llvm/test/Transforms/Inline/inline-optsize.ll

; RUN: opt -S -O2 < %s | FileCheck %s

@a = global i32 4

; This function should be larger than the inline threshold for -Oz (25), but
; smaller than the inline threshold for optsize (75).
define i32 @inner() {
  call void @extern()
  %a1 = load volatile i32, ptr @a
  %x1 = add i32 %a1,  %a1
  %a2 = load volatile i32, ptr @a
  %x2 = add i32 %x1, %a2
  %a3 = load volatile i32, ptr @a
  %x3 = add i32 %x2, %a3
  %a4 = load volatile i32, ptr @a
  %x4 = add i32 %x3, %a4
  %a5 = load volatile i32, ptr @a
  %x5 = add i32 %x3, %a5
  ret i32 %x5
}

; @inner() should be inlined for optsize
; CHECK-NOT: call
define i32 @outer() optsize {
   %r = call i32 @inner()
   ret i32 %r
}

; @inner() should not be inlined for minsize
; CHECK: call
define i32 @outer2() minsize {
   %r = call i32 @inner()
   ret i32 %r
}

declare void @extern()