LLVM: lib/IR/FPEnv.cpp Source File (original) (raw)
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20#include
21
22using namespace llvm;
23
24std::optional
37
38std::optional
40 std::optional RoundingStr;
41 switch (UseRounding) {
43 RoundingStr = "round.dynamic";
44 break;
46 RoundingStr = "round.tonearest";
47 break;
49 RoundingStr = "round.tonearestaway";
50 break;
52 RoundingStr = "round.downward";
53 break;
55 RoundingStr = "round.upward";
56 break;
58 RoundingStr = "round.towardzero";
59 break;
60 default:
61 break;
62 }
63 return RoundingStr;
64}
65
66std::optionalfp::ExceptionBehavior
74
75std::optional
77 std::optional ExceptStr;
78 switch (UseExcept) {
80 ExceptStr = "fpexcept.strict";
81 break;
83 ExceptStr = "fpexcept.ignore";
84 break;
86 ExceptStr = "fpexcept.maytrap";
87 break;
88 }
89 return ExceptStr;
90}
91
94 switch (Instr.getOpcode()) {
95 case Instruction::FCmp:
96
97
98 IID = Intrinsic::experimental_constrained_fcmp;
99 break;
100
101
102#define INSTRUCTION(NAME, NARG, ROUND_MODE, INTRINSIC) \
103 case Instruction::NAME: \
104 IID = Intrinsic::INTRINSIC; \
105 break;
106#define FUNCTION(NAME, NARG, ROUND_MODE, INTRINSIC)
107#define CMP_INSTRUCTION(NAME, NARG, ROUND_MODE, INTRINSIC, DAGN)
108#include "llvm/IR/ConstrainedOps.def"
109
110
111 case Instruction::Call:
113 switch (IntrinCall->getIntrinsicID()) {
114#define FUNCTION(NAME, NARG, ROUND_MODE, INTRINSIC) \
115 case Intrinsic::NAME: \
116 IID = Intrinsic::INTRINSIC; \
117 break;
118#define INSTRUCTION(NAME, NARG, ROUND_MODE, INTRINSIC)
119#define CMP_INSTRUCTION(NAME, NARG, ROUND_MODE, INTRINSIC, DAGN)
120#include "llvm/IR/ConstrainedOps.def"
121 default:
122 break;
123 }
124 }
125 break;
126 default:
127 break;
128 }
129
130 return IID;
131}
This file contains the declarations of entities that describe floating point environment and related ...
This file implements the StringSwitch template, which mimics a switch() statement whose cases are str...
StringRef - Represent a constant reference to a string, i.e.
A switch()-like statement whose cases are string literals.
StringSwitch & Case(StringLiteral S, T Value)
ExceptionBehavior
Exception behavior used for floating point operations.
@ ebStrict
This corresponds to "fpexcept.strict".
@ ebMayTrap
This corresponds to "fpexcept.maytrap".
@ ebIgnore
This corresponds to "fpexcept.ignore".
This is an optimization pass for GlobalISel generic memory operations.
decltype(auto) dyn_cast(const From &Val)
dyn_cast - Return the argument parameter cast to the specified type.
LLVM_ABI std::optional< StringRef > convertRoundingModeToStr(RoundingMode)
For any RoundingMode enumerator, returns a string valid as input in constrained intrinsic rounding mo...
Definition FPEnv.cpp:39
LLVM_ABI std::optional< StringRef > convertExceptionBehaviorToStr(fp::ExceptionBehavior)
For any ExceptionBehavior enumerator, returns a string valid as input in constrained intrinsic except...
Definition FPEnv.cpp:76
LLVM_ABI Intrinsic::ID getConstrainedIntrinsicID(const Instruction &Instr)
Returns constrained intrinsic id to represent the given instruction in strictfp function.
Definition FPEnv.cpp:92
LLVM_ABI std::optional< fp::ExceptionBehavior > convertStrToExceptionBehavior(StringRef)
Returns a valid ExceptionBehavior enumerator when given a string valid as input in constrained intrin...
Definition FPEnv.cpp:67
RoundingMode
Rounding mode.
@ TowardZero
roundTowardZero.
@ NearestTiesToEven
roundTiesToEven.
@ Dynamic
Denotes mode unknown at compile time.
@ TowardPositive
roundTowardPositive.
@ NearestTiesToAway
roundTiesToAway.
@ TowardNegative
roundTowardNegative.
LLVM_ABI std::optional< RoundingMode > convertStrToRoundingMode(StringRef)
Returns a valid RoundingMode enumerator when given a string that is valid as input in constrained int...
Definition FPEnv.cpp:25