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llvm-project/llvm/test/CodeGen/ARM/interval-update-remat.ll

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Recommit r265547, and r265610,r265639,r265657 on top of it, plus two fixes with one about error verify-regalloc reported, and another about live range update of phi after rematerialization. r265547: Replace analyzeSiblingValues with new algorithm to fix its compile time issue. The patch is to solve PR17409 and its duplicates. analyzeSiblingValues is a N x N complexity algorithm where N is the number of siblings generated by reg splitting. Although it causes siginificant compile time issue when N is large, it is also important for performance since it removes redundent spills and enables rematerialization. To solve the compile time issue, the patch removes analyzeSiblingValues and replaces it with lower cost alternatives containing two parts. The first part creates a new spill hoisting method in postOptimization of register allocation. It does spill hoisting at once after all the spills are generated instead of inside every instance of selectOrSplit. The second part queries the define expr of the original register for rematerializaiton and keep it always available during register allocation even if it is already dead. It deletes those dead instructions only in postOptimization. With the two parts in the patch, it can remove analyzeSiblingValues without sacrificing performance. Patches on top of r265547: r265610 "Fix the compare-clang diff error introduced by r265547." r265639 "Fix the sanitizer bootstrap error in r265547." r265657 "InlineSpiller.cpp: Escap \@ in r265547. [-Wdocumentation]" Differential Revision: http://reviews.llvm.org/D15302 Differential Revision: http://reviews.llvm.org/D18934 Differential Revision: http://reviews.llvm.org/D18935 Differential Revision: http://reviews.llvm.org/D18936 llvm-svn: 266162
2016-04-13 11:08:27 +08:00
; RUN: llc -verify-regalloc < %s
; PR27275: When enabling remat for vreg defined by PHIs, make sure the update
; of the live range removes dead phi. Otherwise, we may end up with PHIs with
; incorrect operands and that will trigger assertions or verifier failures
; in later passes.
target datalayout = "e-m:o-p:32:32-f64:32:64-v64:32:64-v128:32:128-a:0:32-n32-S32"
target triple = "thumbv7-apple-ios9.0.0"
%class.SOCKSClientSocketPoolTest_AsyncSOCKSConnectError_Test.1.226.276.1301.2326 = type { %class.MockTransportClientSocketPool.0.225.275.1300.2325, i32 }
%class.MockTransportClientSocketPool.0.225.275.1300.2325 = type { i8 }
%class.StaticSocketDataProvider.6.231.281.1306.2331 = type { i8, %struct.MockConnect.5.230.280.1305.2330 }
%struct.MockConnect.5.230.280.1305.2330 = type { %class.IPEndPoint.4.229.279.1304.2329 }
%class.IPEndPoint.4.229.279.1304.2329 = type { %class.IPAddress.3.228.278.1303.2328 }
%class.IPAddress.3.228.278.1303.2328 = type { %"class.(anonymous namespace)::vector.2.227.277.1302.2327" }
%"class.(anonymous namespace)::vector.2.227.277.1302.2327" = type { i8 }
