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Removed a dreadful hack to get at the name of the 

intrinsic being used.  Thanks to Chris Lattner for
pointing out the proper way to do it.

llvm-svn: 115006
This commit is contained in:
Sean Callanan 2010-09-28 23:55:00 +00:00
parent 0097dd0d5a
commit 58c6273b84
1 changed files with 19 additions and 23 deletions
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42
lldb/source/Expression/IRForTarget.cpp
View File

@ -12,6 +12,7 @@
#include "llvm/Support/raw_ostream.h"
#include "llvm/InstrTypes.h"
#include "llvm/Instructions.h"
#include "llvm/Intrinsics.h"
#include "llvm/Module.h"
#include "llvm/Target/TargetData.h"
#include "llvm/ValueSymbolTable.h"
@ -633,34 +634,29 @@ IRForTarget::MaybeHandleCall(Module &M,
}
}
std::string str = fun->getName().str();
std::string str;
if (str.find("llvm.") == 0)
if (fun->isIntrinsic())
{
// Probably a LLVM built-in. Let's try again, but looking up the original.
//
// +- builtin_name_offset [in this case, 5]
// |
// |====| builtin_name_length [in this case, 6]
// 0 |
// | | +- builtin_name_end [in this case, 11]
// V V V
// llvm.______.i32.u8
// 012345678901234567
// 0 1
Intrinsic::ID intrinsic_id = (Intrinsic::ID)fun->getIntrinsicID();
size_t builtin_name_offset = sizeof("llvm.") - 1;
size_t builtin_name_end = str.find('.', builtin_name_offset);
if (builtin_name_end == str.npos)
builtin_name_end = str.size() + 1;
size_t builtin_name_length = builtin_name_end - builtin_name_offset;
str = str.substr(builtin_name_offset, builtin_name_length);
switch (intrinsic_id)
{
default:
if (log)
log->Printf("Unresolved intrinsic %s", Intrinsic::getName(intrinsic_id).c_str());
return false;
case Intrinsic::memcpy:
str = "memcpy";
break;
}
if (log)
log->Printf("Extracted builtin function name %s", str.c_str());
log->Printf("Resolved intrinsic name %s", str.c_str());
}
else
{
str = fun->getName().str();
}
clang::NamedDecl *fun_decl = DeclForGlobalValue(M, fun);