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[ConstExpr] Remove select constant expression

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This removes the select constant expression, as part of
https://discourse.llvm.org/t/rfc-remove-most-constant-expressions/63179.
Uses of this expressions have already been removed in advance,
so this just removes related infrastructure and updates tests.

Differential Revision: https://reviews.llvm.org/D145382
This commit is contained in:
Nikita Popov 2023-03-06 10:46:22 +01:00
parent b293c6280d
commit bbfb13a5ff
38 changed files with 108 additions and 307 deletions
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2
llvm/bindings/ocaml/llvm/llvm.ml
View File

@ -685,8 +685,6 @@ external const_pointercast : llvalue -> lltype -> llvalue
external const_intcast : llvalue -> lltype -> is_signed:bool -> llvalue
= "llvm_const_intcast"
external const_fpcast : llvalue -> lltype -> llvalue = "llvm_const_fpcast"
external const_select : llvalue -> llvalue -> llvalue -> llvalue
= "llvm_const_select"
external const_extractelement : llvalue -> llvalue -> llvalue
= "llvm_const_extractelement"
external const_insertelement : llvalue -> llvalue -> llvalue -> llvalue

5
llvm/bindings/ocaml/llvm/llvm.mli
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@ -1268,11 +1268,6 @@ val const_intcast : llvalue -> lltype -> is_signed:bool -> llvalue
See the method [llvm::ConstantExpr::getFPCast]. *)
val const_fpcast : llvalue -> lltype -> llvalue
(** [const_select cond t f] returns the constant conditional which returns value
[t] if the boolean constant [cond] is true and the value [f] otherwise.
See the method [llvm::ConstantExpr::getSelect]. *)
val const_select : llvalue -> llvalue -> llvalue -> llvalue
(** [const_extractelement vec i] returns the constant [i]th element of
constant vector [vec]. [i] must be a constant [i32] value unsigned less than
the size of the vector.

7
llvm/bindings/ocaml/llvm/llvm_ocaml.c
View File

@ -1385,13 +1385,6 @@ value llvm_const_fpcast(value CV, value T) {
return to_val(Value);
}
/* llvalue -> llvalue -> llvalue -> llvalue */
value llvm_const_select(value Cond, value IfTrue, value IfFalse) {
LLVMValueRef Value =
LLVMConstSelect(Value_val(Cond), Value_val(IfTrue), Value_val(IfFalse));
return to_val(Value);
}
/* llvalue -> llvalue -> llvalue */
value llvm_const_extractelement(value V, value I) {
LLVMValueRef Value = LLVMConstExtractElement(Value_val(V), Value_val(I));

11
llvm/docs/ReleaseNotes.rst
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@ -56,6 +56,11 @@ Changes to the LLVM IR
* The ``nofpclass`` attribute was introduced. This allows more
optimizations around special floating point value comparisons.
* The constant expression variants of the following instructions have been
removed:
* ``select``
Changes to building LLVM
------------------------
@ -151,6 +156,12 @@ Changes to the C API
These belonged to the no longer supported legacy pass manager.
* As part of the opaque pointer transition, ``LLVMGetElementType`` no longer
gives the pointee type of a pointer type.
* The following functions for creating constant expressions have been removed,
because the underlying constant expressions are no longer supported. Instead,
an instruction should be created using the ``LLVMBuildXYZ`` APIs, which will
constant fold the operands if possible and create an instruction otherwise:
* ``LLVMConstSelect``
Changes to the FastISel infrastructure
--------------------------------------

3
llvm/include/llvm-c/Core.h
View File

@ -2257,9 +2257,6 @@ LLVMValueRef LLVMConstPointerCast(LLVMValueRef ConstantVal,
LLVMValueRef LLVMConstIntCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType,
LLVMBool isSigned);
LLVMValueRef LLVMConstFPCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType);
LLVMValueRef LLVMConstSelect(LLVMValueRef ConstantCondition,
LLVMValueRef ConstantIfTrue,
LLVMValueRef ConstantIfFalse);
LLVMValueRef LLVMConstExtractElement(LLVMValueRef VectorConstant,
LLVMValueRef IndexConstant);
LLVMValueRef LLVMConstInsertElement(LLVMValueRef VectorConstant,

6
llvm/include/llvm/IR/Constants.h
View File

@ -1208,12 +1208,6 @@ public:
/// Return true if this is a compare constant expression
bool isCompare() const;
/// Select constant expr
///
/// \param OnlyIfReducedTy see \a getWithOperands() docs.
static Constant *getSelect(Constant *C, Constant *V1, Constant *V2,
Type *OnlyIfReducedTy = nullptr);
/// get - Return a binary or shift operator constant expression,
/// folding if possible.
///

12
llvm/lib/AsmParser/LLParser.cpp
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@ -3882,6 +3882,8 @@ bool LLParser::parseValID(ValID &ID, PerFunctionState *PFS, Type *ExpectedTy) {
return error(ID.Loc, "frem constexprs are no longer supported");
case lltok::kw_fneg:
return error(ID.Loc, "fneg constexprs are no longer supported");
case lltok::kw_select:
return error(ID.Loc, "select constexprs are no longer supported");
case lltok::kw_icmp:
case lltok::kw_fcmp: {
unsigned PredVal, Opc = Lex.getUIntVal();
@ -4011,8 +4013,7 @@ bool LLParser::parseValID(ValID &ID, PerFunctionState *PFS, Type *ExpectedTy) {
case lltok::kw_getelementptr:
case lltok::kw_shufflevector:
case lltok::kw_insertelement:
case lltok::kw_extractelement:
case lltok::kw_select: {
case lltok::kw_extractelement: {
unsigned Opc = Lex.getUIntVal();
SmallVector<Constant*, 16> Elts;
bool InBounds = false;
@ -4091,13 +4092,6 @@ bool LLParser::parseValID(ValID &ID, PerFunctionState *PFS, Type *ExpectedTy) {
ID.ConstantVal = ConstantExpr::getGetElementPtr(Ty, Elts[0], Indices,
InBounds, InRangeOp);
} else if (Opc == Instruction::Select) {
if (Elts.size() != 3)
return error(ID.Loc, "expected three operands to select");
if (const char *Reason = SelectInst::areInvalidOperands(Elts[0], Elts[1],
Elts[2]))
return error(ID.Loc, Reason);
ID.ConstantVal = ConstantExpr::getSelect(Elts[0], Elts[1], Elts[2]);
} else if (Opc == Instruction::ShuffleVector) {
if (Elts.size() != 3)
return error(ID.Loc, "expected three operands to shufflevector");

