f05d2e8a39
The "uniform-work-group-size" function attribute previously took a string value of "true" or "false". Since presence alone can convey the "true" semantics and absence can convey "false", the value is unnecessary. This patch converts it to a valueless string attribute: presence indicates true, absence indicates false. For backward compatibility, auto-upgrade logic is added in both UpgradeAttributes (bitcode) and UpgradeFunctionAttributes: if the old value is "true", the attribute is kept without a value; if "false", the attribute is removed.
The tests in this directory check that basic KernelInfoPrinter functionality behaves reasonably for LLVM IR produced by Clang OpenMP codegen.
So that these tests are straightforward to maintain and faithfully represent Clang OpenMP codegen, do not tweak or reduce the LLVM IR in them. Other tests more exhaustively check KernelInfoPrinter features using reduced LLVM IR.
The LLVM IR in each test file $TEST can be regenerated as follows in the case
that Clang OpenMP codegen changes or it becomes desirable to adjust the source
OpenMP program below. First, remove the existing LLVM IR from $TEST. Then,
where $TARGET (e.g., nvptx64-nvidia-cuda-sm_70 or amdgcn-amd-amdhsa-gfx906)
depends on $TEST:
$ cd /tmp
$ cat test.c
#pragma omp declare target
void f();
void g() {
int i;
int a[2];
f();
g();
}
#pragma omp end declare target
void h(int i) {
#pragma omp target map(tofrom:i)
{
int i;
int a[2];
f();
g();
}
}
$ clang -g -fopenmp --offload-arch=native -save-temps -c test.c
$ llvm-dis test-openmp-$TARGET.bc
$ cat test-openmp-$TARGET.ll >> $TEST