namespace llvm {
class StringRef;
-namespace Intrinsic {
-typedef unsigned ID;
-}
-
-class Instruction;
-
namespace fp {
/// Exception behavior used for floating point operations.
return EB == fp::ebIgnore && RM == RoundingMode::NearestTiesToEven;
}
-/// Returns constrained intrinsic id to represent the given instruction in
-/// strictfp function. If the instruction is already a constrained intrinsic or
-/// does not have a constrained intrinsic counterpart, the function returns
-/// zero.
-Intrinsic::ID getConstrainedIntrinsicID(const Instruction &Instr);
-
/// Returns true if the rounding mode RM may be QRM at compile time or
/// at run time.
inline bool canRoundingModeBe(RoundingMode RM, RoundingMode QRM) {
#include "llvm/IR/FPEnv.h"
#include "llvm/ADT/StringSwitch.h"
-#include "llvm/IR/InstrTypes.h"
-#include "llvm/IR/IntrinsicInst.h"
-#include "llvm/IR/Intrinsics.h"
namespace llvm {
}
return ExceptStr;
}
-
-Intrinsic::ID getConstrainedIntrinsicID(const Instruction &Instr) {
- Intrinsic::ID IID = Intrinsic::not_intrinsic;
- switch (Instr.getOpcode()) {
- case Instruction::FCmp:
- // Unlike other instructions FCmp can be mapped to one of two intrinsic
- // functions. We choose the non-signaling variant.
- IID = Intrinsic::experimental_constrained_fcmp;
- break;
-
- // Instructions
-#define INSTRUCTION(NAME, NARG, ROUND_MODE, INTRINSIC) \
- case Instruction::NAME: \
- IID = Intrinsic::INTRINSIC; \
- break;
-#define FUNCTION(NAME, NARG, ROUND_MODE, INTRINSIC)
-#define CMP_INSTRUCTION(NAME, NARG, ROUND_MODE, INTRINSIC, DAGN)
-#include "llvm/IR/ConstrainedOps.def"
-
- // Intrinsic calls.
- case Instruction::Call:
- if (auto *IntrinCall = dyn_cast<IntrinsicInst>(&Instr)) {
- switch (IntrinCall->getIntrinsicID()) {
-#define FUNCTION(NAME, NARG, ROUND_MODE, INTRINSIC) \
- case Intrinsic::NAME: \
- IID = Intrinsic::INTRINSIC; \
- break;
-#define INSTRUCTION(NAME, NARG, ROUND_MODE, INTRINSIC)
-#define CMP_INSTRUCTION(NAME, NARG, ROUND_MODE, INTRINSIC, DAGN)
-#include "llvm/IR/ConstrainedOps.def"
- default:
- break;
- }
- }
- break;
- default:
- break;
- }
-
- return IID;
-}
-
} // namespace llvm
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/DebugInfoMetadata.h"
#include "llvm/IR/DerivedTypes.h"
-#include "llvm/IR/FPEnv.h"
#include "llvm/IR/Function.h"
#include "llvm/IR/IRBuilder.h"
#include "llvm/IR/LLVMContext.h"
I->deleteValue();
}
-TEST(InstructionTest, ConstrainedTrans) {
- LLVMContext Context;
- std::unique_ptr<Module> M(new Module("MyModule", Context));
- FunctionType *FTy =
- FunctionType::get(Type::getVoidTy(Context),
- {Type::getFloatTy(Context), Type::getFloatTy(Context),
- Type::getInt32Ty(Context)},
- false);
- auto *F = Function::Create(FTy, Function::ExternalLinkage, "", M.get());
- auto *BB = BasicBlock::Create(Context, "bb", F);
- IRBuilder<> Builder(Context);
- Builder.SetInsertPoint(BB);
- auto *Arg0 = F->arg_begin();
- auto *Arg1 = F->arg_begin() + 1;
-
- {
- auto *I = cast<Instruction>(Builder.CreateFAdd(Arg0, Arg1));
- EXPECT_EQ(Intrinsic::experimental_constrained_fadd,
- getConstrainedIntrinsicID(*I));
- }
-
- {
- auto *I = cast<Instruction>(
- Builder.CreateFPToSI(Arg0, Type::getInt32Ty(Context)));
- EXPECT_EQ(Intrinsic::experimental_constrained_fptosi,
- getConstrainedIntrinsicID(*I));
- }
-
- {
- auto *I = cast<Instruction>(Builder.CreateIntrinsic(
- Intrinsic::ceil, {Type::getFloatTy(Context)}, {Arg0}));
- EXPECT_EQ(Intrinsic::experimental_constrained_ceil,
- getConstrainedIntrinsicID(*I));
- }
-
- {
- auto *I = cast<Instruction>(Builder.CreateFCmpOEQ(Arg0, Arg1));
- EXPECT_EQ(Intrinsic::experimental_constrained_fcmp,
- getConstrainedIntrinsicID(*I));
- }
-
- {
- auto *Arg2 = F->arg_begin() + 2;
- auto *I = cast<Instruction>(Builder.CreateAdd(Arg2, Arg2));
- EXPECT_EQ(Intrinsic::not_intrinsic, getConstrainedIntrinsicID(*I));
- }
-
- {
- auto *I = cast<Instruction>(Builder.CreateConstrainedFPBinOp(
- Intrinsic::experimental_constrained_fadd, Arg0, Arg0));
- EXPECT_EQ(Intrinsic::not_intrinsic, getConstrainedIntrinsicID(*I));
- }
-}
TEST(InstructionsTest, isEliminableCastPair) {
LLVMContext C;