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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gcc.dg/tree-ssa/loop-18.c | |
| download | cbb-gcc-4.6.4-15d2061ac0796199866debe9ac87130894b0cdd3.tar.bz2 cbb-gcc-4.6.4-15d2061ac0796199866debe9ac87130894b0cdd3.tar.xz | |
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Diffstat (limited to 'gcc/testsuite/gcc.dg/tree-ssa/loop-18.c')
| -rw-r--r-- | gcc/testsuite/gcc.dg/tree-ssa/loop-18.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/tree-ssa/loop-18.c b/gcc/testsuite/gcc.dg/tree-ssa/loop-18.c new file mode 100644 index 000000000..ca75db941 --- /dev/null +++ b/gcc/testsuite/gcc.dg/tree-ssa/loop-18.c @@ -0,0 +1,24 @@ +/* A test for # of iterations estimation. We know that I does not overflow, + thus we can perform strength reduction (even though the 32-bit variable + i is first extended to 64-bit type). */ + +/* { dg-options "-O2 -fdump-tree-optimized" } */ +/* { dg-do compile { target x86_64-*-* } } */ + +unsigned bar(void); + +void foo(unsigned *p, unsigned n) +{ + unsigned i; + + for (i = 0; i < n; i++) + p[i] = bar (); +} + +/* Check that the memory reference was replaced with MEM, and that there is no + multiplication. */ + +/* { dg-final { scan-tree-dump-times "MEM" 1 "optimized" } } */ +/* { dg-final { scan-tree-dump-times "\[^\\n\\r\]*= \\* " 0 "optimized" } } */ + +/* { dg-final { cleanup-tree-dump "optimized" } } */ |