blob: e9db5d464f1119d445f89e929d9db3172db152a9 [file] [log] [blame]
; 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 i8* @f() "coroutine.presplit"="1" {
%id = call token 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 = 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]
%x.value = load i32, i32* %x
call void @print(i32 %x.value)
br label %cleanup
%mem = call i8* %id, i8* %hdl)
call void @free(i8* %mem)
br label %suspend
call i1 @llvm.coro.end(i8* %hdl, i1 0)
ret i8* %hdl
; CHECK-LABEL: @f.resume(
; CHECK-NEXT: entry.resume:
; CHECK-NEXT: [[VFRAME:%.*]] = bitcast %f.Frame* [[FRAMEPTR:%.*]] to i8*
; CHECK-NEXT: [[X:%.*]] = alloca i32, align 4
; CHECK: [[X_VALUE:%.*]] = load i32, i32* [[X]], align 4
; CHECK-NEXT: call void @print(i32 [[X_VALUE]])
; CHECK: call void @free(i8* [[VFRAME]])
; CHECK: ret void
declare i8*, 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, 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*)