It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/Trace.cpp b/lib/Analysis/Trace.cpp
new file mode 100644
index 0000000..3e3b1b9
--- /dev/null
+++ b/lib/Analysis/Trace.cpp
@@ -0,0 +1,50 @@
+//===- Trace.cpp - Implementation of Trace class --------------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by the LLVM research group and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This class represents a single trace of LLVM basic blocks. A trace is a
+// single entry, multiple exit, region of code that is often hot. Trace-based
+// optimizations treat traces almost like they are a large, strange, basic
+// block: because the trace path is assumed to be hot, optimizations for the
+// fall-through path are made at the expense of the non-fall-through paths.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/Analysis/Trace.h"
+#include "llvm/Function.h"
+#include "llvm/Assembly/Writer.h"
+#include "llvm/Support/Streams.h"
+using namespace llvm;
+
+Function *Trace::getFunction() const {
+ return getEntryBasicBlock()->getParent();
+}
+
+Module *Trace::getModule() const {
+ return getFunction()->getParent();
+}
+
+/// print - Write trace to output stream.
+///
+void Trace::print(std::ostream &O) const {
+ Function *F = getFunction ();
+ O << "; Trace from function " << F->getName() << ", blocks:\n";
+ for (const_iterator i = begin(), e = end(); i != e; ++i) {
+ O << "; ";
+ WriteAsOperand(O, *i, true, getModule());
+ O << "\n";
+ }
+ O << "; Trace parent function: \n" << *F;
+}
+
+/// dump - Debugger convenience method; writes trace to standard error
+/// output stream.
+///
+void Trace::dump() const {
+ print(cerr);
+}