Add support for assemblers that don't support periods in a name

llvm-svn: 102594
This commit is contained in:
Mon P Wang 2010-04-29 04:00:56 +00:00
parent d65a1e782b
commit b0a0a26df1
3 changed files with 17 additions and 6 deletions

View File

@ -97,7 +97,11 @@ namespace llvm {
/// AllowNameToStartWithDigit - This is true if the assembler allows symbol
/// names to start with a digit (e.g., "0x0021"). This defaults to false.
bool AllowNameToStartWithDigit;
/// AllowPeriodsInName - This is true if the assembler allows periods in
/// symbol names. This defaults to true.
bool AllowPeriodsInName;
//===--- Data Emission Directives -------------------------------------===//
/// ZeroDirective - this should be set to the directive used to get some
@ -341,6 +345,9 @@ namespace llvm {
bool doesAllowNameToStartWithDigit() const {
return AllowNameToStartWithDigit;
}
bool doesAllowPeriodsInName() const {
return AllowPeriodsInName;
}
const char *getZeroDirective() const {
return ZeroDirective;
}

View File

@ -35,6 +35,7 @@ MCAsmInfo::MCAsmInfo() {
AssemblerDialect = 0;
AllowQuotesInName = false;
AllowNameToStartWithDigit = false;
AllowPeriodsInName = true;
ZeroDirective = "\t.zero\t";
AsciiDirective = "\t.ascii\t";
AscizDirective = "\t.asciz\t";

View File

@ -22,11 +22,12 @@
#include "llvm/ADT/Twine.h"
using namespace llvm;
static bool isAcceptableChar(char C) {
static bool isAcceptableChar(char C, bool AllowPeriod) {
if ((C < 'a' || C > 'z') &&
(C < 'A' || C > 'Z') &&
(C < '0' || C > '9') &&
C != '_' && C != '$' && C != '.' && C != '@')
C != '_' && C != '$' && C != '@' &&
!(AllowPeriod && C == '.'))
return false;
return true;
}
@ -54,8 +55,9 @@ static bool NameNeedsEscaping(StringRef Str, const MCAsmInfo &MAI) {
// If any of the characters in the string is an unacceptable character, force
// quotes.
bool AllowPeriod = MAI.doesAllowPeriodsInName();
for (unsigned i = 0, e = Str.size(); i != e; ++i)
if (!isAcceptableChar(Str[i]))
if (!isAcceptableChar(Str[i], AllowPeriod))
return true;
return false;
}
@ -70,9 +72,10 @@ static void appendMangledName(SmallVectorImpl<char> &OutName, StringRef Str,
MangleLetter(OutName, Str[0]);
Str = Str.substr(1);
}
bool AllowPeriod = MAI.doesAllowPeriodsInName();
for (unsigned i = 0, e = Str.size(); i != e; ++i) {
if (!isAcceptableChar(Str[i]))
if (!isAcceptableChar(Str[i], AllowPeriod))
MangleLetter(OutName, Str[i]);
else
OutName.push_back(Str[i]);