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| author | Richard Sandiford <richard@codesourcery.com> | 2007-07-23 12:49:45 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2007-07-23 12:49:45 +0000 |
| commit | a05bea767716117ac703c1adfcdf660906183b65 (patch) | |
| tree | 261fdc61422012cf1e8354c83eca63bf14ce9391 /gcc/config/mips/mips.opt | |
| parent | fae4095f015e9cf79b4b2bd2a243cf825ca624e0 (diff) | |
| download | gcc-a05bea767716117ac703c1adfcdf660906183b65.zip gcc-a05bea767716117ac703c1adfcdf660906183b65.tar.gz gcc-a05bea767716117ac703c1adfcdf660906183b65.tar.bz2 | |
mips.c (override_options): Use mips_costs to derive the default branch cost.
gcc/
* config/mips/mips.c (override_options): Use mips_costs to derive
the default branch cost.
* config/mips/mips.h (BRANCH_COST): Use mips_branch_cost rather
than mips_costs.
* config/mips/mips.opt (mbranch-cost=): New option.
* doc/invoke.texi (-mbrach-cost): Document new MIPS option.
gcc/testsuite/
* gcc.target/mips/branch-cost-1.c: New test.
* gcc.target/mips/branch-cost-2.c: Likewise.
From-SVN: r126846
Diffstat (limited to 'gcc/config/mips/mips.opt')
| -rw-r--r-- | gcc/config/mips/mips.opt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/gcc/config/mips/mips.opt b/gcc/config/mips/mips.opt index f7e751f..7e6dd37 100644 --- a/gcc/config/mips/mips.opt +++ b/gcc/config/mips/mips.opt @@ -35,6 +35,10 @@ march= Target RejectNegative Joined Var(mips_arch_string) -march=ISA Generate code for the given ISA +mbranch-cost= +Target RejectNegative Joined UInteger Var(mips_branch_cost) +-mbranch-cost=COST Set the cost of branches to roughly COST instructions + mbranch-likely Target Report Mask(BRANCHLIKELY) Use Branch Likely instructions, overriding the architecture default |