transform: update gc-stackslots test to opaque pointers

Этот коммит содержится в:
Ayke van Laethem 2023-03-16 19:51:24 +01:00 коммит произвёл Damian Gryski
родитель 0ddd65658e
коммит f8a6e662d8
2 изменённых файлов: 185 добавлений и 198 удалений

123
transform/testdata/gc-stackslots.ll предоставленный
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@ -1,101 +1,99 @@
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown-wasm" target triple = "wasm32-unknown-unknown-wasm"
%runtime.stackChainObject = type { %runtime.stackChainObject*, i32 } @runtime.stackChainStart = external global ptr
@runtime.stackChainStart = external global %runtime.stackChainObject*
@someGlobal = global i8 3 @someGlobal = global i8 3
@ptrGlobal = global i8** null @ptrGlobal = global ptr null
declare void @runtime.trackPointer(i8* nocapture readonly) declare void @runtime.trackPointer(ptr nocapture readonly)
declare noalias nonnull i8* @runtime.alloc(i32, i8*) declare noalias nonnull ptr @runtime.alloc(i32, ptr)
; Generic function that returns a pointer (that must be tracked). ; Generic function that returns a pointer (that must be tracked).
define i8* @getPointer() { define ptr @getPointer() {
ret i8* @someGlobal ret ptr @someGlobal
} }
define i8* @needsStackSlots() { define ptr @needsStackSlots() {
; Tracked pointer. Although, in this case the value is immediately returned ; Tracked pointer. Although, in this case the value is immediately returned
; so tracking it is not really necessary. ; so tracking it is not really necessary.
%ptr = call i8* @runtime.alloc(i32 4, i8* null) %ptr = call ptr @runtime.alloc(i32 4, ptr null)
call void @runtime.trackPointer(i8* %ptr) call void @runtime.trackPointer(ptr %ptr)
call void @someArbitraryFunction() call void @someArbitraryFunction()
%val = load i8, i8* @someGlobal %val = load i8, ptr @someGlobal
ret i8* %ptr ret ptr %ptr
} }
; Check some edge cases of pointer tracking. ; Check some edge cases of pointer tracking.
define i8* @needsStackSlots2() { define ptr @needsStackSlots2() {
; Only one stack slot should be created for this (but at the moment, one is ; Only one stack slot should be created for this (but at the moment, one is
; created for each call to runtime.trackPointer). ; created for each call to runtime.trackPointer).
%ptr1 = call i8* @getPointer() %ptr1 = call ptr @getPointer()
call void @runtime.trackPointer(i8* %ptr1) call void @runtime.trackPointer(ptr %ptr1)
call void @runtime.trackPointer(i8* %ptr1) call void @runtime.trackPointer(ptr %ptr1)
call void @runtime.trackPointer(i8* %ptr1) call void @runtime.trackPointer(ptr %ptr1)
; Create a pointer that does not need to be tracked (but is tracked). ; Create a pointer that does not need to be tracked (but is tracked).
%ptr2 = getelementptr i8, i8* @someGlobal, i32 0 %ptr2 = getelementptr i8, ptr @someGlobal, i32 0
call void @runtime.trackPointer(i8* %ptr2) call void @runtime.trackPointer(ptr %ptr2)
; Here is finally the point where an allocation happens. ; Here is finally the point where an allocation happens.
%unused = call i8* @runtime.alloc(i32 4, i8* null) %unused = call ptr @runtime.alloc(i32 4, ptr null)
call void @runtime.trackPointer(i8* %unused) call void @runtime.trackPointer(ptr %unused)
ret i8* %ptr1 ret ptr %ptr1
} }
; Return a pointer from a caller. Because it doesn't allocate, no stack objects ; Return a pointer from a caller. Because it doesn't allocate, no stack objects
; need to be created. ; need to be created.
