[llvm] [openmp] [clang] ReworkCtorDtor (PR #71739)
via cfe-commits
cfe-commits at lists.llvm.org
Wed Nov 8 13:49:43 PST 2023
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang
Author: Joseph Huber (jhuber6)
<details>
<summary>Changes</summary>
- [NVPTX] Allow the ctor/dtor lowering pass to emit kernels
- [OpenMP] Rework handling of global ctor/dtors in OpenMP
---
Patch is 57.79 KiB, truncated to 20.00 KiB below, full version: https://github.com/llvm/llvm-project/pull/71739.diff
21 Files Affected:
- (modified) clang/lib/CodeGen/CGDeclCXX.cpp (+10-4)
- (modified) clang/lib/CodeGen/CGOpenMPRuntime.cpp (-130)
- (modified) clang/lib/CodeGen/CGOpenMPRuntime.h (-8)
- (modified) clang/lib/CodeGen/CodeGenFunction.h (+5)
- (modified) clang/lib/CodeGen/CodeGenModule.h (+7-7)
- (modified) clang/lib/CodeGen/ItaniumCXXABI.cpp (+7)
- (modified) clang/test/Headers/amdgcn_openmp_device_math_constexpr.cpp (+34-14)
- (modified) clang/test/OpenMP/amdgcn_target_global_constructor.cpp (+35-10)
- (modified) clang/test/OpenMP/declare_target_codegen.cpp (-1)
- (modified) clang/test/OpenMP/nvptx_declare_target_var_ctor_dtor_codegen.cpp (+4-31)
- (modified) llvm/include/llvm/Frontend/OpenMP/OMPIRBuilder.h (-4)
- (modified) llvm/lib/Target/NVPTX/NVPTXAsmPrinter.cpp (+1-1)
- (modified) llvm/lib/Target/NVPTX/NVPTXCtorDtorLowering.cpp (+155-7)
- (modified) llvm/test/CodeGen/NVPTX/lower-ctor-dtor.ll (+58)
- (modified) openmp/libomptarget/plugins-nextgen/amdgpu/src/rtl.cpp (+52)
- (modified) openmp/libomptarget/plugins-nextgen/common/PluginInterface/GlobalHandler.cpp (+22)
- (modified) openmp/libomptarget/plugins-nextgen/common/PluginInterface/GlobalHandler.h (+4)
- (modified) openmp/libomptarget/plugins-nextgen/common/PluginInterface/PluginInterface.cpp (+7)
- (modified) openmp/libomptarget/plugins-nextgen/common/PluginInterface/PluginInterface.h (+14)
- (modified) openmp/libomptarget/plugins-nextgen/cuda/src/rtl.cpp (+109)
- (modified) openmp/libomptarget/src/rtl.cpp (+8-1)
``````````diff
diff --git a/clang/lib/CodeGen/CGDeclCXX.cpp b/clang/lib/CodeGen/CGDeclCXX.cpp
index 3fa28b343663f61..d816aa8554df8bb 100644
--- a/clang/lib/CodeGen/CGDeclCXX.cpp
+++ b/clang/lib/CodeGen/CGDeclCXX.cpp
@@ -22,6 +22,7 @@
#include "llvm/IR/Intrinsics.h"
#include "llvm/IR/MDBuilder.h"
#include "llvm/Support/Path.h"
+#include "llvm/Transforms/Utils/ModuleUtils.h"
using namespace clang;
using namespace CodeGen;
@@ -327,6 +328,15 @@ void CodeGenFunction::registerGlobalDtorWithAtExit(const VarDecl &VD,
registerGlobalDtorWithAtExit(dtorStub);
}
+/// Register a global destructor using the C atexit runtime function.
+void CodeGenFunction::registerGlobalDtorWithLLVM(const VarDecl &VD,
+ llvm::FunctionCallee Dtor,
+ llvm::Constant *Addr) {
+ // Create a function which calls the destructor.