11
llvm/lib/Bitcode/Reader/BitcodeReader.cpp
View File

@ -1417,7 +1417,13 @@ static bool isConstExprSupported(const BitcodeConstant *BC) {
if (Opcode == Instruction::GetElementPtr)
return ConstantExpr::isSupportedGetElementPtr(BC->SrcElemTy);
return Opcode != Instruction::FNeg;
switch (Opcode) {
case Instruction::FNeg:
case Instruction::Select:
return false;
default:
return true;
}
}
Expected<Value *> BitcodeReader::materializeValue(unsigned StartValID,
@ -1549,9 +1555,6 @@ Expected<Value *> BitcodeReader::materializeValue(unsigned StartValID,
ArrayRef(ConstOps).drop_front(),
BC->Flags, BC->getInRangeIndex());
break;
case Instruction::Select:
C = ConstantExpr::getSelect(ConstOps[0], ConstOps[1], ConstOps[2]);
break;
case Instruction::ExtractElement:
C = ConstantExpr::getExtractElement(ConstOps[0], ConstOps[1]);
break;

6
llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
View File

@ -2676,12 +2676,6 @@ void ModuleBitcodeWriter::writeConstants(unsigned FirstVal, unsigned LastVal,
}
break;
}
case Instruction::Select:
Code = bitc::CST_CODE_CE_SELECT;
Record.push_back(VE.getValueID(C->getOperand(0)));
Record.push_back(VE.getValueID(C->getOperand(1)));
Record.push_back(VE.getValueID(C->getOperand(2)));
break;
case Instruction::ExtractElement:
Code = bitc::CST_CODE_CE_EXTRACTELT;
Record.push_back(VE.getTypeID(C->getOperand(0)->getType()));

11
llvm/lib/IR/ConstantFold.cpp
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@ -593,17 +593,6 @@ Constant *llvm::ConstantFoldSelectInstruction(Constant *Cond,
if (isa<UndefValue>(V1) && NotPoison(V2)) return V2;
if (isa<UndefValue>(V2) && NotPoison(V1)) return V1;
if (ConstantExpr *TrueVal = dyn_cast<ConstantExpr>(V1)) {
if (TrueVal->getOpcode() == Instruction::Select)
if (TrueVal->getOperand(0) == Cond)
return ConstantExpr::getSelect(Cond, TrueVal->getOperand(1), V2);
}
if (ConstantExpr *FalseVal = dyn_cast<ConstantExpr>(V2)) {
if (FalseVal->getOpcode() == Instruction::Select)
if (FalseVal->getOperand(0) == Cond)
return ConstantExpr::getSelect(Cond, V1, FalseVal->getOperand(2));
}
return nullptr;
}

23
llvm/lib/IR/Constants.cpp
View File

@ -547,8 +547,6 @@ void llvm::deleteConstant(Constant *C) {
delete static_cast<CastConstantExpr *>(C);
else if (isa<BinaryConstantExpr>(C))
delete static_cast<BinaryConstantExpr *>(C);
else if (isa<SelectConstantExpr>(C))
delete static_cast<SelectConstantExpr *>(C);
else if (isa<ExtractElementConstantExpr>(C))
delete static_cast<ExtractElementConstantExpr *>(C);
else if (isa<InsertElementConstantExpr>(C))
@ -1488,8 +1486,6 @@ Constant *ConstantExpr::getWithOperands(ArrayRef<Constant *> Ops, Type *Ty,
case Instruction::BitCast:
case Instruction::AddrSpaceCast:
return ConstantExpr::getCast(getOpcode(), Ops[0], Ty, OnlyIfReduced);
case Instruction::Select:
return ConstantExpr::getSelect(Ops[0], Ops[1], Ops[2], OnlyIfReducedTy);
case Instruction::InsertElement:
return ConstantExpr::getInsertElement(Ops[0], Ops[1], Ops[2],
OnlyIfReducedTy);
@ -2441,23 +2437,6 @@ Constant *ConstantExpr::getCompare(unsigned short Predicate, Constant *C1,
}
}
Constant *ConstantExpr::getSelect(Constant *C, Constant *V1, Constant *V2,
Type *OnlyIfReducedTy) {
assert(!SelectInst::areInvalidOperands(C, V1, V2)&&"Invalid select operands");
if (Constant *SC = ConstantFoldSelectInstruction(C, V1, V2))
return SC; // Fold common cases
if (OnlyIfReducedTy == V1->getType())
return nullptr;
Constant *ArgVec[] = { C, V1, V2 };
ConstantExprKeyType Key(Instruction::Select, ArgVec);
LLVMContextImpl *pImpl = C->getContext().pImpl;
return pImpl->ExprConstants.getOrCreate(V1->getType(), Key);
}
Constant *ConstantExpr::getGetElementPtr(Type *Ty, Constant *C,
ArrayRef<Value *> Idxs, bool InBounds,
std::optional<unsigned> InRangeIndex,
@ -3439,8 +3418,6 @@ Instruction *ConstantExpr::getAsInstruction(Instruction *InsertBefore) const {
case Instruction::AddrSpaceCast:
return CastInst::Create((Instruction::CastOps)getOpcode(), Ops[0],
getType(), "", InsertBefore);
case Instruction::Select:
return SelectInst::Create(Ops[0], Ops[1], Ops[2], "", InsertBefore);
case Instruction::InsertElement:
return InsertElementInst::Create(Ops[0], Ops[1], Ops[2], "", InsertBefore);
case Instruction::ExtractElement:

