[llvm-commits] CVS: llvm/lib/CodeGen/AsmPrinter.cpp

[Chris Lattner]

Changes in directory llvm/lib/CodeGen:

AsmPrinter.cpp updated: 1.28 -> 1.29
---
Log message:

Allow target to customize directive used to switch to arbitrary section in SwitchSection,
add generic constant pool emitter


---
Diffs of the changes:  (+28 -1)

 AsmPrinter.cpp |   29 ++++++++++++++++++++++++++++-
 1 files changed, 28 insertions(+), 1 deletion(-)


Index: llvm/lib/CodeGen/AsmPrinter.cpp
diff -u llvm/lib/CodeGen/AsmPrinter.cpp:1.28 llvm/lib/CodeGen/AsmPrinter.cpp:1.29
--- llvm/lib/CodeGen/AsmPrinter.cpp:1.28	Mon Nov 21 02:13:27 2005
+++ llvm/lib/CodeGen/AsmPrinter.cpp	Mon Nov 21 02:25:09 2005
@@ -14,6 +14,7 @@
 #include "llvm/CodeGen/AsmPrinter.h"
 #include "llvm/Constants.h"
 #include "llvm/Module.h"
+#include "llvm/CodeGen/MachineConstantPool.h"
 #include "llvm/Support/Mangler.h"
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Target/TargetMachine.h"
@@ -26,7 +27,7 @@
   std::string NS;
   
   if (GV && GV->hasSection())
-    NS = ".section " + GV->getSection();
+    NS = SwitchToSectionDirective + GV->getSection();
   else
     NS = NewSection;
   
@@ -54,6 +55,32 @@
   IncrementFunctionNumber();
 }
 
+/// EmitConstantPool - Print to the current output stream assembly
+/// representations of the constants in the constant pool MCP. This is
+/// used to print out constants which have been "spilled to memory" by
+/// the code generator.
+///
+void AsmPrinter::EmitConstantPool(MachineConstantPool *MCP) {
+  const std::vector<Constant*> &CP = MCP->getConstants();
+  if (CP.empty()) return;
+  const TargetData &TD = TM.getTargetData();
+  
+  SwitchSection(ConstantPoolSection, 0);
+  for (unsigned i = 0, e = CP.size(); i != e; ++i) {
+    // FIXME: force doubles to be naturally aligned.  We should handle this
+    // more correctly in the future.
+    unsigned Alignment = TD.getTypeAlignmentShift(CP[i]->getType());
+    if (CP[i]->getType() == Type::DoubleTy && Alignment < 3) Alignment = 3;
+    
+    EmitAlignment(Alignment);
+    O << PrivateGlobalPrefix << "CPI" << getFunctionNumber() << '_' << i
+      << ":\t\t\t\t\t" << CommentString << *CP[i] << '\n';
+    EmitGlobalConstant(CP[i]);
+  }
+}
+
+
+
 // EmitAlignment - Emit an alignment directive to the specified power of two.
 void AsmPrinter::EmitAlignment(unsigned NumBits, const GlobalValue *GV) const {
   if (GV && GV->getAlignment())