Add a form of EOL which emits the text version of a DWARF format encoding. This
doesn't handle all values of the formatting. Those can be added as needed.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80427 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index 23f62db..f06db8e 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -604,6 +604,56 @@
O << '\n';
}
+static const char *DecodeDWARFEncoding(unsigned Encoding) {
+ switch (Encoding) {
+ case dwarf::DW_EH_PE_absptr:
+ return "absptr";
+ case dwarf::DW_EH_PE_omit:
+ return "omit";
+ case dwarf::DW_EH_PE_pcrel:
+ return "pcrel";
+ case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata4:
+ return "pcrel udata4";
+ case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata4:
+ return "pcrel sdata4";
+ case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_udata8:
+ return "pcrel udata8";
+ case dwarf::DW_EH_PE_pcrel | dwarf::DW_EH_PE_sdata8:
+ return "pcrel sdata8";
+ case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_udata4:
+ return "indirect pcrel udata4";
+ case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_sdata4:
+ return "indirect pcrel sdata4";
+ case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_udata8:
+ return "indirect pcrel udata8";
+ case dwarf::DW_EH_PE_indirect | dwarf::DW_EH_PE_pcrel |dwarf::DW_EH_PE_sdata8:
+ return "indirect pcrel sdata8";
+ }
+
+ return 0;
+}
+
+void AsmPrinter::EOL(const std::string &Comment, unsigned Encoding) const {
+ if (VerboseAsm && !Comment.empty()) {
+ EOL(Comment.c_str(), Encoding);
+ return;
+ }
+ O << '\n';
+}
+
+void AsmPrinter::EOL(const char *Comment, unsigned Encoding) const {
+ if (VerboseAsm && *Comment) {
+ O.PadToColumn(MAI->getCommentColumn());
+ O << MAI->getCommentString()
+ << ' '
+ << Comment;
+
+ if (const char *EncStr = DecodeDWARFEncoding(Encoding))
+ O << " (" << EncStr << ')';
+ }
+ O << '\n';
+}
+
/// EmitULEB128Bytes - Emit an assembler byte data directive to compose an
/// unsigned leb128 value.
void AsmPrinter::EmitULEB128Bytes(unsigned Value) const {