diff options
| -rw-r--r-- | gcc/ChangeLog | 6 | ||||
| -rw-r--r-- | gcc/config/i386/i386.c | 3 | ||||
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/pr59605.c | 55 |
4 files changed, 68 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 5834df2..290a978 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,9 @@ +2013-12-30 H.J. Lu <hongjiu.lu@intel.com> + + PR target/59605 + * config/i386/i386.c (ix86_expand_set_or_movmem): Create + jump_around_label only if it doesn't exist. + 2013-12-28 Eric Botcazou <ebotcazou@adacore.com> * doc/invoke.texi (output file options): Document -fada-spec-parent. diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c index 2fc9b80..6e6b261 100644 --- a/gcc/config/i386/i386.c +++ b/gcc/config/i386/i386.c @@ -24047,7 +24047,8 @@ ix86_expand_set_or_movmem (rtx dst, rtx src, rtx count_exp, rtx val_exp, else { rtx hot_label = gen_label_rtx (); - jump_around_label = gen_label_rtx (); + if (jump_around_label == NULL_RTX) + jump_around_label = gen_label_rtx (); emit_cmp_and_jump_insns (count_exp, GEN_INT (dynamic_check - 1), LEU, 0, GET_MODE (count_exp), 1, hot_label); predict_jump (REG_BR_PROB_BASE * 90 / 100); diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index bd46fa6..b7f12f5 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2013-12-30 H.J. Lu <hongjiu.lu@intel.com> + + PR target/59605 + * gcc.dg/pr59605.c: New test. + 2013-12-27 Yury Gribov <y.gribov@samsung.com> PR target/59585 diff --git a/gcc/testsuite/gcc.dg/pr59605.c b/gcc/testsuite/gcc.dg/pr59605.c new file mode 100644 index 0000000..4556843 --- /dev/null +++ b/gcc/testsuite/gcc.dg/pr59605.c @@ -0,0 +1,55 @@ +/* { dg-do run } */ +/* { dg-options "-O2" } */ +/* { dg-additional-options "-minline-stringops-dynamically" { target { i?86-*-* x86_64-*-* } } } */ + +extern void abort (void); + +#define MAX_OFFSET (sizeof (long long)) +#define MAX_COPY (1024 + 8192) +#define MAX_EXTRA (sizeof (long long)) + +#define MAX_LENGTH (MAX_OFFSET + MAX_COPY + MAX_EXTRA) + +static union { + char buf[MAX_LENGTH]; + long long align_int; + long double align_fp; +} u; + +char A[MAX_LENGTH]; + +int +main () +{ + int off, len, i; + char *p, *q; + + for (i = 0; i < MAX_LENGTH; i++) + A[i] = 'A'; + + for (off = 0; off < MAX_OFFSET; off++) + for (len = 1; len < MAX_COPY; len++) + { + for (i = 0; i < MAX_LENGTH; i++) + u.buf[i] = 'a'; + + p = __builtin_memcpy (u.buf + off, A, len); + if (p != u.buf + off) + abort (); + + q = u.buf; + for (i = 0; i < off; i++, q++) + if (*q != 'a') + abort (); + + for (i = 0; i < len; i++, q++) + if (*q != 'A') + abort (); + + for (i = 0; i < MAX_EXTRA; i++, q++) + if (*q != 'a') + abort (); + } + + return 0; +} |