+ llvm::Function *dtorStub = createAtExitStub(VD, Dtor, Addr);
+ CGM.AddGlobalDtor(dtorStub);
+}
+
void CodeGenFunction::registerGlobalDtorWithAtExit(llvm::Constant *dtorStub) {
// extern "C" int atexit(void (*f)(void));
assert(dtorStub->getType() ==
@@ -519,10 +529,6 @@ CodeGenModule::EmitCXXGlobalVarDeclInitFunc(const VarDecl *D,
D->hasAttr<CUDASharedAttr>()))
return;
- if (getLangOpts().OpenMP &&
- getOpenMPRuntime().emitDeclareTargetVarDefinition(D, Addr, PerformInit))
- return;
-
// Check if we've already initialized this decl.
auto I = DelayedCXXInitPosition.find(D);
if (I != DelayedCXXInitPosition.end() && I->second == ~0U)
diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.cpp b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
index a8e1150e44566b8..d2be8141a3a4b31 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntime.cpp
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.cpp
@@ -1747,136 +1747,6 @@ llvm::Function *CGOpenMPRuntime::emitThreadPrivateVarDefinition(
return nullptr;
}
-bool CGOpenMPRuntime::emitDeclareTargetVarDefinition(const VarDecl *VD,
- llvm::GlobalVariable *Addr,
- bool PerformInit) {
- if (CGM.getLangOpts().OMPTargetTriples.empty() &&
- !CGM.getLangOpts().OpenMPIsTargetDevice)
- return false;
- std::optional<OMPDeclareTargetDeclAttr::MapTypeTy> Res =
- OMPDeclareTargetDeclAttr::isDeclareTargetDeclaration(VD);
- if (!Res || *Res == OMPDeclareTargetDeclAttr::MT_Link ||
- ((*Res == OMPDeclareTargetDeclAttr::MT_To ||
- *Res == OMPDeclareTargetDeclAttr::MT_Enter) &&
- HasRequiresUnifiedSharedMemory))
- return CGM.getLangOpts().OpenMPIsTargetDevice;
- VD = VD->getDefinition(CGM.getContext());
- assert(VD && "Unknown VarDecl");
-
- if (!DeclareTargetWithDefinition.insert(CGM.getMangledName(VD)).second)
- return CGM.getLangOpts().OpenMPIsTargetDevice;
-
- QualType ASTTy = VD->getType();
- SourceLocation Loc = VD->getCanonicalDecl()->getBeginLoc();
-
- // Produce the unique prefix to identify the new target regions. We use
- // the source location of the variable declaration which we know to not
- // conflict with any target region.
- llvm::TargetRegionEntryInfo EntryInfo =
- getEntryInfoFromPresumedLoc(CGM, OMPBuilder, Loc, VD->getName());
- SmallString<128> Buffer, Out;
- OMPBuilder.OffloadInfoManager.getTargetRegionEntryFnName(Buffer, EntryInfo);
-
- const Expr *Init = VD->getAnyInitializer();
- if (CGM.getLangOpts().CPlusPlus && PerformInit) {
- llvm::Constant *Ctor;
- llvm::Constant *ID;
- if (CGM.getLangOpts().OpenMPIsTargetDevice) {
- // Generate function that re-emits the declaration's initializer into
- // the threadprivate copy of the variable VD
- CodeGenFunction CtorCGF(CGM);
-
- const CGFunctionInfo &FI = CGM.getTypes().arrangeNullaryFunction();
- llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FI);
- llvm::Function *Fn = CGM.CreateGlobalInitOrCleanUpFunction(
- FTy, Twine(Buffer, "_ctor"), FI, Loc, false,
- llvm::GlobalValue::WeakODRLinkage);
- Fn->setVisibility(llvm::GlobalValue::ProtectedVisibility);
- if (CGM.getTriple().isAMDGCN())
- Fn->setCallingConv(llvm::CallingConv::AMDGPU_KERNEL);
- auto NL = ApplyDebugLocation::CreateEmpty(CtorCGF);
- CtorCGF.StartFunction(GlobalDecl(), CGM.getContext().VoidTy, Fn, FI,
- FunctionArgList(), Loc, Loc);
- auto AL = ApplyDebugLocation::CreateArtificial(CtorCGF);
- llvm::Constant *AddrInAS0 = Addr;
- if (Addr->getAddressSpace() != 0)
- AddrInAS0 = llvm::ConstantExpr::getAddrSpaceCast(
- Addr, llvm::PointerType::get(CGM.getLLVMContext(), 0));
- CtorCGF.EmitAnyExprToMem(Init,
- Address(AddrInAS0, Addr->getValueType(),
- CGM.getContext().getDeclAlign(VD)),
- Init->getType().getQualifiers(),
- /*IsInitializer=*/true);
- CtorCGF.FinishFunction();
- Ctor = Fn;
- ID = Fn;
- } else {
- Ctor = new llvm::GlobalVariable(
- CGM.getModule(), CGM.Int8Ty, /*isConstant=*/true,
- llvm::GlobalValue::PrivateLinkage,
- llvm::Constant::getNullValue(CGM.Int8Ty), Twine(Buffer, "_ctor"));
- ID = Ctor;
- }
-
- // Register the information for the entry associated with the constructor.
