llvm/test/Transforms/FunctionSpecialization/noinline.ll

; RUN: opt -S --passes="ipsccp<func-spec>" -funcspec-for-literal-constant=false < %s | FileCheck %s
define dso_local i32 @p0(i32 noundef %x) {
entry:
  %add = add nsw i32 %x, 1
  ret i32 %add
}

define dso_local i32 @p1(i32 noundef %x) {
entry:
  %sub = add nsw i32 %x, -1
  ret i32 %sub
}

define internal fastcc i32 @f(i32 noundef %x, ptr nocapture noundef readonly %p) noinline {
entry:
  %call = tail call i32 %p(i32 noundef %x)
  %add = add nsw i32 %call, %x
  ret i32 %add
}

define dso_local i32 @g0(i32 noundef %x) {
entry:
  %call = tail call fastcc i32 @f(i32 noundef %x, ptr noundef nonnull @p0)
  ret i32 %call
}

define dso_local i32 @g1(i32 noundef %x) {
entry:
  %call = tail call fastcc i32 @f(i32 noundef %x, ptr noundef nonnull @p1)
  ret i32 %call
}

; Check that a noinline function is specialized, even if it's small.
; CHECK: @f.specialized.1
; CHECK: @f.specialized.2