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llvm-mirror/test/Transforms/ObjCARC/nested.ll
Pete Cooper aca4c5cdc6 Change memcpy/memset/memmove to have dest and source alignments. 
Note, this was reviewed (and more details are in) http://lists.llvm.org/pipermail/llvm-commits/Week-of-Mon-20151109/312083.html

These intrinsics currently have an explicit alignment argument which is
required to be a constant integer.  It represents the alignment of the
source and dest, and so must be the minimum of those.

This change allows source and dest to each have their own alignments
by using the alignment attribute on their arguments.  The alignment
argument itself is removed.

There are a few places in the code for which the code needs to be
checked by an expert as to whether using only src/dest alignment is
safe.  For those places, they currently take the minimum of src/dest
alignments which matches the current behaviour.

For example, code which used to read:
  call void @llvm.memcpy.p0i8.p0i8.i32(i8* %dest, i8* %src, i32 500, i32 8, i1 false)
will now read:
  call void @llvm.memcpy.p0i8.p0i8.i32(i8* align 8 %dest, i8* align 8 %src, i32 500, i1 false)

For out of tree owners, I was able to strip alignment from calls using sed by replacing:
  (call.*llvm\.memset.*)i32\ [0-9]*\,\ i1 false\)
with:
  $1i1 false)

and similarly for memmove and memcpy.

I then added back in alignment to test cases which needed it.

A similar commit will be made to clang which actually has many differences in alignment as now
IRBuilder can generate different source/dest alignments on calls.

In IRBuilder itself, a new argument was added.  Instead of calling:
  CreateMemCpy(Dst, Src, getInt64(Size), DstAlign, /* isVolatile */ false)
you now call
  CreateMemCpy(Dst, Src, getInt64(Size), DstAlign, SrcAlign, /* isVolatile */ false)

There is a temporary class (IntegerAlignment) which takes the source alignment and rejects
implicit conversion from bool.  This is to prevent isVolatile here from passing its default
parameter to the source alignment.

Note, changes in future can now be made to codegen.  I didn't change anything here, but this
change should enable better memcpy code sequences.

Reviewed by Hal Finkel.

