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-rw-r--r--llvm/docs/LangRef.rst8
-rw-r--r--llvm/include/llvm/Analysis/AliasAnalysis.h3
-rw-r--r--llvm/include/llvm/Bitcode/LLVMBitCodes.h1
-rw-r--r--llvm/include/llvm/IR/Attributes.h2
-rw-r--r--llvm/include/llvm/IR/CallSite.h9
-rw-r--r--llvm/include/llvm/IR/Function.h10
-rw-r--r--llvm/include/llvm/IR/Instructions.h18
-rw-r--r--llvm/lib/Analysis/BasicAliasAnalysis.cpp6
-rw-r--r--llvm/lib/AsmParser/LLLexer.cpp1
-rw-r--r--llvm/lib/AsmParser/LLParser.cpp67
-rw-r--r--llvm/lib/AsmParser/LLToken.h1
-rw-r--r--llvm/lib/Bitcode/Reader/BitcodeReader.cpp2
-rw-r--r--llvm/lib/Bitcode/Writer/BitcodeWriter.cpp2
-rw-r--r--llvm/lib/IR/Attributes.cpp8
-rw-r--r--llvm/lib/IR/Verifier.cpp8
-rw-r--r--llvm/test/Analysis/BasicAA/modref.ll45
-rw-r--r--llvm/test/Bitcode/attributes.ll11
17 files changed, 167 insertions, 35 deletions
diff --git a/llvm/docs/LangRef.rst b/llvm/docs/LangRef.rst
index a28ad104f13..48771c211c1 100644
--- a/llvm/docs/LangRef.rst
+++ b/llvm/docs/LangRef.rst
@@ -1326,6 +1326,14 @@ example:
On an argument, this attribute indicates that the function does not write
through this pointer argument, even though it may write to the memory that
the pointer points to.
+``argmemonly``
+ This attribute indicates that the only memory accesses inside function are
+ loads and stores from objects pointed to by its pointer-typed arguments,
+ with arbitrary offsets. Or in other words, all memory operations in the
+ function can refer to memory only using pointers based on its function
+ arguments.
+ Note that ``argmemonly`` can be used together with ``readonly`` attribute
+ in order to specify that function reads only from its arguments.
``returns_twice``
This attribute indicates that this function can return twice. The C
``setjmp`` is an example of such a function. The compiler disables
diff --git a/llvm/include/llvm/Analysis/AliasAnalysis.h b/llvm/include/llvm/Analysis/AliasAnalysis.h
index 57e44876f5c..36f8199a032 100644
--- a/llvm/include/llvm/Analysis/AliasAnalysis.h
+++ b/llvm/include/llvm/Analysis/AliasAnalysis.h
@@ -211,6 +211,8 @@ public:
/// (if it has any) are non-volatile loads from objects pointed to by its
/// pointer-typed arguments, with arbitrary offsets.
///
+ /// This property corresponds to the LLVM IR 'argmemonly' attribute combined
+ /// with 'readonly' attribute.
/// This property corresponds to the IntrReadArgMem LLVM intrinsic flag.
OnlyReadsArgumentPointees = ArgumentPointees | Ref,
@@ -218,6 +220,7 @@ public:
/// function (if it has any) are non-volatile loads and stores from objects
/// pointed to by its pointer-typed arguments, with arbitrary offsets.
///
+ /// This property corresponds to the LLVM IR 'argmemonly' attribute.
/// This property corresponds to the IntrReadWriteArgMem LLVM intrinsic flag.
OnlyAccessesArgumentPointees = ArgumentPointees | ModRef,
diff --git a/llvm/include/llvm/Bitcode/LLVMBitCodes.h b/llvm/include/llvm/Bitcode/LLVMBitCodes.h
index 605c4172dd8..7130ee75523 100644
--- a/llvm/include/llvm/Bitcode/LLVMBitCodes.h
+++ b/llvm/include/llvm/Bitcode/LLVMBitCodes.h
@@ -407,6 +407,7 @@ namespace bitc {
ATTR_KIND_DEREFERENCEABLE_OR_NULL = 42,
ATTR_KIND_CONVERGENT = 43,
ATTR_KIND_SAFESTACK = 44,
+ ATTR_KIND_ARGMEMONLY = 45
};
enum ComdatSelectionKindCodes {
diff --git a/llvm/include/llvm/IR/Attributes.h b/llvm/include/llvm/IR/Attributes.h
index 366bf709ab1..4d6d7da1fa5 100644
--- a/llvm/include/llvm/IR/Attributes.h
+++ b/llvm/include/llvm/IR/Attributes.h
@@ -98,6 +98,8 @@ public:
OptimizeNone, ///< Function must not be optimized.
