; ModuleID = 'easy.c'                                
source_filename = "assign_test.sy"  
; 注释: target的开始
target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
; 注释: target的结束

@.str = private unnamed_addr constant [4 x i8] c"%d\0A\00", align 1

define i32 @add(i32 %a, i32 %b) {
  %1 = add nsw i32 %a, %b
  %2 = sub i32 %1, 1
  ret i32 %2
}

define i32 @main() {
  %1 = alloca i32, align 4  ;a
  %2 = alloca i32, align 4  ;b
  %3 = alloca i32, align 4  ;c
  store i32 3, i32* %1, align 4
  store i32 2, i32* %2, align 4
  store i32 5, i32* %3, align 4
  %4 = load i32, i32* %1, align 4
  %5 = load i32, i32* %2, align 4
  %6 = load i32, i32* %3, align 4
  %7 = call i32 @add(i32 %4, i32 %5)  ;add(a,b)
  %8 = add nsw i32 %6, %7
  ret i32 %8
}

attributes #0 = { noinline nounwind optnone uwtable "correctly-rounded-divide-sqrt-fp-math"="false" "disable-tail-calls"="false" "frame-pointer"="all" "less-precise-fpmad"="false" "min-legal-vector-width"="0" "no-infs-fp-math"="false" "no-jump-tables"="false" "no-nans-fp-math"="false" "no-signed-zeros-fp-math"="false" "no-trapping-math"="false" "stack-protector-buffer-size"="8" "target-cpu"="x86-64" "target-features"="+cx8,+fxsr,+mmx,+sse,+sse2,+x87" "unsafe-fp-math"="false" "use-soft-float"="false" }

!llvm.module.flags = !{!0}
!llvm.ident = !{!1}

!0 = !{i32 1, !"wchar_size", i32 4}
!1 = !{!"clang version 10.0.1 "}