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; Check that a remat that inserts rematerialized instructions in the single predecessor block works
; as expected
; RUN: opt < %s -O0 -S | FileCheck %s
; CHECK: %f.Frame = type { i32 }
define { i8*, i32 } @f(i8* %buffer, i32 %n) {
entry:
%id = call token @llvm.coro.id.retcon(i32 8, i32 4, i8* %buffer, i8* bitcast ({ i8*, i32 } (i8*, i1)* @f_prototype to i8*), i8* bitcast (i8* (i32)* @allocate to i8*), i8* bitcast (void (i8*)* @deallocate to i8*))
%hdl = call i8* @llvm.coro.begin(token %id, i8* null)
br label %loop
loop:
%n.val = phi i32 [ %n, %entry ], [ %inc, %resume1 ]
call void @print(i32 %n.val)
%inc1 = add i32 %n.val, 1
%inc2 = add i32 %inc1, 2
%inc3 = add i32 %inc2, 3
%inc4 = add i32 %inc3, 4
%inc5 = add i32 %inc4, 5
%inc6 = add i32 %inc5, 6
%unwind0 = call i1 (...) @llvm.coro.suspend.retcon.i1(i32 %inc6)
br i1 %unwind0, label %cleanup, label %resume
resume:
%unwind1 = call i1 (...) @llvm.coro.suspend.retcon.i1(i32 %inc6)
br i1 %unwind1, label %cleanup, label %resume1
resume1:
%inc = add i32 %n.val, 1
br label %loop
cleanup:
call i1 @llvm.coro.end(i8* %hdl, i1 0)
unreachable
}
declare token @llvm.coro.id.retcon(i32, i32, i8*, i8*, i8*, i8*)
declare i8* @llvm.coro.begin(token, i8*)
declare i1 @llvm.coro.suspend.retcon.i1(...)
declare i1 @llvm.coro.end(i8*, i1)
declare i8* @llvm.coro.prepare.retcon(i8*)
declare { i8*, i32 } @f_prototype(i8*, i1 zeroext)
declare noalias i8* @allocate(i32 %size)
declare void @deallocate(i8* %ptr)
declare void @print(i32)
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