From db548ffcbdc37dfde3e1a5dcd860ad13e66baa7c Mon Sep 17 00:00:00 2001
From: clc5q <clc5q@git.zephyr-software.com>
Date: Sun, 17 Jan 2016 01:53:14 +0000
Subject: [PATCH] Add debugging output for AnalyzeStackPointerDeltas().
Former-commit-id: 989e91b7eb2b735b37756bf7181a092a706467c8
---
src/base/SMPFunction.cpp | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/src/base/SMPFunction.cpp b/src/base/SMPFunction.cpp
index 3ebaaa8d..8213a5c7 100644
--- a/src/base/SMPFunction.cpp
+++ b/src/base/SMPFunction.cpp
@@ -1392,6 +1392,10 @@ bool SMPFunction::AnalyzeStackPointerDeltas(void) {
CurrBlock->SetProcessed(false);
ReprocessingAllocaBlocks = true;
DeltaIncrement = IncomingDelta - PrevIncomingDelta;
+ if (0 != (DeltaIncrement % 32)) { // 32 bytes is our alloca fudge increment
+ SMP_msg("WARNING: DeltaIncrement of %d not alloca multiple for block at %llx\n",
+ (unsigned long long) CurrBlock->GetFirstAddr());
+ }
continue; // Make the loop come around and process this block again, using
// the new incoming delta. Because we do this only when it decreases
// the stack size as seen by this block, no infinite loop is possible.
@@ -1582,6 +1586,9 @@ bool SMPFunction::AnalyzeStackPointerDeltas(void) {
WorkList.clear();
break;
}
+ if (TraceFlag) {
+ SMP_msg("TRACE: CurrentDelta is %d at %llx\n", CurrentDelta, (unsigned long long) InstAddr);
+ }
SMPitype FlowType = CurrInst->GetDataFlowType();
IncomingDelta += CurrentDelta;
if ((RETURN == FlowType) && (!CurrInst->IsCondTailCall()) && (!CurrInst->IsTailCall())) {
--
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