| /* PR tree-optimization/44547 - -Wuninitialized reports false warning |
| in nested switch statements |
| { dg-do compile } |
| { dg-options "-O1 -Wall" } */ |
| |
| __attribute__ ((noipa)) int test_O1 (int argc) |
| { |
| switch( argc ) |
| { |
| case 1: |
| case 2: |
| case 4: |
| { |
| int n; |
| switch( argc ) |
| { |
| case 1: |
| case 2: |
| case 4: |
| n = argc; |
| break; |
| } |
| |
| return n; |
| |
| break; |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| #pragma GCC optimize ("2") |
| |
| __attribute__ ((noipa)) int test_O2 (int argc) |
| { |
| switch( argc ) |
| { |
| case 1: |
| case 2: |
| case 4: |
| { |
| int n; |
| switch( argc ) |
| { |
| case 1: |
| case 2: |
| case 4: |
| n = argc; |
| break; |
| } |
| |
| return n; |
| |
| break; |
| } |
| } |
| |
| return 0; |
| } |