diff options
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-8.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-8.c | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-8.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-8.c new file mode 100644 index 000000000..766f674d5 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/scev-8.c @@ -0,0 +1,62 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-ivopts-details" } */ + +int *a; + +int +foo1 (long long s, long long l) +{ + long long i; + + for (i = s; i < l; i++) + { + a[(short)i] = 0; + } + return 0; +} + +int +foo2 (unsigned char s, unsigned char l, unsigned char c) +{ + unsigned char i, step = 1; + int sum = 0; + + for (i = s; i < l; i++) + { + sum += a[c]; + c += step; + } + + return sum; +} + +int +foo3 (unsigned char s, unsigned char l, unsigned char c) +{ + unsigned char i; + int sum = 0; + + for (i = s; i != l; i += c) + { + sum += a[i]; + } + + return sum; +} + +int +foo4 (unsigned char s, unsigned char l) +{ + unsigned char i; + int sum = 0; + + for (i = s; i != l; i++) + { + sum += a[i]; + } + + return sum; +} + +/* Address of array references are not scevs. */ +/* { dg-final { scan-tree-dump-not "use \[0-9\]\n address" "ivopts" } } */ |