From 08fc45177196317a9f6d4c4f6d105e0b45381111 Mon Sep 17 00:00:00 2001
From: WANG Rui <wangrui@loongson.cn>
Date: Thu, 4 May 2023 23:58:19 +0800
Subject: [PATCH] asm: loongarch64: Implementation of clobber_abi

---
 compiler/rustc_target/src/asm/mod.rs | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/compiler/rustc_target/src/asm/mod.rs b/compiler/rustc_target/src/asm/mod.rs
index 266691b2c88c3..705966f52370e 100644
--- a/compiler/rustc_target/src/asm/mod.rs
+++ b/compiler/rustc_target/src/asm/mod.rs
@@ -839,6 +839,7 @@ pub enum InlineAsmClobberAbi {
     AArch64,
     AArch64NoX18,
     RiscV,
+    LoongArch,
 }
 
 impl InlineAsmClobberAbi {
@@ -880,6 +881,10 @@ impl InlineAsmClobberAbi {
                 "C" | "system" | "efiapi" => Ok(InlineAsmClobberAbi::RiscV),
                 _ => Err(&["C", "system", "efiapi"]),
             },
+            InlineAsmArch::LoongArch64 => match name {
+                "C" | "system" | "efiapi" => Ok(InlineAsmClobberAbi::LoongArch),
+                _ => Err(&["C", "system", "efiapi"]),
+            },
             _ => Err(&[]),
         }
     }
@@ -1022,6 +1027,21 @@ impl InlineAsmClobberAbi {
                     v24, v25, v26, v27, v28, v29, v30, v31,
                 }
             },
+            InlineAsmClobberAbi::LoongArch => clobbered_regs! {
+                LoongArch LoongArchInlineAsmReg {
+                    // ra
+                    r1,
+                    // a0-a7
+                    r4, r5, r6, r7, r8, r9, r10, r11,
+                    // t0-t8
+                    r12, r13, r14, r15, r16, r17, r18, r19, r20,
+                    // fa0-fa7
+                    f0, f1, f2, f3, f4, f5, f6, f7,
+                    // ft0-ft15
+                    f8, f9, f10, f11, f12, f13, f14, f15,
+                    f16, f17, f18, f19, f20, f21, f22, f23,
+                }
+            },
         }
     }
 }