test/FrontendC++/integration-O2.cpp

   1 // RUN: %llvmgxx %s -O2 -S -o - | FileCheck %s
   2
   3 // This test verifies that we get expected codegen out of the -O2 optimization
   4 // level from the full optimizer.
   5
   6
   7
   8 // Verify that ipsccp is running and can eliminate globals.
   9 static int test1g = 42;
  10 void test1f1() {
  11   if (test1g == 0) test1g = 0;
  12 }
  13 int test1f2() {
  14   return test1g;
  15 }
  16
  17 // CHECK: @_Z7test1f2v()
  18 // CHECK: entry:
  19 // CHECK-NEXT: ret i32 42