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; Test that functions with dynamic allocas get inlined in a case where
; naively inlining it would result in a miscompilation.
; Functions with dynamic allocas can only be inlined into functions that
; already have dynamic allocas.
; RUN: opt < %s -inline -S | FileCheck %s
;
; FIXME: This test is xfailed because the inline cost rewrite disabled *all*
; inlining of functions which contain a dynamic alloca. It should be re-enabled
; once that functionality is restored.
; XFAIL: *
declare void @ext(i32*)
define internal void @callee(i32 %N) {
%P = alloca i32, i32 %N
call void @ext(i32* %P)
ret void
}
define void @foo(i32 %N) {
; CHECK-LABEL: @foo(
; CHECK: alloca i32, i32 %{{.*}}
; CHECK: call i8* @llvm.stacksave()
; CHECK: alloca i32, i32 %{{.*}}
; CHECK: call void @ext
; CHECK: call void @llvm.stackrestore
; CHECK: ret
entry:
%P = alloca i32, i32 %N
call void @ext(i32* %P)
br label %loop
loop:
%count = phi i32 [ 0, %entry ], [ %next, %loop ]
%next = add i32 %count, 1
call void @callee(i32 %N)
%cond = icmp eq i32 %count, 100000
br i1 %cond, label %out, label %loop
out:
ret void
}
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