| /* { dg-do compile } */ |
| /* { dg-require-effective-target vect_int } */ |
| /* { dg-additional-options "-fdump-tree-optimized" } */ |
| |
| int a[4], b[4]; |
| int foo () |
| { |
| int tem0 = a[0] + b[0]; |
| int temx = tem0 * 17; /* this fails without a real need */ |
| int tem1 = a[1] + b[1]; |
| int tem2 = a[2] + b[2]; |
| int tem3 = a[3] + b[3]; |
| int temy = tem3 * 13; |
| a[0] = tem0; |
| a[1] = tem1; |
| a[2] = tem2; |
| a[3] = tem3; |
| return temx + temy; |
| } |
| |
| /* We should extract the live lane from the vectorized add rather than |
| keeping the original scalar add. |
| ??? Because of a too conservative check we fail for temx here. */ |
| /* { dg-final { scan-tree-dump "optimized: basic block" "slp2" } } */ |
| /* { dg-final { scan-tree-dump "extracting lane for live stmt" "slp2" } } */ |
| /* { dg-final { scan-tree-dump-times "extracting lane for live stmt" 2 "slp2" { xfail *-*-* } } } */ |
| /* { dg-final { scan-tree-dump-not "tem3_\[0-9\]\+ = " "optimized" } } */ |
| /* { dg-final { scan-tree-dump-not "tem0_\[0-9\]\+ = " "optimized" { xfail *-*-* } } } */ |
