1 files changed, 38 insertions, 0 deletions
diff --git a/llvm/test/LTO/diagnostic-handler-remarks.ll b/llvm/test/LTO/diagnostic-handler-remarks.ll
new file mode 100644
index 00000000000..bc3ce2541e1
--- /dev/null
+++ b/llvm/test/LTO/diagnostic-handler-remarks.ll
@@ -0,0 +1,38 @@
+; RUN: llvm-as < %s >%t.bc
+; PR21108: Diagnostic handlers get pass remarks, even if they're not enabled.
+
+; Confirm that there are -pass-remarks.
+; RUN: llvm-lto -pass-remarks=inline \
+; RUN:          -exported-symbol _main -o %t.o %t.bc 2>&1 | \
+; RUN:     FileCheck %s -allow-empty -check-prefix=REMARKS
+; RUN: llvm-nm %t.o | FileCheck %s -check-prefix NM
+
+; RUN: llvm-lto -pass-remarks=inline -use-diagnostic-handler \
+; RUN:         -exported-symbol _main -o %t.o %t.bc 2>&1 | \
+; RUN:     FileCheck %s -allow-empty -check-prefix=REMARKS
+; RUN: llvm-nm %t.o | FileCheck %s -check-prefix NM
+
+; Confirm that -pass-remarks are not printed by default.
+; RUN: llvm-lto \
+; RUN:         -exported-symbol _main -o %t.o %t.bc 2>&1 | \
+; RUN:     FileCheck %s -allow-empty
+; RUN: llvm-nm %t.o | FileCheck %s -check-prefix NM
+
+; RUN: llvm-lto -use-diagnostic-handler \
+; RUN:         -exported-symbol _main -o %t.o %t.bc 2>&1 | \
+; RUN:     FileCheck %s -allow-empty
+; RUN: llvm-nm %t.o | FileCheck %s -check-prefix NM
+
+; REMARKS: remark:
+; CHECK-NOT: remark:
+; NM-NOT: foo
+; NM: main
+
+define i32 @foo() {
+  ret i32 7
+}
+
+define i32 @main() {
+  %i = call i32 @foo()
+  ret i32 %i
+}