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; Tests that allocas after coro.begin are properly that do not need to
; live on the frame are properly moved to the .resume function.
; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
define ptr @f() presplitcoroutine {
entry:
%id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
%size = call i32 @llvm.coro.size.i32()
%alloc = call ptr @malloc(i32 %size)
%hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)
%x = alloca i32
%sp1 = call i8 @llvm.coro.suspend(token none, i1 false)
switch i8 %sp1, label %suspend [i8 0, label %resume
i8 1, label %cleanup]
resume:
%x.value = load i32, ptr %x
call void @print(i32 %x.value)
br label %cleanup
cleanup:
%mem = call ptr @llvm.coro.free(token %id, ptr %hdl)
call void @free(ptr %mem)
br label %suspend
suspend:
call i1 @llvm.coro.end(ptr %hdl, i1 0)
ret ptr %hdl
}
; CHECK-LABEL: @f.resume(
; CHECK-NEXT: entry.resume:
; CHECK-NEXT: [[X:%.*]] = alloca i32, align 4
; CHECK: [[X_VALUE:%.*]] = load i32, ptr [[X]], align 4
; CHECK-NEXT: call void @print(i32 [[X_VALUE]])
; CHECK: call void @free(ptr [[FRAMEPTR:%.*]])
; CHECK: ret void
declare ptr @llvm.coro.free(token, ptr)
declare i32 @llvm.coro.size.i32()
declare i8 @llvm.coro.suspend(token, i1)
declare void @llvm.coro.resume(ptr)
declare void @llvm.coro.destroy(ptr)
declare token @llvm.coro.id(i32, ptr, ptr, ptr)
declare i1 @llvm.coro.alloc(token)
declare ptr @llvm.coro.begin(token, ptr)
declare i1 @llvm.coro.end(ptr, i1)
declare void @print(i32)
declare noalias ptr @malloc(i32)
declare void @free(ptr)
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