%class.TestCompletionCallback.9.234.284.1309.2334 = type { %class.TestCompletionCallbackTemplate.8.233.283.1308.2333, i32 }
%class.TestCompletionCallbackTemplate.8.233.283.1308.2333 = type { i32 }
%class.AssertionResult.24.249.299.1324.2349 = type { i8, %class.scoped_ptr.23.248.298.1323.2348 }
%class.scoped_ptr.23.248.298.1323.2348 = type { %class.Trans_NS___1_basic_string.18.243.293.1318.2343* }
%class.Trans_NS___1_basic_string.18.243.293.1318.2343 = type { %class.Trans_NS___1___libcpp_compressed_pair_imp.17.242.292.1317.2342 }
%class.Trans_NS___1___libcpp_compressed_pair_imp.17.242.292.1317.2342 = type { %"struct.Trans_NS___1_basic_string<char, int, int>::__rep.16.241.291.1316.2341" }
%"struct.Trans_NS___1_basic_string<char, int, int>::__rep.16.241.291.1316.2341" = type { %"struct.Trans_NS___1_basic_string<char, int, int>::__long.15.240.290.1315.2340" }
%"struct.Trans_NS___1_basic_string<char, int, int>::__long.15.240.290.1315.2340" = type { i64, i32 }
%class.AssertHelper.10.235.285.1310.2335 = type { i8 }
%class.Message.13.238.288.1313.2338 = type { %class.scoped_ptr.0.12.237.287.1312.2337 }
%class.scoped_ptr.0.12.237.287.1312.2337 = type { %"class.(anonymous namespace)::basic_stringstream.11.236.286.1311.2336"* }
%"class.(anonymous namespace)::basic_stringstream.11.236.286.1311.2336" = type { i8 }
%class.scoped_refptr.19.244.294.1319.2344 = type { i8 }
%class.BoundNetLog.20.245.295.1320.2345 = type { i32 }
%struct.MockReadWrite.7.232.282.1307.2332 = type { i32 }
%"class.(anonymous namespace)::basic_iostream.22.247.297.1322.2347" = type { i8 }
%class.ClientSocketHandle.14.239.289.1314.2339 = type { i8 }
%"class.(anonymous namespace)::__vector_base.21.246.296.1321.2346" = type { i8 }
@.str = private unnamed_addr constant [1 x i8] zeroinitializer, align 1
define void @_ZN53SOCKSClientSocketPoolTest_AsyncSOCKSConnectError_Test6m_fn10Ev(%class.SOCKSClientSocketPoolTest_AsyncSOCKSConnectError_Test.1.226.276.1301.2326* %this) align 2 {
entry:
%socket_data = alloca %class.StaticSocketDataProvider.6.231.281.1306.2331, align 1
%agg.tmp = alloca %struct.MockConnect.5.230.280.1305.2330, align 1
%callback = alloca %class.TestCompletionCallback.9.234.284.1309.2334, align 4
%gtest_ar = alloca %class.AssertionResult.24.249.299.1324.2349, align 4
%temp.lvalue = alloca %class.AssertHelper.10.235.285.1310.2335, align 1
%agg.tmp10 = alloca %class.Message.13.238.288.1313.2338, align 4
%ref.tmp = alloca %class.Trans_NS___1_basic_string.18.243.293.1318.2343, align 4
%agg.tmp16 = alloca %class.scoped_refptr.19.244.294.1319.2344, align 1
%agg.tmp18 = alloca %class.BoundNetLog.20.245.295.1320.2345, align 4
%call2 = call %class.StaticSocketDataProvider.6.231.281.1306.2331* @_ZN24StaticSocketDataProviderC1EP13MockReadWritejS1_j(%class.StaticSocketDataProvider.6.231.281.1306.2331* nonnull %socket_data, %struct.MockReadWrite.7.232.282.1307.2332* undef, i32 1, %struct.MockReadWrite.7.232.282.1307.2332* null, i32 0)
%call3 = call %struct.MockConnect.5.230.280.1305.2330* @_ZN11MockConnectC1Ev(%struct.MockConnect.5.230.280.1305.2330* nonnull %agg.tmp)
