Fix multiple inline asm blocks in the same function

Author: bjorn3

src/base.rs

@@ -53,6 +53,8 @@ pub(crate) fn trans_fn<'tcx, B: Backend + 'static>(
         vtables: &mut cx.vtables,
         source_info_set: indexmap::IndexSet::new(),
         next_ssa_var: 0,
+
+        inline_asm_index: 0,
     };
 
     let arg_uninhabited = fx.mir.args_iter().any(|arg| fx.layout_of(fx.monomorphize(&fx.mir.local_decls[arg].ty)).abi.is_uninhabited());

src/common.rs

@@ -278,6 +278,8 @@ pub(crate) struct FunctionCx<'clif, 'tcx, B: Backend + 'static> {
 
     /// This should only be accessed by `CPlace::new_var`.
     pub(crate) next_ssa_var: u32,
+
+    pub(crate) inline_asm_index: u32,
 }
 
 impl<'tcx, B: Backend> LayoutOf for FunctionCx<'_, 'tcx, B> {

src/inline_asm.rs

@@ -68,7 +68,9 @@ pub(crate) fn codegen_inline_asm<'tcx>(
         }
     }
 
-    let asm_name = format!("{}__inline_asm_{}", fx.tcx.symbol_name(fx.instance).name, /*FIXME*/0);
+    let inline_asm_index = fx.inline_asm_index;
+    fx.inline_asm_index += 1;
+    let asm_name = format!("{}__inline_asm_{}", fx.tcx.symbol_name(fx.instance).name, inline_asm_index);
 
     let generated_asm = generate_asm_wrapper(&asm_name, InlineAsmArch::X86_64, options, template, clobbered_regs, &inputs, &outputs);
     fx.global_asm.push_str(&generated_asm);