remove a densemap from TargetAsmInfo that was uniquing the targetflags strings,
just use a smallstring instead.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77144 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ELFTargetAsmInfo.cpp b/lib/Target/ELFTargetAsmInfo.cpp
index 258542c..b64c0b6 100644
--- a/lib/Target/ELFTargetAsmInfo.cpp
+++ b/lib/Target/ELFTargetAsmInfo.cpp
@@ -168,38 +168,44 @@
return getReadOnlySection();
}
-std::string ELFTargetAsmInfo::printSectionFlags(unsigned flags) const {
- std::string Flags = ",\"";
+void ELFTargetAsmInfo::getSectionFlags(unsigned Flags,
+ SmallVectorImpl<char> &Str) const {
+ Str.push_back(',');
+ Str.push_back('"');
+
+ if (!(Flags & SectionFlags::Debug))
+ Str.push_back('a');
+ if (Flags & SectionFlags::Code)
+ Str.push_back('x');
+ if (Flags & SectionFlags::Writable)
+ Str.push_back('w');
+ if (Flags & SectionFlags::Mergeable)
+ Str.push_back('M');
+ if (Flags & SectionFlags::Strings)
+ Str.push_back('S');
+ if (Flags & SectionFlags::TLS)
+ Str.push_back('T');
- if (!(flags & SectionFlags::Debug))
- Flags += 'a';
- if (flags & SectionFlags::Code)
- Flags += 'x';
- if (flags & SectionFlags::Writable)
- Flags += 'w';
- if (flags & SectionFlags::Mergeable)
- Flags += 'M';
- if (flags & SectionFlags::Strings)
- Flags += 'S';
- if (flags & SectionFlags::TLS)
- Flags += 'T';
-
- Flags += "\",";
+ Str.push_back('"');
+ Str.push_back(',');
// If comment string is '@', e.g. as on ARM - use '%' instead
if (strcmp(CommentString, "@") == 0)
- Flags += '%';
+ Str.push_back('%');
else
- Flags += '@';
+ Str.push_back('@');
- // FIXME: There can be exceptions here
- if (flags & SectionFlags::BSS)
- Flags += "nobits";
+ const char *KindStr;
+ if (Flags & SectionFlags::BSS)
+ KindStr = "nobits";
else
- Flags += "progbits";
+ KindStr = "progbits";
+
+ Str.append(KindStr, KindStr+strlen(KindStr));
- if (unsigned entitySize = SectionFlags::getEntitySize(flags))
- Flags += "," + utostr(entitySize);
-
- return Flags;
+ if (unsigned entitySize = SectionFlags::getEntitySize(Flags)) {
+ Str.push_back(',');
+ std::string Size = utostr(entitySize);
+ Str.append(Size.begin(), Size.end());
+ }
}