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-rw-r--r--llvm/test/tools/llvm-profdata/sample-profile-basic.test4
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/test/tools/llvm-profdata/sample-profile-basic.test b/llvm/test/tools/llvm-profdata/sample-profile-basic.test
index 0651c513e96..9981d4204c4 100644
--- a/llvm/test/tools/llvm-profdata/sample-profile-basic.test
+++ b/llvm/test/tools/llvm-profdata/sample-profile-basic.test
@@ -28,3 +28,7 @@ RUN: llvm-profdata merge --sample --text %p/Inputs/sample-profile.proftext %t-bi
MERGE1: main:368038:0
MERGE1: 9: 4128 _Z3fooi:1262 _Z3bari:2942
MERGE1: _Z3fooi:15422:1220
+
+5- Detect invalid text encoding (e.g. instrumentation profile text format).
+RUN: not llvm-profdata show --sample %p/Inputs/foo3bar3-1.proftext 2>&1 | FileCheck %s --check-prefix=BADTEXT
+BADTEXT: error: {{.+}}: Unrecognized sample profile encoding format
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