mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-28 19:31:58 +00:00
40f5fbcc5c
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@131806 91177308-0d34-0410-b5e6-96231b3b80d8
80 lines
2.2 KiB
C++
80 lines
2.2 KiB
C++
//===-- llvm/Target/TargetLibraryInfo.h - Library information ---*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_TARGET_TARGETLIBRARYINFO_H
|
|
#define LLVM_TARGET_TARGETLIBRARYINFO_H
|
|
|
|
#include "llvm/Pass.h"
|
|
|
|
namespace llvm {
|
|
class Triple;
|
|
|
|
namespace LibFunc {
|
|
enum Func {
|
|
/// void *memset(void *b, int c, size_t len);
|
|
memset,
|
|
|
|
// void *memcpy(void *s1, const void *s2, size_t n);
|
|
memcpy,
|
|
|
|
// void *memmove(void *s1, const void *s2, size_t n);
|
|
memmove,
|
|
|
|
/// void memset_pattern16(void *b, const void *pattern16, size_t len);
|
|
memset_pattern16,
|
|
|
|
/// int iprintf(const char *format, ...);
|
|
iprintf,
|
|
|
|
/// int siprintf(char *str, const char *format, ...);
|
|
siprintf,
|
|
|
|
/// int fiprintf(FILE *stream, const char *format, ...);
|
|
fiprintf,
|
|
|
|
NumLibFuncs
|
|
};
|
|
}
|
|
|
|
/// TargetLibraryInfo - This immutable pass captures information about what
|
|
/// library functions are available for the current target, and allows a
|
|
/// frontend to disable optimizations through -fno-builtin etc.
|
|
class TargetLibraryInfo : public ImmutablePass {
|
|
unsigned char AvailableArray[(LibFunc::NumLibFuncs+7)/8];
|
|
public:
|
|
static char ID;
|
|
TargetLibraryInfo();
|
|
TargetLibraryInfo(const Triple &T);
|
|
explicit TargetLibraryInfo(const TargetLibraryInfo &TLI);
|
|
|
|
/// has - This function is used by optimizations that want to match on or form
|
|
/// a given library function.
|
|
bool has(LibFunc::Func F) const {
|
|
return (AvailableArray[F/8] & (1 << (F&7))) != 0;
|
|
}
|
|
|
|
/// setUnavailable - this can be used by whatever sets up TargetLibraryInfo to
|
|
/// ban use of specific library functions.
|
|
void setUnavailable(LibFunc::Func F) {
|
|
AvailableArray[F/8] &= ~(1 << (F&7));
|
|
}
|
|
|
|
void setAvailable(LibFunc::Func F) {
|
|
AvailableArray[F/8] |= 1 << (F&7);
|
|
}
|
|
|
|
/// disableAllFunctions - This disables all builtins, which is used for
|
|
/// options like -fno-builtin.
|
|
void disableAllFunctions();
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|