| Message ID | 1367335277-23532-1-git-send-email-james.greenhalgh@arm.com |
|---|---|
| State | New |
| Headers | show |
OK /Marcus On 30 April 2013 16:21, James Greenhalgh <james.greenhalgh@arm.com> wrote: > > Hi, > > This patch folds the signed versions of min and max reduction > builtins to tree form. We can't safely fold the unsigned > versions as they do not currently have the correct type. > > We must use TARGET_GIMPLE_FOLD_BUILTIN as REDUC_MIN_EXPR > is not a valid GENERIC code. > > Regression tested on aarch64-none-elf with no regressions. > > Thanks, > James > > --- > gcc/ > > 2013-04-30 James Greenhalgh <james.greenhalgh@arm.com> > > * config/aarch64/aarch64-builtins > (aarch64_gimple_fold_builtin): Fold reduc_<su><maxmin>_ builtins.
diff --git a/gcc/config/aarch64/aarch64-builtins.c b/gcc/config/aarch64/aarch64-builtins.c index 3016f25..8eb32c6 100644 --- a/gcc/config/aarch64/aarch64-builtins.c +++ b/gcc/config/aarch64/aarch64-builtins.c @@ -1372,6 +1372,21 @@ aarch64_gimple_fold_builtin (gimple_stmt_iterator *gsi) args[0], NULL_TREE); break; + BUILTIN_VDQIF (UNOP, reduc_smax_, 10) + new_stmt = gimple_build_assign_with_ops ( + REDUC_MAX_EXPR, + gimple_call_lhs (stmt), + args[0], + NULL_TREE); + break; + BUILTIN_VDQIF (UNOP, reduc_smin_, 10) + new_stmt = gimple_build_assign_with_ops ( + REDUC_MIN_EXPR, + gimple_call_lhs (stmt), + args[0], + NULL_TREE); + break; + default: break; }