commit 7206a52522bbf7a3d8ddee9d19f9562ef06434a9
author Saleem Abdulrasool <compnerd@compnerd.org> Sun Jun 29 01:52:01 2014 +0000
committer Saleem Abdulrasool <compnerd@compnerd.org> Sun Jun 29 01:52:01 2014 +0000
tree 8769e1b2e78f21650e0b5f66a99d997a5c9eeb1d
parent 66e588be09779fa293ffc57b1f14c278221b8c19

MC: rename EmitWin64EH routines

Rename the routines to reflect the reality that they are more related to call
frame information than to Win64 EH. Although EH is implemented in an intertwined
manner by augmenting with an exception handler and an associated parameter, the
majority of these routines emit information required to unwind the frames. This
also helps identify that these routines are generic for most windows platforms
(they apply equally to nearly all architectures except x86) although the
encoding of the information is architecture dependent.

Unwinding data is emitted via EmitWinCFI* and exception handling information via
EmitWinEH*.

llvm-svn: 211994

llvm/lib/MC/MCStreamer.cpp

diff --git a/llvm/lib/MC/MCStreamer.cpp b/llvm/lib/MC/MCStreamer.cpp
index ab7e4c7..eca1ed7 100644
--- a/llvm/lib/MC/MCStreamer.cpp
+++ b/llvm/lib/MC/MCStreamer.cpp
@@ -425,7 +425,7 @@
     report_fatal_error("No open Win64 EH frame function!");
 }
 
-void MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
+void MCStreamer::EmitWinCFIStartProc(const MCSymbol *Symbol) {
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
   if (CurFrame && !CurFrame->End)
     report_fatal_error("Starting a function before ending the previous one!");
@@ -436,7 +436,7 @@
   setCurrentW64UnwindInfo(Frame);
 }
 
-void MCStreamer::EmitWin64EHEndProc() {
+void MCStreamer::EmitWinCFIEndProc() {
   EnsureValidW64UnwindInfo();
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
   if (CurFrame->ChainedParent)
@@ -445,7 +445,7 @@
   EmitLabel(CurFrame->End);
 }
 
-void MCStreamer::EmitWin64EHStartChained() {
+void MCStreamer::EmitWinCFIStartChained() {
   EnsureValidW64UnwindInfo();
   MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
@@ -456,7 +456,7 @@
   setCurrentW64UnwindInfo(Frame);
 }
 
-void MCStreamer::EmitWin64EHEndChained() {
+void MCStreamer::EmitWinCFIEndChained() {
   EnsureValidW64UnwindInfo();
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
   if (!CurFrame->ChainedParent)
@@ -466,8 +466,8 @@
   CurrentW64UnwindInfo = CurFrame->ChainedParent;
 }
 
-void MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
-                                    bool Except) {
+void MCStreamer::EmitWinEHHandler(const MCSymbol *Sym, bool Unwind,
+                                  bool Except) {
   EnsureValidW64UnwindInfo();
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
   if (CurFrame->ChainedParent)
@@ -481,14 +481,14 @@
     CurFrame->HandlesExceptions = true;
 }
 
-void MCStreamer::EmitWin64EHHandlerData() {
+void MCStreamer::EmitWinEHHandlerData() {
   EnsureValidW64UnwindInfo();
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
   if (CurFrame->ChainedParent)
     report_fatal_error("Chained unwind areas can't have handlers!");
 }
 
-void MCStreamer::EmitWin64EHPushReg(unsigned Register) {
+void MCStreamer::EmitWinCFIPushReg(unsigned Register) {
   EnsureValidW64UnwindInfo();
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
   MCSymbol *Label = getContext().CreateTempSymbol();
@@ -497,7 +497,7 @@
   CurFrame->Instructions.push_back(Inst);
 }
 
-void MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
+void MCStreamer::EmitWinCFISetFrame(unsigned Register, unsigned Offset) {
   EnsureValidW64UnwindInfo();
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
   if (CurFrame->LastFrameInst >= 0)
@@ -513,7 +513,7 @@
   CurFrame->Instructions.push_back(Inst);
 }
 
-void MCStreamer::EmitWin64EHAllocStack(unsigned Size) {
+void MCStreamer::EmitWinCFIAllocStack(unsigned Size) {
   EnsureValidW64UnwindInfo();
   if (Size & 7)
     report_fatal_error("Misaligned stack allocation!");
@@ -524,7 +524,7 @@
   CurFrame->Instructions.push_back(Inst);
 }
 
-void MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
+void MCStreamer::EmitWinCFISaveReg(unsigned Register, unsigned Offset) {
   EnsureValidW64UnwindInfo();
   if (Offset & 7)
     report_fatal_error("Misaligned saved register offset!");
@@ -537,7 +537,7 @@
   CurFrame->Instructions.push_back(Inst);
 }
 
-void MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
+void MCStreamer::EmitWinCFISaveXMM(unsigned Register, unsigned Offset) {
   EnsureValidW64UnwindInfo();
   if (Offset & 0x0F)
     report_fatal_error("Misaligned saved vector register offset!");
@@ -550,7 +550,7 @@
   CurFrame->Instructions.push_back(Inst);
 }
 
-void MCStreamer::EmitWin64EHPushFrame(bool Code) {
+void MCStreamer::EmitWinCFIPushFrame(bool Code) {
   EnsureValidW64UnwindInfo();
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
   if (CurFrame->Instructions.size() > 0)
@@ -561,7 +561,7 @@
   CurFrame->Instructions.push_back(Inst);
 }
 
-void MCStreamer::EmitWin64EHEndProlog() {
+void MCStreamer::EmitWinCFIEndProlog() {
   EnsureValidW64UnwindInfo();
   MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
   CurFrame->PrologEnd = getContext().CreateTempSymbol();