diff options
Diffstat (limited to 'gcc/testsuite')
| -rw-r--r-- | gcc/testsuite/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/testsuite/gcc.dg/prefetch-loop-arrays-1.c | 36 |
2 files changed, 41 insertions, 0 deletions
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog index 0864aeb373e..ee17e194246 100644 --- a/gcc/testsuite/ChangeLog +++ b/gcc/testsuite/ChangeLog @@ -1,3 +1,8 @@ +2006-09-17 Roger Sayle <roger@eyesopen.com> + + PR tree-optimization/28887 + * gcc.dg/prefetch-loop-arrays-1.c: New test case. + 2006-09-16 Steven Bosscher <steven@gcc.gnu.org> PR c/25993 diff --git a/gcc/testsuite/gcc.dg/prefetch-loop-arrays-1.c b/gcc/testsuite/gcc.dg/prefetch-loop-arrays-1.c new file mode 100644 index 00000000000..ba91d69650d --- /dev/null +++ b/gcc/testsuite/gcc.dg/prefetch-loop-arrays-1.c @@ -0,0 +1,36 @@ +/* PR tree-optimization/28887 */ +/* { dg-do compile } */ +/* { dg-options "-O2 -fprefetch-loop-arrays -w" } */ +/* { dg-options "-O2 -fprefetch-loop-arrays -march=i686 -msse -w" { target { { i?86-*-* x86_64-*-* } && ilp32 } } } */ + +typedef unsigned long size_t; + +struct re_pattern_buffer +{ + size_t re_nsub; +}; + +typedef enum +{ + start_memory, +} re_opcode_t; + +typedef union +{ + struct + { + unsigned matched_something:1; + } bits; +} byte_register_info_type; + +void byte_re_match_2_internal (struct re_pattern_buffer *bufp) +{ + int mcnt; + size_t num_regs = bufp->re_nsub + 1; + byte_register_info_type *reg_info; + for (mcnt = 1; (unsigned) mcnt < num_regs; mcnt++) + { + ((reg_info[mcnt]).bits.matched_something) = 0; + } +} + |