llvm-svn: 253511
2015-11-18 22:17:24 +00:00

826 lines
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; RUN: opt -objc-arc -S < %s | FileCheck %s
%struct.__objcFastEnumerationState = type { i64, i8**, i64*, [5 x i64] }
@"\01L_OBJC_METH_VAR_NAME_" = internal global [43 x i8] c"countByEnumeratingWithState:objects:count:\00", section "__TEXT,__objc_methname,cstring_literals", align 1
@"\01L_OBJC_SELECTOR_REFERENCES_" = internal global i8* getelementptr inbounds ([43 x i8], [43 x i8]* @"\01L_OBJC_METH_VAR_NAME_", i64 0, i64 0), section "__DATA, __objc_selrefs, literal_pointers, no_dead_strip"
@g = common global i8* null, align 8
@"\01L_OBJC_IMAGE_INFO" = internal constant [2 x i32] [i32 0, i32 16], section "__DATA, __objc_imageinfo, regular, no_dead_strip"
declare void @callee()
declare i8* @returner()
declare i8* @objc_retainAutoreleasedReturnValue(i8*)
declare i8* @objc_retain(i8*)
declare void @objc_enumerationMutation(i8*)
declare void @llvm.memset.p0i8.i64(i8* nocapture, i8, i64, i1) nounwind
declare i8* @objc_msgSend(i8*, i8*, ...) nonlazybind
declare void @use(i8*)
declare void @objc_release(i8*)
declare i8* @def()
declare void @__crasher_block_invoke(i8* nocapture)
declare i8* @objc_retainBlock(i8*)
declare void @__crasher_block_invoke1(i8* nocapture)
!0 = !{}
; Delete a nested retain+release pair.
; CHECK-LABEL: define void @test0(
; CHECK: call i8* @objc_retain
; CHECK-NOT: @objc_retain
; CHECK: }
define void @test0(i8* %a) nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%0 = call i8* @objc_retain(i8* %a) nounwind
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%1 = call i8* @objc_retain(i8* %0) nounwind
%tmp2 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp2, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
%stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 1
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call, %forcoll.loopinit ], [ %call6, %forcoll.refetch ]
%tmp7 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp7, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ]
%mutationsptr3 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr3, align 8
%2 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %2, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %1)
br label %forcoll.notmutated
forcoll.notmutated:
%stateitems = load i8**, i8*** %stateitems.ptr, align 8
%currentitem.ptr = getelementptr i8*, i8** %stateitems, i64 %forcoll.index
%3 = load i8*, i8** %currentitem.ptr, align 8
call void @use(i8* %3)
%4 = add i64 %forcoll.index, 1
%exitcond = icmp eq i64 %4, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody
forcoll.refetch:
%tmp5 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call6 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp5, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%5 = icmp eq i64 %call6, 0
br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %1) nounwind
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; Delete a nested retain+release pair.
; CHECK-LABEL: define void @test2(
; CHECK: call i8* @objc_retain
; CHECK-NOT: @objc_retain
; CHECK: }
define void @test2() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%call = call i8* @returner()
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%1 = call i8* @objc_retain(i8* %0) nounwind
%tmp2 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call3 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp2, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call3, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
%stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 1
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ]
%tmp8 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ]
%mutationsptr4 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr4, align 8
%2 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %2, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %1)
br label %forcoll.notmutated
forcoll.notmutated:
%stateitems = load i8**, i8*** %stateitems.ptr, align 8
%currentitem.ptr = getelementptr i8*, i8** %stateitems, i64 %forcoll.index
%3 = load i8*, i8** %currentitem.ptr, align 8
call void @use(i8* %3)
%4 = add i64 %forcoll.index, 1
%exitcond = icmp eq i64 %4, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody
forcoll.refetch:
%tmp6 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call7 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp6, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%5 = icmp eq i64 %call7, 0
br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %1) nounwind
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; Delete a nested retain+release pair.
; CHECK-LABEL: define void @test4(
; CHECK: call i8* @objc_retain
; CHECK-NOT: @objc_retain
; CHECK: }
define void @test4() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%tmp = load i8*, i8** @g, align 8
%0 = call i8* @objc_retain(i8* %tmp) nounwind
%tmp2 = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp2, i8 0, i64 64, i1 false)
%1 = call i8* @objc_retain(i8* %0) nounwind
%tmp4 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp4, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
%stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 1
