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; Tests that if an alloca is escaped through storing the address,
; the alloac will be put on the frame.
; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
define i8* @f() "coroutine.presplit"="1" {
entry:
%x = alloca i64
%y = alloca i32*
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%size = call i32 @llvm.coro.size.i32()
%alloc = call i8* @malloc(i32 %size)
%hdl = call i8* @llvm.coro.begin(token %id, i8* %alloc)
%x.alias = bitcast i64* %x to i32*
store i32* %x.alias, i32** %y
%sp1 = call i8 @llvm.coro.suspend(token none, i1 false)
switch i8 %sp1, label %suspend [i8 0, label %resume
i8 1, label %cleanup]
resume:
%x1 = load i32*, i32** %y
call void @print(i32* %x1)
br label %cleanup
cleanup:
%mem = call i8* @llvm.coro.free(token %id, i8* %hdl)
call void @free(i8* %mem)
br label %suspend
suspend:
call i1 @llvm.coro.end(i8* %hdl, i1 0)
ret i8* %hdl
}
; CHECK: %f.Frame = type { void (%f.Frame*)*, void (%f.Frame*)*, i64, i32*, i1 }
; CHECK-LABEL: define i8* @f()
; CHECK: %x.reload.addr = getelementptr inbounds %f.Frame, %f.Frame* %FramePtr, i32 0, i32 2
; CHECK: %y.reload.addr = getelementptr inbounds %f.Frame, %f.Frame* %FramePtr, i32 0, i32 3
; CHECK: %x.alias = bitcast i64* %x.reload.addr to i32*
; CHECK: store i32* %x.alias, i32** %y.reload.addr, align 8
declare i8* @llvm.coro.free(token, i8*)
declare i32 @llvm.coro.size.i32()
declare i8 @llvm.coro.suspend(token, i1)
declare void @llvm.coro.resume(i8*)
declare void @llvm.coro.destroy(i8*)
declare token @llvm.coro.id(i32, i8*, i8*, i8*)
declare i1 @llvm.coro.alloc(token)
declare i8* @llvm.coro.begin(token, i8*)
declare i1 @llvm.coro.end(i8*, i1)
declare void @print(i32*)
declare noalias i8* @malloc(i32)
declare void @free(i8*)
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