46 lines
1.1 KiB
LLVM
46 lines
1.1 KiB
LLVM
; 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: @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
|
|
}
|
|
|