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author | Ben Cheng <bccheng@google.com> | 2014-03-25 22:37:19 -0700 |
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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/slsr-26.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/slsr-26.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/slsr-26.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/slsr-26.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/slsr-26.c new file mode 100644 index 000000000..c333e00bb --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/slsr-26.c @@ -0,0 +1,32 @@ +/* Verify straight-line strength reduction for multiply candidates + with variable stride and control flow, increment = -3. */ + +/* { dg-do compile } */ +/* { dg-options "-O3 -fdump-tree-optimized" } */ + +int +f (int n, int x, int stride) +{ + int a, x1, x2, x3; + + a = x * stride; + + if (n > 64) + { + x1 = x - 3; + a += x1 * stride; + x2 = x1 - 3; + a += x2 * stride; + } + else + { + x3 = x - 3; + a += x3 * stride; + } + + return a; +} + +/* { dg-final { scan-tree-dump-times " \\* stride" 1 "optimized" } } */ +/* { dg-final { scan-tree-dump-times " \\* 3" 1 "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |