From 30ac0467ced4627a9b84d8a1d3ca5e8706ddad63 Mon Sep 17 00:00:00 2001 From: Jakob Stoklund Olesen Date: Wed, 6 Jan 2010 23:47:07 +0000 Subject: Add Target hook to duplicate machine instructions. Some instructions refer to unique labels, and so cannot be trivially cloned with CloneMachineInstr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92873 91177308-0d34-0410-b5e6-96231b3b80d8 --- .../Thumb2/2010-01-06-TailDuplicateLabels.ll | 87 ++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 test/CodeGen/Thumb2/2010-01-06-TailDuplicateLabels.ll (limited to 'test/CodeGen/Thumb2/2010-01-06-TailDuplicateLabels.ll') diff --git a/test/CodeGen/Thumb2/2010-01-06-TailDuplicateLabels.ll b/test/CodeGen/Thumb2/2010-01-06-TailDuplicateLabels.ll new file mode 100644 index 0000000..a632715 --- /dev/null +++ b/test/CodeGen/Thumb2/2010-01-06-TailDuplicateLabels.ll @@ -0,0 +1,87 @@ +; RUN: llc -relocation-model=pic -pre-regalloc-taildup < %s | grep {:$} | sort | uniq -d | count 0 +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" +target triple = "thumbv7-apple-darwin10" + +%struct.PlatformMutex = type { i32, [40 x i8] } +%struct.SpinLock = type { %struct.PlatformMutex } +%"struct.WTF::TCMalloc_ThreadCache" = type { i32, %struct._opaque_pthread_t*, i8, [68 x %"struct.WTF::TCMalloc_ThreadCache_FreeList"], i32, i32, %"struct.WTF::TCMalloc_ThreadCache"*, %"struct.WTF::TCMalloc_ThreadCache"* } +%"struct.WTF::TCMalloc_ThreadCache_FreeList" = type { i8*, i16, i16 } +%struct.__darwin_pthread_handler_rec = type { void (i8*)*, i8*, %struct.__darwin_pthread_handler_rec* } +%struct._opaque_pthread_t = type { i32, %struct.__darwin_pthread_handler_rec*, [596 x i8] } + +@_ZN3WTFL8heap_keyE = internal global i32 0 ; [#uses=1] +@_ZN3WTFL10tsd_initedE.b = internal global i1 false ; [#uses=2] +@_ZN3WTFL13pageheap_lockE = internal global %struct.SpinLock { %struct.PlatformMutex { i32 850045863, [40 x i8] zeroinitializer } } ; <%struct.SpinLock*> [#uses=1] +@_ZN3WTFL12thread_heapsE = internal global %"struct.WTF::TCMalloc_ThreadCache"* null ; <%"struct.WTF::TCMalloc_ThreadCache"**> [#uses=1] +@llvm.used = appending global [1 x i8*] [i8* bitcast (%"struct.WTF::TCMalloc_ThreadCache"* ()* @_ZN3WTF20TCMalloc_ThreadCache22CreateCacheIfNecessaryEv to i8*)], section "llvm.metadata" ; <[1 x i8*]*> [#uses=0] + +define arm_apcscc %"struct.WTF::TCMalloc_ThreadCache"* @_ZN3WTF20TCMalloc_ThreadCache22CreateCacheIfNecessaryEv() nounwind { +entry: + %0 = tail call arm_apcscc i32 @pthread_mutex_lock(%struct.PlatformMutex* getelementptr inbounds (%struct.SpinLock* @_ZN3WTFL13pageheap_lockE, i32 0, i32 0)) nounwind + %.b24 = load i1* @_ZN3WTFL10tsd_initedE.b, align 4 ; [#uses=1] + br i1 %.b24, label %bb5, label %bb6 + +bb5: ; preds = %entry + %1 = tail call arm_apcscc %struct._opaque_pthread_t* @pthread_self() nounwind + br label %bb6 + +bb6: ; preds = %bb5, %entry + %me.0 = phi %struct._opaque_pthread_t* [ %1, %bb5 ], [ null, %entry ] ; <%struct._opaque_pthread_t*> [#uses=2] + br label %bb11 + +bb7: ; preds = %bb11 + %2 = getelementptr inbounds %"struct.WTF::TCMalloc_ThreadCache"* %h.0, i32 0, i32 1 + %3 = load %struct._opaque_pthread_t** %2, align 4 + %4 = tail call arm_apcscc i32 @pthread_equal(%struct._opaque_pthread_t* %3, %struct._opaque_pthread_t* %me.0) nounwind + %5 = icmp eq i32 %4, 0 + br i1 %5, label %bb10, label %bb14 + +bb10: ; preds = %bb7 + %6 = getelementptr inbounds %"struct.WTF::TCMalloc_ThreadCache"* %h.0, i32 0, i32 6 + br label %bb11 + +bb11: ; preds = %bb10, %bb6 + %h.0.in = phi %"struct.WTF::TCMalloc_ThreadCache"** [ @_ZN3WTFL12thread_heapsE, %bb6 ], [ %6, %bb10 ] ; <%"struct.WTF::TCMalloc_ThreadCache"**> [#uses=1] + %h.0 = load %"struct.WTF::TCMalloc_ThreadCache"** %h.0.in, align 4 ; <%"struct.WTF::TCMalloc_ThreadCache"*> [#uses=4] + %7 = icmp eq %"struct.WTF::TCMalloc_ThreadCache"* %h.0, null + br i1 %7, label %bb13, label %bb7 + +bb13: ; preds = %bb11 + %8 = tail call arm_apcscc %"struct.WTF::TCMalloc_ThreadCache"* @_ZN3WTF20TCMalloc_ThreadCache7NewHeapEP17_opaque_pthread_t(%struct._opaque_pthread_t* %me.0) nounwind + br label %bb14 + +bb14: ; preds = %bb13, %bb7 + %heap.1 = phi %"struct.WTF::TCMalloc_ThreadCache"* [ %8, %bb13 ], [ %h.0, %bb7 ] ; <%"struct.WTF::TCMalloc_ThreadCache"*> [#uses=4] + %9 = tail call arm_apcscc i32 @pthread_mutex_unlock(%struct.PlatformMutex* getelementptr inbounds (%struct.SpinLock* @_ZN3WTFL13pageheap_lockE, i32 0, i32 0)) nounwind + %10 = getelementptr inbounds %"struct.WTF::TCMalloc_ThreadCache"* %heap.1, i32 0, i32 2 + %11 = load i8* %10, align 4 + %toBool15not = icmp eq i8 %11, 0 ; [#uses=1] + br i1 %toBool15not, label %bb19, label %bb22 + +bb19: ; preds = %bb14 + %.b = load i1* @_ZN3WTFL10tsd_initedE.b, align 4 ; [#uses=1] + br i1 %.b, label %bb21, label %bb22 + +bb21: ; preds = %bb19 + store i8 1, i8* %10, align 4 + %12 = load i32* @_ZN3WTFL8heap_keyE, align 4 + %13 = bitcast %"struct.WTF::TCMalloc_ThreadCache"* %heap.1 to i8* + %14 = tail call arm_apcscc i32 @pthread_setspecific(i32 %12, i8* %13) nounwind + ret %"struct.WTF::TCMalloc_ThreadCache"* %heap.1 + +bb22: ; preds = %bb19, %bb14 + ret %"struct.WTF::TCMalloc_ThreadCache"* %heap.1 +} + +declare arm_apcscc i32 @pthread_mutex_lock(%struct.PlatformMutex*) + +declare arm_apcscc i32 @pthread_mutex_unlock(%struct.PlatformMutex*) + +declare hidden arm_apcscc %"struct.WTF::TCMalloc_ThreadCache"* @_ZN3WTF20TCMalloc_ThreadCache7NewHeapEP17_opaque_pthread_t(%struct._opaque_pthread_t*) nounwind + +declare arm_apcscc i32 @pthread_setspecific(i32, i8*) + +declare arm_apcscc %struct._opaque_pthread_t* @pthread_self() + +declare arm_apcscc i32 @pthread_equal(%struct._opaque_pthread_t*, %struct._opaque_pthread_t*) + -- cgit v1.1