Changes in directory llvm/lib/CodeGen:
AsmPrinter.cpp updated: 1.99 -> 1.100
---
Log message:
Add support for ${:comment}, which expands to the current target's comment
character, and ${:uid} which expands to a unique ID for the MachineInstr.
More can be added if/when they are needed.
---
Diffs of the changes: (+24 -0)
AsmPrinter.cpp | 24 ++++++++++++++++++++++++
1 files changed, 24 insertions(+)
Index: llvm/lib/CodeGen/AsmPrinter.cpp
diff -u llvm/lib/CodeGen/AsmPrinter.cpp:1.99
llvm/lib/CodeGen/AsmPrinter.cpp:1.100
--- llvm/lib/CodeGen/AsmPrinter.cpp:1.99 Mon Sep 25 22:38:18 2006
+++ llvm/lib/CodeGen/AsmPrinter.cpp Tue Sep 26 18:59:50 2006
@@ -619,6 +619,30 @@
abort();
}
+/// PrintSpecial - Print information related to the specified machine instr
+/// that is independent of the operand, and may be independent of the instr
+/// itself. This can be useful for portably encoding the comment character
+/// or other bits of target-specific knowledge into the asmstrings. The
+/// syntax used is ${:comment}. Targets can override this to add support
+/// for their own strange codes.
+void AsmPrinter::PrintSpecial(const MachineInstr *MI, const char *Code) {
+ if (!strcmp(Code, "comment")) {
+ O << TAI->getCommentString();
+ } else if (!strcmp(Code, "uid")) {
+ // Assign a unique ID to this machine instruction.
+ static const MachineInstr *LastMI = 0;
+ static unsigned Counter = 0U-1;
+ // If this is a new machine instruction, bump the counter.
+ if (LastMI != MI) { ++Counter; LastMI = MI; }
+ O << Counter;
+ } else {
+ std::cerr << "Unknown special formatter '" << Code
+ << "' for machine instr: " << *MI;
+ exit(1);
+ }
+}
+
+
/// printInlineAsm - This method formats and prints the specified machine
/// instruction that is an inline asm.
void AsmPrinter::printInlineAsm(const MachineInstr *MI) const {
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