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/structopt-2.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/structopt-2.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/structopt-2.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/structopt-2.c b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/structopt-2.c new file mode 100644 index 000000000..b4d28257e --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/tree-ssa/structopt-2.c @@ -0,0 +1,46 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fdump-tree-optimized -fno-tree-sra" } */ + +/* Even without SRA being enabled, we should be able to eliminate every structure store and load here. */ +extern void foo (const int); +int main(void) +{ + struct a + { + int e; + int f; + int g; + } a; + struct a b; + int x, c; + a.e = 50; + a.f = 9; + a.g = a.e * a.f; + foo (a.f); + foo (a.g); + x = a.f; + c = a.e; + foo (x); + foo (c); + a.e = 5; + a.f = 40; + a.g = 90; + foo (a.e); + foo (a.f); + foo (a.g); + c = a.f; + foo (c); + b.e = 9; + a.e = b.e + 1 * c; + a.f = 30; + foo (a.e); + foo (a.f); + x = a.e * a.f; + foo (x); + +} +/* { dg-final { scan-tree-dump-times "a.e" 0 "optimized" } } */ +/* { dg-final { scan-tree-dump-times "a.f" 0 "optimized" } } */ +/* { dg-final { scan-tree-dump-times "a.g" 0 "optimized" } } */ +/* { dg-final { scan-tree-dump-times "b.e" 0 "optimized" } } */ +/* { dg-final { cleanup-tree-dump "optimized" } } */ |