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[SYCL] Fix SYCL Kernel Body Check #5546

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Merged
bader merged 4 commits into from
Feb 14, 2022
Merged

[SYCL] Fix SYCL Kernel Body Check #5546

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22d92a9
[SYCL] Fix SYCL Kernel Body Check
elizabethandrews Feb 11, 2022
79bf8d4
Correct comment and rename variable
elizabethandrews Feb 11, 2022
2eaf47f
Revert changes and add check for attribute
elizabethandrews Feb 11, 2022
c523c9b
Remove extra space
elizabethandrews Feb 11, 2022
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3 changes: 2 additions & 1 deletion clang/lib/Sema/SemaSYCL.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -823,7 +823,8 @@ class SingleDeviceFunctionTracker {
// false-positives.
if (isSYCLKernelBodyFunction(CurrentDecl)) {
// This is a direct callee of the kernel.
if (CallStack.size() == 1) {
if (CallStack.size() == 1 &&
CallStack.back()->hasAttr<SYCLKernelAttr>()) {
assert(!KernelBody && "inconsistent call graph - only one kernel body "
"function can be called");
KernelBody = CurrentDecl;
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21 changes: 21 additions & 0 deletions clang/test/SemaSYCL/non-kernel-functor.cpp
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Original file line number Diff line number Diff line change
@@ -0,0 +1,21 @@
// RUN: %clang_cc1 -fsycl-is-device -triple spir64-unknown-unknown -verify %s

// Test to verify that non-kernel functors are not processed as SYCL kernel
// functors

// expected-no-diagnostics
class First {
public:
void operator()() { return; }
};

class Second {
public:
First operator()() { return First(); }
};

SYCL_EXTERNAL
void foo() {
Second NonKernelFunctorObj;
NonKernelFunctorObj()();
}