From 719354a57191bff29f502b365ebf94c8b1c2a5d2 Mon Sep 17 00:00:00 2001 From: Nikita Popov Date: Fri, 26 Nov 2021 22:17:27 +0100 Subject: [PATCH] Revert "[SCEV] Fix and validate ValueExprMap/ExprValueMap consistency" This reverts commit bee8dcda1f01831808885ea23f9ac1467ce660f5. Some sanitizer buildbots fail with: > Attempt to use a SCEVCouldNotCompute object! For example: https://lab.llvm.org/buildbot/#/builders/85/builds/7020/steps/9/logs/stdio --- llvm/include/llvm/Analysis/ScalarEvolution.h | 3 - llvm/lib/Analysis/ScalarEvolution.cpp | 77 +-- llvm/test/CodeGen/PowerPC/more-dq-form-prepare.ll | 533 +++++++++++---------- .../LoopStrengthReduce/X86/nested-ptr-addrec.ll | 61 --- 4 files changed, 286 insertions(+), 388 deletions(-) delete mode 100644 llvm/test/Transforms/LoopStrengthReduce/X86/nested-ptr-addrec.ll diff --git a/llvm/include/llvm/Analysis/ScalarEvolution.h b/llvm/include/llvm/Analysis/ScalarEvolution.h index 4cfbf49..a226068 100644 --- a/llvm/include/llvm/Analysis/ScalarEvolution.h +++ b/llvm/include/llvm/Analysis/ScalarEvolution.h @@ -1923,9 +1923,6 @@ private: /// Erase Value from ValueExprMap and ExprValueMap. void eraseValueFromMap(Value *V); - /// Insert V to S mapping into ValueExprMap and ExprValueMap. - void insertValueToMap(Value *V, const SCEV *S); - /// Return false iff given SCEV contains a SCEVUnknown with NULL value- /// pointer. bool checkValidity(const SCEV *S) const; diff --git a/llvm/lib/Analysis/ScalarEvolution.cpp b/llvm/lib/Analysis/ScalarEvolution.cpp index a6e4e84..4cdb833 100644 --- a/llvm/lib/Analysis/ScalarEvolution.cpp +++ b/llvm/lib/Analysis/ScalarEvolution.cpp @@ -4094,18 +4094,6 @@ void ScalarEvolution::eraseValueFromMap(Value *V) { } } -void ScalarEvolution::insertValueToMap(Value *V, const SCEV *S) { - auto It = ValueExprMap.find_as(V); - if (It == ValueExprMap.end()) { - ValueExprMap.insert({SCEVCallbackVH(V, this), S}); - ExprValueMap[S].insert({V, nullptr}); - } else { - // A recursive query may have already computed the SCEV. It should have - // arrived at the same value. - assert(It->second == S); - } -} - /// Return an existing SCEV if it exists, otherwise analyze the expression and /// create a new one. const SCEV *ScalarEvolution::getSCEV(Value *V) { @@ -4467,7 +4455,9 @@ void ScalarEvolution::forgetSymbolicName(Instruction *PN, const SCEV *SymName) { // In the second case, createNodeForPHI will perform the necessary // updates on its own when it gets to that point. In the third, we do // want to forget the SCEVUnknown. - if (!isa(I) || !isa(Old) || Old == SymName) { + if (!isa(I) || + !isa(Old) || + (I != PN && Old == SymName)) { eraseValueFromMap(It->first); ToForget.push_back(Old); } @@ -5345,7 +5335,8 @@ const SCEV *ScalarEvolution::createSimpleAffineAddRec(PHINode *PN, const SCEV *StartVal = getSCEV(StartValueV); const SCEV *PHISCEV = getAddRecExpr(StartVal, Accum, L, Flags); - insertValueToMap(PN, PHISCEV); + + ValueExprMap[SCEVCallbackVH(PN, this)] = PHISCEV; // We can add Flags to the post-inc expression only if we // know that it is *undefined behavior* for BEValueV to @@ -5398,7 +5389,7 @@ const SCEV *ScalarEvolution::createAddRecFromPHI(PHINode *PN) { // Handle PHI node value symbolically. const SCEV *SymbolicName = getUnknown(PN); - insertValueToMap(PN, SymbolicName); + ValueExprMap.insert({SCEVCallbackVH(PN, this), SymbolicName}); // Using this symbolic name for the PHI, analyze the value coming around // the back-edge. @@ -5470,7 +5461,7 @@ const SCEV *ScalarEvolution::createAddRecFromPHI(PHINode *PN) { // to be symbolic. We now need to go back and