diff options
Diffstat (limited to 'test/Transforms/Coroutines/coro-materialize.ll')
-rw-r--r-- | test/Transforms/Coroutines/coro-materialize.ll | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/test/Transforms/Coroutines/coro-materialize.ll b/test/Transforms/Coroutines/coro-materialize.ll new file mode 100644 index 000000000000..95e8a049ad2f --- /dev/null +++ b/test/Transforms/Coroutines/coro-materialize.ll @@ -0,0 +1,52 @@ +; Verifies that we materialize instruction across suspend points +; RUN: opt < %s -coro-split -S | FileCheck %s + +define i8* @f(i32 %n) "coroutine.presplit"="1" { +entry: + %id = call token @llvm.coro.id(i32 0, i8* null, i8* null, i8* null) + %size = call i32 @llvm.coro.size.i32() + %alloc = call i8* @malloc(i32 %size) + %hdl = call i8* @llvm.coro.begin(token %id, i8* %alloc) + + %inc1 = add i32 %n, 1 + %sp1 = call i8 @llvm.coro.suspend(token none, i1 false) + switch i8 %sp1, label %suspend [i8 0, label %resume1 + i8 1, label %cleanup] +resume1: + %inc2 = add i32 %inc1, 1 + %sp2 = call i8 @llvm.coro.suspend(token none, i1 false) + switch i8 %sp1, label %suspend [i8 0, label %resume2 + i8 1, label %cleanup] + +resume2: + call void @print(i32 %inc1) + call void @print(i32 %inc2) + 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 +} + +; See that we only spilled one value +; CHECK: %f.Frame = type { void (%f.Frame*)*, void (%f.Frame*)*, i1, i1, i32 } +; CHECK-LABEL: @f( + +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*) |