33
llvm/lib/IR/ConstantsContext.h
View File

@ -90,32 +90,6 @@ public:
}
};
/// SelectConstantExpr - This class is private to Constants.cpp, and is used
/// behind the scenes to implement select constant exprs.
class SelectConstantExpr final : public ConstantExpr {
public:
SelectConstantExpr(Constant *C1, Constant *C2, Constant *C3)
: ConstantExpr(C2->getType(), Instruction::Select, &Op<0>(), 3) {
Op<0>() = C1;
Op<1>() = C2;
Op<2>() = C3;
}
// allocate space for exactly three operands
void *operator new(size_t S) { return User::operator new(S, 3); }
void operator delete(void *Ptr) { User::operator delete(Ptr); }
/// Transparently provide more efficient getOperand methods.
DECLARE_TRANSPARENT_OPERAND_ACCESSORS(Value);
static bool classof(const ConstantExpr *CE) {
return CE->getOpcode() == Instruction::Select;
}
static bool classof(const Value *V) {
return isa<ConstantExpr>(V) && classof(cast<ConstantExpr>(V));
}
};
/// ExtractElementConstantExpr - This class is private to
/// Constants.cpp, and is used behind the scenes to implement
/// extractelement constant exprs.
@ -279,11 +253,6 @@ struct OperandTraits<BinaryConstantExpr>
: public FixedNumOperandTraits<BinaryConstantExpr, 2> {};
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(BinaryConstantExpr, Value)
template <>
struct OperandTraits<SelectConstantExpr>
: public FixedNumOperandTraits<SelectConstantExpr, 3> {};
DEFINE_TRANSPARENT_OPERAND_ACCESSORS(SelectConstantExpr, Value)
template <>
struct OperandTraits<ExtractElementConstantExpr>
: public FixedNumOperandTraits<ExtractElementConstantExpr, 2> {};
@ -523,8 +492,6 @@ public:
return new BinaryConstantExpr(Opcode, Ops[0], Ops[1],
SubclassOptionalData);
llvm_unreachable("Invalid ConstantExpr!");
case Instruction::Select:
return new SelectConstantExpr(Ops[0], Ops[1], Ops[2]);
case Instruction::ExtractElement:
return new ExtractElementConstantExpr(Ops[0], Ops[1]);
case Instruction::InsertElement:

8
llvm/lib/IR/Core.cpp
View File

@ -1799,14 +1799,6 @@ LLVMValueRef LLVMConstFPCast(LLVMValueRef ConstantVal, LLVMTypeRef ToType) {
unwrap(ToType)));
}
LLVMValueRef LLVMConstSelect(LLVMValueRef ConstantCondition,
LLVMValueRef ConstantIfTrue,
LLVMValueRef ConstantIfFalse) {
return wrap(ConstantExpr::getSelect(unwrap<Constant>(ConstantCondition),
unwrap<Constant>(ConstantIfTrue),
unwrap<Constant>(ConstantIfFalse)));
}
LLVMValueRef LLVMConstExtractElement(LLVMValueRef VectorConstant,
LLVMValueRef IndexConstant) {
return wrap(ConstantExpr::getExtractElement(unwrap<Constant>(VectorConstant),

12
llvm/lib/Transforms/Scalar/InferAddressSpaces.cpp
View File

@ -694,18 +694,6 @@ static Value *cloneConstantExprWithNewAddressSpace(
return ConstantExpr::getAddrSpaceCast(CE, TargetType);
}
if (CE->getOpcode() == Instruction::Select) {
Constant *Src0 = CE->getOperand(1);
Constant *Src1 = CE->getOperand(2);
if (Src0->getType()->getPointerAddressSpace() ==
Src1->getType()->getPointerAddressSpace()) {
return ConstantExpr::getSelect(
CE->getOperand(0), ConstantExpr::getAddrSpaceCast(Src0, TargetType),
ConstantExpr::getAddrSpaceCast(Src1, TargetType));
}
}
if (CE->getOpcode() == Instruction::IntToPtr) {
assert(isNoopPtrIntCastPair(cast<Operator>(CE), *DL, TTI));
Constant *Src = cast<ConstantExpr>(CE->getOperand(0))->getOperand(0);

7
llvm/test/Analysis/ScalarEvolution/logical-operations.ll
View File

@ -410,11 +410,14 @@ define ptr @select_between_constantptrs(i1 %c, ptr %x) {
define ptr @tautological_select() {
; CHECK-LABEL: 'tautological_select'
; CHECK-NEXT: Classifying expressions for: @tautological_select
; CHECK-NEXT: %r = getelementptr i8, ptr @constant, i32 0
; CHECK-NEXT: %s = select i1 true, ptr @constant, ptr @another_constant
; CHECK-NEXT: --> @constant U: [0,-3) S: [-9223372036854775808,9223372036854775805)
; CHECK-NEXT: %r = getelementptr i8, ptr %s
; CHECK-NEXT: --> @constant U: [0,-3) S: [-9223372036854775808,9223372036854775805)
; CHECK-NEXT: Determining loop execution counts for: @tautological_select
;
%r = getelementptr i8, ptr select (i1 true, ptr @constant, ptr @another_constant), i32 0
%s = select i1 true, ptr @constant, ptr @another_constant
%r = getelementptr i8, ptr %s
ret ptr %r
}

8
llvm/test/Assembler/ConstantExprFoldSelect.ll
View File

@ -1,9 +1,9 @@
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
; RUN: opt -S -passes=instsimplify < %s | FileCheck %s
; RUN: verify-uselistorder %s
; PR18319
define void @function() {
%c = trunc <4 x i16> select (<4 x i1> <i1 undef, i1 undef, i1 false, i1 true>, <4 x i16> <i16 undef, i16 2, i16 3, i16 4>, <4 x i16> <i16 -1, i16 -2, i16 -3, i16 -4>) to <4 x i8>
define <4 x i16> @function() {
%s = select <4 x i1> <i1 undef, i1 undef, i1 false, i1 true>, <4 x i16> <i16 undef, i16 2, i16 3, i16 4>, <4 x i16> <i16 -1, i16 -2, i16 -3, i16 -4>
; CHECK: <i16 undef, i16 -2, i16 -3, i16 4>
ret void
ret <4 x i16> %s
}