- Out.clear();
- auto CtorEntryInfo = EntryInfo;
- CtorEntryInfo.ParentName = Twine(Buffer, "_ctor").toStringRef(Out);
- OMPBuilder.OffloadInfoManager.registerTargetRegionEntryInfo(
- CtorEntryInfo, Ctor, ID,
- llvm::OffloadEntriesInfoManager::OMPTargetRegionEntryCtor);
- }
- if (VD->getType().isDestructedType() != QualType::DK_none) {
- llvm::Constant *Dtor;
- llvm::Constant *ID;
- if (CGM.getLangOpts().OpenMPIsTargetDevice) {
- // Generate function that emits destructor call for the threadprivate
- // copy of the variable VD
- CodeGenFunction DtorCGF(CGM);
-
- const CGFunctionInfo &FI = CGM.getTypes().arrangeNullaryFunction();
- llvm::FunctionType *FTy = CGM.getTypes().GetFunctionType(FI);
- llvm::Function *Fn = CGM.CreateGlobalInitOrCleanUpFunction(
- FTy, Twine(Buffer, "_dtor"), FI, Loc, false,
- llvm::GlobalValue::WeakODRLinkage);
- Fn->setVisibility(llvm::GlobalValue::ProtectedVisibility);
- if (CGM.getTriple().isAMDGCN())
- Fn->setCallingConv(llvm::CallingConv::AMDGPU_KERNEL);
- auto NL = ApplyDebugLocation::CreateEmpty(DtorCGF);
- DtorCGF.StartFunction(GlobalDecl(), CGM.getContext().VoidTy, Fn, FI,
- FunctionArgList(), Loc, Loc);
- // Create a scope with an artificial location for the body of this
- // function.
- auto AL = ApplyDebugLocation::CreateArtificial(DtorCGF);
- llvm::Constant *AddrInAS0 = Addr;
- if (Addr->getAddressSpace() != 0)
- AddrInAS0 = llvm::ConstantExpr::getAddrSpaceCast(
- Addr, llvm::PointerType::get(CGM.getLLVMContext(), 0));
- DtorCGF.emitDestroy(Address(AddrInAS0, Addr->getValueType(),
- CGM.getContext().getDeclAlign(VD)),
- ASTTy, DtorCGF.getDestroyer(ASTTy.isDestructedType()),
- DtorCGF.needsEHCleanup(ASTTy.isDestructedType()));
- DtorCGF.FinishFunction();
- Dtor = Fn;
- ID = Fn;
- } else {
- Dtor = new llvm::GlobalVariable(
- CGM.getModule(), CGM.Int8Ty, /*isConstant=*/true,
- llvm::GlobalValue::PrivateLinkage,
- llvm::Constant::getNullValue(CGM.Int8Ty), Twine(Buffer, "_dtor"));
- ID = Dtor;
- }
- // Register the information for the entry associated with the destructor.
- Out.clear();
- auto DtorEntryInfo = EntryInfo;
- DtorEntryInfo.ParentName = Twine(Buffer, "_dtor").toStringRef(Out);
- OMPBuilder.OffloadInfoManager.registerTargetRegionEntryInfo(
- DtorEntryInfo, Dtor, ID,
- llvm::OffloadEntriesInfoManager::OMPTargetRegionEntryDtor);
- }
- return CGM.getLangOpts().OpenMPIsTargetDevice;
-}
-
void CGOpenMPRuntime::emitDeclareTargetFunction(const FunctionDecl *FD,
llvm::GlobalValue *GV) {
std::optional<OMPDeclareTargetDeclAttr *> ActiveAttr =
diff --git a/clang/lib/CodeGen/CGOpenMPRuntime.h b/clang/lib/CodeGen/CGOpenMPRuntime.h
index 0c4ad46e881b9c5..b01b39abd1606af 100644
--- a/clang/lib/CodeGen/CGOpenMPRuntime.h
+++ b/clang/lib/CodeGen/CGOpenMPRuntime.h
@@ -1089,14 +1089,6 @@ class CGOpenMPRuntime {
SourceLocation Loc, bool PerformInit,
CodeGenFunction *CGF = nullptr);
- /// Emit a code for initialization of declare target variable.
- /// \param VD Declare target variable.
- /// \param Addr Address of the global variable \a VD.
