| ; RUN: opt < %s -enable-coroutines -O2 -S | FileCheck %s |
| target datalayout = "E-p:32:32" |
| |
| define i8* @f(i8* %buffer, i32 %n, i8** swifterror %errorslot) { |
| entry: |
| %id = call token @llvm.coro.id.retcon(i32 8, i32 4, i8* %buffer, i8* bitcast (i8* (i8*, i1, i8**)* @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, %resume ] |
| call void @print(i32 %n.val) |
| call void @maybeThrow(i8** swifterror %errorslot) |
| %errorload1 = load i8*, i8** %errorslot |
| call void @logError(i8* %errorload1) |
| %suspend_result = call { i1, i8** } (...) @llvm.coro.suspend.retcon.i1p0p0i8() |
| %unwind0 = extractvalue { i1, i8** } %suspend_result, 0 |
| br i1 %unwind0, label %cleanup, label %resume |
| |
| resume: |
| %inc = add i32 %n.val, 1 |
| br label %loop |
| |
| cleanup: |
| call i1 @llvm.coro.end(i8* %hdl, i1 0) |
| unreachable |
| } |
| |
| ; CHECK-LABEL: define i8* @f(i8* %buffer, i32 %n, i8** swifterror %errorslot) |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[T0:%.*]] = bitcast i8* %buffer to i32* |
| ; CHECK-NEXT: store i32 %n, i32* [[T0]], align 4 |
| ; CHECK-NEXT: call void @print(i32 %n) |
| ; TODO: figure out a way to eliminate this |
| ; CHECK-NEXT: store i8* null, i8** %errorslot |
| ; CHECK-NEXT: call void @maybeThrow(i8** nonnull swifterror %errorslot) |
| ; CHECK-NEXT: [[T1:%.*]] = load i8*, i8** %errorslot |
| ; CHECK-NEXT: call void @logError(i8* [[T1]]) |
| ; CHECK-NEXT: store i8* [[T1]], i8** %errorslot |
| ; CHECK-NEXT: ret i8* bitcast (i8* (i8*, i1, i8**)* @f.resume.0 to i8*) |
| ; CHECK-NEXT: } |
| |
| ; CHECK-LABEL: define internal i8* @f.resume.0(i8* {{.*}} %0, i1 zeroext %1, i8** swifterror %2) |
| ; CHECK-NEXT: : |
| ; CHECK-NEXT: br i1 %1, |
| ; CHECK: : |
| ; CHECK-NEXT: [[ERROR:%.*]] = load i8*, i8** %2, align 4 |
| ; CHECK-NEXT: [[T0:%.*]] = bitcast i8* %0 to i32* |
| ; CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[T0]], align 4 |
| ; CHECK-NEXT: %inc = add i32 [[T1]], 1 |
| ; CHECK-NEXT: store i32 %inc, i32* [[T0]], align 4 |
| ; CHECK-NEXT: call void @print(i32 %inc) |
| ; CHECK-NEXT: store i8* [[ERROR]], i8** %2 |
| ; CHECK-NEXT: call void @maybeThrow(i8** nonnull swifterror %2) |
| ; CHECK-NEXT: [[T2:%.*]] = load i8*, i8** %2 |
| ; CHECK-NEXT: call void @logError(i8* [[T2]]) |
| ; CHECK-NEXT: store i8* [[T2]], i8** %2 |
| ; CHECK-NEXT: ret i8* bitcast (i8* (i8*, i1, i8**)* @f.resume.0 to i8*) |
| ; CHECK: : |
| ; CHECK-NEXT: ret i8* null |
| ; CHECK-NEXT: } |
| |
| define i8* @g(i8* %buffer, i32 %n) { |
| entry: |
| %errorslot = alloca swifterror i8*, align 4 |
| store i8* null, i8** %errorslot |
| %id = call token @llvm.coro.id.retcon(i32 8, i32 4, i8* %buffer, i8* bitcast (i8* (i8*, i1)* @g_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, %resume ] |
| call void @print(i32 %n.val) |
| call void @maybeThrow(i8** swifterror %errorslot) |
| %errorload1 = load i8*, i8** %errorslot |