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call, %forcoll.loopinit ], [ %call8, %forcoll.refetch ]
%tmp9 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ]
%mutationsptr5 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr5, align 8
%2 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %2, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %1)
br label %forcoll.notmutated
forcoll.notmutated:
%stateitems = load i8**, i8*** %stateitems.ptr, align 8
%currentitem.ptr = getelementptr i8*, i8** %stateitems, i64 %forcoll.index
%3 = load i8*, i8** %currentitem.ptr, align 8
call void @use(i8* %3)
%4 = add i64 %forcoll.index, 1
%exitcond = icmp eq i64 %4, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody
forcoll.refetch:
%tmp7 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call8 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp7, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%5 = icmp eq i64 %call8, 0
br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %1) nounwind
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; Delete a nested retain+release pair.
; CHECK-LABEL: define void @test5(
; CHECK: call i8* @objc_retain
; CHECK-NOT: @objc_retain
; CHECK: }
define void @test5() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%call = call i8* @returner()
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%1 = call i8* @objc_retain(i8* %0) nounwind
%tmp2 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call3 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp2, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call3, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
%stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 1
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ]
%tmp8 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ]
%mutationsptr4 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr4, align 8
%2 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %2, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %1)
br label %forcoll.notmutated
forcoll.notmutated:
%stateitems = load i8**, i8*** %stateitems.ptr, align 8
%currentitem.ptr = getelementptr i8*, i8** %stateitems, i64 %forcoll.index
%3 = load i8*, i8** %currentitem.ptr, align 8
call void @use(i8* %3)
%4 = add i64 %forcoll.index, 1
%exitcond = icmp eq i64 %4, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody
forcoll.refetch:
%tmp6 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call7 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp6, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%5 = icmp eq i64 %call7, 0
br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %1) nounwind
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; We handle this now due to the fact that a release just needs a post dominating
; use.
;
; CHECK-LABEL: define void @test6(
; CHECK: call i8* @objc_retain
; CHECK-NOT: @objc_retain
; CHECK: }
define void @test6() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%call = call i8* @returner()
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%1 = call i8* @objc_retain(i8* %0) nounwind
%tmp2 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call3 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp2, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call3, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
%stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 1
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ]
%tmp8 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ]
%mutationsptr4 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr4, align 8
%2 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %2, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %1)
br label %forcoll.notmutated
forcoll.notmutated:
%stateitems = load i8**, i8*** %stateitems.ptr, align 8
%currentitem.ptr = getelementptr i8*, i8** %stateitems, i64 %forcoll.index
%3 = load i8*, i8** %currentitem.ptr, align 8
call void @use(i8* %3)
%4 = add i64 %forcoll.index, 1
%exitcond = icmp eq i64 %4, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody
forcoll.refetch:
%tmp6 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call7 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp6, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%5 = icmp eq i64 %call7, 0
br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %1) nounwind
call void @callee()
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; TODO: Delete a nested retain+release pair.
; The optimizer currently can't do this, because isn't isn't sophisticated enough in
; reasnoning about nesting.
; CHECK-LABEL: define void @test7(
; CHECK: call i8* @objc_retain
; CHECK: @objc_retain
; CHECK: }
define void @test7() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%call = call i8* @returner()
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
call void @callee()
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%1 = call i8* @objc_retain(i8* %0) nounwind
%tmp2 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call3 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp2, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call3, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
%stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 1
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ]
%tmp8 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.notmutated ]
%mutationsptr4 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr4, align 8
%2 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %2, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %1)
br label %forcoll.notmutated
forcoll.notmutated:
%stateitems = load i8**, i8*** %stateitems.ptr, align 8
%currentitem.ptr = getelementptr i8*, i8** %stateitems, i64 %forcoll.index
%3 = load i8*, i8** %currentitem.ptr, align 8
call void @use(i8* %3)
%4 = add i64 %forcoll.index, 1
%exitcond = icmp eq i64 %4, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody
forcoll.refetch:
%tmp6 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call7 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp6, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%5 = icmp eq i64 %call7, 0
br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %1) nounwind
call void @callee()
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; Delete a nested retain+release pair.
; CHECK-LABEL: define void @test8(
; CHECK: call i8* @objc_retain
; CHECK-NOT: @objc_retain
; CHECK: }
define void @test8() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%call = call i8* @returner()
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%1 = call i8* @objc_retain(i8* %0) nounwind
%tmp2 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call3 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp2, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call3, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
%stateitems.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 1
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call3, %forcoll.loopinit ], [ %call7, %forcoll.refetch ]
%tmp8 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp8, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ 0, %forcoll.loopbody.outer ], [ %4, %forcoll.next ]
%mutationsptr4 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr4, align 8
%2 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %2, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %1)
br label %forcoll.notmutated
forcoll.notmutated:
%stateitems = load i8**, i8*** %stateitems.ptr, align 8
%currentitem.ptr = getelementptr i8*, i8** %stateitems, i64 %forcoll.index
%3 = load i8*, i8** %currentitem.ptr, align 8
%tobool = icmp eq i8* %3, null
br i1 %tobool, label %forcoll.next, label %if.then
if.then:
call void @callee()
br label %forcoll.next
forcoll.next:
%4 = add i64 %forcoll.index, 1
%exitcond = icmp eq i64 %4, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody
forcoll.refetch:
%tmp6 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call7 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %1, i8* %tmp6, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%5 = icmp eq i64 %call7, 0
br i1 %5, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %1) nounwind
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; TODO: Delete a nested retain+release pair.
; The optimizer currently can't do this, because of a split loop backedge.
; See test9b for the same testcase without a split backedge.
; CHECK-LABEL: define void @test9(
; CHECK: call i8* @objc_retain
; CHECK: call i8* @objc_retain
; CHECK: call i8* @objc_retain
; CHECK: }
define void @test9() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%call = call i8* @returner()
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
%call1 = call i8* @returner()
%1 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call1) nounwind
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%2 = call i8* @objc_retain(i8* %0) nounwind
%tmp3 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call4 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %2, i8* %tmp3, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call4, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call4, %forcoll.loopinit ], [ %call7, %forcoll.refetch ]
%tmp9 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ %phitmp, %forcoll.notmutated.forcoll.loopbody_crit_edge ], [ 1, %forcoll.loopbody.outer ]
%mutationsptr5 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr5, align 8
%3 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %3, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %2)
br label %forcoll.notmutated
forcoll.notmutated:
%exitcond = icmp eq i64 %forcoll.index, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.notmutated.forcoll.loopbody_crit_edge
forcoll.notmutated.forcoll.loopbody_crit_edge:
%phitmp = add i64 %forcoll.index, 1
br label %forcoll.loopbody
forcoll.refetch:
%tmp6 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call7 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %2, i8* %tmp6, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%4 = icmp eq i64 %call7, 0
br i1 %4, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %2) nounwind
call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; Like test9, but without a split backedge. TODO: optimize this.
; CHECK-LABEL: define void @test9b(
; CHECK: call i8* @objc_retain