- /// \param PerformInit true if initialization expression is not constant.
- virtual bool emitDeclareTargetVarDefinition(const VarDecl *VD,
- llvm::GlobalVariable *Addr,
- bool PerformInit);
-
/// Emit code for handling declare target functions in the runtime.
/// \param FD Declare target function.
/// \param Addr Address of the global \a FD.
diff --git a/clang/lib/CodeGen/CodeGenFunction.h b/clang/lib/CodeGen/CodeGenFunction.h
index 42f94c9b540191e..f25e03b02762628 100644
--- a/clang/lib/CodeGen/CodeGenFunction.h
+++ b/clang/lib/CodeGen/CodeGenFunction.h
@@ -4527,6 +4527,11 @@ class CodeGenFunction : public CodeGenTypeCache {
void registerGlobalDtorWithAtExit(const VarDecl &D, llvm::FunctionCallee fn,
llvm::Constant *addr);
+ /// Registers the dtor using 'llvm.global_dtors' for platforms that do not
+ /// support an 'atexit()' function.
+ void registerGlobalDtorWithLLVM(const VarDecl &D, llvm::FunctionCallee fn,
+ llvm::Constant *addr);
+
/// Call atexit() with function dtorStub.
void registerGlobalDtorWithAtExit(llvm::Constant *dtorStub);
diff --git a/clang/lib/CodeGen/CodeGenModule.h b/clang/lib/CodeGen/CodeGenModule.h
index 793861f23b15f95..e81edc979c208b1 100644
--- a/clang/lib/CodeGen/CodeGenModule.h
+++ b/clang/lib/CodeGen/CodeGenModule.h
@@ -1570,6 +1570,13 @@ class CodeGenModule : public CodeGenTypeCache {
const VarDecl *D,
ForDefinition_t IsForDefinition = NotForDefinition);
+ // FIXME: Hardcoding priority here is gross.
+ void AddGlobalCtor(llvm::Function *Ctor, int Priority = 65535,
+ unsigned LexOrder = ~0U,
+ llvm::Constant *AssociatedData = nullptr);
+ void AddGlobalDtor(llvm::Function *Dtor, int Priority = 65535,
+ bool IsDtorAttrFunc = false);
+
private:
llvm::Constant *GetOrCreateLLVMFunction(
StringRef MangledName, llvm::Type *Ty, GlobalDecl D, bool ForVTable,
@@ -1641,13 +1648,6 @@ class CodeGenModule : public CodeGenTypeCache {
void EmitPointerToInitFunc(const VarDecl *VD, llvm::GlobalVariable *Addr,
llvm::Function *InitFunc, InitSegAttr *ISA);
- // FIXME: Hardcoding priority here is gross.
- void AddGlobalCtor(llvm::Function *Ctor, int Priority = 65535,
- unsigned LexOrder = ~0U,
- llvm::Constant *AssociatedData = nullptr);
- void AddGlobalDtor(llvm::Function *Dtor, int Priority = 65535,
- bool IsDtorAttrFunc = false);
-
/// EmitCtorList - Generates a global array of functions and priorities using
/// the given list and name. This array will have appending linkage and is
/// suitable for use as a LLVM constructor or destructor array. Clears Fns.
diff --git a/clang/lib/CodeGen/ItaniumCXXABI.cpp b/clang/lib/CodeGen/ItaniumCXXABI.cpp
index 89a2127f3761af4..af022002cd5702a 100644
--- a/clang/lib/CodeGen/ItaniumCXXABI.cpp
+++ b/clang/lib/CodeGen/ItaniumCXXABI.cpp
@@ -2794,6 +2794,13 @@ void ItaniumCXXABI::registerGlobalDtor(CodeGenFunction &CGF, const VarDecl &D,
if (D.isNoDestroy(CGM.getContext()))
return;
+ // OpenMP offloading supports C++ constructors and destructors but we do not
+ // always have 'atexit' available. Instead lower these to use the LLVM global
+ // destructors which we can handle directly in the runtime.