call void @_ZN24StaticSocketDataProvider5m_fn8E11MockConnect(%class.StaticSocketDataProvider.6.231.281.1306.2331* nonnull %socket_data, %struct.MockConnect.5.230.280.1305.2330* nonnull %agg.tmp)
%call5 = call %class.TestCompletionCallback.9.234.284.1309.2334* @_ZN22TestCompletionCallbackC1Ev(%class.TestCompletionCallback.9.234.284.1309.2334* nonnull %callback)
%transport_socket_pool_ = getelementptr inbounds %class.SOCKSClientSocketPoolTest_AsyncSOCKSConnectError_Test.1.226.276.1301.2326, %class.SOCKSClientSocketPoolTest_AsyncSOCKSConnectError_Test.1.226.276.1301.2326* %this, i32 0, i32 0
%call6 = call i32 @_ZN29MockTransportClientSocketPool5m_fn9Ev(%class.MockTransportClientSocketPool.0.225.275.1300.2325* %transport_socket_pool_)
call void @_Z11CmpHelperEQPcS_xx(%class.AssertionResult.24.249.299.1324.2349* nonnull sret %gtest_ar, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i32 0, i32 0), i64 0, i64 undef)
%tmp = load i8, i8* undef, align 4
%tobool.i = icmp eq i8 %tmp, 0
br i1 %tobool.i, label %if.else, label %if.end
if.else: ; preds = %entry
br i1 undef, label %_ZN15AssertionResult5m_fn6Ev.exit, label %cond.true.i
cond.true.i: ; preds = %if.else
%call4.i = call i8* @_ZN25Trans_NS___1_basic_stringIciiE5m_fn1Ev(%class.Trans_NS___1_basic_string.18.243.293.1318.2343* nonnull undef)
br label %_ZN15AssertionResult5m_fn6Ev.exit
_ZN15AssertionResult5m_fn6Ev.exit: ; preds = %cond.true.i, %if.else
%cond.i = phi i8* [ %call4.i, %cond.true.i ], [ getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i32 0, i32 0), %if.else ]
%call9 = call %class.AssertHelper.10.235.285.1310.2335* @_ZN12AssertHelperC1EPKc(%class.AssertHelper.10.235.285.1310.2335* nonnull %temp.lvalue, i8* %cond.i)
%call11 = call %class.Message.13.238.288.1313.2338* @_ZN7MessageC1Ev(%class.Message.13.238.288.1313.2338* nonnull %agg.tmp10)
call void @_ZN12AssertHelperaSE7Message(%class.AssertHelper.10.235.285.1310.2335* nonnull %temp.lvalue, %class.Message.13.238.288.1313.2338* nonnull %agg.tmp10)
%call.i.i.i.i27 = call zeroext i1 @_Z6IsTruev()
%brmerge = or i1 false, undef
br i1 %brmerge, label %_ZN7MessageD1Ev.exit33, label %delete.notnull.i.i.i.i32
delete.notnull.i.i.i.i32: ; preds = %_ZN15AssertionResult5m_fn6Ev.exit
%call.i.i.i.i.i.i31 = call %"class.(anonymous namespace)::basic_iostream.22.247.297.1322.2347"* @_ZN12_GLOBAL__N_114basic_iostreamD2Ev(%"class.(anonymous namespace)::basic_iostream.22.247.297.1322.2347"* undef)
call void @_ZdlPv(i8* undef)
br label %_ZN7MessageD1Ev.exit33
_ZN7MessageD1Ev.exit33: ; preds = %delete.notnull.i.i.i.i32, %_ZN15AssertionResult5m_fn6Ev.exit
%call13 = call %class.AssertHelper.10.235.285.1310.2335* @_ZN12AssertHelperD1Ev(%class.AssertHelper.10.235.285.1310.2335* nonnull %temp.lvalue)
br label %if.end
if.end: ; preds = %_ZN7MessageD1Ev.exit33, %entry
%message_.i.i = getelementptr inbounds %class.AssertionResult.24.249.299.1324.2349, %class.AssertionResult.24.249.299.1324.2349* %gtest_ar, i32 0, i32 1
%call.i.i.i = call %class.scoped_ptr.23.248.298.1323.2348* @_ZN10scoped_ptrI25Trans_NS___1_basic_stringIciiEED2Ev(%class.scoped_ptr.23.248.298.1323.2348* %message_.i.i)
