Reposting, with ChangeLog.
2011-04-01 Tom de Vries <t...@codesourcery.com>
PR target/43920 * config/arm/arm.h (BRANCH_COST): Set to 1 for Thumb-2 when optimizing for size. Index: gcc/config/arm/arm.h =================================================================== --- gcc/config/arm/arm.h (revision 293961) +++ gcc/config/arm/arm.h (revision 293962) @@ -2201,7 +2201,8 @@ typedef struct /* Try to generate sequences that don't involve branches, we can then use conditional instructions */ #define BRANCH_COST(speed_p, predictable_p) \ - (TARGET_32BIT ? 4 : (optimize > 0 ? 2 : 0)) + (TARGET_32BIT ? (TARGET_THUMB2 && optimize_size ? 1 : 4) \ + : (optimize > 0 ? 2 : 0)) /* Position Independent Code. */ /* We decide which register to use based on the compilation options and