+ if (CGM.getLangOpts().OpenMP && CGM.getLangOpts().OpenMPIsTargetDevice &&
+ (CGM.getTriple().isAMDGPU() || CGM.getTriple().isNVPTX()))
+ return CGF.registerGlobalDtorWithLLVM(D, dtor, addr);
+
// emitGlobalDtorWithCXAAtExit will emit a call to either __cxa_thread_atexit
// or __cxa_atexit depending on whether this VarDecl is a thread-local storage
// or not. CXAAtExit controls only __cxa_atexit, so use it if it is enabled.
diff --git a/clang/test/Headers/amdgcn_openmp_device_math_constexpr.cpp b/clang/test/Headers/amdgcn_openmp_device_math_constexpr.cpp
index a5bb949ccaad3ac..0fdc02edc15086f 100644
--- a/clang/test/Headers/amdgcn_openmp_device_math_constexpr.cpp
+++ b/clang/test/Headers/amdgcn_openmp_device_math_constexpr.cpp
@@ -35,7 +35,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
#pragma omp end declare target
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_fabsf_f32_l14_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init
// CHECK-SAME: () #[[ATTR0:[0-9]+]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -49,7 +49,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_fabs_f32_l15_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.1
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -69,7 +69,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_sinf_f32_l17_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.2
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -83,7 +83,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_sin_f32_l18_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.3
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -103,7 +103,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_cosf_f32_l20_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.4
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -117,7 +117,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_cos_f32_l21_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.5
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -137,7 +137,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_fmaf_f32_l23_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.6
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -159,7 +159,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_fma_f32_l24_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.7
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -195,7 +195,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_min_f32_l27_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.8
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -213,7 +213,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_max_f32_l28_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.9
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -231,7 +231,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_fmin_f32_l30_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.10
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[CALL:%.*]] = call noundef float @_Z4fminff(float noundef 2.000000e+00, float noundef -4.000000e+00) #[[ATTR4:[0-9]+]]
@@ -239,7 +239,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_fmax_f32_l31_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.11
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[CALL:%.*]] = call noundef float @_Z4fmaxff(float noundef 2.000000e+00, float noundef -4.000000e+00) #[[ATTR4]]
@@ -247,7 +247,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_fminf_f32_l33_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.12
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -265,7 +265,7 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: ret void
//
//
-// CHECK-LABEL: define {{[^@]+}}@{{__omp_offloading_[0-9a-z]+_[0-9a-z]+}}_constexpr_fmaxf_f32_l34_ctor
+// CHECK-LABEL: define {{[^@]+}}@__cxx_global_var_init.13
// CHECK-SAME: () #[[ATTR0]] {
// CHECK-NEXT: entry:
// CHECK-NEXT: [[RETVAL_I:%.*]] = alloca float, align 4, addrspace(5)
@@ -282,3 +282,23 @@ const float constexpr_fmaxf_f32 = fmaxf(2.0f, -4.0f);
// CHECK-NEXT: store float [[TMP2]], ptr addrspacecast (ptr addrspace(1) @_ZL19constexpr_fmaxf_f32 to ptr), align 4
// CHECK-NEXT: ret void
//
+//
+// CHECK-LABEL: define {{[^@]+}}@_GLOBAL__sub_I_amdgcn_openmp_device_math_constexpr.cpp
+// CHECK-SAME: () #[[ATTR0]] {
+// CHECK-NEXT: entry:
+// CHECK-NEXT: call void @__cxx_global_var_init()
+// CHECK-NEXT: call void @__cxx_global_var_init.1()
+// CHECK-NEXT: call void @__cxx_global_var_init.2()
+// CHECK-NEXT: call void @__cxx_global_var_init.3()
+// CHECK-NEXT: call void @__cxx_global_var_init.4()
+// CHECK-NEXT: call void @__cxx_global_var_init.5()
+// CHECK-NEXT: call void @__cxx_global_var_init.6()
+// CHECK-NEXT: call void @__cxx_global_var_init.7()
+// CHECK-NEXT: call void @__cxx_global_var_init.8()
+// CHECK-NEXT: call void @__cxx_global_var_init.9()
+// CHECK-NEXT: call void @__cxx_global_var_init.10()
+// CHECK-NEXT: call void @__cxx_global_var_init.11()
+// CHECK-NEXT: call void @__cxx_global_var_init.12()
+// CHECK-NEXT: call void @__cxx_global_var_init.13()
+// CHECK-NEXT: ret void
+//
diff --git a/clang/test/OpenMP/amdgcn_target_global_constructor.cpp b/clang/test/OpenMP/amdgcn_target_global_constructor.cpp
index ff5a3ba2b95d267..c8f150431c7fded 100644
--- a/clang/test/OpenMP/amdgcn_target_global_constructor.cpp
+++ b/clang/test/OpenMP/amdgcn_target_global_constructor.cpp
@@ -1,4 +1,4 @@
-// NOTE: Asser...
[truncated]
``````````
</details>
https://github.com/llvm/llvm-project/pull/71739
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