define i8* @noAllocatingFunction() { define ptr @noAllocatingFunction() {
%ptr = call i8* @getPointer() %ptr = call ptr @getPointer()
call void @runtime.trackPointer(i8* %ptr) call void @runtime.trackPointer(ptr %ptr)
ret i8* %ptr ret ptr %ptr
} }
define i8* @fibNext(i8* %x, i8* %y) { define ptr @fibNext(ptr %x, ptr %y) {
%x.val = load i8, i8* %x %x.val = load i8, ptr %x
%y.val = load i8, i8* %y %y.val = load i8, ptr %y
%out.val = add i8 %x.val, %y.val %out.val = add i8 %x.val, %y.val
%out.alloc = call i8* @runtime.alloc(i32 1, i8* null) %out.alloc = call ptr @runtime.alloc(i32 1, ptr null)
call void @runtime.trackPointer(i8* %out.alloc) call void @runtime.trackPointer(ptr %out.alloc)
store i8 %out.val, i8* %out.alloc store i8 %out.val, ptr %out.alloc
ret i8* %out.alloc ret ptr %out.alloc
} }
define i8* @allocLoop() { define ptr @allocLoop() {
entry: entry:
%entry.x = call i8* @runtime.alloc(i32 1, i8* null) %entry.x = call ptr @runtime.alloc(i32 1, ptr null)
call void @runtime.trackPointer(i8* %entry.x) call void @runtime.trackPointer(ptr %entry.x)
%entry.y = call i8* @runtime.alloc(i32 1, i8* null) %entry.y = call ptr @runtime.alloc(i32 1, ptr null)
call void @runtime.trackPointer(i8* %entry.y) call void @runtime.trackPointer(ptr %entry.y)
store i8 1, i8* %entry.y store i8 1, ptr %entry.y
br label %loop br label %loop
loop: loop:
%prev.y = phi i8* [ %entry.y, %entry ], [ %prev.x, %loop ] %prev.y = phi ptr [ %entry.y, %entry ], [ %prev.x, %loop ]
%prev.x = phi i8* [ %entry.x, %entry ], [ %next.x, %loop ] %prev.x = phi ptr [ %entry.x, %entry ], [ %next.x, %loop ]
call void @runtime.trackPointer(i8* %prev.x) call void @runtime.trackPointer(ptr %prev.x)
call void @runtime.trackPointer(i8* %prev.y) call void @runtime.trackPointer(ptr %prev.y)
%next.x = call i8* @fibNext(i8* %prev.x, i8* %prev.y) %next.x = call ptr @fibNext(ptr %prev.x, ptr %prev.y)
call void @runtime.trackPointer(i8* %next.x) call void @runtime.trackPointer(ptr %next.x)
%next.x.val = load i8, i8* %next.x %next.x.val = load i8, ptr %next.x
%loop.done = icmp ult i8 40, %next.x.val %loop.done = icmp ult i8 40, %next.x.val
br i1 %loop.done, label %end, label %loop br i1 %loop.done, label %end, label %loop
end: end:
ret i8* %next.x ret ptr %next.x
} }
declare [32 x i8]* @arrayAlloc() declare ptr @arrayAlloc()
define void @testGEPBitcast() { define void @testGEPBitcast() {
%arr = call [32 x i8]* @arrayAlloc() %arr = call ptr @arrayAlloc()
%arr.bitcast = getelementptr [32 x i8], [32 x i8]* %arr, i32 0, i32 0 %arr.bitcast = getelementptr [32 x i8], ptr %arr, i32 0, i32 0
call void @runtime.trackPointer(i8* %arr.bitcast) call void @runtime.trackPointer(ptr %arr.bitcast)
%other = call i8* @runtime.alloc(i32 1, i8* null) %other = call ptr @runtime.alloc(i32 1, ptr null)
call void @runtime.trackPointer(i8* %other) call void @runtime.trackPointer(ptr %other)
ret void ret void
} }
@ -104,18 +102,17 @@ define void @someArbitraryFunction() {
} }
define void @earlyPopRegression() { define void @earlyPopRegression() {
%x.alloc = call i8* @runtime.alloc(i32 4, i8* null) %x.alloc = call ptr @runtime.alloc(i32 4, ptr null)
call void @runtime.trackPointer(i8* %x.alloc) call void @runtime.trackPointer(ptr %x.alloc)
%x = bitcast i8* %x.alloc to i8**
; At this point the pass used to pop the stack chain, resulting in a potential use-after-free during allocAndSave. ; At this point the pass used to pop the stack chain, resulting in a potential use-after-free during allocAndSave.
