[gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] Internal-fn: Add FLOATN support for l/ll round and rint [PR/112432]

[gcc(refs/vendors/riscv/heads/gcc-13-with-riscv-opts)] Internal-fn: Add FLOATN support for l/ll round and rint [PR/112432]

[Jeff Law]

https://gcc.gnu.org/g:c23d2741625e7cc1a116ff37438fff646c09e232

commit c23d2741625e7cc1a116ff37438fff646c09e232
Author: Pan Li <pan2.li@intel.com>
Date:   Thu Nov 9 22:04:39 2023 +0800

    Internal-fn: Add FLOATN support for l/ll round and rint [PR/112432]
    
    The defined DEF_EXT_LIB_FLOATN_NX_BUILTINS functions should also
    have DEF_INTERNAL_FLT_FLOATN_FN instead of DEF_INTERNAL_FLT_FN for
    the FLOATN support. According to the glibc API and gcc builtin, we
    have below table for the FLOATN is supported or not.
    
    +---------+-------+-------------------------------------+
    |         | glibc | gcc: DEF_EXT_LIB_FLOATN_NX_BUILTINS |
    +---------+-------+-------------------------------------+
    | iceil   | N     | N                                   |
    | ifloor  | N     | N                                   |
    | irint   | N     | N                                   |
    | iround  | N     | N                                   |
    | lceil   | N     | N                                   |
    | lfloor  | N     | N                                   |
    | lrint   | Y     | Y                                   |
    | lround  | Y     | Y                                   |
    | llceil  | N     | N                                   |
    | llfllor | N     | N                                   |
    | llrint  | Y     | Y                                   |
    | llround | Y     | Y                                   |
    +---------+-------+-------------------------------------+
    
    This patch would like to support FLOATN for:
    1. lrint
    2. lround
    3. llrint
    4. llround
    
    The below tests are passed within this patch:
    1. x86 bootstrap and regression test.
    2. aarch64 regression test.
    3. riscv regression tests.
    
            PR target/112432
    
    gcc/ChangeLog:
    
            * internal-fn.def (LRINT): Add FLOATN support.
            (LROUND): Ditto.
            (LLRINT): Ditto.
            (LLROUND): Ditto.
    
    Signed-off-by: Pan Li <pan2.li@intel.com>
    (cherry picked from commit 907603d4b117e82dbbde2d58a04e33f3021908e7)

Diff:
---
 gcc/internal-fn.def | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/gcc/internal-fn.def b/gcc/internal-fn.def
index c445bd8c2b2..66d8bf1e43a 100644
--- a/gcc/internal-fn.def
+++ b/gcc/internal-fn.def
@@ -334,12 +334,12 @@ DEF_INTERNAL_FLT_FN (IRINT, ECF_CONST, lrint, unary_convert)
 DEF_INTERNAL_FLT_FN (IROUND, ECF_CONST, lround, unary_convert)
 DEF_INTERNAL_FLT_FN (LCEIL, ECF_CONST, lceil, unary_convert)
 DEF_INTERNAL_FLT_FN (LFLOOR, ECF_CONST, lfloor, unary_convert)
-DEF_INTERNAL_FLT_FN (LRINT, ECF_CONST, lrint, unary_convert)
-DEF_INTERNAL_FLT_FN (LROUND, ECF_CONST, lround, unary_convert)
+DEF_INTERNAL_FLT_FLOATN_FN (LRINT, ECF_CONST, lrint, unary_convert)
+DEF_INTERNAL_FLT_FLOATN_FN (LROUND, ECF_CONST, lround, unary_convert)
 DEF_INTERNAL_FLT_FN (LLCEIL, ECF_CONST, lceil, unary_convert)
 DEF_INTERNAL_FLT_FN (LLFLOOR, ECF_CONST, lfloor, unary_convert)
-DEF_INTERNAL_FLT_FN (LLRINT, ECF_CONST, lrint, unary_convert)
-DEF_INTERNAL_FLT_FN (LLROUND, ECF_CONST, lround, unary_convert)
+DEF_INTERNAL_FLT_FLOATN_FN (LLRINT, ECF_CONST, lrint, unary_convert)
+DEF_INTERNAL_FLT_FLOATN_FN (LLROUND, ECF_CONST, lround, unary_convert)
 
 /* FP rounding.  */
 DEF_INTERNAL_FLT_FLOATN_FN (CEIL, ECF_CONST, ceil, unary)