File: function-specialization-minsize2.ll

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llvm-toolchain-20 1%3A20.1.6-1~exp1
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; RUN: opt -passes="ipsccp<func-spec>" -funcspec-min-function-size=3 -S < %s | FileCheck %s

; Checks for callsites that have been annotated with MinSize. No specialisation
; expected here:
;
; CHECK-NOT: @compute.specialized.1
; CHECK-NOT: @compute.specialized.2

define i64 @main(i64 %x, i1 %flag) {
entry:
  br i1 %flag, label %plus, label %minus

plus:
  %tmp0 = call i64 @compute(i64 %x, ptr @plus) #0
  br label %merge

minus:
  %tmp1 = call i64 @compute(i64 %x, ptr @minus) #0
  br label %merge

merge:
  %tmp2 = phi i64 [ %tmp0, %plus ], [ %tmp1, %minus]
  ret i64 %tmp2
}

define internal i64 @compute(i64 %x, ptr %binop) {
entry:
  %tmp0 = call i64 %binop(i64 %x)
  ret i64 %tmp0
}

define internal i64 @plus(i64 %x) {
entry:
  %tmp0 = add i64 %x, 1
  ret i64 %tmp0
}

define internal i64 @minus(i64 %x) {
entry:
  %tmp0 = sub i64 %x, 1
  ret i64 %tmp0
}

attributes #0 = { minsize optsize }