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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/reassoc-28.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/reassoc-28.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/reassoc-28.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/reassoc-28.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/reassoc-28.c new file mode 100644 index 000000000..2e9998601 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/reassoc-28.c @@ -0,0 +1,32 @@ +/* { dg-do run} */ +/* { dg-options "-O2" } */ + +#define LENGTH 4 +void abort (void); +unsigned +__attribute__ ((noinline)) foo (unsigned char *buf, int n) +{ + unsigned sum = 0, i = 0; + do { + sum +=(buf)[n-1]; + /* Split the BB to test statements are correctly moved to + satisfy dependences. */ + if (n > LENGTH) + i++; + sum += buf[n-2]; + sum += buf[n-3]; + sum += buf[n-4]; + n = n-4; + } while (n > 0); + + return sum + i; +} + +unsigned char a[] = {1, 1, 1, 1}; + +int main() { + int sum = foo (a, LENGTH); + if (sum != 4) + abort (); + return 0; +} |