[llvm] [ctx_prof] test tool: generate ctxprof bistream from json (PR #100379)

[Teresa Johnson via llvm-commits]

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@@ -0,0 +1,39 @@
+; RUN: mkdir -p %t
+; RUN: llvm-ctxprof-util fromJSON --input %S/Inputs/empty.json -output %t/empty.bitstream
+; RUN: llvm-bcanalyzer --dump %t/empty.bitstream | FileCheck %s --check-prefix=EMPTY
+
+; RUN: llvm-ctxprof-util fromJSON --input %S/Inputs/valid.json -output %t/valid.bitstream
+; RUN: llvm-bcanalyzer --dump %t/valid.bitstream | FileCheck %s --check-prefix=VALID
+
+; EMPTY: <BLOCKINFO_BLOCK/>
+; EMPTY-NEXT: <Metadata NumWords=1 BlockCodeSize=2>
+; EMPTY-NEXT:   <Version op0=1/>
+; EMPTY-NEXT: </Metadata>
+
+; Note that uin64_t are printed as signed values by llvm-bcanalyzer
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teresajohnson wrote:

typo "uin64_t"

https://github.com/llvm/llvm-project/pull/100379