1 files changed, 42 insertions, 0 deletions
diff --git a/test/Instrumentation/SanitizerCoverage/trace-pc-guard-comdat.ll b/test/Instrumentation/SanitizerCoverage/trace-pc-guard-comdat.ll
new file mode 100644
index 0000000000000..8ab5f4961b1b5
--- /dev/null
+++ b/test/Instrumentation/SanitizerCoverage/trace-pc-guard-comdat.ll
@@ -0,0 +1,42 @@
+; RUN: opt < %s -sancov -sanitizer-coverage-level=4 -sanitizer-coverage-trace-pc-guard  -S | FileCheck %s --check-prefix=CHECK_TRACE_PC_GUARD
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
+target triple = "x86_64-unknown-linux-gnu"
+define void @foo(i32* %a) sanitize_address {
+entry:
+  %tobool = icmp eq i32* %a, null
+  br i1 %tobool, label %if.end, label %if.then
+
+  if.then:                                          ; preds = %entry
+  store i32 0, i32* %a, align 4
+  br label %if.end
+
+  if.end:                                           ; preds = %entry, %if.then
+  ret void
+}
+
+%struct.StructWithVptr = type { i32 (...)** }
+
+define void @CallViaVptr(%struct.StructWithVptr* %foo) uwtable sanitize_address {
+entry:
+  %0 = bitcast %struct.StructWithVptr* %foo to void (%struct.StructWithVptr*)***
+  %vtable = load void (%struct.StructWithVptr*)**, void (%struct.StructWithVptr*)*** %0, align 8
+  %1 = load void (%struct.StructWithVptr*)*, void (%struct.StructWithVptr*)** %vtable, align 8
+  tail call void %1(%struct.StructWithVptr* %foo)
+  tail call void %1(%struct.StructWithVptr* %foo)
+  tail call void asm sideeffect "", ""()
+  ret void
+}
+
+; CHECK_TRACE_PC_GUARD-LABEL: define void @foo
+; CHECK_TRACE_PC_GUARD: call void @__sanitizer_cov_trace_pc
+; CHECK_TRACE_PC_GUARD: call void asm sideeffect "", ""()
+; CHECK_TRACE_PC_GUARD: ret void
+
+; CHECK_TRACE_PC_GUARD-LABEL: define void @CallViaVptr
+; CHECK_TRACE_PC_GUARD: call void @__sanitizer_cov_trace_pc_indir
+; CHECK_TRACE_PC_GUARD: call void @__sanitizer_cov_trace_pc_indir
+; CHECK_TRACE_PC_GUARD: ret void
+
+; CHECK_TRACE_PC_GUARD-LABEL: define internal void @sancov.module_ctor() comdat
+