ReadNone, ///< Function does not access memory
ReadOnly, ///< Function only reads from memory
+ ArgMemOnly, ///< Funciton can access memory only using pointers
+ ///< based on its arguments.
Returned, ///< Return value is always equal to this argument
ReturnsTwice, ///< Function can return twice
SExt, ///< Sign extended before/after call
diff --git a/llvm/include/llvm/IR/CallSite.h b/llvm/include/llvm/IR/CallSite.h
index dd2903e807e..2841781e8a9 100644
--- a/llvm/include/llvm/IR/CallSite.h
+++ b/llvm/include/llvm/IR/CallSite.h
@@ -290,6 +290,15 @@ public:
CALLSITE_DELEGATE_SETTER(setOnlyReadsMemory());
}
+ /// @brief Determine if the call can access memmory only using pointers based
+ /// on its arguments.
+ bool onlyAccessesArgMemory() const {
+ CALLSITE_DELEGATE_GETTER(onlyAccessesArgMemory());
+ }
+ void setOnlyAccessesArgMemory() {
+ CALLSITE_DELEGATE_SETTER(setOnlyAccessesArgMemory());
+ }
+
/// @brief Determine if the call cannot return.
bool doesNotReturn() const {
CALLSITE_DELEGATE_GETTER(doesNotReturn());
diff --git a/llvm/include/llvm/IR/Function.h b/llvm/include/llvm/IR/Function.h
index 02ea056de39..ec9f4cad094 100644
--- a/llvm/include/llvm/IR/Function.h
+++ b/llvm/include/llvm/IR/Function.h
@@ -293,6 +293,16 @@ public:
addFnAttr(Attribute::ReadOnly);
}
+ /// @brief Determine if the call can access memmory only using pointers based
+ /// on its arguments.
+ bool onlyAccessesArgMemory() const {
+ return AttributeSets.hasAttribute(AttributeSet::FunctionIndex,
+ Attribute::ArgMemOnly);
+ }
+ void setOnlyAccessesArgMemory() {
+ addFnAttr(Attribute::ArgMemOnly);
+ }
+
/// @brief Determine if the function cannot return.
bool doesNotReturn() const {
return AttributeSets.hasAttribute(AttributeSet::FunctionIndex,
diff --git a/llvm/include/llvm/IR/Instructions.h b/llvm/include/llvm/IR/Instructions.h
index 62723e44c0c..07d5f111b9e 100644
--- a/llvm/include/llvm/IR/Instructions.h
+++ b/llvm/include/llvm/IR/Instructions.h
@@ -1595,6 +1595,15 @@ public:
addAttribute(AttributeSet::FunctionIndex, Attribute::ReadOnly);
}
+ /// @brief Determine if the call can access memmory only using pointers based
+ /// on its arguments.
+ bool onlyAccessesArgMemory() const {
+ return hasFnAttr(Attribute::ArgMemOnly);
+ }
+ void setOnlyAccessesArgMemory() {
+ addAttribute(AttributeSet::FunctionIndex, Attribute::ArgMemOnly);
+ }
+
/// \brief Determine if the call cannot return.
bool doesNotReturn() const { return hasFnAttr(Attribute::NoReturn); }
void setDoesNotReturn() {
@@ -3364,6 +3373,15 @@ public:
addAttribute(AttributeSet::FunctionIndex, Attribute::ReadOnly);
}
+ /// @brief Determine if the call access memmory only using it's pointer
+ /// arguments.