; CHECK: call i8* @objc_retain
; CHECK: @objc_retain
; CHECK: }
define void @test9b() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%call = call i8* @returner()
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
%call1 = call i8* @returner()
%1 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call1) nounwind
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%2 = call i8* @objc_retain(i8* %0) nounwind
%tmp3 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call4 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %2, i8* %tmp3, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call4, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call4, %forcoll.loopinit ], [ %call7, %forcoll.refetch ]
%tmp9 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ %phitmp, %forcoll.notmutated ], [ 0, %forcoll.loopbody.outer ]
%mutationsptr5 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr5, align 8
%3 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %3, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %2)
br label %forcoll.notmutated
forcoll.notmutated:
%phitmp = add i64 %forcoll.index, 1
%exitcond = icmp eq i64 %phitmp, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody
forcoll.refetch:
%tmp6 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call7 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %2, i8* %tmp6, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%4 = icmp eq i64 %call7, 0
br i1 %4, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %2) nounwind
call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; TODO: Delete a nested retain+release pair.
; The optimizer currently can't do this, because of a split loop backedge.
; See test10b for the same testcase without a split backedge.
; CHECK-LABEL: define void @test10(
; CHECK: call i8* @objc_retain
; CHECK: call i8* @objc_retain
; CHECK: call i8* @objc_retain
; CHECK: }
define void @test10() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%call = call i8* @returner()
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
%call1 = call i8* @returner()
%1 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call1) nounwind
call void @callee()
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%2 = call i8* @objc_retain(i8* %0) nounwind
%tmp3 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call4 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %2, i8* %tmp3, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call4, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call4, %forcoll.loopinit ], [ %call7, %forcoll.refetch ]
%tmp9 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ %phitmp, %forcoll.notmutated.forcoll.loopbody_crit_edge ], [ 1, %forcoll.loopbody.outer ]
%mutationsptr5 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr5, align 8
%3 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %3, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %2)
br label %forcoll.notmutated
forcoll.notmutated:
%exitcond = icmp eq i64 %forcoll.index, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.notmutated.forcoll.loopbody_crit_edge
forcoll.notmutated.forcoll.loopbody_crit_edge:
%phitmp = add i64 %forcoll.index, 1
br label %forcoll.loopbody
forcoll.refetch:
%tmp6 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call7 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %2, i8* %tmp6, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%4 = icmp eq i64 %call7, 0
br i1 %4, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %2) nounwind
call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; Like test10, but without a split backedge. TODO: optimize this.
; CHECK-LABEL: define void @test10b(
; CHECK: call i8* @objc_retain
; CHECK: call i8* @objc_retain
; CHECK: @objc_retain
; CHECK: }
define void @test10b() nounwind {
entry:
%state.ptr = alloca %struct.__objcFastEnumerationState, align 8
%items.ptr = alloca [16 x i8*], align 8
%call = call i8* @returner()
%0 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call) nounwind
%call1 = call i8* @returner()
%1 = call i8* @objc_retainAutoreleasedReturnValue(i8* %call1) nounwind
call void @callee()
%tmp = bitcast %struct.__objcFastEnumerationState* %state.ptr to i8*
call void @llvm.memset.p0i8.i64(i8* %tmp, i8 0, i64 64, i1 false)
%2 = call i8* @objc_retain(i8* %0) nounwind
%tmp3 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call4 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %2, i8* %tmp3, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%iszero = icmp eq i64 %call4, 0
br i1 %iszero, label %forcoll.empty, label %forcoll.loopinit
forcoll.loopinit:
%mutationsptr.ptr = getelementptr inbounds %struct.__objcFastEnumerationState, %struct.__objcFastEnumerationState* %state.ptr, i64 0, i32 2
%mutationsptr = load i64*, i64** %mutationsptr.ptr, align 8
%forcoll.initial-mutations = load i64, i64* %mutationsptr, align 8
br label %forcoll.loopbody.outer
forcoll.loopbody.outer:
%forcoll.count.ph = phi i64 [ %call4, %forcoll.loopinit ], [ %call7, %forcoll.refetch ]
%tmp9 = icmp ugt i64 %forcoll.count.ph, 1
%umax = select i1 %tmp9, i64 %forcoll.count.ph, i64 1
br label %forcoll.loopbody
forcoll.loopbody:
