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| ; Tests that coro-split passes initialized values to coroutine frame allocator.
; RUN: opt < %s -coro-split -S | FileCheck %s
define i8* @f(i32 %argument) "coroutine.presplit"="1" {
entry:
%argument.addr = alloca i32, align 4
%incremented = add i32 %argument, 1
store i32 %incremented, i32* %argument.addr, align 4
%id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null)
%need.alloc = call i1 @llvm.coro.alloc(token %id)
br i1 %need.alloc, label %dyn.alloc, label %begin
dyn.alloc:
%size = call i32 @llvm.coro.size.i32()
%allocator_argument = load i32, i32* %argument.addr, align 4
%alloc = call i8* @custom_alloctor(i32 %size, i32 %allocator_argument)
br label %begin
begin:
%phi = phi i8* [ null, %entry ], [ %alloc, %dyn.alloc ]
%hdl = call i8* @llvm.coro.begin(token %id, i8* %phi)
%print_argument = load i32, i32* %argument.addr, align 4
call void @print(i32 %print_argument)
%0 = call i8 @llvm.coro.suspend(token none, i1 false)
switch i8 %0, label %suspend [i8 0, label %resume
i8 1, label %cleanup]
resume:
call void @print(i32 1)
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-LABEL: @f(
; CHECK: %argument.addr = alloca i32
; CHECK: %incremented = add i32 %argument, 1
; CHECK-NEXT: store i32 %incremented, i32* %argument.addr
; CHECK-LABEL: dyn.alloc:
; CHECK: %allocator_argument = load i32, i32* %argument.addr
; CHECK: %alloc = call i8* @custom_alloctor(i32 24, i32 %allocator_argument)
; CHECK-LABEL: begin:
; CHECK: %print_argument = load i32, i32* %argument.addr
; CHECK: call void @print(i32 %print_argument)
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 noalias i8* @custom_alloctor(i32, i32)
declare void @print(i32)
declare void @free(i8*)
|