musttail call void @allocAndSave(i8** %x) musttail call void @allocAndSave(ptr %x.alloc)
ret void ret void
} }
define void @allocAndSave(i8** %x) { define void @allocAndSave(ptr %x) {
%y = call i8* @runtime.alloc(i32 4, i8* null) %y = call ptr @runtime.alloc(i32 4, ptr null)
call void @runtime.trackPointer(i8* %y) call void @runtime.trackPointer(ptr %y)
store i8* %y, i8** %x store ptr %y, ptr %x
store i8** %x, i8*** @ptrGlobal store ptr %x, ptr @ptrGlobal
ret void ret void
} }

258
transform/testdata/gc-stackslots.out.ll предоставленный
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@ -1,141 +1,134 @@
target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128" target datalayout = "e-m:e-p:32:32-i64:64-n32:64-S128"
target triple = "wasm32-unknown-unknown-wasm" target triple = "wasm32-unknown-unknown-wasm"
%runtime.stackChainObject = type { %runtime.stackChainObject*, i32 } @runtime.stackChainStart = internal global ptr null
@runtime.stackChainStart = internal global %runtime.stackChainObject* null
@someGlobal = global i8 3 @someGlobal = global i8 3
@ptrGlobal = global i8** null @ptrGlobal = global ptr null
declare void @runtime.trackPointer(i8* nocapture readonly) declare void @runtime.trackPointer(ptr nocapture readonly)
declare noalias nonnull i8* @runtime.alloc(i32, i8*) declare noalias nonnull ptr @runtime.alloc(i32, ptr)
define i8* @getPointer() { define ptr @getPointer() {
ret i8* @someGlobal ret ptr @someGlobal
} }
define i8* @needsStackSlots() { define ptr @needsStackSlots() {
%gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8* }, align 8 %gc.stackobject = alloca { ptr, i32, ptr }, align 8
store { %runtime.stackChainObject*, i32, i8* } { %runtime.stackChainObject* null, i32 1, i8* null }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, align 4 store { ptr, i32, ptr } { ptr null, i32 1, ptr null }, ptr %gc.stackobject, align 4
%1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %1 = load ptr, ptr @runtime.stackChainStart, align 4
%2 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 0 %2 = getelementptr { ptr, i32, ptr }, ptr %gc.stackobject, i32 0, i32 0
store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 store ptr %1, ptr %2, align 4
%3 = bitcast { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject to %runtime.stackChainObject* store ptr %gc.stackobject, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %ptr = call ptr @runtime.alloc(i32 4, ptr null)
%ptr = call i8* @runtime.alloc(i32 4, i8* null) %3 = getelementptr { ptr, i32, ptr }, ptr %gc.stackobject, i32 0, i32 2
%4 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 2 store ptr %ptr, ptr %3, align 4
store i8* %ptr, i8** %4, align 4
call void @someArbitraryFunction() call void @someArbitraryFunction()
%val = load i8, i8* @someGlobal, align 1 %val = load i8, ptr @someGlobal, align 1
store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4 store ptr %1, ptr @runtime.stackChainStart, align 4
ret i8* %ptr ret ptr %ptr
} }
define i8* @needsStackSlots2() { define ptr @needsStackSlots2() {
%gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, align 8 %gc.stackobject = alloca { ptr, i32, ptr, ptr, ptr, ptr, ptr }, 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 store { ptr, i32, ptr, ptr, ptr, ptr, ptr } { ptr null, i32 5, ptr null, ptr null, ptr null, ptr null, ptr null }, ptr %gc.stackobject, align 4
%1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %1 = load ptr, ptr @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 %2 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 0
store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 store ptr %1, ptr %2, align 4
%3 = bitcast { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject to %runtime.stackChainObject* store ptr %gc.stackobject, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %ptr1 = call ptr @getPointer()
