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Tests for instrumentation profile bad encoding.
1- Detect invalid count
RUN: not llvm-profdata show %p/Inputs/invalid-count-later.proftext 2>&1 | FileCheck %s --check-prefix=INVALID-COUNT-LATER
RUN: not llvm-profdata merge %p/Inputs/invalid-count-later.proftext %p/Inputs/invalid-count-later.profdata -o %t.out 2>&1 | FileCheck %s --check-prefix=INVALID-COUNT-LATER
INVALID-COUNT-LATER: error: {{.*}}invalid-count-later.proftext: Malformed instrumentation profile data
2- Detect bad hash
RUN: not llvm-profdata show %p/Inputs/bad-hash.proftext 2>&1 | FileCheck %s --check-prefix=BAD-HASH
RUN: not llvm-profdata merge %p/Inputs/bad-hash.proftext %p/Inputs/bad-hash.proftext -o %t.out 2>&1 | FileCheck %s --check-prefix=BAD-HASH
BAD-HASH: error: {{.*}}bad-hash.proftext: Malformed instrumentation profile data
3- Detect no counts
RUN: not llvm-profdata show %p/Inputs/no-counts.proftext 2>&1 | FileCheck %s --check-prefix=NO-COUNTS
NO-COUNTS: error: {{.*}}no-counts.proftext: Malformed instrumentation profile data
4- Detect binary input
RUN: echo -n $'\xff\xe5\xd0\xb1\xf4\c9\x94\xa8' > %t.bin
RUN: not llvm-profdata show %t.bin 2>&1 | FileCheck %s --check-prefix=BINARY
BINARY: error: {{.+}}: Unrecognized instrumentation profile encoding format
BINARY: Perhaps you forgot to use the -sample option?
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