Author: evancheng
Date: Thu Jan 10 01:19:43 2008
New Revision: 45828
URL: http://llvm.org/viewvc/llvm-project?rev=45828&view=rev
Log:
Clearify the meaning of immutable StackObject.
Modified:
llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h
Modified: llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h
URL:
http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h?rev=45828&r1=45827&r2=45828&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h (original)
+++ llvm/trunk/include/llvm/CodeGen/MachineFrameInfo.h Thu Jan 10 01:19:43 2008
@@ -86,9 +86,9 @@
// the function. This field has no meaning for a variable sized element.
int64_t SPOffset;
- // isImmutable - If true, the value of the stack object does not change
- // in this function. By default, fixed objects are immutable unless marked
- // otherwise.
+ // isImmutable - If true, the value of the stack object is set before
+ // entering the function and is not modified inside the function. By
+ // default, fixed objects are immutable unless marked otherwise.
bool isImmutable;
StackObject(uint64_t Sz, unsigned Al, int64_t SP, bool IM = false)
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