5
llvm/test/Bindings/OCaml/core.ml
View File

@ -333,7 +333,6 @@ let test_constants () =
group "misc constants";
(* CHECK: const_size_of{{.*}}getelementptr{{.*}}null
* CHECK: const_gep{{.*}}getelementptr
* CHECK: const_select{{.*}}select
* CHECK: const_extractelement{{.*}}extractelement
* CHECK: const_insertelement{{.*}}insertelement
* CHECK: const_shufflevector = global <4 x i32> <i32 0, i32 1, i32 1, i32 0>
@ -341,10 +340,6 @@ let test_constants () =
ignore (define_global "const_size_of" (size_of (pointer_type context)) m);
ignore (define_global "const_gep" (const_gep i8_type foldbomb_gv [| five |])
m);
ignore (define_global "const_select" (const_select
(const_icmp Icmp.Sle foldbomb five)
(const_int i8_type (-1))
(const_int i8_type 0)) m);
let zero = const_int i32_type 0 in
let one = const_int i32_type 1 in
ignore (define_global "const_extractelement" (const_extractelement

18
llvm/test/Bitcode/select.ll
View File

@ -1,18 +0,0 @@
; RUN: llvm-as < %s | llvm-dis | FileCheck %s
; RUN: verify-uselistorder < %s
define <2 x i32> @main() {
ret <2 x i32> select (<2 x i1> <i1 false, i1 undef>, <2 x i32> zeroinitializer, <2 x i32> <i32 0, i32 undef>)
}
; CHECK: define <2 x i32> @main() {
; CHECK: ret <2 x i32> <i32 0, i32 undef>
; CHECK: }
define <2 x float> @f() {
ret <2 x float> select (i1 ptrtoint (<2 x float> ()* @f to i1), <2 x float> <float 1.000000e+00, float 0.000000e+00>, <2 x float> zeroinitializer)
}
; CHECK: define <2 x float> @f() {
; CHECK: ret <2 x float> select (i1 ptrtoint (ptr @f to i1), <2 x float> <float 1.000000e+00, float 0.000000e+00>, <2 x float> zeroinitializer)
; CHECK: }

4
llvm/test/Bitcode/thinlto-function-summary-callgraph-cast.ll
View File

@ -9,7 +9,7 @@
; "op7" is a call to "callee" function.
; CHECK-NEXT: <PERMODULE {{.*}} op7=3 op8=[[ALIASID:[0-9]+]]/>
; "another_caller" has only references but no calls.
; CHECK-NEXT: <PERMODULE {{.*}} op4=3 {{.*}} op9={{[0-9]+}}/>
; CHECK-NEXT: <PERMODULE {{.*}}/>
; CHECK-NEXT: <PERMODULE {{.*}} op0=[[ALIASEEID:[0-9]+]]
; CHECK-NEXT: <ALIAS {{.*}} op0=[[ALIASID]] {{.*}} op2=[[ALIASEEID]]/>
; CHECK-NEXT: <BLOCK_COUNT op0=3/>
@ -27,7 +27,7 @@ define void @caller() {
define void @another_caller() {
; Test calls that aren't handled either as direct or indirect.
call void select (i1 icmp eq (ptr @global, ptr null), ptr @f, ptr @g)()
call void getelementptr (i8, ptr @f, i64 ptrtoint (ptr @g to i64))()
ret void
}

8
llvm/test/Bitcode/vscale-round-trip.ll
View File

@ -36,14 +36,14 @@ define <vscale x 4 x i32> @non_const_shufflevector(<vscale x 4 x i32> %lhs,
}
; CHECK-LABEL: define <vscale x 4 x i32> @const_select()
; CHECK: <vscale x 4 x i32> select (<vscale x 4 x i1>
; CHECK: select <vscale x 4 x i1>
define <vscale x 4 x i32> @const_select() {
ret <vscale x 4 x i32> select
(<vscale x 4 x i1> insertelement
%s = select <vscale x 4 x i1> insertelement
(<vscale x 4 x i1> undef,
i1 icmp ne (i32* @important_val, i32* null),
i32 0),
<vscale x 4 x i32> zeroinitializer,
<vscale x 4 x i32> insertelement (<vscale x 4 x i32> undef, i32 1, i32 0))
<vscale x 4 x i32> insertelement (<vscale x 4 x i32> undef, i32 1, i32 0)
ret <vscale x 4 x i32> %s
}

37
llvm/test/CodeGen/AMDGPU/GlobalISel/irtranslator-constantexpr.ll
View File

@ -20,43 +20,6 @@ define i32 @test() {
ret i32 bitcast (<1 x i32> <i32 extractelement (<1 x i32> bitcast (i32 zext (i1 icmp eq (ptr @var, ptr inttoptr (i32 -1 to ptr)) to i32) to <1 x i32>), i64 0)> to i32)
}
@gint = external addrspace(1) global i8, align 4
; Technically we should be able to fold away the compare to true, but
; currently constexpr doesn't understand null in non-0 address spaces.
define amdgpu_kernel void @constantexpr_select_0() {
; CHECK-LABEL: name: constantexpr_select_0
; CHECK: bb.1 (%ir-block.0):
; CHECK-NEXT: [[GV:%[0-9]+]]:_(p1) = G_GLOBAL_VALUE @gint
; CHECK-NEXT: [[C:%[0-9]+]]:_(p1) = G_CONSTANT i64 0
; CHECK-NEXT: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[GV]](p1), [[C]]
; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; CHECK-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP]](s1), [[C1]], [[C2]]
; CHECK-NEXT: [[DEF:%[0-9]+]]:_(p1) = G_IMPLICIT_DEF
; CHECK-NEXT: G_STORE [[SELECT]](s32), [[DEF]](p1) :: (store (s32) into `ptr addrspace(1) undef`, addrspace 1)
; CHECK-NEXT: S_ENDPGM 0
store i32 select (i1 icmp eq (ptr addrspace(1) @gint, ptr addrspace(1) null), i32 1, i32 0), ptr addrspace(1) undef, align 4
ret void
}
define amdgpu_kernel void @constantexpr_select_1() {
; CHECK-LABEL: name: constantexpr_select_1
; CHECK: bb.1 (%ir-block.0):
; CHECK-NEXT: [[C:%[0-9]+]]:_(s64) = G_CONSTANT i64 1024
; CHECK-NEXT: [[INTTOPTR:%[0-9]+]]:_(p1) = G_INTTOPTR [[C]](s64)
; CHECK-NEXT: [[GV:%[0-9]+]]:_(p1) = G_GLOBAL_VALUE @gint
; CHECK-NEXT: [[ICMP:%[0-9]+]]:_(s1) = G_ICMP intpred(eq), [[INTTOPTR]](p1), [[GV]]
; CHECK-NEXT: [[C1:%[0-9]+]]:_(s32) = G_CONSTANT i32 1
; CHECK-NEXT: [[C2:%[0-9]+]]:_(s32) = G_CONSTANT i32 0
; CHECK-NEXT: [[SELECT:%[0-9]+]]:_(s32) = G_SELECT [[ICMP]](s1), [[C1]], [[C2]]
; CHECK-NEXT: [[DEF:%[0-9]+]]:_(p1) = G_IMPLICIT_DEF
; CHECK-NEXT: G_STORE [[SELECT]](s32), [[DEF]](p1) :: (store (s32) into `ptr addrspace(1) undef`, addrspace 1)
; CHECK-NEXT: S_ENDPGM 0
store i32 select (i1 icmp eq (ptr addrspace(1) @gint, ptr addrspace(1) inttoptr (i64 1024 to ptr addrspace(1))), i32 1, i32 0), ptr addrspace(1) undef, align 4
ret void
}
@a = external global [2 x i32], align 4
define i32 @test_fcmp_constexpr() {

