1 files changed, 51 insertions, 0 deletions
diff --git a/test/Frontend/optimization-remark.c b/test/Frontend/optimization-remark.c
new file mode 100644
index 0000000000000..6ada0030a700d
--- /dev/null
+++ b/test/Frontend/optimization-remark.c
@@ -0,0 +1,51 @@
+// This file tests the -Rpass family of flags (-Rpass, -Rpass-missed
+// and -Rpass-analysis) with the inliner. The test is designed to
+// always trigger the inliner, so it should be independent of the
+// optimization level.
+
+// RUN: %clang_cc1 %s -Rpass=inline -Rpass-analysis=inline -Rpass-missed=inline -O0 -emit-llvm-only -verify
+// RUN: %clang_cc1 %s -Rpass=inline -Rpass-analysis=inline -Rpass-missed=inline -O0 -emit-llvm-only -gline-tables-only -verify
+// RUN: %clang_cc1 %s -Rpass=inline -emit-llvm -o - 2>/dev/null | FileCheck %s
+//
+// Check that we can override -Rpass= with -Rno-pass.
+// RUN: %clang_cc1 %s -Rpass=inline -emit-llvm -o - 2>&1 | FileCheck %s --check-prefix=CHECK-REMARKS
+// RUN: %clang_cc1 %s -Rpass=inline -Rno-pass -emit-llvm -o - 2>&1 | FileCheck %s --check-prefix=CHECK-NO-REMARKS
+// RUN: %clang_cc1 %s -Rpass=inline -Rno-everything -emit-llvm -o - 2>&1 | FileCheck %s --check-prefix=CHECK-NO-REMARKS
+// RUN: %clang_cc1 %s -Rpass=inline -Rno-everything -Reverything -emit-llvm -o - 2>&1 | FileCheck %s --check-prefix=CHECK-REMARKS
+//
+// FIXME: -Reverything should imply -Rpass=.*.
+// RUN: %clang_cc1 %s -Reverything -emit-llvm -o - 2>/dev/null | FileCheck %s --check-prefix=CHECK-NO-REMARKS
+//
+// FIXME: -Rpass should either imply -Rpass=.* or should be rejected.
+// RUN: %clang_cc1 %s -Rpass -emit-llvm -o - 2>/dev/null | FileCheck %s --check-prefix=CHECK-NO-REMARKS
+
+// CHECK-REMARKS: remark:
+// CHECK-NO-REMARKS-NOT: remark:
+
+// -Rpass should produce source location annotations, exclusively (just
+// like -gmlt).
+// CHECK: , !dbg !
+// CHECK-NOT: DW_TAG_base_type
+
+// But llvm.dbg.cu should be missing (to prevent writing debug info to
+// the final output).
+// CHECK-NOT: !llvm.dbg.cu = !{
+
+int foo(int x, int y) __attribute__((always_inline));
+int foo(int x, int y) { return x + y; }
+
+float foz(int x, int y) __attribute__((noinline));
+float foz(int x, int y) { return x * y; }
+
+// The negative diagnostics are emitted twice because the inliner runs
+// twice.
+//
+int bar(int j) {
+// expected-remark@+6 {{foz should never be inlined (cost=never)}}
+// expected-remark@+5 {{foz will not be inlined into bar}}
+// expected-remark@+4 {{foz should never be inlined}}
+// expected-remark@+3 {{foz will not be inlined into bar}}
+// expected-remark@+2 {{foo should always be inlined}}
+// expected-remark@+1 {{foo inlined into bar}}
+  return foo(j, j - 2) * foz(j - 2, j);
+}