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; Check that we should not reuse alloca sotrage in O0.
; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s
%struct.big_structure = type { [500 x i8] }
declare void @consume(ptr)
; Function Attrs: noinline optnone uwtable
define ptr @f(i1 %cond) presplitcoroutine {
entry:
%data = alloca %struct.big_structure, align 1
%data2 = alloca %struct.big_structure, align 1
%id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
%size = call i32 @llvm.coro.size.i32()
%alloc = call ptr @malloc(i32 %size)
%hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)
br i1 %cond, label %then, label %else
then:
call void @llvm.lifetime.start.p0(i64 500, ptr nonnull %data)
call void @consume(ptr %data)
%suspend.value = call i8 @llvm.coro.suspend(token none, i1 false)
switch i8 %suspend.value, label %coro.ret [i8 0, label %resume
i8 1, label %cleanup1]
resume:
call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %data)
br label %cleanup1
cleanup1:
call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %data)
br label %cleanup
else:
call void @llvm.lifetime.start.p0(i64 500, ptr nonnull %data2)
call void @consume(ptr %data2)
%suspend.value2 = call i8 @llvm.coro.suspend(token none, i1 false)
switch i8 %suspend.value2, label %coro.ret [i8 0, label %resume2
i8 1, label %cleanup2]
resume2:
call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %data2)
br label %cleanup2
cleanup2:
call void @llvm.lifetime.end.p0(i64 500, ptr nonnull %data2)
br label %cleanup
cleanup:
%mem = call ptr @llvm.coro.free(token %id, ptr %hdl)
call void @free(ptr %mem)
br label %coro.ret
coro.ret:
call i1 @llvm.coro.end(ptr %hdl, i1 0, token none)
ret ptr %hdl
}
; CHECK-LABEL: @f(
; CHECK: call ptr @malloc(i32 1024)
declare ptr @llvm.coro.free(token, ptr)
declare i32 @llvm.coro.size.i32()
declare i8 @llvm.coro.suspend(token, i1)
declare void @llvm.coro.resume(ptr)
declare void @llvm.coro.destroy(ptr)
declare token @llvm.coro.id(i32, ptr, ptr, ptr)
declare i1 @llvm.coro.alloc(token)
declare ptr @llvm.coro.begin(token, ptr)
declare i1 @llvm.coro.end(ptr, i1, token)
declare noalias ptr @malloc(i32)
declare double @print(double)
declare void @free(ptr)
declare void @llvm.lifetime.start.p0(i64, ptr nocapture)
declare void @llvm.lifetime.end.p0(i64, ptr nocapture)
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