6
llvm/test/CodeGen/Generic/pr33094.ll
View File

@ -12,8 +12,8 @@
@B_Inst = global %B zeroinitializer
define i64 @foo() {
%e = extractvalue %Tuple select (i1 icmp eq
(ptr @A_Inst, ptr @B_Inst),
%Tuple { i64 33 }, %Tuple { i64 42 }), 0
%s = select i1 icmp eq (ptr @A_Inst, ptr @B_Inst),
%Tuple { i64 33 }, %Tuple { i64 42 }
%e = extractvalue %Tuple %s, 0
ret i64 %e
}

23
llvm/test/CodeGen/PowerPC/ext-bool-trunc-repl.ll
View File

@ -11,26 +11,35 @@ define void @fn2() #0 {
br i1 undef, label %1, label %10
; <label>:1: ; preds = %0
1: ; preds = %0
br i1 undef, label %3, label %2
; <label>:2: ; preds = %2, %1
2: ; preds = %2, %1
br i1 undef, label %3, label %2
; <label>:3: ; preds = %2, %1
3: ; preds = %2, %1
br i1 undef, label %8, label %4
; <label>:4: ; preds = %4, %3
4: ; preds = %4, %3
%5 = phi i64 [ %6, %4 ], [ undef, %3 ]
%6 = and i64 %5, and (i64 and (i64 and (i64 and (i64 and (i64 and (i64 and (i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i16), i16 0), i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 lshr (i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 6)) to i64), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i16), i16 0), i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 lshr (i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i16), i16 0), i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 lshr (i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i16), i16 0), i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 lshr (i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i16), i16 0), i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 lshr (i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i16), i16 0), i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 lshr (i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i16), i16 0), i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 lshr (i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 6)) to i64)), i64 sext (i32 select (i1 icmp slt (i16 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i16), i16 0), i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 lshr (i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 6)) to i64))
%constexpr = select i1 icmp slt (i16 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i16), i16 0), i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 lshr (i32 zext (i1 icmp eq (ptr getelementptr inbounds ([2 x i32], ptr @d, i64 0, i64 1), ptr @c) to i32), i32 6)
%constexpr1 = sext i32 %constexpr to i64
%constexpr2 = and i64 %constexpr1, %constexpr1
%constexpr3 = and i64 %constexpr2, %constexpr1
%constexpr4 = and i64 %constexpr3, %constexpr1
%constexpr5 = and i64 %constexpr4, %constexpr1
%constexpr6 = and i64 %constexpr5, %constexpr1
%constexpr7 = and i64 %constexpr6, %constexpr1
%constexpr8 = and i64 %constexpr7, %constexpr1
%6 = and i64 %5, %constexpr8
%7 = icmp slt i32 undef, 6
br i1 %7, label %4, label %8
; <label>:8: ; preds = %4, %3
8: ; preds = %4, %3
%9 = phi i64 [ undef, %3 ], [ %6, %4 ]
br label %10
; <label>:10: ; preds = %8, %0
10: ; preds = %8, %0
ret void
}

15
llvm/test/CodeGen/PowerPC/pr24636.ll
View File

@ -2,7 +2,7 @@
target datalayout = "e-m:e-i64:64-n32:64"
target triple = "powerpc64le-unknown-linux-gnu"
@c = external global i32, align 4
@c = external unnamed_addr global i32, align 4
@b = external global [1 x i32], align 4
; Function Attrs: nounwind
@ -25,7 +25,16 @@ define void @fn2() #0 align 4 {
.lr.ph.split.split: ; preds = %.lr.ph.split.split, %.lr.ph.split
%1 = phi i32 [ %2, %.lr.ph.split.split ], [ undef, %.lr.ph.split ]
%2 = and i32 %1, and (i32 and (i32 and (i32 and (i32 and (i32 and (i32 and (i32 zext (i1 select (i1 icmp eq (ptr @c, ptr @b), i1 true, i1 false) to i32), i32 zext (i1 select (i1 icmp eq (ptr @c, ptr @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq (ptr @c, ptr @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq (ptr @c, ptr @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq (ptr @c, ptr @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq (ptr @c, ptr @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq (ptr @c, ptr @b), i1 true, i1 false) to i32)), i32 zext (i1 select (i1 icmp eq (ptr @c, ptr @b), i1 true, i1 false) to i32))
%constexpr = select i1 icmp eq (ptr @c, ptr @b), i1 true, i1 false
%constexpr1 = zext i1 %constexpr to i32
%constexpr2 = and i32 %constexpr1, %constexpr1
%constexpr3 = and i32 %constexpr2, %constexpr1
%constexpr4 = and i32 %constexpr3, %constexpr1
%constexpr5 = and i32 %constexpr4, %constexpr1
%constexpr6 = and i32 %constexpr5, %constexpr1
%constexpr7 = and i32 %constexpr6, %constexpr1
%constexpr8 = and i32 %constexpr7, %constexpr1
%2 = and i32 %1, %constexpr8
%3 = icmp slt i32 undef, 4
br i1 %3, label %.lr.ph.split.split, label %._crit_edge
@ -33,7 +42,7 @@ define void @fn2() #0 align 4 {
%.lcssa = phi i32 [ undef, %.lr.ph.split ], [ %2, %.lr.ph.split.split ]
br label %4
; <label>:4 ; preds = %._crit_edge, %0
4: ; preds = %._crit_edge, %0
ret void
}

