| /* { dg-do compile } */ |
| /* { dg-options "-O3 -fno-tree-fre -fno-tree-pre -fdump-tree-optimized --param sra-max-scalarization-size-Ospeed=32" } */ |
| /* System Z needs hardware vector support for this to work (the optimization |
| gets too complex without it. |
| { dg-additional-options "-march=z13" { target s390x-*-* } } */ |
| /* Use generic tuning on x86 for the same reasons as why alpha, powerpc etc. are |
| xfailed below. |
| { dg-additional-options "-mtune=generic" { target i?86-*-* x86_64-*-* } } */ |
| |
| int |
| foo () |
| { |
| const int a[8] = { 0, 1, 2, 3, 4, 5, 6, 7 }; |
| int i, sum; |
| |
| sum = 0; |
| for (i = 0; i < sizeof (a) / sizeof (*a); i++) |
| sum += a[i]; |
| |
| return sum; |
| } |
| |
| /* After late unrolling the above loop completely DOM should be |
| able to optimize this to return 28. */ |
| |
| /* On alpha, the vectorizer generates writes of two vector elements at once, |
| but the loop reads only one element at a time, and DOM cannot resolve these. |
| The same happens on powerpc depending on the SIMD support available. */ |
| |
| /* { dg-final { scan-tree-dump "return 28;" "optimized" { xfail { { alpha*-*-* hppa*64*-*-* nvptx*-*-* mmix-knuth-mmixware } || { { { lp64 && { powerpc*-*-* sparc*-*-* riscv*-*-* } } || aarch64_sve } || { arm*-*-* && { ! arm_neon } } } } } } } */ |
