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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-dce-4.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-dce-4.c')
-rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-4.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-4.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-4.c new file mode 100644 index 000000000..261880cc2 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/ssa-dce-4.c @@ -0,0 +1,20 @@ +/* { dg-do compile } */ +/* { dg-options "-O -fno-tree-fre -fdump-tree-cddce1" } */ + +int foo(int b) +{ + int a[128]; + a[b] = 1; + if (b) + { + b = 2; + a[2] = 0; + } + a[2] = 3; + return a[2] + b; +} + +/* Verify DCE removes all accesses to a but the last store and the + read from a[2]. */ +/* { dg-final { scan-tree-dump-times "a\\\[\[^\n\]\\\]" 2 "cddce1" } } */ +/* { dg-final { cleanup-tree-dump "cddce1" } } */ |