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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/torture/pr45720.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/torture/pr45720.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/torture/pr45720.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr45720.c b/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr45720.c new file mode 100644 index 000000000..9de8d1117 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/torture/pr45720.c @@ -0,0 +1,50 @@ +/* { dg-do run } */ +/* { dg-options "-ftree-vectorize" } */ + +float val[256]; +float x; +void __attribute__((noinline,noclone)) +foo(int len, int beg) +{ + int i; + for (i = len - 1; i >= beg; --i) + x += val[i] * 2; +} +void __attribute__((noinline,noclone)) +bar(void) +{ + int i; + for (i = 255; i >= 0; --i) + x += val[i] * 2; + for (i = 254; i >= 0; --i) + x += val[i] * 2; + for (i = 253; i >= 0; --i) + x += val[i] * 2; + for (i = 252; i >= 0; --i) + x += val[i] * 2; +} +float y[256]; +void __attribute__((noinline,noclone)) +foobar(void) +{ + int i; + for (i = 0; i < 252; ++i) + { + float l = 0; + l += val[255 - i] * 2; + l += val[254 - i] * 2; + l += val[253 - i] * 2; + l += val[252 - i] * 2; + y[i] = l; + } +} +int main() +{ + foo(256-1, 0); + foo(256-2, 0); + foo(256-3, 0); + foo(256-4, 0); + bar(); + foobar(); + return 0; +} |