Zig inline example

inline.zig

const C = struct {
  x : u16,

  inline fn post_inc(self: *C) u16 {
    const tmp = self.*.x;
    self.*.x += 1;
    return tmp;
  }
};

var c : C = C { .x = 0 };

export fn bar() u16 {
  const x = c.post_inc();
  const y = c.post_inc();
  return x + y;
}

export fn baz() u16 {
  const x = c.post_inc();
  const y = c.post_inc();
  const z = c.post_inc();
  return x + y + z;
}

//////// bar()
define i16 @bar() #2 !dbg !37 {
Entry:
  %x = alloca i16, align 2
  %y = alloca i16, align 2
  %0 = call fastcc i16 @C.post_inc(%C* @c), !dbg !46
  store i16 %0, i16* %x, align 2, !dbg !47
  call void @llvm.dbg.declare(metadata i16* %x, metadata !42, metadata !DIExpression()), !dbg !47
  %1 = call fastcc i16 @C.post_inc(%C* @c), !dbg !48
  store i16 %1, i16* %y, align 2, !dbg !49
  call void @llvm.dbg.declare(metadata i16* %y, metadata !44, metadata !DIExpression()), !dbg !49
  %2 = load i16, i16* %x, align 2, !dbg !50
  %3 = load i16, i16* %y, align 2, !dbg !52
  %4 = add nuw i16 %2, %3, !dbg !53
  ret i16 %4, !dbg !54
}

//////// baz()
define i16 @baz() #2 !dbg !77 {
Entry:
  %x = alloca i16, align 2
  %y = alloca i16, align 2
  %z = alloca i16, align 2
  %0 = call fastcc i16 @C.post_inc(%C* @c), !dbg !85
  store i16 %0, i16* %x, align 2, !dbg !86
  call void @llvm.dbg.declare(metadata i16* %x, metadata !79, metadata !DIExpression()), !dbg !86
  %1 = call fastcc i16 @C.post_inc(%C* @c), !dbg !87
  store i16 %1, i16* %y, align 2, !dbg !88
  call void @llvm.dbg.declare(metadata i16* %y, metadata !81, metadata !DIExpression()), !dbg !88
  %2 = call fastcc i16 @C.post_inc(%C* @c), !dbg !89
  store i16 %2, i16* %z, align 2, !dbg !90
  call void @llvm.dbg.declare(metadata i16* %z, metadata !83, metadata !DIExpression()), !dbg !90
  %3 = load i16, i16* %x, align 2, !dbg !91
  %4 = load i16, i16* %y, align 2, !dbg !93
  %5 = add nuw i16 %3, %4, !dbg !94
  %6 = load i16, i16* %z, align 2, !dbg !95
  %7 = add nuw i16 %5, %6, !dbg !96
  ret i16 %7, !dbg !97
}