call void @llvm.memset.p0i8.i32(i8* null, i8 0, i32 12, i32 4, i1 false)
call void @_ZN25Trans_NS___1_basic_stringIciiE5m_fn2Ev(%class.Trans_NS___1_basic_string.18.243.293.1318.2343* nonnull %ref.tmp)
call void @_Z19CreateSOCKSv5Paramsv(%class.scoped_refptr.19.244.294.1319.2344* nonnull sret %agg.tmp16)
%callback_.i = getelementptr inbounds %class.TestCompletionCallback.9.234.284.1309.2334, %class.TestCompletionCallback.9.234.284.1309.2334* %callback, i32 0, i32 1
%pool_ = getelementptr inbounds %class.SOCKSClientSocketPoolTest_AsyncSOCKSConnectError_Test.1.226.276.1301.2326, %class.SOCKSClientSocketPoolTest_AsyncSOCKSConnectError_Test.1.226.276.1301.2326* %this, i32 0, i32 1
%tmp1 = getelementptr inbounds %class.BoundNetLog.20.245.295.1320.2345, %class.BoundNetLog.20.245.295.1320.2345* %agg.tmp18, i32 0, i32 0
store i32 0, i32* %tmp1, align 4
call void @_ZN18ClientSocketHandle5m_fn3IPiEEvRK25Trans_NS___1_basic_stringIciiE13scoped_refptr15RequestPriorityN16ClientSocketPool13RespectLimitsERiT_11BoundNetLog(%class.ClientSocketHandle.14.239.289.1314.2339* nonnull undef, %class.Trans_NS___1_basic_string.18.243.293.1318.2343* nonnull dereferenceable(12) %ref.tmp, %class.scoped_refptr.19.244.294.1319.2344* nonnull %agg.tmp16, i32 0, i32 1, i32* nonnull dereferenceable(4) %callback_.i, i32* %pool_, %class.BoundNetLog.20.245.295.1320.2345* nonnull %agg.tmp18)
%call19 = call %class.BoundNetLog.20.245.295.1320.2345* @_ZN11BoundNetLogD1Ev(%class.BoundNetLog.20.245.295.1320.2345* nonnull %agg.tmp18)
call void @_Z11CmpHelperEQPcS_xx(%class.AssertionResult.24.249.299.1324.2349* nonnull sret undef, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i32 0, i32 0), i8* getelementptr inbounds ([1 x i8], [1 x i8]* @.str, i32 0, i32 0), i64 -1, i64 0)
br i1 undef, label %if.then.i.i.i.i, label %_ZN7MessageD1Ev.exit
if.then.i.i.i.i: ; preds = %if.end
%tmp2 = load %"class.(anonymous namespace)::basic_stringstream.11.236.286.1311.2336"*, %"class.(anonymous namespace)::basic_stringstream.11.236.286.1311.2336"** undef, align 4
br label %_ZN7MessageD1Ev.exit
_ZN7MessageD1Ev.exit: ; preds = %if.then.i.i.i.i, %if.end
%connect_.i.i = getelementptr inbounds %class.StaticSocketDataProvider.6.231.281.1306.2331, %class.StaticSocketDataProvider.6.231.281.1306.2331* %socket_data, i32 0, i32 1
%tmp3 = bitcast %struct.MockConnect.5.230.280.1305.2330* %connect_.i.i to %"class.(anonymous namespace)::__vector_base.21.246.296.1321.2346"*
%call.i.i.i.i.i.i.i.i.i.i = call %"class.(anonymous namespace)::__vector_base.21.246.296.1321.2346"* @_ZN12_GLOBAL__N_113__vector_baseD2Ev(%"class.(anonymous namespace)::__vector_base.21.246.296.1321.2346"* %tmp3)
ret void
}
; Function Attrs: argmemonly nounwind
declare void @llvm.lifetime.start(i64, i8* nocapture) #0
declare %class.StaticSocketDataProvider.6.231.281.1306.2331* @_ZN24StaticSocketDataProviderC1EP13MockReadWritejS1_j(%class.StaticSocketDataProvider.6.231.281.1306.2331* returned, %struct.MockReadWrite.7.232.282.1307.2332*, i32, %struct.MockReadWrite.7.232.282.1307.2332*, i32) unnamed_addr
