LLVM 20.0.0git
Enumerations | Functions
llvm::AArch64CC Namespace Reference

Enumerations

enum  CondCode {
  EQ = 0x0 , NE = 0x1 , HS = 0x2 , LO = 0x3 ,
  MI = 0x4 , PL = 0x5 , VS = 0x6 , VC = 0x7 ,
  HI = 0x8 , LS = 0x9 , GE = 0xa , LT = 0xb ,
  GT = 0xc , LE = 0xd , AL = 0xe , NV = 0xf ,
  Invalid , ANY_ACTIVE = NE , FIRST_ACTIVE = MI , LAST_ACTIVE = LO ,
  NONE_ACTIVE = EQ
}
 

Functions

static const chargetCondCodeName (CondCode Code)
 
static CondCode getInvertedCondCode (CondCode Code)
 
static CondCode getSwappedCondition (CondCode CC)
 getSwappedCondition - assume the flags are set by MI(a,b), return the condition code if we modify the instructions such that flags are set by MI(b,a).
 
static unsigned getNZCVToSatisfyCondCode (CondCode Code)
 Given a condition code, return NZCV flags that would satisfy that condition.
 

Enumeration Type Documentation

◆ CondCode

Enumerator
EQ 
NE 
HS 
LO 
MI 
PL 
VS 
VC 
HI 
LS 
GE 
LT 
GT 
LE 
AL 
NV 
Invalid 
ANY_ACTIVE 
FIRST_ACTIVE 
LAST_ACTIVE 
NONE_ACTIVE 

Definition at line 254 of file AArch64BaseInfo.h.

Function Documentation

◆ getCondCodeName()

static const char * llvm::AArch64CC::getCondCodeName ( CondCode  Code)
inlinestatic

◆ getInvertedCondCode()

static CondCode llvm::AArch64CC::getInvertedCondCode ( CondCode  Code)
inlinestatic

◆ getNZCVToSatisfyCondCode()

static unsigned llvm::AArch64CC::getNZCVToSatisfyCondCode ( CondCode  Code)
inlinestatic

Given a condition code, return NZCV flags that would satisfy that condition.

The flag bits are in the format expected by the ccmp instructions. Note that many different flag settings can satisfy a given condition code, this function just returns one of them.

Definition at line 343 of file AArch64BaseInfo.h.

References llvm::CallingConv::C, EQ, GE, GT, HI, HS, LE, llvm_unreachable, LO, LS, LT, MI, N, NE, PL, VC, and VS.

Referenced by emitConditionalComparison(), and performANDORCSELCombine().

◆ getSwappedCondition()

static CondCode llvm::AArch64CC::getSwappedCondition ( CondCode  CC)
inlinestatic

getSwappedCondition - assume the flags are set by MI(a,b), return the condition code if we modify the instructions such that flags are set by MI(b,a).

Definition at line 312 of file AArch64BaseInfo.h.

References AL, CC, EQ, GE, GT, HI, HS, LE, LO, LS, LT, and NE.