| Chris Lattner | 45ad5c4 | 2009-11-01 18:57:49 +0000 | [diff] [blame] | 1 | // RUN: %llvmgxx %s -O2 -S -o - | FileCheck %s |
| Chris Lattner | 45ad5c4 | 2009-11-01 18:57:49 +0000 | [diff] [blame] | 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 |