From 528a7d226228804091bbcccca1ee5e97656e0092 Mon Sep 17 00:00:00 2001 From: Bob Wilson Date: Fri, 29 Apr 2005 16:40:52 +0000 Subject: [PATCH] xtensa.h (OPTIMIZATION_OPTIONS): Define to disable flag_reorder_blocks. * config/xtensa/xtensa.h (OPTIMIZATION_OPTIONS): Define to disable flag_reorder_blocks. From-SVN: r99000 --- gcc/ChangeLog | 5 +++++ gcc/config/xtensa/xtensa.h | 13 +++++++++++++ 2 files changed, 18 insertions(+) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 16e35659119..bc9b0e6fbce 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2005-04-29 Bob Wilson + + * config/xtensa/xtensa.h (OPTIMIZATION_OPTIONS): Define to disable + flag_reorder_blocks. + 2005-04-28 Kazu Hirata PR tree-optimization/21030 diff --git a/gcc/config/xtensa/xtensa.h b/gcc/config/xtensa/xtensa.h index 9f2f7d63399..bfe0be1d387 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() \ -- 2.30.2