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; RUN: opt -function-specialization -func-specialization-avg-iters-cost=3 -func-specialization-size-threshold=10 -S < %s | FileCheck %s
; Check that the loop depth results in a larger specialization bonus.
; CHECK: @foo.1(
; CHECK: @foo.2(
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
@A = external dso_local constant i32, align 4
@B = external dso_local constant i32, align 4
@C = external dso_local constant i32, align 4
@D = external dso_local constant i32, align 4
declare i1 @cond_begin()
declare i1 @cond_end()
declare i1 @getCond()
define internal i32 @foo(i32 %x, i32* %b, i32* %c) {
entry:
br label %loop.entry
loop.entry:
br label %loop2.entry
loop2.entry:
br label %loop2.body
loop2.body:
%0 = load i32, i32* %b, align 4
%1 = load i32, i32* %c, align 4
%add.0 = add nsw i32 %0, %1
%add = add nsw i32 %add.0, %x
br label %loop2.end
loop2.end:
%cond.end = call i1 @cond_end()
br i1 %cond.end, label %loop2.entry, label %loop.end
loop.end:
%cond2.end = call i1 @getCond()
br i1 %cond2.end, label %loop.entry, label %return
return:
ret i32 %add
}
define dso_local i32 @bar(i32 %x, i32 %y) {
entry:
%tobool = icmp ne i32 %x, 0
br i1 %tobool, label %if.then, label %if.else
if.then:
%call = call i32 @foo(i32 %x, i32* @A, i32* @C)
br label %return
if.else:
%call1 = call i32 @foo(i32 %y, i32* @B, i32* @D)
br label %return
return:
%retval.0 = phi i32 [ %call, %if.then ], [ %call1, %if.else ]
ret i32 %retval.0
}
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