1; Tests that the coro.align intrinsic could be lowered to correct alignment 2; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s 3 4define ptr @f() presplitcoroutine { 5entry: 6 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null) 7 %size = call i32 @llvm.coro.size.i32() 8 %align = call i32 @llvm.coro.align.i32() 9 %alloc = call ptr @aligned_alloc(i32 %align, i32 %size) 10 %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc) 11 %sp1 = call i8 @llvm.coro.suspend(token none, i1 false) 12 switch i8 %sp1, label %suspend [i8 0, label %resume 13 i8 1, label %cleanup] 14resume: 15 br label %cleanup 16 17cleanup: 18 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl) 19 call void @free(ptr %mem) 20 br label %suspend 21 22suspend: 23 call i1 @llvm.coro.end(ptr %hdl, i1 0, token none) 24 ret ptr %hdl 25} 26 27; %x needs to go to the frame since it's escaped; %y will stay as local since it doesn't escape. 28; CHECK: %f.Frame = type { ptr, ptr, i1 } 29; CHECK-LABEL: define ptr @f() 30; CHECK: %[[ALLOC:.+]] = call ptr @aligned_alloc(i32 8, i32 24) 31; CHECK-NEXT: call noalias nonnull ptr @llvm.coro.begin(token %id, ptr %[[ALLOC]]) 32 33declare ptr @llvm.coro.free(token, ptr) 34declare i32 @llvm.coro.size.i32() 35declare i32 @llvm.coro.align.i32() 36declare i8 @llvm.coro.suspend(token, i1) 37declare void @llvm.coro.resume(ptr) 38declare void @llvm.coro.destroy(ptr) 39 40declare token @llvm.coro.id(i32, ptr, ptr, ptr) 41declare i1 @llvm.coro.alloc(token) 42declare ptr @llvm.coro.begin(token, ptr) 43declare i1 @llvm.coro.end(ptr, i1, token) 44 45declare noalias ptr @aligned_alloc(i32, i32) 46declare void @free(ptr) 47