diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/config/xtensa/xtensa.h | 13 |
2 files changed, 18 insertions, 0 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 16e3565..bc9b0e6 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2005-04-29 Bob Wilson <bob.wilson@acm.org> + + * config/xtensa/xtensa.h (OPTIMIZATION_OPTIONS): Define to disable + flag_reorder_blocks. + 2005-04-28 Kazu Hirata <kazu@cs.umass.edu> PR tree-optimization/21030 diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h index 9f2f7d6..bfe0be1 100644 --- a/gcc/config/xtensa/xtensa.h +++ b/gcc/config/xtensa/xtensa.h @@ -65,6 +65,19 @@ extern unsigned xtensa_current_frame_size; (XCHAL_HAVE_L32R ? 0 : MASK_CONST16)) #define OVERRIDE_OPTIONS override_options () + +/* Reordering blocks for Xtensa is not a good idea unless the compiler + understands the range of conditional branches. Currently all branch + relaxation for Xtensa is handled in the assembler, so GCC cannot do a + good job of reordering blocks. Do not enable reordering unless it is + explicitly requested. */ +#define OPTIMIZATION_OPTIONS(LEVEL, SIZE) \ + do \ + { \ + flag_reorder_blocks = 0; \ + } \ + while (0) + /* Target CPU builtins. */ #define TARGET_CPU_CPP_BUILTINS() \ |