%ptr1 = call i8* @getPointer() %3 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 4
%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 ptr %ptr1, ptr %3, align 4
store i8* %ptr1, i8** %4, align 4 %4 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 3
%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 ptr %ptr1, ptr %4, align 4
store i8* %ptr1, i8** %5, align 4 %5 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 2
%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 ptr %ptr1, ptr %5, align 4
store i8* %ptr1, i8** %6, align 4 %ptr2 = getelementptr i8, ptr @someGlobal, i32 0
%ptr2 = getelementptr i8, i8* @someGlobal, i32 0 %6 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 5
%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 ptr %ptr2, ptr %6, align 4
store i8* %ptr2, i8** %7, align 4 %unused = call ptr @runtime.alloc(i32 4, ptr null)
%unused = call i8* @runtime.alloc(i32 4, i8* null) %7 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 6
%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 ptr %unused, ptr %7, align 4
store i8* %unused, i8** %8, align 4 store ptr %1, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4 ret ptr %ptr1
ret i8* %ptr1
} }
define i8* @noAllocatingFunction() { define ptr @noAllocatingFunction() {
%ptr = call i8* @getPointer() %ptr = call ptr @getPointer()
ret i8* %ptr ret ptr %ptr
} }
define i8* @fibNext(i8* %x, i8* %y) { define ptr @fibNext(ptr %x, ptr %y) {
%gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8* }, align 8 %gc.stackobject = alloca { ptr, i32, ptr }, align 8
store { %runtime.stackChainObject*, i32, i8* } { %runtime.stackChainObject* null, i32 1, i8* null }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, align 4 store { ptr, i32, ptr } { ptr null, i32 1, ptr null }, ptr %gc.stackobject, align 4
%1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %1 = load ptr, ptr @runtime.stackChainStart, align 4
%2 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 0 %2 = getelementptr { ptr, i32, ptr }, ptr %gc.stackobject, i32 0, i32 0
store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 store ptr %1, ptr %2, align 4
%3 = bitcast { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject to %runtime.stackChainObject* store ptr %gc.stackobject, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %x.val = load i8, ptr %x, align 1
%x.val = load i8, i8* %x, align 1 %y.val = load i8, ptr %y, align 1
%y.val = load i8, i8* %y, align 1
%out.val = add i8 %x.val, %y.val %out.val = add i8 %x.val, %y.val
%out.alloc = call i8* @runtime.alloc(i32 1, i8* null) %out.alloc = call ptr @runtime.alloc(i32 1, ptr null)
%4 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 2 %3 = getelementptr { ptr, i32, ptr }, ptr %gc.stackobject, i32 0, i32 2
store i8* %out.alloc, i8** %4, align 4 store ptr %out.alloc, ptr %3, align 4
store i8 %out.val, i8* %out.alloc, align 1 store i8 %out.val, ptr %out.alloc, align 1
store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4 store ptr %1, ptr @runtime.stackChainStart, align 4
ret i8* %out.alloc ret ptr %out.alloc
} }
define i8* @allocLoop() { define ptr @allocLoop() {
entry: entry:
%gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }, align 8 %gc.stackobject = alloca { ptr, i32, ptr, ptr, ptr, ptr, ptr }, 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 store { ptr, i32, ptr, ptr, ptr, ptr, ptr } { ptr null, i32 5, ptr null, ptr null, ptr null, ptr null, ptr null }, ptr %gc.stackobject, align 4
%0 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %0 = load ptr, ptr @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 %1 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 0
store %runtime.stackChainObject* %0, %runtime.stackChainObject** %1, align 4 store ptr %0, ptr %1, align 4