| call void @logError(i8* %errorload1) |
| %unwind0 = call i1 (...) @llvm.coro.suspend.retcon.i1() |
| br i1 %unwind0, label %cleanup, label %resume |
| |
| resume: |
| %inc = add i32 %n.val, 1 |
| br label %loop |
| |
| cleanup: |
| call i1 @llvm.coro.end(i8* %hdl, i1 0) |
| unreachable |
| } |
| |
| ; CHECK-LABEL: define i8* @g(i8* %buffer, i32 %n) |
| ; CHECK-NEXT: entry: |
| ; CHECK-NEXT: [[ERRORSLOT:%.*]] = alloca swifterror i8*, align 4 |
| ; CHECK-NEXT: [[T0:%.*]] = bitcast i8* %buffer to i32* |
| ; CHECK-NEXT: store i32 %n, i32* [[T0]], align 4 |
| ; CHECK-NEXT: call void @print(i32 %n) |
| ; CHECK-NEXT: store i8* null, i8** [[ERRORSLOT]], align 4 |
| ; CHECK-NEXT: call void @maybeThrow(i8** nonnull swifterror [[ERRORSLOT]]) |
| ; CHECK-NEXT: [[T1:%.*]] = load i8*, i8** [[ERRORSLOT]], align 4 |
| ; CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds i8, i8* %buffer, i32 4 |
| ; CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to i8** |
| ; CHECK-NEXT: store i8* [[T1]], i8** [[T3]], align 4 |
| ; CHECK-NEXT: call void @logError(i8* [[T1]]) |
| ; CHECK-NEXT: ret i8* bitcast (i8* (i8*, i1)* @g.resume.0 to i8*) |
| ; CHECK-NEXT: } |
| |
| ; CHECK-LABEL: define internal i8* @g.resume.0(i8* {{.*}} %0, i1 zeroext %1) |
| ; CHECK-NEXT: : |
| ; CHECK-NEXT: [[ERRORSLOT:%.*]] = alloca swifterror i8*, align 4 |
| ; CHECK-NEXT: br i1 %1, |
| ; CHECK: : |
| ; CHECK-NEXT: [[T0:%.*]] = bitcast i8* %0 to i32* |
| ; CHECK-NEXT: [[T1:%.*]] = load i32, i32* [[T0]], align 4 |
| ; CHECK-NEXT: %inc = add i32 [[T1]], 1 |
| ; CHECK-NEXT: [[T2:%.*]] = getelementptr inbounds i8, i8* %0, i32 4 |
| ; CHECK-NEXT: [[T3:%.*]] = bitcast i8* [[T2]] to i8** |
| ; CHECK-NEXT: [[T4:%.*]] = load i8*, i8** [[T3]] |
| ; CHECK-NEXT: store i32 %inc, i32* [[T0]], align 4 |
| ; CHECK-NEXT: call void @print(i32 %inc) |
| ; CHECK-NEXT: store i8* [[T4]], i8** [[ERRORSLOT]] |
| ; CHECK-NEXT: call void @maybeThrow(i8** nonnull swifterror [[ERRORSLOT]]) |
| ; CHECK-NEXT: [[T5:%.*]] = load i8*, i8** [[ERRORSLOT]] |
| ; CHECK-NEXT: store i8* [[T5]], i8** [[T3]], align 4 |
| ; CHECK-NEXT: call void @logError(i8* [[T5]]) |
| ; CHECK-NEXT: ret i8* bitcast (i8* (i8*, i1)* @g.resume.0 to i8*) |
| ; CHECK: : |
| ; CHECK-NEXT: ret i8* null |
| ; CHECK-NEXT: } |
| |
| declare token @llvm.coro.id.retcon(i32, i32, i8*, i8*, i8*, i8*) |
| declare i8* @llvm.coro.begin(token, i8*) |
| declare { i1, i8** } @llvm.coro.suspend.retcon.i1p0p0i8(...) |
| declare i1 @llvm.coro.suspend.retcon.i1(...) |
| declare i1 @llvm.coro.end(i8*, i1) |
| declare i8* @llvm.coro.prepare.retcon(i8*) |
| |
| declare i8* @f_prototype(i8*, i1 zeroext, i8** swifterror) |
| declare i8* @g_prototype(i8*, i1 zeroext) |
| |
| declare noalias i8* @allocate(i32 %size) |
| declare void @deallocate(i8* %ptr) |
| |
| declare void @print(i32) |
| declare void @maybeThrow(i8** swifterror) |
| declare void @logError(i8*) |