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; Check that we can spills coro.begin from an inlined inner coroutine.
; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
%g.Frame = type { void (%g.Frame*)*, void (%g.Frame*)*, i32, i1, i32 }
@g.resumers = private constant [3 x void (%g.Frame*)*] [void (%g.Frame*)* @g.dummy, void (%g.Frame*)* @g.dummy, void (%g.Frame*)* @g.dummy]
declare void @g.dummy(%g.Frame*)
declare i8* @g()
define i8* @f() "coroutine.presplit"="1" {
entry:
%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)
%innerid = call token @llvm.coro.id(i32 0, i8* null, i8* bitcast (i8* ()* @g to i8*), i8* bitcast ([3 x void (%g.Frame*)*]* @g.resumers to i8*))
%innerhdl = call noalias nonnull i8* @llvm.coro.begin(token %innerid, i8* null)
%gframe = bitcast i8* %innerhdl to %g.Frame*
%tok = call i8 @llvm.coro.suspend(token none, i1 false)
switch i8 %tok, label %suspend [i8 0, label %resume
i8 1, label %cleanup]
resume:
%gvar.addr = getelementptr inbounds %g.Frame, %g.Frame* %gframe, i32 0, i32 4
%gvar = load i32, i32* %gvar.addr
call void @print.i32(i32 %gvar)
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
}
; See if the i8* for coro.begin was added to f.Frame
; CHECK-LABEL: %f.Frame = type { void (%f.Frame*)*, void (%f.Frame*)*, i8*, i1 }
; See if the g's coro.begin was spilled into the frame
; CHECK-LABEL: @f(
; CHECK: %innerid = call token @llvm.coro.id(i32 0, i8* null, i8* bitcast (i8* ()* @g to i8*), i8* bitcast ([3 x void (%g.Frame*)*]* @g.resumers to i8*))
; CHECK: %innerhdl = call noalias nonnull i8* @llvm.coro.begin(token %innerid, i8* null)
; CHECK: %[[spilladdr:.+]] = getelementptr inbounds %f.Frame, %f.Frame* %FramePtr, i32 0, i32 2
; CHECK: store i8* %innerhdl, i8** %[[spilladdr]]
; See if the coro.begin was loaded from the frame
; CHECK-LABEL: @f.resume(
; CHECK: %[[innerhdlAddr:.+]] = getelementptr inbounds %f.Frame, %f.Frame* %{{.+}}, i32 0, i32 2
; CHECK: %[[innerhdl:.+]] = load i8*, i8** %[[innerhdlAddr]]
; CHECK: %[[gframe:.+]] = bitcast i8* %[[innerhdl]] to %g.Frame*
; CHECK: %[[gvarAddr:.+]] = getelementptr inbounds %g.Frame, %g.Frame* %[[gframe]], i32 0, i32 4
; CHECK: %[[gvar:.+]] = load i32, i32* %[[gvarAddr]]
; CHECK: call void @print.i32(i32 %[[gvar]])
declare i8* @llvm.coro.free(token, i8*)
declare i32 @llvm.coro.size.i32()
declare i8 @llvm.coro.suspend(token, i1)
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* @malloc(i32)
declare void @print.i32(i32)
declare void @free(i8*)
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