[gcc r12-3196] MIPS: use N64 ABI by default if the triple end with -gnuabi64

[Xi Ruoyao <xry111@gcc.gnu.org>]

https://gcc.gnu.org/g:91f78b673b1f8d5bca52b1947206f71c2ffa4f60

commit r12-3196-g91f78b673b1f8d5bca52b1947206f71c2ffa4f60
Author: YunQiang Su <yunqiang.su@cipunited.com>
Date:   Thu Aug 26 23:56:58 2021 -0400

    MIPS: use N64 ABI by default if the triple end with -gnuabi64
    
    gcc/ChangeLog:
    
            PR target/102089
            * config.gcc: MIPS: use N64 ABI by default if the triple end
              with -gnuabi64, which is used by Debian since 2013.

Diff:
---
 gcc/config.gcc | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/gcc/config.gcc b/gcc/config.gcc
index 0ff5cac1594..0c91be6f35b 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -2553,16 +2553,30 @@ mips*-*-linux*)				# Linux MIPS, either endian.
 			target_cpu_default=MASK_SOFT_FLOAT_ABI
 			enable_mips_multilibs="yes"
 			;;
+		mipsisa64r6*-*-linux-gnuabi64)
+			default_mips_abi=64
+			default_mips_arch=mips64r6
+			enable_mips_multilibs="yes"
+			;;
 		mipsisa64r6*-*-linux*)
 			default_mips_abi=n32
 			default_mips_arch=mips64r6
 			enable_mips_multilibs="yes"
 			;;
+		mipsisa64r2*-*-linux-gnuabi64)
+			default_mips_abi=64
+			default_mips_arch=mips64r2
+			enable_mips_multilibs="yes"
+			;;
 		mipsisa64r2*-*-linux*)
 			default_mips_abi=n32
 			default_mips_arch=mips64r2
 			enable_mips_multilibs="yes"
 			;;
+		mips64*-*-linux-gnuabi64 | mipsisa64*-*-linux-gnuabi64)
+			default_mips_abi=64
+			enable_mips_multilibs="yes"
+			;;
 		mips64*-*-linux* | mipsisa64*-*-linux*)
 			default_mips_abi=n32
 			enable_mips_multilibs="yes"