7
llvm/test/CodeGen/WebAssembly/call.ll
View File

@ -216,7 +216,10 @@ define void @coldcc_tail_call_void_nullary() {
; CHECK-NEXT: i32.const $push[[L0:[0-9]+]]=, 2{{$}}
; CHECK-NEXT: i32.const $push[[L1:[0-9]+]]=, 3{{$}}
; CHECK-NEXT: call .Lvararg_func_bitcast, $pop[[L0]], $pop[[L1]]{{$}}
; CHECK-NEXT: call other_void_nullary{{$}}
; CHECK-NEXT: i32.const $push[[L3:[0-9]+]]=, void_nullary{{$}}
; CHECK-NEXT: i32.const $push[[L2:[0-9]+]]=, other_void_nullary{{$}}
; CHECK-NEXT: i32.add $push[[L4:[0-9]+]]=, $pop[[L3]], $pop[[L2]]{{$}}
; CHECK-NEXT: call_indirect $pop[[L4]]{{$}}
; CHECK-NEXT: call void_nullary{{$}}
; CHECK-NEXT: return{{$}}
declare void @vararg_func(...)
@ -226,7 +229,7 @@ bb0:
call void @vararg_func(i32 2, i32 3)
br label %bb1
bb1:
call void select (i1 0, ptr @void_nullary, ptr @other_void_nullary)()
call void getelementptr (i8, ptr @void_nullary, i32 ptrtoint (ptr @other_void_nullary to i32))()
br label %bb2
bb2:
call void inttoptr (i32 ptrtoint (ptr @void_nullary to i32) to ptr)()

9
llvm/test/CodeGen/X86/2008-09-19-RegAllocBug.ll
View File

@ -9,10 +9,11 @@ entry:
%1 = trunc i32 %0 to i8 ; <i8> [#uses=1]
%2 = sub i8 1, %1 ; <i8> [#uses=1]
%3 = sext i8 %2 to i32 ; <i32> [#uses=1]
%.0 = ashr i32 %3, select (i1 icmp ne (i8 zext (i1 icmp ugt (i32 ptrtoint (ptr @func_4 to i32), i32 3) to i8), i8 0), i32 0, i32 ptrtoint (ptr @func_4 to i32)) ; <i32> [#uses=1]
%4 = urem i32 %0, %.0 ; <i32> [#uses=1]
%5 = icmp eq i32 %4, 0 ; <i1> [#uses=1]
br i1 %5, label %return, label %bb4
%s = select i1 icmp ne (i8 zext (i1 icmp ugt (i32 ptrtoint (ptr @func_4 to i32), i32 3) to i8), i8 0), i32 0, i32 ptrtoint (ptr @func_4 to i32)
%ashr = ashr i32 %3, %s
%urem = urem i32 %0, %ashr
%cmp = icmp eq i32 %urem, 0
br i1 %cmp, label %return, label %bb4
bb4: ; preds = %entry
ret i32 undef

3
llvm/test/CodeGen/X86/no-plt.ll
View File

@ -5,7 +5,8 @@
define i32 @fp_weakfunc() {
; X64: weakfunc@GOTPCREL(%rip)
ret i32 select (i1 icmp ne (ptr @weakfunc, ptr null), i32 1, i32 0)
%s = select i1 icmp ne (ptr @weakfunc, ptr null), i32 1, i32 0
ret i32 %s
}
declare extern_weak i32 @weakfunc() nonlazybind

10
llvm/test/CodeGen/X86/pr44749.ll
View File

@ -14,9 +14,9 @@ define i32 @a() {
; CHECK-NEXT: subq $-1, %rax
; CHECK-NEXT: setne %al
; CHECK-NEXT: movzbl %al, %eax
; CHECK-NEXT: movl %eax, %ecx
; CHECK-NEXT: leaq {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %rax
; CHECK-NEXT: movsd {{.*#+}} xmm0 = mem[0],zero
; CHECK-NEXT: cvtsi2sd %eax, %xmm0
; CHECK-NEXT: movsd {{.*#+}} xmm2 = mem[0],zero
; CHECK-NEXT: subsd %xmm2, %xmm0
; CHECK-NEXT: movsd {{.*#+}} xmm3 = mem[0],zero
; CHECK-NEXT: movsd {{.*#+}} xmm2 = mem[0],zero
; CHECK-NEXT: cmplesd %xmm1, %xmm0
@ -30,7 +30,9 @@ define i32 @a() {
entry:
%call = call i32 (...) @b()
%conv = sitofp i32 %call to double
%fsub = fsub double sitofp (i32 select (i1 icmp ne (ptr getelementptr (i8, ptr @calloc, i64 1), ptr null), i32 1, i32 0) to double), 1.000000e+02
%sel = select i1 icmp ne (ptr getelementptr (i8, ptr @calloc, i64 1), ptr null), i32 1, i32 0
%sitofp = sitofp i32 %sel to double
%fsub = fsub double %sitofp, 1.000000e+02
%cmp = fcmp ole double %fsub, %conv
%cond = select i1 %cmp, double 1.000000e+00, double 3.140000e+00
%conv2 = fptosi double %cond to i32

2
llvm/test/ThinLTO/X86/funcattrs-prop-unknown.ll
View File

@ -26,7 +26,7 @@ entry:
; CHECK: define void @selectcallee() {
define void @selectcallee() {
; Test calls that aren't handled either as direct or indirect.
call void select (i1 icmp eq (ptr @global, ptr null), ptr @f, ptr @g)()
call void getelementptr (i8, ptr @f, i64 ptrtoint (ptr @g to i64))()
ret void
}

