derek.holloway
7502bf64a4
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89 lines
4.0 KiB
LLVM
89 lines
4.0 KiB
LLVM
; RUN: llc -relocation-model=pic < %s | grep -E ': ?\s*$' | sort | uniq -d | count 0
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target datalayout = "e-p:32:32:32-i1:8:32-i8:8:32-i16:16:32-i32:32:32-i64:32:32-f32:32:32-f64:32:32-v64:64:64-v128:128:128-a0:0:32-n32"
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target triple = "thumbv7-apple-darwin10"
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; This function produces a duplicate LPC label unless special care is taken when duplicating a t2LDRpci_pic instruction.
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%struct.PlatformMutex = type { i32, [40 x i8] }
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%struct.SpinLock = type { %struct.PlatformMutex }
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%"struct.WTF::TCMalloc_ThreadCache" = type { i32, ptr, i8, [68 x %"struct.WTF::TCMalloc_ThreadCache_FreeList"], i32, i32, ptr, ptr }
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%"struct.WTF::TCMalloc_ThreadCache_FreeList" = type { ptr, i16, i16 }
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%struct.__darwin_pthread_handler_rec = type { ptr, ptr, ptr }
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%struct._opaque_pthread_t = type { i32, ptr, [596 x i8] }
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@_ZN3WTFL8heap_keyE = internal global i32 0 ; <ptr> [#uses=1]
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@_ZN3WTFL10tsd_initedE.b = internal global i1 false ; <ptr> [#uses=2]
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@_ZN3WTFL13pageheap_lockE = internal global %struct.SpinLock { %struct.PlatformMutex { i32 850045863, [40 x i8] zeroinitializer } } ; <ptr> [#uses=1]
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@_ZN3WTFL12thread_heapsE = internal global ptr null ; <ptr> [#uses=1]
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@llvm.used = appending global [1 x ptr] [ptr @_ZN3WTF20TCMalloc_ThreadCache22CreateCacheIfNecessaryEv], section "llvm.metadata" ; <ptr> [#uses=0]
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define ptr @_ZN3WTF20TCMalloc_ThreadCache22CreateCacheIfNecessaryEv() nounwind {
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entry:
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%0 = tail call i32 @pthread_mutex_lock(ptr @_ZN3WTFL13pageheap_lockE) nounwind
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%.b24 = load i1, ptr @_ZN3WTFL10tsd_initedE.b, align 4 ; <i1> [#uses=1]
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br i1 %.b24, label %bb5, label %bb6
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bb5: ; preds = %entry
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%1 = tail call ptr @pthread_self() nounwind
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br label %bb6
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bb6: ; preds = %bb5, %entry
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%me.0 = phi ptr [ %1, %bb5 ], [ null, %entry ] ; <ptr> [#uses=2]
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br label %bb11
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bb7: ; preds = %bb11
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%2 = getelementptr inbounds %"struct.WTF::TCMalloc_ThreadCache", ptr %h.0, i32 0, i32 1
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%3 = load ptr, ptr %2, align 4
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%4 = tail call i32 @pthread_equal(ptr %3, ptr %me.0) nounwind
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%5 = icmp eq i32 %4, 0
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br i1 %5, label %bb10, label %bb14
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bb10: ; preds = %bb7
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%6 = getelementptr inbounds %"struct.WTF::TCMalloc_ThreadCache", ptr %h.0, i32 0, i32 6
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br label %bb11
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bb11: ; preds = %bb10, %bb6
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%h.0.in = phi ptr [ @_ZN3WTFL12thread_heapsE, %bb6 ], [ %6, %bb10 ] ; <ptr> [#uses=1]
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%h.0 = load ptr, ptr %h.0.in, align 4 ; <ptr> [#uses=4]
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%7 = icmp eq ptr %h.0, null
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br i1 %7, label %bb13, label %bb7
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bb13: ; preds = %bb11
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%8 = tail call ptr @_ZN3WTF20TCMalloc_ThreadCache7NewHeapEP17_opaque_pthread_t(ptr %me.0) nounwind
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br label %bb14
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bb14: ; preds = %bb13, %bb7
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%heap.1 = phi ptr [ %8, %bb13 ], [ %h.0, %bb7 ] ; <ptr> [#uses=4]
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%9 = tail call i32 @pthread_mutex_unlock(ptr @_ZN3WTFL13pageheap_lockE) nounwind
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%10 = getelementptr inbounds %"struct.WTF::TCMalloc_ThreadCache", ptr %heap.1, i32 0, i32 2
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%11 = load i8, ptr %10, align 4
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%toBool15not = icmp eq i8 %11, 0 ; <i1> [#uses=1]
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br i1 %toBool15not, label %bb19, label %bb22
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bb19: ; preds = %bb14
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%.b = load i1, ptr @_ZN3WTFL10tsd_initedE.b, align 4 ; <i1> [#uses=1]
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br i1 %.b, label %bb21, label %bb22
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bb21: ; preds = %bb19
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store i8 1, ptr %10, align 4
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%12 = load i32, ptr @_ZN3WTFL8heap_keyE, align 4
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%13 = tail call i32 @pthread_setspecific(i32 %12, ptr %heap.1) nounwind
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ret ptr %heap.1
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bb22: ; preds = %bb19, %bb14
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ret ptr %heap.1
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}
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declare i32 @pthread_mutex_lock(ptr)
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declare i32 @pthread_mutex_unlock(ptr)
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declare hidden ptr @_ZN3WTF20TCMalloc_ThreadCache7NewHeapEP17_opaque_pthread_t(ptr) nounwind
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declare i32 @pthread_setspecific(i32, ptr)
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declare ptr @pthread_self()
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declare i32 @pthread_equal(ptr, ptr)
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