+ bool onlyAccessesArgMemory() const {
+ return hasFnAttr(Attribute::ArgMemOnly);
+ }
+ void setOnlyAccessesArgMemory() {
+ addAttribute(AttributeSet::FunctionIndex, Attribute::ArgMemOnly);
+ }
+
/// \brief Determine if the call cannot return.
bool doesNotReturn() const { return hasFnAttr(Attribute::NoReturn); }
void setDoesNotReturn() {
diff --git a/llvm/lib/Analysis/BasicAliasAnalysis.cpp b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
index 8e812252fdf..68f766edb30 100644
--- a/llvm/lib/Analysis/BasicAliasAnalysis.cpp
+++ b/llvm/lib/Analysis/BasicAliasAnalysis.cpp
@@ -685,6 +685,9 @@ BasicAliasAnalysis::getModRefBehavior(ImmutableCallSite CS) {
if (CS.onlyReadsMemory())
Min = OnlyReadsMemory;
+ if (CS.onlyAccessesArgMemory())
+ Min = ModRefBehavior(Min & OnlyAccessesArgumentPointees);
+
// The AliasAnalysis base class has some smarts, lets use them.
return ModRefBehavior(AliasAnalysis::getModRefBehavior(CS) & Min);
}
@@ -710,6 +713,9 @@ BasicAliasAnalysis::getModRefBehavior(const Function *F) {
if (F->onlyReadsMemory())
Min = OnlyReadsMemory;
+ if (F->onlyAccessesArgMemory())
+ Min = ModRefBehavior(Min & OnlyAccessesArgumentPointees);
+
const TargetLibraryInfo &TLI =
getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
if (isMemsetPattern16(F, TLI))
diff --git a/llvm/lib/AsmParser/LLLexer.cpp b/llvm/lib/AsmParser/LLLexer.cpp
index 88f359d4fd5..5c4bab734b2 100644
--- a/llvm/lib/AsmParser/LLLexer.cpp
+++ b/llvm/lib/AsmParser/LLLexer.cpp
@@ -593,6 +593,7 @@ lltok::Kind LLLexer::LexIdentifier() {
KEYWORD(attributes);
KEYWORD(alwaysinline);
+ KEYWORD(argmemonly);
KEYWORD(builtin);
KEYWORD(byval);
KEYWORD(inalloca);
diff --git a/llvm/lib/AsmParser/LLParser.cpp b/llvm/lib/AsmParser/LLParser.cpp
index aa96d60ca0d..1c6e7bd18d0 100644
--- a/llvm/lib/AsmParser/LLParser.cpp
+++ b/llvm/lib/AsmParser/LLParser.cpp
@@ -946,35 +946,42 @@ bool LLParser::ParseFnAttributeValuePairs(AttrBuilder &B,
B.addStackAlignmentAttr(Alignment);
continue;
}
- case lltok::kw_alwaysinline: B.addAttribute(Attribute::AlwaysInline); break;
- case lltok::kw_builtin: B.addAttribute(Attribute::Builtin); break;
- case lltok::kw_cold: B.addAttribute(Attribute::Cold); break;
- case lltok::kw_convergent: B.addAttribute(Attribute::Convergent); break;
- case lltok::kw_inlinehint: B.addAttribute(Attribute::InlineHint); break;
- case lltok::kw_jumptable: B.addAttribute(Attribute::JumpTable); break;
- case lltok::kw_minsize: B.addAttribute(Attribute::MinSize); break;
- case lltok::kw_naked: B.addAttribute(Attribute::Naked); break;
- case lltok::kw_nobuiltin: B.addAttribute(Attribute::NoBuiltin); break;
- case lltok::kw_noduplicate: B.addAttribute(Attribute::NoDuplicate); break;
- case lltok::kw_noimplicitfloat: B.addAttribute(Attribute::NoImplicitFloat); break;
- case lltok::kw_noinline: B.addAttribute(Attribute::NoInline); break;
- case lltok::kw_nonlazybind: B.addAttribute(Attribute::NonLazyBind); break;
- case lltok::kw_noredzone: B.addAttribute(Attribute::NoRedZone); break;
- case lltok::kw_noreturn: B.addAttribute(Attribute::NoReturn); break;
- case lltok::kw_nounwind: B.addAttribute(Attribute::NoUnwind); break;
- case lltok::kw_optnone: B.addAttribute(Attribute::OptimizeNone); break;
