Review URL: https://codereview.chromium.org/673783002
diff --git a/src/IceTargetLoweringX8632.cpp b/src/IceTargetLoweringX8632.cpp
index 98b18dc..8ea5882 100644
--- a/src/IceTargetLoweringX8632.cpp
+++ b/src/IceTargetLoweringX8632.cpp
@@ -4451,7 +4451,7 @@
// If external and not initialized, this must be a cross test.
// Don't generate a declaration for such cases.
- bool IsExternal = Var.isExternal();
+ bool IsExternal = Var.isExternal() || Ctx->getFlags().DisableInternal;
if (IsExternal && !Var.hasInitializer()) return;
bool HasNonzeroInitializer = Var.hasNonzeroInitializer();
