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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/ssa-sink-5.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/ssa-sink-5.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-5.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-5.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-5.c new file mode 100644 index 000000000..f51d485d4 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-sink-5.c @@ -0,0 +1,48 @@ +/* { dg-do compile } */ +/* { dg-options "-Os -fdump-tree-sink-stats" } */ + +typedef short int16_t; +typedef unsigned char uint8_t; + +void foo(int16_t runs[], uint8_t alpha[], int x, int count) +{ + int16_t* next_runs = runs + x; + uint8_t* next_alpha = alpha + x; + + while (x > 0) + { + int n = runs[0]; + + if (x < n) + { + alpha[x] = alpha[0]; + runs[0] = (int16_t)(x); + runs[x] = (int16_t)(n - x); + break; + } + runs += n; + alpha += n; + x -= n; + } + + runs = next_runs; + alpha = next_alpha; + x = count; + + for (;;) + { + int n = runs[0]; + + if (x < n) + { + alpha[x] = alpha[0]; + break; + } + x -= n; + runs += n; + } +} + +/* We should not sink the next_runs = runs + x calculation after the loop. */ +/* { dg-final { scan-tree-dump-times "Sunk statements:" 0 "sink" } } */ +/* { dg-final { cleanup-tree-dump "sink" } } */ |