- case lltok::kw_optsize: B.addAttribute(Attribute::OptimizeForSize); break;
- case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break;
- case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break;
- case lltok::kw_returns_twice: B.addAttribute(Attribute::ReturnsTwice); break;
- case lltok::kw_ssp: B.addAttribute(Attribute::StackProtect); break;
- case lltok::kw_sspreq: B.addAttribute(Attribute::StackProtectReq); break;
- case lltok::kw_sspstrong: B.addAttribute(Attribute::StackProtectStrong); break;
- case lltok::kw_safestack: B.addAttribute(Attribute::SafeStack); break;
- case lltok::kw_sanitize_address: B.addAttribute(Attribute::SanitizeAddress); break;
- case lltok::kw_sanitize_thread: B.addAttribute(Attribute::SanitizeThread); break;
- case lltok::kw_sanitize_memory: B.addAttribute(Attribute::SanitizeMemory); break;
- case lltok::kw_uwtable: B.addAttribute(Attribute::UWTable); break;
+ case lltok::kw_alwaysinline: B.addAttribute(Attribute::AlwaysInline); break;
+ case lltok::kw_argmemonly: B.addAttribute(Attribute::ArgMemOnly); break;
+ case lltok::kw_builtin: B.addAttribute(Attribute::Builtin); break;
+ case lltok::kw_cold: B.addAttribute(Attribute::Cold); break;
+ case lltok::kw_convergent: B.addAttribute(Attribute::Convergent); break;
+ case lltok::kw_inlinehint: B.addAttribute(Attribute::InlineHint); break;
+ case lltok::kw_jumptable: B.addAttribute(Attribute::JumpTable); break;
+ case lltok::kw_minsize: B.addAttribute(Attribute::MinSize); break;
+ case lltok::kw_naked: B.addAttribute(Attribute::Naked); break;
+ case lltok::kw_nobuiltin: B.addAttribute(Attribute::NoBuiltin); break;
+ case lltok::kw_noduplicate: B.addAttribute(Attribute::NoDuplicate); break;
+ case lltok::kw_noimplicitfloat:
+ B.addAttribute(Attribute::NoImplicitFloat); break;
+ case lltok::kw_noinline: B.addAttribute(Attribute::NoInline); break;
+ case lltok::kw_nonlazybind: B.addAttribute(Attribute::NonLazyBind); break;
+ case lltok::kw_noredzone: B.addAttribute(Attribute::NoRedZone); break;
+ case lltok::kw_noreturn: B.addAttribute(Attribute::NoReturn); break;
+ case lltok::kw_nounwind: B.addAttribute(Attribute::NoUnwind); break;
+ case lltok::kw_optnone: B.addAttribute(Attribute::OptimizeNone); break;
+ case lltok::kw_optsize: B.addAttribute(Attribute::OptimizeForSize); break;
+ case lltok::kw_readnone: B.addAttribute(Attribute::ReadNone); break;
+ case lltok::kw_readonly: B.addAttribute(Attribute::ReadOnly); break;
+ case lltok::kw_returns_twice:
+ B.addAttribute(Attribute::ReturnsTwice); break;
+ case lltok::kw_ssp: B.addAttribute(Attribute::StackProtect); break;
+ case lltok::kw_sspreq: B.addAttribute(Attribute::StackProtectReq); break;
+ case lltok::kw_sspstrong:
+ B.addAttribute(Attribute::StackProtectStrong); break;
+ case lltok::kw_safestack: B.addAttribute(Attribute::SafeStack); break;
+ case lltok::kw_sanitize_address:
+ B.addAttribute(Attribute::SanitizeAddress); break;
+ case lltok::kw_sanitize_thread:
+ B.addAttribute(Attribute::SanitizeThread); break;
+ case lltok::kw_sanitize_memory:
+ B.addAttribute(Attribute::SanitizeMemory); break;
+ case lltok::kw_uwtable: B.addAttribute(Attribute::UWTable); break;
// Error handling.
