| /* Regression test for PR middle-end/33826 */ |
| /* Verify that recursive functions cannot be pure or const. */ |
| |
| /* { dg-do compile { target { nonpic || pie_enabled } } } */ |
| /* { dg-options "-O1 -fdump-tree-local-pure-const1 -fdump-ipa-pure-const" } */ |
| |
| int recurse1 (int); |
| int recurse2b (int); |
| int norecurse1b (int); |
| |
| int recurese1 (int i) |
| { |
| return recurse1 (i+1); |
| } |
| |
| int recurse2a (int i) |
| { |
| return recurse2b (i+1); |
| } |
| |
| int recurse2b (int i) |
| { |
| return recurse2a (i+1); |
| } |
| |
| int norecurse1a (int i) |
| { |
| return norecurse1b (i+1); |
| } |
| |
| int norecurse1b (int i) |
| { |
| return i+1; |
| } |
| |
| /* { dg-final { scan-tree-dump "found to be const: norecurse1a" "local-pure-const1" } } */ |
| /* { dg-final { scan-tree-dump "found to be const: norecurse1b" "local-pure-const1" } } */ |
| /* { dg-final { scan-tree-dump-not "found to be pure: recurse1" "local-pure-const1" } } */ |
| /* { dg-final { scan-tree-dump-not "found to be pure: recurse2a" "local-pure-const1" } } */ |
| /* { dg-final { scan-tree-dump-not "found to be pure: recurse2b" "local-pure-const1" } } */ |
| /* { dg-final { scan-tree-dump-not "found to be const: recurse1" "local-pure-const1" } } */ |
| /* { dg-final { scan-tree-dump-not "found to be const: recurse2a" "local-pure-const1" } } */ |
| /* { dg-final { scan-tree-dump-not "found to be const: recurse2b" "local-pure-const1" } } */ |
| /* { dg-final { scan-ipa-dump-not "found to be pure: recurse1" "pure-const" } } */ |
| /* { dg-final { scan-ipa-dump-not "found to be pure: recurse2a" "pure-const" } } */ |
| /* { dg-final { scan-ipa-dump-not "found to be pure: recurse2b" "pure-const" } } */ |
| /* { dg-final { scan-ipa-dump-not "found to be const: recurse1" "pure-const" } } */ |
| /* { dg-final { scan-ipa-dump-not "found to be const: recurse2a" "pure-const" } } */ |
| /* { dg-final { scan-ipa-dump-not "found to be const: recurse2b" "pure-const" } } */ |
