| ; Tests that coro-split can convert functions with hidden visibility. |
| ; These may be generated by a frontend such as Clang, when inlining with |
| ; '-fvisibility-inlines-hidden'. |
| ; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s |
| |
| define hidden i8* @f() "coroutine.presplit"="1" { |
| entry: |
| %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null) |
| %need.alloc = call i1 @llvm.coro.alloc(token %id) |
| br i1 %need.alloc, label %dyn.alloc, label %begin |
| |
| dyn.alloc: |
| %size = call i32 @llvm.coro.size.i32() |
| %alloc = call i8* @malloc(i32 %size) |
| br label %begin |
| |
| begin: |
| %phi = phi i8* [ null, %entry ], [ %alloc, %dyn.alloc ] |
| %hdl = call i8* @llvm.coro.begin(token %id, i8* %phi) |
| call void @print(i32 0) |
| %0 = call i8 @llvm.coro.suspend(token none, i1 false) |
| switch i8 %0, label %suspend [i8 0, label %resume |
| i8 1, label %cleanup] |
| resume: |
| call void @print(i32 1) |
| 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 |
| } |
| |
| ; CHECK-LABEL: hidden{{.*}}@f( |
| ; CHECK: call i8* @malloc |
| ; CHECK: @llvm.coro.begin(token %id, i8* %phi) |
| ; CHECK: store void (%f.Frame*)* @f.resume, void (%f.Frame*)** %resume.addr |
| ; CHECK: %[[SEL:.+]] = select i1 %need.alloc, void (%f.Frame*)* @f.destroy, void (%f.Frame*)* @f.cleanup |
| ; CHECK: store void (%f.Frame*)* %[[SEL]], void (%f.Frame*)** %destroy.addr |
| ; CHECK: call void @print(i32 0) |
| ; CHECK-NOT: call void @print(i32 1) |
| ; CHECK-NOT: call void @free( |
| ; CHECK: ret i8* %hdl |
| |
| ; CHECK-LABEL: internal{{.*}}@f.resume( |
| ; CHECK-NOT: call i8* @malloc |
| ; CHECK-NOT: call void @print(i32 0) |
| ; CHECK: call void @print(i32 1) |
| ; CHECK-NOT: call void @print(i32 0) |
| ; CHECK: call void @free( |
| ; CHECK: ret void |
| |
| ; CHECK-LABEL: internal{{.*}}@f.destroy( |
| ; CHECK-NOT: call i8* @malloc |
| ; CHECK-NOT: call void @print( |
| ; CHECK: call void @free( |
| ; CHECK: ret void |
| |
| ; CHECK-LABEL: internal{{.*}}@f.cleanup( |
| ; CHECK-NOT: call i8* @malloc |
| ; CHECK-NOT: call void @print( |
| ; CHECK-NOT: call void @free( |
| ; CHECK: ret void |
| |
| declare i8* @llvm.coro.free(token, i8*) |
| declare i32 @llvm.coro.size.i32() |
| declare i8 @llvm.coro.suspend(token, i1) |
| declare void @llvm.coro.resume(i8*) |
| declare void @llvm.coro.destroy(i8*) |
| |
| 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) |
| declare void @free(i8*) willreturn |