diff options
Diffstat (limited to 'clang/test/CodeGen/thinlto-clang-diagnostic-handler-in-be.c')
| -rw-r--r-- | clang/test/CodeGen/thinlto-clang-diagnostic-handler-in-be.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/clang/test/CodeGen/thinlto-clang-diagnostic-handler-in-be.c b/clang/test/CodeGen/thinlto-clang-diagnostic-handler-in-be.c new file mode 100644 index 00000000000..3c410571a90 --- /dev/null +++ b/clang/test/CodeGen/thinlto-clang-diagnostic-handler-in-be.c @@ -0,0 +1,24 @@ +// Test clang diagnositic handler works in IR file compilation. + +// REQUIRES: x86-registered-target + +// RUN: llvm-profdata merge -o %t1.profdata %S/Inputs/thinlto_expect1.proftext +// RUN: %clang -O2 -fexperimental-new-pass-manager -flto=thin -g -fprofile-use=%t1.profdata -c -o %t1.bo %s +// RUN: llvm-lto -thinlto -o %t %t1.bo +// RUN: %clang -cc1 -O2 -fexperimental-new-pass-manager -x ir %t1.bo -fthinlto-index=%t.thinlto.bc -emit-obj -Rpass-analysis=info 2>&1 | FileCheck %s -check-prefix=CHECK-REMARK +// RUN: llvm-profdata merge -o %t2.profdata %S/Inputs/thinlto_expect2.proftext +// RUN: %clang -cc1 -O2 -fexperimental-new-pass-manager -x ir %t1.bo -fthinlto-index=%t.thinlto.bc -fprofile-instrument-use-path=%t2.profdata -emit-obj -Wmisexpect 2>&1 | FileCheck %s -check-prefix=CHECK-WARNING +// RUN: %clang -cc1 -O2 -fexperimental-new-pass-manager -x ir %t1.bo -fthinlto-index=%t.thinlto.bc -fprofile-instrument-use-path=%t2.profdata -emit-obj 2>&1 | FileCheck %s -allow-empty -check-prefix=CHECK-NOWARNING + +int sum; +__attribute__((noinline)) void bar() { + sum = 1234; +} + +__attribute__((noinline)) void foo(int m) { + if (__builtin_expect(m > 9, 1)) + bar(); +} +// CHECK-REMARK: remark: {{.*}}.c: +// CHECK-WARNING: warning: Potential performance regression from use of __builtin_expect(): Annotation was correct on {{.*}}.c:{{[0-9]*}}:26: 50.00% (12 / 24) of profiled executions. +// CHECK-NOWARNING-NOT: warning: {{.*}}.c:{{[0-9]*}}:26: 50.00% (12 / 24) |
