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| 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/strlenopt-26.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/strlenopt-26.c')
| -rw-r--r-- | gcc-4.9/gcc/testsuite/gcc.dg/strlenopt-26.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/testsuite/gcc.dg/strlenopt-26.c b/gcc-4.9/gcc/testsuite/gcc.dg/strlenopt-26.c new file mode 100644 index 000000000..089355e49 --- /dev/null +++ b/gcc-4.9/gcc/testsuite/gcc.dg/strlenopt-26.c @@ -0,0 +1,25 @@ +/* { dg-do run } */ +/* { dg-options "-O2 -fdump-tree-strlen" } */ + +#include "strlenopt.h" + +__attribute__((noinline, noclone)) size_t +fn1 (char *p, const char *r) +{ + size_t len1 = strlen (r); + char *q = strchr (p, '\0'); + *q = '\0'; + return len1 - strlen (r); // This strlen should be optimized into len1. +} + +int +main (void) +{ + char p[] = "foobar"; + const char *volatile q = "xyzzy"; + fn1 (p, q); + return 0; +} + +/* { dg-final { scan-tree-dump-times "strlen \\(" 1 "strlen" } } */ +/* { dg-final { cleanup-tree-dump "strlen" } } */ |