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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-3.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-3.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-3.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-3.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-3.c new file mode 100644 index 000000000..9868c078d --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/loop-3.c @@ -0,0 +1,30 @@ +/* A test for strength reduction and induction variable elimination. + Target is restricted to x86 type architectures, so that we may + assume something about memory addressing modes. */ + +/* { dg-do compile { target { { i?86-*-* x86_64-*-* } && nonpic } } } */ +/* { dg-options "-O1 -fdump-tree-optimized" } */ + +int arr_base[100]; + +int foo(int); + +void xxx(void) +{ + long iter; + + for (iter = 0; iter < 100; iter++) + arr_base[iter] = foo (iter); +} + +/* Access to arr_base[iter].y should not be strength reduced, since + we have a memory mode including multiplication by 4. */ + +/* { dg-final { scan-tree-dump-times "MEM" 1 "optimized" } } */ +/* { dg-final { scan-tree-dump-times "step:" 1 "optimized" } } */ + +/* And original induction variable should be preserved. */ + +/* { dg-final { scan-tree-dump-times "int iter" 1 "optimized" } } */ + +/* { dg-final { cleanup-tree-dump "optimized" } } */ |