clang/test/Frontend/optimization-remark-new-pm.c

   1 // Verify that remarks for the inliner appear. The remarks under the new PM will
   2 // be slightly different than those emitted by the legacy PM. The new PM inliner
   3 // also does not appear to be added at O0, so we test at O1.
   4 // RUN: %clang_cc1 %s -Rpass=inline -Rpass-analysis=inline -Rpass-missed=inline -O1 -emit-llvm-only -verify
   5 // RUN: %clang_cc1 %s -Rpass=inline -Rpass-analysis=inline -Rpass-missed=inline -O1 -emit-llvm-only -debug-info-kind=line-tables-only -verify
   6
   7 int foo(int x, int y) __attribute__((always_inline));
   8 int foo(int x, int y) { return x + y; }
   9
  10 float foz(int x, int y) __attribute__((noinline));
  11 float foz(int x, int y) { return x * y; }
  12
  13 // The negative diagnostics are emitted twice because the inliner runs
  14 // twice.
  15 //
  16 int bar(int j) {
  17   // expected-remark@+2 {{'foz' not inlined into 'bar' because it should never be inlined (cost=never)}}
  18   // expected-remark@+1 {{'foo' inlined into 'bar'}}
  19   return foo(j, j - 2) * foz(j - 2, j);
  20 }