declare void @_ZN24StaticSocketDataProvider5m_fn8E11MockConnect(%class.StaticSocketDataProvider.6.231.281.1306.2331*, %struct.MockConnect.5.230.280.1305.2330*)
declare %struct.MockConnect.5.230.280.1305.2330* @_ZN11MockConnectC1Ev(%struct.MockConnect.5.230.280.1305.2330* returned) unnamed_addr
declare %class.TestCompletionCallback.9.234.284.1309.2334* @_ZN22TestCompletionCallbackC1Ev(%class.TestCompletionCallback.9.234.284.1309.2334* returned) unnamed_addr
declare i32 @_ZN29MockTransportClientSocketPool5m_fn9Ev(%class.MockTransportClientSocketPool.0.225.275.1300.2325*)
declare %class.AssertHelper.10.235.285.1310.2335* @_ZN12AssertHelperC1EPKc(%class.AssertHelper.10.235.285.1310.2335* returned, i8*) unnamed_addr
declare void @_ZN12AssertHelperaSE7Message(%class.AssertHelper.10.235.285.1310.2335*, %class.Message.13.238.288.1313.2338*)
declare %class.Message.13.238.288.1313.2338* @_ZN7MessageC1Ev(%class.Message.13.238.288.1313.2338* returned) unnamed_addr
declare %class.AssertHelper.10.235.285.1310.2335* @_ZN12AssertHelperD1Ev(%class.AssertHelper.10.235.285.1310.2335* returned) unnamed_addr
; Function Attrs: argmemonly nounwind
declare void @llvm.lifetime.end(i64, i8* nocapture) #0
declare void @_ZN18ClientSocketHandle5m_fn3IPiEEvRK25Trans_NS___1_basic_stringIciiE13scoped_refptr15RequestPriorityN16ClientSocketPool13RespectLimitsERiT_11BoundNetLog(%class.ClientSocketHandle.14.239.289.1314.2339*, %class.Trans_NS___1_basic_string.18.243.293.1318.2343* dereferenceable(12), %class.scoped_refptr.19.244.294.1319.2344*, i32, i32, i32* dereferenceable(4), i32*, %class.BoundNetLog.20.245.295.1320.2345*)
declare void @_Z19CreateSOCKSv5Paramsv(%class.scoped_refptr.19.244.294.1319.2344* sret)
; Function Attrs: argmemonly nounwind
declare void @llvm.memset.p0i8.i32(i8* nocapture, i8, i32, i32, i1) #0
declare %class.BoundNetLog.20.245.295.1320.2345* @_ZN11BoundNetLogD1Ev(%class.BoundNetLog.20.245.295.1320.2345* returned) unnamed_addr
declare %class.scoped_refptr.19.244.294.1319.2344* @_ZN13scoped_refptrD1Ev(%class.scoped_refptr.19.244.294.1319.2344* returned) unnamed_addr
declare %"class.(anonymous namespace)::__vector_base.21.246.296.1321.2346"* @_ZN12_GLOBAL__N_113__vector_baseD2Ev(%"class.(anonymous namespace)::__vector_base.21.246.296.1321.2346"* returned) unnamed_addr
declare i8* @_ZN25Trans_NS___1_basic_stringIciiE5m_fn1Ev(%class.Trans_NS___1_basic_string.18.243.293.1318.2343*)
declare zeroext i1 @_Z6IsTruev()
declare void @_ZdlPv(i8*)
declare %"class.(anonymous namespace)::basic_iostream.22.247.297.1322.2347"* @_ZN12_GLOBAL__N_114basic_iostreamD2Ev(%"class.(anonymous namespace)::basic_iostream.22.247.297.1322.2347"* returned) unnamed_addr
declare %class.scoped_ptr.23.248.298.1323.2348* @_ZN10scoped_ptrI25Trans_NS___1_basic_stringIciiEED2Ev(%class.scoped_ptr.23.248.298.1323.2348* readonly returned) unnamed_addr align 2
declare void @_Z11CmpHelperEQPcS_xx(%class.AssertionResult.24.249.299.1324.2349* sret, i8*, i8*, i64, i64)
declare void @_ZN25Trans_NS___1_basic_stringIciiE5m_fn2Ev(%class.Trans_NS___1_basic_string.18.243.293.1318.2343*)
attributes #0 = { argmemonly nounwind }