%2 = bitcast { %runtime.stackChainObject*, i32, i8*, i8*, i8*, i8*, i8* }* %gc.stackobject to %runtime.stackChainObject* store ptr %gc.stackobject, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %2, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %entry.x = call ptr @runtime.alloc(i32 1, ptr null)
%entry.x = call i8* @runtime.alloc(i32 1, i8* null) %2 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 2
%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 ptr %entry.x, ptr %2, align 4
store i8* %entry.x, i8** %3, align 4 %entry.y = call ptr @runtime.alloc(i32 1, ptr null)
%entry.y = call i8* @runtime.alloc(i32 1, i8* null) %3 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 3
%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 ptr %entry.y, ptr %3, align 4
store i8* %entry.y, i8** %4, align 4 store i8 1, ptr %entry.y, align 1
store i8 1, i8* %entry.y, align 1
br label %loop br label %loop
loop: ; preds = %loop, %entry loop: ; preds = %loop, %entry
%prev.y = phi i8* [ %entry.y, %entry ], [ %prev.x, %loop ] %prev.y = phi ptr [ %entry.y, %entry ], [ %prev.x, %loop ]
%prev.x = phi i8* [ %entry.x, %entry ], [ %next.x, %loop ] %prev.x = phi ptr [ %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 %4 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 5
store i8* %prev.y, i8** %5, align 4 store ptr %prev.y, ptr %4, 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 %5 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 4
store i8* %prev.x, i8** %6, align 4 store ptr %prev.x, ptr %5, align 4
%next.x = call i8* @fibNext(i8* %prev.x, i8* %prev.y) %next.x = call ptr @fibNext(ptr %prev.x, ptr %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 %6 = getelementptr { ptr, i32, ptr, ptr, ptr, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 6
store i8* %next.x, i8** %7, align 4 store ptr %next.x, ptr %6, align 4
%next.x.val = load i8, i8* %next.x, align 1 %next.x.val = load i8, ptr %next.x, align 1
%loop.done = icmp ult i8 40, %next.x.val %loop.done = icmp ult i8 40, %next.x.val
br i1 %loop.done, label %end, label %loop br i1 %loop.done, label %end, label %loop
end: ; preds = %loop end: ; preds = %loop
store %runtime.stackChainObject* %0, %runtime.stackChainObject** @runtime.stackChainStart, align 4 store ptr %0, ptr @runtime.stackChainStart, align 4
ret i8* %next.x ret ptr %next.x
} }
declare [32 x i8]* @arrayAlloc() declare ptr @arrayAlloc()
define void @testGEPBitcast() { define void @testGEPBitcast() {
%gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8*, i8* }, align 8 %gc.stackobject = alloca { ptr, i32, ptr, ptr }, 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 store { ptr, i32, ptr, ptr } { ptr null, i32 2, ptr null, ptr null }, ptr %gc.stackobject, align 4
%1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %1 = load ptr, ptr @runtime.stackChainStart, align 4
%2 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8* }* %gc.stackobject, i32 0, i32 0 %2 = getelementptr { ptr, i32, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 0
store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 store ptr %1, ptr %2, align 4
%3 = bitcast { %runtime.stackChainObject*, i32, i8*, i8* }* %gc.stackobject to %runtime.stackChainObject* store ptr %gc.stackobject, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %arr = call ptr @arrayAlloc()
%arr = call [32 x i8]* @arrayAlloc() %arr.bitcast = getelementptr [32 x i8], ptr %arr, i32 0, i32 0
%arr.bitcast = getelementptr [32 x i8], [32 x i8]* %arr, i32 0, i32 0 %3 = getelementptr { ptr, i32, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 2
%4 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8* }* %gc.stackobject, i32 0, i32 2 store ptr %arr.bitcast, ptr %3, align 4