%forcoll.index = phi i64 [ %phitmp, %forcoll.notmutated ], [ 0, %forcoll.loopbody.outer ]
%mutationsptr5 = load i64*, i64** %mutationsptr.ptr, align 8
%statemutations = load i64, i64* %mutationsptr5, align 8
%3 = icmp eq i64 %statemutations, %forcoll.initial-mutations
br i1 %3, label %forcoll.notmutated, label %forcoll.mutated
forcoll.mutated:
call void @objc_enumerationMutation(i8* %2)
br label %forcoll.notmutated
forcoll.notmutated:
%phitmp = add i64 %forcoll.index, 1
%exitcond = icmp eq i64 %phitmp, %umax
br i1 %exitcond, label %forcoll.refetch, label %forcoll.loopbody
forcoll.refetch:
%tmp6 = load i8*, i8** @"\01L_OBJC_SELECTOR_REFERENCES_", align 8
%call7 = call i64 bitcast (i8* (i8*, i8*, ...)* @objc_msgSend to i64 (i8*, i8*, %struct.__objcFastEnumerationState*, [16 x i8*]*, i64)*)(i8* %2, i8* %tmp6, %struct.__objcFastEnumerationState* %state.ptr, [16 x i8*]* %items.ptr, i64 16)
%4 = icmp eq i64 %call7, 0
br i1 %4, label %forcoll.empty, label %forcoll.loopbody.outer
forcoll.empty:
call void @objc_release(i8* %2) nounwind
call void @objc_release(i8* %1) nounwind, !clang.imprecise_release !0
call void @objc_release(i8* %0) nounwind, !clang.imprecise_release !0
ret void
}
; Pointers to strong pointers can obscure provenance relationships. Be conservative
; in the face of escaping pointers. rdar://12150909.
%struct.__block_d = type { i64, i64 }
@_NSConcreteStackBlock = external global i8*
@__block_d_tmp = external hidden constant { i64, i64, i8*, i8*, i8*, i8* }
@__block_d_tmp5 = external hidden constant { i64, i64, i8*, i8*, i8*, i8* }
; CHECK-LABEL: define void @test11(
; CHECK: tail call i8* @objc_retain(i8* %call) [[NUW:#[0-9]+]]
; CHECK: tail call i8* @objc_retain(i8* %call) [[NUW]]
; CHECK: call void @objc_release(i8* %call) [[NUW]], !clang.imprecise_release !0
; CHECK: }
define void @test11() {
entry:
%block = alloca <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, align 8
%block9 = alloca <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, align 8
%call = call i8* @def(), !clang.arc.no_objc_arc_exceptions !0
%foo = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block, i64 0, i32 5
%block.isa = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block, i64 0, i32 0
store i8* bitcast (i8** @_NSConcreteStackBlock to i8*), i8** %block.isa, align 8
%block.flags = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block, i64 0, i32 1
store i32 1107296256, i32* %block.flags, align 8
%block.reserved = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block, i64 0, i32 2
store i32 0, i32* %block.reserved, align 4
%block.invoke = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block, i64 0, i32 3
store i8* bitcast (void (i8*)* @__crasher_block_invoke to i8*), i8** %block.invoke, align 8
%block.d = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block, i64 0, i32 4
store %struct.__block_d* bitcast ({ i64, i64, i8*, i8*, i8*, i8* }* @__block_d_tmp to %struct.__block_d*), %struct.__block_d** %block.d, align 8
%foo2 = tail call i8* @objc_retain(i8* %call) nounwind
store i8* %foo2, i8** %foo, align 8
%foo4 = bitcast <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block to i8*
%foo5 = call i8* @objc_retainBlock(i8* %foo4) nounwind
call void @use(i8* %foo5), !clang.arc.no_objc_arc_exceptions !0
call void @objc_release(i8* %foo5) nounwind
%strongdestroy = load i8*, i8** %foo, align 8
call void @objc_release(i8* %strongdestroy) nounwind, !clang.imprecise_release !0
%foo10 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block9, i64 0, i32 5
%block.isa11 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block9, i64 0, i32 0
store i8* bitcast (i8** @_NSConcreteStackBlock to i8*), i8** %block.isa11, align 8
%block.flags12 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block9, i64 0, i32 1
store i32 1107296256, i32* %block.flags12, align 8
%block.reserved13 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block9, i64 0, i32 2
store i32 0, i32* %block.reserved13, align 4
%block.invoke14 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block9, i64 0, i32 3
store i8* bitcast (void (i8*)* @__crasher_block_invoke1 to i8*), i8** %block.invoke14, align 8
%block.d15 = getelementptr inbounds <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>, <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block9, i64 0, i32 4
store %struct.__block_d* bitcast ({ i64, i64, i8*, i8*, i8*, i8* }* @__block_d_tmp5 to %struct.__block_d*), %struct.__block_d** %block.d15, align 8
%foo18 = call i8* @objc_retain(i8* %call) nounwind
store i8* %call, i8** %foo10, align 8
%foo20 = bitcast <{ i8*, i32, i32, i8*, %struct.__block_d*, i8* }>* %block9 to i8*
%foo21 = call i8* @objc_retainBlock(i8* %foo20) nounwind
call void @use(i8* %foo21), !clang.arc.no_objc_arc_exceptions !0
call void @objc_release(i8* %foo21) nounwind
%strongdestroy25 = load i8*, i8** %foo10, align 8
call void @objc_release(i8* %strongdestroy25) nounwind, !clang.imprecise_release !0
call void @objc_release(i8* %call) nounwind, !clang.imprecise_release !0
ret void
}
; CHECK: attributes #0 = { argmemonly nounwind }
; CHECK: attributes #1 = { nonlazybind }
; CHECK: attributes [[NUW]] = { nounwind }
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