case lltok::kw_inreg:
@@ -1258,6 +1265,7 @@ bool LLParser::ParseOptionalParamAttrs(AttrBuilder &B) {
case lltok::kw_alignstack:
case lltok::kw_alwaysinline:
+ case lltok::kw_argmemonly:
case lltok::kw_builtin:
case lltok::kw_inlinehint:
case lltok::kw_jumptable:
@@ -1334,6 +1342,7 @@ bool LLParser::ParseOptionalReturnAttrs(AttrBuilder &B) {
case lltok::kw_alignstack:
case lltok::kw_alwaysinline:
+ case lltok::kw_argmemonly:
case lltok::kw_builtin:
case lltok::kw_cold:
case lltok::kw_inlinehint:
diff --git a/llvm/lib/AsmParser/LLToken.h b/llvm/lib/AsmParser/LLToken.h
index 2487d120813..691f085f0c9 100644
--- a/llvm/lib/AsmParser/LLToken.h
+++ b/llvm/lib/AsmParser/LLToken.h
@@ -100,6 +100,7 @@ namespace lltok {
// Attributes:
kw_attributes,
kw_alwaysinline,
+ kw_argmemonly,
kw_sanitize_address,
kw_builtin,
kw_byval,
diff --git a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
index 4695078303a..c04e8b9f1f3 100644
--- a/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
+++ b/llvm/lib/Bitcode/Reader/BitcodeReader.cpp
@@ -1090,6 +1090,8 @@ static Attribute::AttrKind getAttrFromCode(uint64_t Code) {
return Attribute::Alignment;
case bitc::ATTR_KIND_ALWAYS_INLINE:
return Attribute::AlwaysInline;
+ case bitc::ATTR_KIND_ARGMEMONLY:
+ return Attribute::ArgMemOnly;
case bitc::ATTR_KIND_BUILTIN:
return Attribute::Builtin;
case bitc::ATTR_KIND_BY_VAL:
diff --git a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
index 8a3ed18ffeb..1a70ba5ac12 100644
--- a/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
+++ b/llvm/lib/Bitcode/Writer/BitcodeWriter.cpp
@@ -162,6 +162,8 @@ static uint64_t getAttrKindEncoding(Attribute::AttrKind Kind) {
return bitc::ATTR_KIND_ALIGNMENT;
case Attribute::AlwaysInline:
return bitc::ATTR_KIND_ALWAYS_INLINE;
+ case Attribute::ArgMemOnly:
+ return bitc::ATTR_KIND_ARGMEMONLY;
case Attribute::Builtin:
return bitc::ATTR_KIND_BUILTIN;
case Attribute::ByVal:
diff --git a/llvm/lib/IR/Attributes.cpp b/llvm/lib/IR/Attributes.cpp
index c3032f4ffc7..546a98670a2 100644
--- a/llvm/lib/IR/Attributes.cpp
+++ b/llvm/lib/IR/Attributes.cpp
@@ -190,6 +190,8 @@ std::string Attribute::getAsString(bool InAttrGrp) const {
return "sanitize_address";
if (hasAttribute(Attribute::AlwaysInline))
return "alwaysinline";
+ if (hasAttribute(Attribute::ArgMemOnly))
+ return "argmemonly";
if (hasAttribute(Attribute::Builtin))
return "builtin";
if (hasAttribute(Attribute::ByVal))
@@ -447,6 +449,9 @@ uint64_t AttributeImpl::getAttrMask(Attribute::AttrKind Val) {
llvm_unreachable("dereferenceable_or_null attribute not supported in raw "
"format");
break;
+ case Attribute::ArgMemOnly:
+ llvm_unreachable("argmemonly attribute not supported in raw format");
+ break;
}
llvm_unreachable("Unsupported attribute type");
}
@@ -1356,7 +1361,8 @@ AttrBuilder &AttrBuilder::addRawValue(uint64_t Val) {
for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
I = Attribute::AttrKind(I + 1)) {
if (I == Attribute::Dereferenceable ||
- I == Attribute::DereferenceableOrNull)
+ I == Attribute::DereferenceableOrNull ||
+ I == Attribute::ArgMemOnly)
continue;
if (uint64_t A = (Val & AttributeImpl::getAttrMask(I))) {
Attrs[I] = true;
diff --git a/llvm/lib/IR/Verifier.cpp b/llvm/lib/IR/Verifier.cpp
index 647920f23da..2a0a4ff393e 100644
--- a/llvm/lib/IR/Verifier.cpp
+++ b/llvm/lib/IR/Verifier.cpp
@@ -1273,7 +1273,8 @@ void Verifier::VerifyAttributeTypes(AttributeSet Attrs, unsigned Idx,
I->getKindAsEnum() == Attribute::Cold ||
I->getKindAsEnum() == Attribute::OptimizeNone ||
I->getKindAsEnum() == Attribute::JumpTable ||
- I->getKindAsEnum() == Attribute::Convergent) {
+ I->getKindAsEnum() == Attribute::Convergent ||
+ I->getKindAsEnum() == Attribute::ArgMemOnly) {
if (!isFunction) {
CheckFailed("Attribute '" + I->getAsString() +
"' only applies to functions!", V);
@@ -1531,8 +1532,9 @@ void Verifier::VerifyStatepoint(ImmutableCallSite CS) {
const Instruction &CI = *CS.getInstruction();
- Assert(!CS.doesNotAccessMemory() && !CS.onlyReadsMemory(),
- "gc.statepoint must read and write memory to preserve "
+ Assert(!CS.doesNotAccessMemory() && !CS.onlyReadsMemory() &&
+ !CS.onlyAccessesArgMemory(),
+ "gc.statepoint must read and write all memory to preserve "
"reordering restrictions required by safepoint semantics",
&CI);
diff --git a/llvm/test/Analysis/BasicAA/modref.ll b/llvm/test/Analysis/BasicAA/modref.ll
index e124d6cbe20..3084f809c37 100644
--- a/llvm/test/Analysis/BasicAA/modref.ll
+++ b/llvm/test/Analysis/BasicAA/modref.ll
@@ -145,6 +145,51 @@ entry:
; CHECK: load i32, i32*
}
+;; Check that aa correctly handles functions marked with argmemonly
+;; attribute.
