Fix Clang error with JIT when EXT_M is disabled

eleanorLYJ · eleanorLYJ · commit c5607deae4e6 · 2025-01-07T00:13:33.000+08:00
When using 'make ENABLE_EXT_M=0 ENABLE_JIT=1 CC=clang', the following
error is observed:

src/jit.c:728:20: error: unused function 'emit_alu64_imm8' [-Werror,-Wunused-function]
  728 | static inline void emit_alu64_imm8(struct jit_state *state,
      |                    ^~~~~~~~~~~~~~~

Fix this by guarding the 'emit_alu64_imm8' function definition with
RV32_HAS(EXT_M) macro. This ensures the function is only defined
when the EXT_M is enabled.
diff --git a/src/jit.c b/src/jit.c
@@ -725,6 +725,7 @@ static inline void emit_alu64(struct jit_state *state, int op, int src, int dst)
 #endif
 }
 
+#if RV32_HAS(EXT_M)
 static inline void emit_alu64_imm8(struct jit_state *state,
                                    int op,
                                    int src UNUSED,
@@ -742,6 +743,7 @@ static inline void emit_alu64_imm8(struct jit_state *state,
     }
 #endif
 }
+#endif
 
 /* Register to register mov */
 static inline void emit_mov(struct jit_state *state, int src, int dst)

Original file line number	Diff line number	Diff line change
`@@ -725,6 +725,7 @@ static inline void emit_alu64(struct jit_state *state, int op, int src, int dst)`
`725`	`725`	`#endif`
`726`	`726`	`}`
`727`	`727`
	`728`	`+#if RV32_HAS(EXT_M)`
`728`	`729`	`static inline void emit_alu64_imm8(struct jit_state *state,`
`729`	`730`	`int op,`
`730`	`731`	`int src UNUSED,`
`@@ -742,6 +743,7 @@ static inline void emit_alu64_imm8(struct jit_state *state,`
`742`	`743`	`}`
`743`	`744`	`#endif`
`744`	`745`	`}`
	`746`	`+#endif`
`745`	`747`
`746`	`748`	`/* Register to register mov */`
`747`	`749`	`static inline void emit_mov(struct jit_state *state, int src, int dst)`