62 lines · plain
1; Check that we will insert the correct padding if natural alignment of the2; spilled data does not match the alignment specified in alloca instruction.3; RUN: opt < %s -passes='cgscc(coro-split),simplifycfg,early-cse' -S | FileCheck %s4 5%PackedStruct = type <{ i64 }>6 7declare void @consume(ptr)8 9define ptr @f() presplitcoroutine {10entry:11 %data = alloca %PackedStruct, align 3212 %id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)13 %size = call i32 @llvm.coro.size.i32()14 %alloc = call ptr @malloc(i32 %size)15 %hdl = call ptr @llvm.coro.begin(token %id, ptr %alloc)16 call void @consume(ptr %data)17 %0 = call i8 @llvm.coro.suspend(token none, i1 false)18 switch i8 %0, label %suspend [i8 0, label %resume19 i8 1, label %cleanup]20resume:21 call void @consume(ptr %data)22 br label %cleanup23 24cleanup:25 %mem = call ptr @llvm.coro.free(token %id, ptr %hdl)26 call void @free(ptr %mem)27 br label %suspend28suspend:29 call void @llvm.coro.end(ptr %hdl, i1 0, token none)30 ret ptr %hdl31}32 33; See if the padding was inserted before PackedStruct34; CHECK-LABEL: %f.Frame = type { ptr, ptr, i1, [15 x i8], %PackedStruct }35 36; See if we used correct index to access packed struct (padding is field 3)37; CHECK-LABEL: @f(38; CHECK: %[[DATA:.+]] = getelementptr inbounds %f.Frame, ptr %hdl, i32 0, i32 439; CHECK-NEXT: call void @consume(ptr %[[DATA]])40; CHECK: ret ptr41 42; See if we used correct index to access packed struct (padding is field 3)43; CHECK-LABEL: @f.resume(44; CHECK: %[[DATA:.+]] = getelementptr inbounds %f.Frame, ptr %hdl, i32 0, i32 445; CHECK-NEXT: call void @consume(ptr %[[DATA]])46; CHECK: ret void47 48declare ptr @llvm.coro.free(token, ptr)49declare i32 @llvm.coro.size.i32()50declare i8 @llvm.coro.suspend(token, i1)51declare void @llvm.coro.resume(ptr)52declare void @llvm.coro.destroy(ptr)53 54declare token @llvm.coro.id(i32, ptr, ptr, ptr)55declare i1 @llvm.coro.alloc(token)56declare ptr @llvm.coro.begin(token, ptr)57declare void @llvm.coro.end(ptr, i1, token)58 59declare noalias ptr @malloc(i32)60declare double @print(double)61declare void @free(ptr)62