Mercurial > hg > CbC > CbC_gcc
view gcc/testsuite/gcc.dg/loop-versioning-8.c @ 157:dafe684d005c
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author | Shinji KONO <kono@ie.u-ryukyu.ac.jp> |
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date | Mon, 25 May 2020 18:08:54 +0900 |
parents | 1830386684a0 |
children |
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/* { dg-options "-O3 -fdump-tree-lversion-details" } */ /* Versioning for step == 1 in these loops would allow loop interchange, but otherwise isn't worthwhile. At the moment we decide not to version. */ struct foo { int a[100]; }; void f1 (struct foo *x, int step, int n) { for (int i = 0; i < n; ++i) for (int j = 0; j < n; ++j) x[j * step].a[i] = 100; } void f2 (struct foo *x, int step, int n) { for (int i = 0; i < n; ++i) for (int j = 0; j < n; ++j) x[j].a[i * step] = 100; } void f3 (struct foo *x, int step, int limit) { for (int i = 0; i < 100; ++i) for (int j = 0; j < limit; j += step) x[j].a[i] = 100; } void f4 (struct foo *x, int step, int limit) { for (int i = 0; i < limit; i += step) for (int j = 0; j < 100; ++j) x[j].a[i] = 100; } /* { dg-final { scan-tree-dump-not {want to version} "lversion" } } */ /* { dg-final { scan-tree-dump-not {versioned} "lversion" } } */