6
llvm/test/Transforms/InferAddressSpaces/AMDGPU/infer-address-space.ll
View File

@ -166,10 +166,12 @@ exit: ; preds = %loop
}
; CHECK-LABEL: @select_bug(
; CHECK: %add.ptr157 = getelementptr inbounds i64, ptr undef, i64 select (i1 icmp ne (ptr inttoptr (i64 4873 to ptr), ptr null), i64 73, i64 93)
; CHECK: %sel = select i1 icmp ne (ptr inttoptr (i64 4873 to ptr), ptr null), i64 73, i64 93
; CHECK: %add.ptr157 = getelementptr inbounds i64, ptr undef, i64 %sel
; CHECK: %cmp169 = icmp uge ptr undef, %add.ptr157
define void @select_bug() #0 {
%add.ptr157 = getelementptr inbounds i64, ptr undef, i64 select (i1 icmp ne (ptr inttoptr (i64 4873 to ptr), ptr null), i64 73, i64 93)
%sel = select i1 icmp ne (ptr inttoptr (i64 4873 to ptr), ptr null), i64 73, i64 93
%add.ptr157 = getelementptr inbounds i64, ptr undef, i64 %sel
%cmp169 = icmp uge ptr undef, %add.ptr157
unreachable
}

58
llvm/test/Transforms/InferAddressSpaces/AMDGPU/select.ll
View File

@ -54,22 +54,6 @@ define amdgpu_kernel void @store_select_mismatch_group_private_flat(i1 %c, ptr a
@lds0 = internal addrspace(3) global i32 123, align 4
@lds1 = internal addrspace(3) global i32 456, align 4
; CHECK-LABEL: @constexpr_select_group_flat(
; CHECK: %tmp = load i32, ptr addrspace(3) select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspace(3) @lds0, ptr addrspace(3) @lds1)
define i32 @constexpr_select_group_flat() #0 {
bb:
%tmp = load i32, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) @lds0 to ptr), ptr addrspacecast (ptr addrspace(3) @lds1 to ptr))
ret i32 %tmp
}
; CHECK-LABEL: @constexpr_select_group_global_flat_mismatch(
; CHECK: %tmp = load i32, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) @lds0 to ptr), ptr addrspacecast (ptr addrspace(1) @global0 to ptr))
define i32 @constexpr_select_group_global_flat_mismatch() #0 {
bb:
%tmp = load i32, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) @lds0 to ptr), ptr addrspacecast (ptr addrspace(1) @global0 to ptr))
ret i32 %tmp
}
; CHECK-LABEL: @store_select_group_flat_null(
; CHECK: %select = select i1 %c, ptr addrspace(3) %group.ptr.0, ptr addrspace(3) addrspacecast (ptr null to ptr addrspace(3))
; CHECK: store i32 -1, ptr addrspace(3) %select
@ -185,48 +169,6 @@ define amdgpu_kernel void @store_select_group_global_mismatch_null_null(i1 %c) #
ret void
}
; CHECK-LABEL: @store_select_group_global_mismatch_null_null_constexpr(
; CHECK: store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) null to ptr), ptr addrspacecast (ptr addrspace(1) null to ptr)), align 4
define amdgpu_kernel void @store_select_group_global_mismatch_null_null_constexpr() #0 {
store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) null to ptr), ptr addrspacecast (ptr addrspace(1) null to ptr)), align 4
ret void
}
; CHECK-LABEL: @store_select_group_global_mismatch_gv_null_constexpr(
; CHECK: store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) @lds0 to ptr), ptr addrspacecast (ptr addrspace(1) null to ptr)), align 4
define amdgpu_kernel void @store_select_group_global_mismatch_gv_null_constexpr() #0 {
store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) @lds0 to ptr), ptr addrspacecast (ptr addrspace(1) null to ptr)), align 4
ret void
}
; CHECK-LABEL: @store_select_group_global_mismatch_null_gv_constexpr(
; CHECK: store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) null to ptr), ptr addrspacecast (ptr addrspace(1) @global0 to ptr)), align 4
define amdgpu_kernel void @store_select_group_global_mismatch_null_gv_constexpr() #0 {
store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) null to ptr), ptr addrspacecast (ptr addrspace(1) @global0 to ptr)), align 4
ret void
}
; CHECK-LABEL: @store_select_group_global_mismatch_inttoptr_null_constexpr(
; CHECK: store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) inttoptr (i64 123 to ptr addrspace(3)) to ptr), ptr addrspacecast (ptr addrspace(1) null to ptr)), align 4
define amdgpu_kernel void @store_select_group_global_mismatch_inttoptr_null_constexpr() #0 {
store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) inttoptr (i64 123 to ptr addrspace(3)) to ptr), ptr addrspacecast (ptr addrspace(1) null to ptr)), align 4
ret void
}
; CHECK-LABEL: @store_select_group_global_mismatch_inttoptr_flat_null_constexpr(
; CHECK: store i32 7, ptr addrspace(1) select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspace(1) addrspacecast (ptr inttoptr (i64 123 to ptr) to ptr addrspace(1)), ptr addrspace(1) null), align 4
define amdgpu_kernel void @store_select_group_global_mismatch_inttoptr_flat_null_constexpr() #0 {
store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr inttoptr (i64 123 to ptr), ptr addrspacecast (ptr addrspace(1) null to ptr)), align 4
ret void
}
; CHECK-LABEL: @store_select_group_global_mismatch_undef_undef_constexpr(
; CHECK: store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) null to ptr), ptr undef), align 4
define amdgpu_kernel void @store_select_group_global_mismatch_undef_undef_constexpr() #0 {
store i32 7, ptr select (i1 icmp eq (i32 ptrtoint (ptr addrspace(3) @lds1 to i32), i32 4), ptr addrspacecast (ptr addrspace(3) null to ptr), ptr addrspacecast (ptr addrspace(1) undef to ptr)), align 4
ret void
}
@lds2 = external addrspace(3) global [1024 x i32], align 4
; CHECK-LABEL: @store_select_group_constexpr_ptrtoint(

