-//=-- SystemZ.h - Top-level interface for SystemZ representation -*- C++ -*-==//
+//==- SystemZ.h - Top-Level Interface for SystemZ representation -*- C++ -*-==//
//
// The LLVM Compiler Infrastructure
//
//
//===----------------------------------------------------------------------===//
-#ifndef LLVM_TARGET_SystemZ_H
-#define LLVM_TARGET_SystemZ_H
+#ifndef SYSTEMZ_H
+#define SYSTEMZ_H
#include "MCTargetDesc/SystemZMCTargetDesc.h"
-#include "llvm/Target/TargetMachine.h"
+#include "llvm/Support/CodeGen.h"
namespace llvm {
class SystemZTargetMachine;
class FunctionPass;
- class formatted_raw_ostream;
-
- namespace SystemZCC {
- // SystemZ specific condition code. These correspond to SYSTEMZ_*_COND in
- // SystemZInstrInfo.td. They must be kept in synch.
- enum CondCodes {
- O = 0,
- H = 1,
- NLE = 2,
- L = 3,
- NHE = 4,
- LH = 5,
- NE = 6,
- E = 7,
- NLH = 8,
- HE = 9,
- NL = 10,
- LE = 11,
- NH = 12,
- NO = 13,
- INVALID = -1
- };
+
+ namespace SystemZ {
+ // Condition-code mask values.
+ const unsigned CCMASK_0 = 1 << 3;
+ const unsigned CCMASK_1 = 1 << 2;
+ const unsigned CCMASK_2 = 1 << 1;
+ const unsigned CCMASK_3 = 1 << 0;
+ const unsigned CCMASK_ANY = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3;
+
+ // Condition-code mask assignments for integer and floating-point
+ // comparisons.
+ const unsigned CCMASK_CMP_EQ = CCMASK_0;
+ const unsigned CCMASK_CMP_LT = CCMASK_1;
+ const unsigned CCMASK_CMP_GT = CCMASK_2;
+ const unsigned CCMASK_CMP_NE = CCMASK_CMP_LT | CCMASK_CMP_GT;
+ const unsigned CCMASK_CMP_LE = CCMASK_CMP_EQ | CCMASK_CMP_LT;
+ const unsigned CCMASK_CMP_GE = CCMASK_CMP_EQ | CCMASK_CMP_GT;
+
+ // Condition-code mask assignments for floating-point comparisons only.
+ const unsigned CCMASK_CMP_UO = CCMASK_3;
+ const unsigned CCMASK_CMP_O = CCMASK_ANY ^ CCMASK_CMP_UO;
+
+ // All condition-code values produced by comparisons.
+ const unsigned CCMASK_ICMP = CCMASK_0 | CCMASK_1 | CCMASK_2;
+ const unsigned CCMASK_FCMP = CCMASK_0 | CCMASK_1 | CCMASK_2 | CCMASK_3;
+
+ // Condition-code mask assignments for CS.
+ const unsigned CCMASK_CS_EQ = CCMASK_0;
+ const unsigned CCMASK_CS_NE = CCMASK_1;
+ const unsigned CCMASK_CS = CCMASK_0 | CCMASK_1;
+
+ // Condition-code mask assignments for a completed SRST loop.
+ const unsigned CCMASK_SRST_FOUND = CCMASK_1;
+ const unsigned CCMASK_SRST_NOTFOUND = CCMASK_2;
+ const unsigned CCMASK_SRST = CCMASK_1 | CCMASK_2;
+
+ // Condition-code mask assignments for TEST UNDER MASK.
+ const unsigned CCMASK_TM_ALL_0 = CCMASK_0;
+ const unsigned CCMASK_TM_MIXED_MSB_0 = CCMASK_1;
+ const unsigned CCMASK_TM_MIXED_MSB_1 = CCMASK_2;
+ const unsigned CCMASK_TM_ALL_1 = CCMASK_3;
+ const unsigned CCMASK_TM_SOME_0 = CCMASK_TM_ALL_1 ^ CCMASK_ANY;
+ const unsigned CCMASK_TM_SOME_1 = CCMASK_TM_ALL_0 ^ CCMASK_ANY;
+ const unsigned CCMASK_TM_MSB_0 = CCMASK_0 | CCMASK_1;
+ const unsigned CCMASK_TM_MSB_1 = CCMASK_2 | CCMASK_3;
+ const unsigned CCMASK_TM = CCMASK_ANY;
+
+ // Mask assignments for PFD.
+ const unsigned PFD_READ = 1;
+ const unsigned PFD_WRITE = 2;
+
+ // Return true if Val fits an LLILL operand.
+ static inline bool isImmLL(uint64_t Val) {
+ return (Val & ~0x000000000000ffffULL) == 0;
+ }
+
+ // Return true if Val fits an LLILH operand.
+ static inline bool isImmLH(uint64_t Val) {
+ return (Val & ~0x00000000ffff0000ULL) == 0;
+ }
+
+ // Return true if Val fits an LLIHL operand.
+ static inline bool isImmHL(uint64_t Val) {
+ return (Val & ~0x00000ffff00000000ULL) == 0;
+ }
+
+ // Return true if Val fits an LLIHH operand.
+ static inline bool isImmHH(uint64_t Val) {
+ return (Val & ~0xffff000000000000ULL) == 0;
+ }
+
+ // Return true if Val fits an LLILF operand.
+ static inline bool isImmLF(uint64_t Val) {
+ return (Val & ~0x00000000ffffffffULL) == 0;
+ }
+
+ // Return true if Val fits an LLIHF operand.
+ static inline bool isImmHF(uint64_t Val) {
+ return (Val & ~0xffffffff00000000ULL) == 0;
+ }
}
FunctionPass *createSystemZISelDag(SystemZTargetMachine &TM,
- CodeGenOpt::Level OptLevel);
-
+ CodeGenOpt::Level OptLevel);
+ FunctionPass *createSystemZElimComparePass(SystemZTargetMachine &TM);
+ FunctionPass *createSystemZLongBranchPass(SystemZTargetMachine &TM);
} // end namespace llvm;
#endif