target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" target triple = "wasm32-unknown-unknown-wasm" %runtime.stackChainObject = type { %runtime.stackChainObject*, i32 } @runtime.stackChainStart = internal global %runtime.stackChainObject* null @someGlobal = global i8 3 @ptrGlobal = global i8** null declare void @runtime.trackPointer(i8* nocapture readonly) declare noalias nonnull i8* @runtime.alloc(i32, i8*) define i8* @getPointer() { ret i8* @someGlobal } define i8* @needsStackSlots() { %gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8* }, align 8 store { %runtime.stackChainObject*, i32, i8* } { %runtime.stackChainObject* null, i32 1, i8* null }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, align 4 %1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %2 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 0 store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 %3 = bitcast { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject to %runtime.stackChainObject* store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %ptr = call i8* @runtime.alloc(i32 4, i8* null) %4 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 2 store i8* %ptr, i8** %4, align 4 call void @someArbitraryFunction() %val = load i8, i8* @someGlobal, align 1 store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4 ret i8* %ptr } define i8* @needsStackSlots2() { %gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, align 8 store { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* } { %runtime.stackChainObject* null, i32 5, i8* null, i8* null, i8* null, i8* null, i8* null }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, align 4 %1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %2 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 0 store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 %3 = bitcast { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject to %runtime.stackChainObject* store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %ptr1 = call i8* @getPointer() %4 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 4 store i8* %ptr1, i8** %4, align 4 %5 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 3 store i8* %ptr1, i8** %5, align 4 %6 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 2 store i8* %ptr1, i8** %6, align 4 %ptr2 = getelementptr i8, i8* @someGlobal, i32 0 %7 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 5 store i8* %ptr2, i8** %7, align 4 %unused = call i8* @runtime.alloc(i32 4, i8* null) %8 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 6 store i8* %unused, i8** %8, align 4 store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4 ret i8* %ptr1 } define i8* @noAllocatingFunction() { %ptr = call i8* @getPointer() ret i8* %ptr } define i8* @fibNext(i8* %x, i8* %y) { %gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8* }, align 8 store { %runtime.stackChainObject*, i32, i8* } { %runtime.stackChainObject* null, i32 1, i8* null }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, align 4 %1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %2 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 0 store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 %3 = bitcast { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject to %runtime.stackChainObject* store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %x.val = load i8, i8* %x, align 1 %y.val = load i8, i8* %y, align 1 %out.val = add i8 %x.val, %y.val %out.alloc = call i8* @runtime.alloc(i32 1, i8* null) %4 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 2 store i8* %out.alloc, i8** %4, align 4 store i8 %out.val, i8* %out.alloc, align 1 store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4 ret i8* %out.alloc } define i8* @allocLoop() { entry: %gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, align 8 store { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* } { %runtime.stackChainObject* null, i32 5, i8* null, i8* null, i8* null, i8* null, i8* null }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, align 4 %0 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %1 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 0 store %runtime.stackChainObject* %0, %runtime.stackChainObject** %1, align 4 %2 = bitcast { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject to %runtime.stackChainObject* store %runtime.stackChainObject* %2, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %entry.x = call i8* @runtime.alloc(i32 1, i8* null) %3 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 2 store i8* %entry.x, i8** %3, align 4 %entry.y = call i8* @runtime.alloc(i32 1, i8* null) %4 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 3 store i8* %entry.y, i8** %4, align 4 store i8 1, i8* %entry.y, align 1 br label %loop loop: ; preds = %loop, %entry %prev.y = phi i8* [ %entry.y, %entry ], [ %prev.x, %loop ] %prev.x = phi i8* [ %entry.x, %entry ], [ %next.x, %loop ] %5 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 5 store i8* %prev.y, i8** %5, align 4 %6 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 4 store i8* %prev.x, i8** %6, align 4 %next.x = call i8* @fibNext(i8* %prev.x, i8* %prev.y) %7 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject, i32 0, i32 6 store i8* %next.x, i8** %7, align 4 %next.x.val = load i8, i8* %next.x, align 1 %loop.done = icmp ult i8 40, %next.x.val br i1 %loop.done, label %end, label %loop end: ; preds = %loop store %runtime.stackChainObject* %0, %runtime.stackChainObject** @runtime.stackChainStart, align 4 ret i8* %next.x } declare [32 x i8]* @arrayAlloc() define void @testGEPBitcast() { %gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8*, i8* }, align 8 store { %runtime.stackChainObject*, i32, i8*, i8* } { %runtime.stackChainObject* null, i32 2, i8* null, i8* null }, { %runtime.stackChainObject*, i32, i8*, i8* }* %gc.stackobject, align 4 %1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %2 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8* }* %gc.stackobject, i32 0, i32 0 store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 %3 = bitcast { %runtime.stackChainObject*, i32, i8*, i8* }* %gc.stackobject to %runtime.stackChainObject* store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %arr = call [32 x i8]* @arrayAlloc() %arr.bitcast = getelementptr [32 x i8], [32 x i8]* %arr, i32 0, i32 0 %4 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8* }* %gc.stackobject, i32 0, i32 2 store i8* %arr.bitcast, i8** %4, align 4 %other = call i8* @runtime.alloc(i32 1, i8* null) %5 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8* }* %gc.stackobject, i32 0, i32 3 store i8* %other, i8** %5, align 4 store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4 ret void } define void @someArbitraryFunction() { ret void } define void @earlyPopRegression() { %gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8* }, align 8 store { %runtime.stackChainObject*, i32, i8* } { %runtime.stackChainObject* null, i32 1, i8* null }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, align 4 %1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %2 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 0 store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 %3 = bitcast { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject to %runtime.stackChainObject* store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %x.alloc = call i8* @runtime.alloc(i32 4, i8* null) %4 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 2 store i8* %x.alloc, i8** %4, align 4 %x = bitcast i8* %x.alloc to i8** call void @allocAndSave(i8** %x) store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4 ret void } define void @allocAndSave(i8** %x) { %gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8* }, align 8 store { %runtime.stackChainObject*, i32, i8* } { %runtime.stackChainObject* null, i32 1, i8* null }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, align 4 %1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %2 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 0 store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 %3 = bitcast { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject to %runtime.stackChainObject* store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %y = call i8* @runtime.alloc(i32 4, i8* null) %4 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 2 store i8* %y, i8** %4, align 4 store i8* %y, i8** %x, align 4 store i8** %x, i8*** @ptrGlobal, align 4 store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4 ret void }