11
llvm/test/Transforms/InstCombine/2010-03-03-ExtElim.ll
View File

@ -21,12 +21,19 @@ define i1 @PR6486() nounwind {
define i1 @PR16462_1() nounwind {
; CHECK-LABEL: @PR16462_1(
ret i1 icmp sgt (i32 sext (i16 trunc (i32 select (i1 icmp eq (ptr @a, ptr @d), i32 0, i32 1) to i16) to i32), i32 65535)
%constexpr = select i1 icmp eq (ptr @a, ptr @d), i32 0, i32 1
%constexpr1 = trunc i32 %constexpr to i16
%constexpr2 = sext i16 %constexpr1 to i32
%constexpr3 = icmp sgt i32 %constexpr2, 65535
ret i1 %constexpr3
; CHECK: ret i1 false
}
define i1 @PR16462_2() nounwind {
; CHECK-LABEL: @PR16462_2(
ret i1 icmp sgt (i32 sext (i16 trunc (i32 select (i1 icmp eq (ptr @a, ptr @d), i32 0, i32 1) to i16) to i32), i32 42)
%constexpr = select i1 icmp eq (ptr @a, ptr @d), i32 0, i32 1
%constexpr1 = trunc i32 %constexpr to i16
%constexpr2 = icmp sgt i16 %constexpr1, 42
ret i1 %constexpr2
; CHECK: ret i1 false
}

3
llvm/test/Transforms/InstCombine/cast.ll
View File

@ -1441,7 +1441,8 @@ define i64 @PR28745() {
; LE-LABEL: @PR28745(
; LE-NEXT: ret i64 0
;
%e = extractvalue { i32 } select (i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), { i32 } { i32 1 }, { i32 } zeroinitializer), 0
%s = select i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), { i32 } { i32 1 }, { i32 } zeroinitializer
%e = extractvalue { i32 } %s, 0
%b = zext i32 %e to i64
ret i64 %b
}

3
llvm/test/Transforms/InstCombine/pr28725.ll
View File

@ -3,7 +3,8 @@
define <2 x i16> @test1() {
entry:
%e = extractvalue %S select (i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), %S zeroinitializer, %S { i16 0, i32 1 }), 0
%s = select i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), %S zeroinitializer, %S { i16 0, i32 1 }
%e = extractvalue %S %s, 0
%b = insertelement <2 x i16> <i16 undef, i16 0>, i16 %e, i32 0
ret <2 x i16> %b
}

9
llvm/test/Transforms/InstSimplify/ConstProp/constant-expr.ll
View File

@ -84,12 +84,3 @@
; CHECK: pr9011_14 = constant i128 0
@pr9011_15 = constant i128 bitcast (<4 x i32> zeroinitializer to i128)
; CHECK: pr9011_15 = constant i128 0
@select = internal constant
i32 select (i1 icmp ult (i32 ptrtoint (ptr @X to i32),
i32 ptrtoint (ptr @Y to i32)),
i32 select (i1 icmp ult (i32 ptrtoint (ptr @X to i32),
i32 ptrtoint (ptr @Y to i32)),
i32 10, i32 20),
i32 30)
; CHECK: select = internal constant i32 select {{.*}} i32 10, i32 30

6
llvm/test/Transforms/InstSimplify/pr28725.ll
View File

@ -6,12 +6,14 @@
define <2 x i16> @test1() {
; CHECK-LABEL: @test1(
; CHECK-NEXT: entry:
; CHECK-NEXT: [[E:%.*]] = extractvalue [[S:%.*]] select (i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), [[S]] zeroinitializer, [[S]] { i16 0, i32 1 }), 0
; CHECK-NEXT: [[SEL:%.*]] = select i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), [[S:%.*]] zeroinitializer, [[S]] { i16 0, i32 1 }
; CHECK-NEXT: [[E:%.*]] = extractvalue [[S]] [[SEL]], 0
; CHECK-NEXT: [[B:%.*]] = insertelement <2 x i16> <i16 undef, i16 0>, i16 [[E]], i32 0
; CHECK-NEXT: ret <2 x i16> [[B]]
;
entry:
%e = extractvalue %S select (i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), %S zeroinitializer, %S { i16 0, i32 1 }), 0
%sel = select i1 icmp eq (i16 extractelement (<2 x i16> bitcast (<1 x i32> <i32 1> to <2 x i16>), i32 0), i16 0), %S zeroinitializer, %S { i16 0, i32 1 }
%e = extractvalue %S %sel, 0
%b = insertelement <2 x i16> <i16 undef, i16 0>, i16 %e, i32 0
ret <2 x i16> %b
}

5
llvm/unittests/Analysis/ValueTrackingTest.cpp
View File

@ -1157,10 +1157,7 @@ TEST(ValueTracking, canCreatePoisonOrUndef) {
{{false, false}, "call noundef i32 @g(i32 %x)"},
{{true, false}, "fcmp nnan oeq float %fx, %fy"},
{{false, false}, "fcmp oeq float %fx, %fy"},
{{true, false},
"ashr <4 x i32> %vx, select (i1 icmp sgt (i32 ptrtoint (i32* @s to "
"i32), i32 1), <4 x i32> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 "
"2, i32 3>)"},
{{true, false}, "ashr i32 %x, ptrtoint (i32* @s to i32)"},
{{false, false},
"call {i32, i1} @llvm.sadd.with.overflow.i32(i32 %x, i32 %y)"},
{{false, false},

2
llvm/unittests/IR/ConstantsTest.cpp
View File

@ -270,8 +270,6 @@ TEST(ConstantsTest, AsInstructionsTest) {
CHECK(ConstantExpr::getFPExtend(P1, DoubleTy),
"fpext float " P1STR " to double");
CHECK(ConstantExpr::getSelect(P3, P0, P4),
"select i1 " P3STR ", i32 " P0STR ", i32 " P4STR);
CHECK(ConstantExpr::getICmp(CmpInst::ICMP_EQ, P0, P4),
"icmp eq i32 " P0STR ", " P4STR);
CHECK(ConstantExpr::getFCmp(CmpInst::FCMP_ULT, P1, P5),