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; Tests that the number elided coroutine is record correctly.
; REQUIRES: asserts
;
; RUN: opt < %s -S \
; RUN: -passes='cgscc(inline,function(coro-elide,dce),inline,function(coro-elide,dce))' -stats 2>&1 \
; RUN: | FileCheck %s
; RUN: opt < %s --disable-output \
; RUN: -passes='cgscc(inline,function(coro-elide,dce),inline,function(coro-elide,dce))' \
; RUN: -coro-elide-info-output-file=%t && \
; RUN: cat %t \
; RUN: | FileCheck %s --check-prefix=FILE
; CHECK: 2 coro-elide - The # of coroutine get elided.
; FILE: Elide f in callResume
; FILE: Elide f in callResumeMultiRetDommmed
declare void @print(i32) nounwind
; resume part of the coroutine
define fastcc void @f.resume(ptr dereferenceable(1)) {
tail call void @print(i32 0)
ret void
}
; destroy part of the coroutine
define fastcc void @f.destroy(ptr) {
tail call void @print(i32 1)
ret void
}
; cleanup part of the coroutine
define fastcc void @f.cleanup(ptr) {
tail call void @print(i32 2)
ret void
}
@f.resumers = internal constant [3 x ptr] [ptr @f.resume,
ptr @f.destroy,
ptr @f.cleanup]
; a coroutine start function
define ptr @f() {
entry:
%id = call token @llvm.coro.id(i32 0, ptr null,
ptr @f,
ptr @f.resumers)
%alloc = call i1 @llvm.coro.alloc(token %id)
%hdl = call ptr @llvm.coro.begin(token %id, ptr null)
ret ptr %hdl
}
define void @callResume() {
entry:
%hdl = call ptr @f()
%0 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 0)
call fastcc void %0(ptr %hdl)
%1 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 1)
call fastcc void %1(ptr %hdl)
ret void
}
define void @callResumeMultiRet(i1 %b) {
entry:
%hdl = call ptr @f()
%0 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 0)
call fastcc void %0(ptr %hdl)
br i1 %b, label %destroy, label %ret
destroy:
%1 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 1)
call fastcc void %1(ptr %hdl)
ret void
ret:
ret void
}
define void @callResumeMultiRetDommmed(i1 %b) {
entry:
%hdl = call ptr @f()
%0 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 0)
call fastcc void %0(ptr %hdl)
%1 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 1)
call fastcc void %1(ptr %hdl)
br i1 %b, label %destroy, label %ret
destroy:
ret void
ret:
ret void
}
define void @eh() personality ptr null {
entry:
%hdl = call ptr @f()
%0 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 0)
invoke void %0(ptr %hdl)
to label %cont unwind label %ehcleanup
cont:
ret void
ehcleanup:
%tok = cleanuppad within none []
cleanupret from %tok unwind to caller
}
; no devirtualization here, since coro.begin info parameter is null
define void @no_devirt_info_null() {
entry:
%id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
%hdl = call ptr @llvm.coro.begin(token %id, ptr null)
%0 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 0)
call fastcc void %0(ptr %hdl)
%1 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 1)
call fastcc void %1(ptr %hdl)
ret void
}
; no devirtualization here, since coro.begin is not visible
define void @no_devirt_no_begin(ptr %hdl) {
entry:
%0 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 0)
call fastcc void %0(ptr %hdl)
%1 = call ptr @llvm.coro.subfn.addr(ptr %hdl, i8 1)
call fastcc void %1(ptr %hdl)
ret void
}
declare token @llvm.coro.id(i32, ptr, ptr, ptr)
declare ptr @llvm.coro.begin(token, ptr)
declare ptr @llvm.coro.frame()
declare ptr @llvm.coro.subfn.addr(ptr, i8)
declare i1 @llvm.coro.alloc(token)
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