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-rw-r--r--test/CodeGen/code-coverage.c19
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diff --git a/test/CodeGen/code-coverage.c b/test/CodeGen/code-coverage.c
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+// RUN: %clang_cc1 -O0 -mno-red-zone -fprofile-arcs -ftest-coverage -emit-llvm %s -o - | FileCheck %s
+// <rdar://problem/12843084>
+
+int test1(int a) {
+ switch (a % 2) {
+ case 0:
+ ++a;
+ case 1:
+ a /= 2;
+ }
+ return a;
+}
+
+// Check tha the `-mno-red-zone' flag is set here on the generated functions.
+
+// CHECK: void @__llvm_gcov_indirect_counter_increment(i32* %{{.*}}, i64** %{{.*}}) unnamed_addr noinline noredzone
+// CHECK: void @__llvm_gcov_writeout() unnamed_addr noinline noredzone
+// CHECK: void @__llvm_gcov_init() unnamed_addr noinline noredzone
+// CHECK: void @__gcov_flush() unnamed_addr noinline noredzone