diff options
| 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/pr19590.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/pr19590.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr19590.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr19590.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr19590.c new file mode 100644 index 000000000..1be1119da --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/pr19590.c @@ -0,0 +1,37 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-ivopts" } */ + +void vnum_test8(int *data) +{ + int i; + int stop = data[3]; + int m = data[4]; + int n = m; + for (i=1; i<stop; i++) { + int k = data[2]; + data[k] = 2; + data[0] = m - n; + k = data[1]; + m = m + k; + n = n + k; + } +} + +/* Using the SCEV analysis, this loop should be transformed to: + + | void vnum_result8(int *data) + |{ + | int i; + | int stop = data[3]; + | for (i=1; i<stop; i++) { + | int k = data[2]; + | data[k] = 2; + | data[0] = 0; + | } + |} + +*/ + +/* { dg-final { scan-tree-dump-times "= 0;" 1 "ivopts"} } */ +/* { dg-final { scan-tree-dump-times "= 2;" 1 "ivopts"} } */ +/* { dg-final { cleanup-tree-dump "ivopts" } } */ |