| /* Test for a bogus warning on comparison between signed and unsigned. |
| This was inspired by code in gcc. */ |
| |
| /* { dg-do compile } */ |
| /* { dg-options "-Wsign-compare" } */ |
| |
| int tf = 1; |
| |
| void f(int x, unsigned int y) |
| { |
| /* Test comparing conditional expressions containing truth values. |
| This can occur explicitly, or e.g. when (foo?2:(bar?1:0)) is |
| optimized into (foo?2:(bar!=0)). */ |
| x > (tf?64:(tf!=x)); /* { dg-bogus "changes signedness" "case 1" } */ |
| y > (tf?64:(tf!=x)); /* { dg-bogus "changes signedness" "case 2" } */ |
| x > (tf?(tf!=x):64); /* { dg-bogus "changes signedness" "case 3" } */ |
| y > (tf?(tf!=x):64); /* { dg-bogus "changes signedness" "case 4" } */ |
| |
| x > (tf?64:(tf==x)); /* { dg-bogus "changes signedness" "case 5" } */ |
| y > (tf?64:(tf==x)); /* { dg-bogus "changes signedness" "case 6" } */ |
| x > (tf?(tf==x):64); /* { dg-bogus "changes signedness" "case 7" } */ |
| y > (tf?(tf==x):64); /* { dg-bogus "changes signedness" "case 8" } */ |
| |
| x > (tf?64:(tf>x)); /* { dg-bogus "changes signedness" "case 9" } */ |
| y > (tf?64:(tf>x)); /* { dg-bogus "changes signedness" "case 10" } */ |
| x > (tf?(tf>x):64); /* { dg-bogus "changes signedness" "case 11" } */ |
| y > (tf?(tf>x):64); /* { dg-bogus "changes signedness" "case 12" } */ |
| |
| x < (tf?64:(tf<x)); /* { dg-bogus "changes signedness" "case 13" } */ |
| y < (tf?64:(tf<x)); /* { dg-bogus "changes signedness" "case 14" } */ |
| x < (tf?(tf<x):64); /* { dg-bogus "changes signedness" "case 15" } */ |
| y < (tf?(tf<x):64); /* { dg-bogus "changes signedness" "case 16" } */ |
| |
| x > (tf?64:(tf>=x)); /* { dg-bogus "changes signedness" "case 17" } */ |
| y > (tf?64:(tf>=x)); /* { dg-bogus "changes signedness" "case 18" } */ |
| x > (tf?(tf>=x):64); /* { dg-bogus "changes signedness" "case 19" } */ |
| y > (tf?(tf>=x):64); /* { dg-bogus "changes signedness" "case 20" } */ |
| |
| x > (tf?64:(tf<=x)); /* { dg-bogus "changes signedness" "case 21" } */ |
| y > (tf?64:(tf<=x)); /* { dg-bogus "changes signedness" "case 22" } */ |
| x > (tf?(tf<=x):64); /* { dg-bogus "changes signedness" "case 23" } */ |
| y > (tf?(tf<=x):64); /* { dg-bogus "changes signedness" "case 24" } */ |
| |
| x > (tf?64:(tf&&x)); /* { dg-bogus "changes signedness" "case 25" } */ |
| y > (tf?64:(tf&&x)); /* { dg-bogus "changes signedness" "case 26" } */ |
| x > (tf?(tf&&x):64); /* { dg-bogus "changes signedness" "case 27" } */ |
| y > (tf?(tf&&x):64); /* { dg-bogus "changes signedness" "case 28" } */ |
| |
| x > (tf?64:(tf||x)); /* { dg-bogus "changes signedness" "case 29" } */ |
| y > (tf?64:(tf||x)); /* { dg-bogus "changes signedness" "case 30" } */ |
| x > (tf?(tf||x):64); /* { dg-bogus "changes signedness" "case 31" } */ |
| y > (tf?(tf||x):64); /* { dg-bogus "changes signedness" "case 32" } */ |
| |
| x > (tf?64:(!tf)); /* { dg-bogus "changes signedness" "case 33" } */ |
| y > (tf?64:(!tf)); /* { dg-bogus "changes signedness" "case 34" } */ |
| x > (tf?(!tf):64); /* { dg-bogus "changes signedness" "case 35" } */ |
| y > (tf?(!tf):64); /* { dg-bogus "changes signedness" "case 36" } */ |
| |
| } |