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| author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
|---|---|---|
| committer | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
| commit | 1bc5aee63eb72b341f506ad058502cd0361f0d10 (patch) | |
| tree | c607e8252f3405424ff15bc2d00aa38dadbb2518 /gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-19.c | |
| parent | 283a0bf58fcf333c58a2a92c3ebbc41fb9eb1fdb (diff) | |
| download | toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.gz toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.tar.bz2 toolchain_gcc-1bc5aee63eb72b341f506ad058502cd0361f0d10.zip | |
Initial checkin of GCC 4.9.0 from trunk (r208799).
Change-Id: I48a3c08bb98542aa215912a75f03c0890e497dba
Diffstat (limited to 'gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-19.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-19.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-19.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-19.c new file mode 100644 index 000000000..74b60a054 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-19.c @@ -0,0 +1,28 @@ +/* This tests strength reduction and choice of induction variables. The targets + for this testcase are quite limited, as with different set of available + addressing modes, the results may be quite different. + + The testcase comes from PR 29256 (and originally, the stream benchmark). */ + +/* { dg-do compile { target { i?86-*-* || { x86_64-*-* || powerpc_hard_double } } } } */ +/* { dg-require-effective-target nonpic } */ +/* { dg-options "-O3 -fno-tree-loop-distribute-patterns -fno-prefetch-loop-arrays -fdump-tree-optimized -fno-common" } */ + +# define N 2000000 +double a[N],c[N]; +void tuned_STREAM_Copy() +{ + int j; + for (j=0; j<N; j++) + c[j] = a[j]; +} + +/* Check that the memory references are based on &a and &c, with appropriate + offsets. Ideally, we would want each of them to appear once in the output. + However, due to a bug in jump threading, we end up peeling one iteration from + the loop, which creates an additional occurrence. */ + +/* { dg-final { scan-tree-dump-times "MEM.(base: &|symbol: )a," 2 "optimized" } } */ +/* { dg-final { scan-tree-dump-times "MEM.(base: &|symbol: )c," 2 "optimized" } } */ + +/* { dg-final { cleanup-tree-dump "optimized" } } */ |