MCParser/Debug info: Accept line number 0 as a legitimate value, since
CFE produces it to indicate artificial locations.
c.f.: DWARF standard, Table 6.2:
line -- An unsigned integer indicating a source line number. Lines are numbered beginning at 1. The compiler may emit the value 0 in cases where an instruction cannot be attributed to any source line.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@191471 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index e36850b..9854b07 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -2634,8 +2634,8 @@
int64_t LineNumber = 0;
if (getLexer().is(AsmToken::Integer)) {
LineNumber = getTok().getIntVal();
- if (LineNumber < 1)
- return TokError("line number less than one in '.loc' directive");
+ if (LineNumber < 0)
+ return TokError("line number less than zero in '.loc' directive");
Lex();
}