+declare i32 @func_argmemonly(i32 * %P) argmemonly
+
+;; Can not remove redundant load, function may write to it.
+; CHECK-LABEL: @test8(
+define i32 @test8(i32 *%P) {
+ %V1 = load i32, i32* %P
+ call i32 @func_argmemonly(i32* %P)
+ %V2 = load i32, i32* %P
+ %Diff = sub i32 %V1, %V2
+ ret i32 %Diff
+ ; CHECK: load
+ ; CHECK: load
+ ; CHECK: sub
+ ; CHECK: ret i32 %Diff
+}
+
+;; In this case load can be removed, function clobbers only %P2.
+; CHECK-LABEL: @test9(
+define i32 @test9(i32* %P, i32* noalias %P2) {
+ %V1 = load i32, i32* %P
+ call i32 @func_argmemonly(i32* %P2)
+ %V2 = load i32, i32* %P
+ %Diff = sub i32 %V1, %V2
+ ret i32 %Diff
+ ; CHECK-NOT: load
+ ; CHECK: ret i32 0
+}
+
+;; In this case load can *not* be removed. Function clobers only %P2 but it may
+;; alias with %P.
+; CHECK-LABEL: @test10(
+define i32 @test10(i32* %P, i32* %P2) {
+ %V1 = load i32, i32* %P
+ call i32 @func_argmemonly(i32* %P2)
+ %V2 = load i32, i32* %P
+ %Diff = sub i32 %V1, %V2
+ ret i32 %Diff
+ ; CHECK: load
+ ; CHECK: load
+ ; CHECK: sub
+ ; CHECK: ret i32 %Diff
+}
+
declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) nounwind
declare void @llvm.memset.p0i8.i8(i8* nocapture, i8, i8, i32, i1) nounwind
declare void @llvm.memcpy.p0i8.p0i8.i8(i8* nocapture, i8* nocapture, i8, i32, i1) nounwind
diff --git a/llvm/test/Bitcode/attributes.ll b/llvm/test/Bitcode/attributes.ll
index cae6a2e01e6..a0bc66642f7 100644
--- a/llvm/test/Bitcode/attributes.ll
+++ b/llvm/test/Bitcode/attributes.ll
@@ -204,7 +204,7 @@ define void @f34()
; CHECK: define void @f34()
{
call void @nobuiltin() nobuiltin
-; CHECK: call void @nobuiltin() #26
+; CHECK: call void @nobuiltin() #27
ret void;
}
@@ -256,6 +256,12 @@ define void @f43() convergent {
ret void
}
+define void @f44() argmemonly
+; CHECK: define void @f44() #26
+{
+ ret void;
+}
+
; CHECK: attributes #0 = { noreturn }
; CHECK: attributes #1 = { nounwind }
; CHECK: attributes #2 = { readnone }
@@ -282,4 +288,5 @@ define void @f43() convergent {
; CHECK: attributes #23 = { noinline optnone }
; CHECK: attributes #24 = { jumptable }
; CHECK: attributes #25 = { convergent }
-; CHECK: attributes #26 = { nobuiltin }
+; CHECK: attributes #26 = { argmemonly }
+; CHECK: attributes #27 = { nobuiltin }
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