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Add support for the new "target data" information in .ll files. This provides

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a better encoding of the targets data layout, rather than trying to guess it
from the endianness and pointersize like before.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@31030 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson 2006-10-18 02:21:12 +00:00
parent 9935dd9198
commit cf7ff2b4c8
4 changed files with 18 additions and 0 deletions
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8
include/llvm/Module.h
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@ -116,6 +116,11 @@ public:
/// @returns the module identifier as a string
const std::string &getModuleIdentifier() const { return ModuleID; }
/// Get the data layout string for the module's target platform. This encodes
/// the type sizes and alignments expected by this module.
/// @returns the data layout as a string
std::string getDataLayout() const { return DataLayout; }
/// Get the target triple which is a string describing the target host.
/// @returns a string containing the target triple.
const std::string &getTargetTriple() const { return TargetTriple; }
@ -139,6 +144,9 @@ public:
/// Set the module identifier.
void setModuleIdentifier(const std::string &ID) { ModuleID = ID; }
/// Set the data layout
void setDataLayout(std::string DL) { DataLayout = DL; }
/// Set the target triple.
void setTargetTriple(const std::string &T) { TargetTriple = T; }

1
lib/AsmParser/Lexer.l
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@ -210,6 +210,7 @@ triple { return TRIPLE; }
deplibs { return DEPLIBS; }
endian { return ENDIAN; }
pointersize { return POINTERSIZE; }
data { return DATA; }
little { return LITTLE; }
big { return BIG; }
volatile { return VOLATILE; }

6
lib/AsmParser/llvmAsmParser.y
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@ -1068,6 +1068,7 @@ Module *llvm::RunVMAsmParser(const char * AsmString, Module * M) {
%token DEPLIBS CALL TAIL ASM_TOK MODULE SIDEEFFECT
%token CC_TOK CCC_TOK CSRETCC_TOK FASTCC_TOK COLDCC_TOK
%token X86_STDCALLCC_TOK X86_FASTCALLCC_TOK
%token DATA
%type <UIntVal> OptCallingConv
// Basic Block Terminating Operators
@ -1873,6 +1874,11 @@ TargetDefinition : ENDIAN '=' BigOrLittle {
free($3);
CHECK_FOR_ERROR
};
| DATA '=' STRINGCONSTANT {
CurModule.CurrentModule->setDataLayout($3);
free($3);
CHECK_FOR_ERROR
};
LibrariesDefinition : '[' LibList ']';

3
lib/VMCore/AsmWriter.cpp
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@ -781,6 +781,9 @@ void AssemblyWriter::printModule(const Module *M) {
M->getModuleIdentifier().find('\n') == std::string::npos)
Out << "; ModuleID = '" << M->getModuleIdentifier() << "'\n";
if (!M->getDataLayout().empty())
Out << "target data = \"" << M->getDataLayout() << "\"\n";
switch (M->getEndianness()) {
case Module::LittleEndian: Out << "target endian = little\n"; break;
case Module::BigEndian: Out << "target endian = big\n"; break;