MCAsmParser: handle space properly for .ifc/.ifnc

If the strings are not quoted, the first string stops at the first comma, and
the second string stops at the end of the line.  Strings which contain
whitespace should be quoted.  Unquoted space is to be discarded.

llvm-svn: 201985

diff --git a/llvm/lib/MC/MCParser/AsmParser.cpp b/llvm/lib/MC/MCParser/AsmParser.cpp
index d77a0fd..fb854c9 100644 (file)
--- a/llvm/lib/MC/MCParser/AsmParser.cpp
+++ b/llvm/lib/MC/MCParser/AsmParser.cpp
@@ -3813,6 +3813,7 @@ bool AsmParser::parseDirectiveIfb(SMLoc DirectiveLoc, bool ExpectBlank) {
 
 /// parseDirectiveIfc
 /// ::= .ifc string1, string2
+/// ::= .ifnc string1, string2
 bool AsmParser::parseDirectiveIfc(SMLoc DirectiveLoc, bool ExpectEqual) {
   TheCondStack.push_back(TheCondState);
   TheCondState.TheCond = AsmCond::IfCond;
@@ -3834,7 +3835,7 @@ bool AsmParser::parseDirectiveIfc(SMLoc DirectiveLoc, bool ExpectEqual) {
 
     Lex();
 
-    TheCondState.CondMet = ExpectEqual == (Str1 == Str2);
+    TheCondState.CondMet = ExpectEqual == (Str1.trim() == Str2.trim());
     TheCondState.Ignore = !TheCondState.CondMet;
   }
 

diff --git a/llvm/test/MC/AsmParser/ifc.s b/llvm/test/MC/AsmParser/ifc.s
index 20e55c0..24944a2 100644 (file)
--- a/llvm/test/MC/AsmParser/ifc.s
+++ b/llvm/test/MC/AsmParser/ifc.s
@@ -63,3 +63,8 @@
 .else
        .byte 0
 .endif
+
+# CHECK-NOT: .byte 0
+# CHECK: .byte 1
+.ifnc equal, equal ; .byte 0 ; .else ; .byte 1 ; .endif
+