Allow target to customize directive used to switch to arbitrary section in SwitchSection,
add generic constant pool emitter
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@24464 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter.cpp
index 86c3f4b..0e9802d 100644
--- a/lib/CodeGen/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter.cpp
@@ -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())