store i8* %arr.bitcast, i8** %4, align 4 %other = call ptr @runtime.alloc(i32 1, ptr null)
%other = call i8* @runtime.alloc(i32 1, i8* null) %4 = getelementptr { ptr, i32, ptr, ptr }, ptr %gc.stackobject, i32 0, i32 3
%5 = getelementptr { %runtime.stackChainObject*, i32, i8*, i8* }, { %runtime.stackChainObject*, i32, i8*, i8* }* %gc.stackobject, i32 0, i32 3 store ptr %other, ptr %4, align 4
store i8* %other, i8** %5, align 4 store ptr %1, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4
ret void ret void
} }
@ -144,35 +137,32 @@ define void @someArbitraryFunction() {
} }
define void @earlyPopRegression() { define void @earlyPopRegression() {
%gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8* }, align 8 %gc.stackobject = alloca { ptr, i32, ptr }, align 8
store { %runtime.stackChainObject*, i32, i8* } { %runtime.stackChainObject* null, i32 1, i8* null }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, align 4 store { ptr, i32, ptr } { ptr null, i32 1, ptr null }, ptr %gc.stackobject, align 4
%1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %1 = load ptr, ptr @runtime.stackChainStart, align 4
%2 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 0 %2 = getelementptr { ptr, i32, ptr }, ptr %gc.stackobject, i32 0, i32 0
store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 store ptr %1, ptr %2, align 4
%3 = bitcast { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject to %runtime.stackChainObject* store ptr %gc.stackobject, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %x.alloc = call ptr @runtime.alloc(i32 4, ptr null)
%x.alloc = call i8* @runtime.alloc(i32 4, i8* null) %3 = getelementptr { ptr, i32, ptr }, ptr %gc.stackobject, i32 0, i32 2
%4 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 2 store ptr %x.alloc, ptr %3, align 4
store i8* %x.alloc, i8** %4, align 4 call void @allocAndSave(ptr %x.alloc)
%x = bitcast i8* %x.alloc to i8** store ptr %1, ptr @runtime.stackChainStart, align 4
call void @allocAndSave(i8** %x)
store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4
ret void ret void
} }
define void @allocAndSave(i8** %x) { define void @allocAndSave(ptr %x) {
%gc.stackobject = alloca { %runtime.stackChainObject*, i32, i8* }, align 8 %gc.stackobject = alloca { ptr, i32, ptr }, align 8
store { %runtime.stackChainObject*, i32, i8* } { %runtime.stackChainObject* null, i32 1, i8* null }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, align 4 store { ptr, i32, ptr } { ptr null, i32 1, ptr null }, ptr %gc.stackobject, align 4
%1 = load %runtime.stackChainObject*, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %1 = load ptr, ptr @runtime.stackChainStart, align 4
%2 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 0 %2 = getelementptr { ptr, i32, ptr }, ptr %gc.stackobject, i32 0, i32 0
store %runtime.stackChainObject* %1, %runtime.stackChainObject** %2, align 4 store ptr %1, ptr %2, align 4
%3 = bitcast { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject to %runtime.stackChainObject* store ptr %gc.stackobject, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %3, %runtime.stackChainObject** @runtime.stackChainStart, align 4 %y = call ptr @runtime.alloc(i32 4, ptr null)
%y = call i8* @runtime.alloc(i32 4, i8* null) %3 = getelementptr { ptr, i32, ptr }, ptr %gc.stackobject, i32 0, i32 2
%4 = getelementptr { %runtime.stackChainObject*, i32, i8* }, { %runtime.stackChainObject*, i32, i8* }* %gc.stackobject, i32 0, i32 2 store ptr %y, ptr %3, align 4
store i8* %y, i8** %4, align 4 store ptr %y, ptr %x, align 4
store i8* %y, i8** %x, align 4 store ptr %x, ptr @ptrGlobal, align 4
store i8** %x, i8*** @ptrGlobal, align 4 store ptr %1, ptr @runtime.stackChainStart, align 4
store %runtime.stackChainObject* %1, %runtime.stackChainObject** @runtime.stackChainStart, align 4
ret void ret void
} }