purge all of the // entries for the scalars that use the symbolic expression. forgetSymbolicName(PN, SymbolicName); - insertValueToMap(PN, PHISCEV); + ValueExprMap[SCEVCallbackVH(PN, this)] = PHISCEV; // We can add Flags to the post-inc expression only if we // know that it is *undefined behavior* for BEValueV to @@ -5502,7 +5493,7 @@ const SCEV *ScalarEvolution::createAddRecFromPHI(PHINode *PN) { // to be symbolic. We now need to go back and purge all of the // entries for the scalars that use the symbolic expression. forgetSymbolicName(PN, SymbolicName); - insertValueToMap(PN, Shifted); + ValueExprMap[SCEVCallbackVH(PN, this)] = Shifted; return Shifted; } } @@ -13005,20 +12996,9 @@ void ScalarEvolution::forgetMemoizedResultsImpl(const SCEV *S) { BlockDispositions.erase(S); UnsignedRanges.erase(S); SignedRanges.erase(S); + ExprValueMap.erase(S); HasRecMap.erase(S); MinTrailingZerosCache.erase(S); - - auto ExprIt = ExprValueMap.find(S); - if (ExprIt != ExprValueMap.end()) { - for (auto &ValueAndOffset : ExprIt->second) { - if (ValueAndOffset.second == nullptr) { - auto ValueIt = ValueExprMap.find_as(ValueAndOffset.first); - if (ValueIt != ValueExprMap.end()) - ValueExprMap.erase(ValueIt); - } - } - ExprValueMap.erase(ExprIt); - } } void @@ -13123,40 +13103,13 @@ void ScalarEvolution::verify() const { ValidLoops.insert(L); Worklist.append(L->begin(), L->end()); } + // Check for SCEV expressions referencing invalid/deleted loops. for (auto &KV : ValueExprMap) { - // Check for SCEV expressions referencing invalid/deleted loops. - if (auto *AR = dyn_cast(KV.second)) { - assert(ValidLoops.contains(AR->getLoop()) && - "AddRec references invalid loop"); - } - - // Check that the value is also part of the reverse map. - auto It = ExprValueMap.find(KV.second); - if (It == ExprValueMap.end() || !It->second.contains({KV.first, nullptr})) { - dbgs() << "Value " << *KV.first - << " is in ValueExprMap but not in ExprValueMap\n"; - std::abort(); - } - } - - for (const auto &KV : ExprValueMap) { - for (const auto &ValueAndOffset : KV.second) { - if (ValueAndOffset.second != nullptr) - continue; - - auto It = ValueExprMap.find_as(ValueAndOffset.first); - if (It == ValueExprMap.end()) { - dbgs() << "Value " << *ValueAndOffset.first - << " is in ExprValueMap but not in ValueExprMap\n"; - std::abort(); - } - if (It->second != KV.first) { - dbgs() << "Value " << *ValueAndOffset.first - << " mapped to " << *It->second - << " rather than " << *KV.first << "\n"; - std::abort(); - } - } + auto *AR = dyn_cast(KV.second); + if (!AR) + continue; + assert(ValidLoops.contains(AR->getLoop()) && + "AddRec references invalid loop"); } // Verify intergity of SCEV users. diff --git a/llvm/test/CodeGen/PowerPC/more-dq-form-prepare.ll b/llvm/test/CodeGen/PowerPC/more-dq-form-prepare.ll index 29c93f4..d5ef4e6 100644 --- a/llvm/test/CodeGen/PowerPC/more-dq-form-prepare.ll +++ b/llvm/test/CodeGen/PowerPC/more-dq-form-prepare.ll @@ -10,8 +10,8 @@ target triple = "powerpc64le-unknown-linux-gnu" define void @foo(i32* %.m, i32* %.n, [0 x %_elem_type_of_a]* %.a, [0 x %_elem_type_of_x]* %.x, i32* %.l, <2 x double>* %.vy01, <2 x double>* %.vy02, <2 x double>* %.vy03, <2 x double>* %.vy04, <2 x double>* %.vy05, <2 x double>* %.vy06, <2 x double>* %.vy07, <2 x double>* %.vy08, <2 x double>* %.vy09, <2 x double>* %.vy0a, <2 x double>* %.vy0b, <2 x double>* %.vy0c, <2 x double>* %.vy21, <2 x double>* %.vy22, <2 x double>* %.vy23, <2 x double>* %.vy24, <2 x double>* %.vy25, <2 x double>* %.vy26, <2 x double>* %.vy27, <2 x double>* %.vy28, <2 x double>* %.vy29, <2 x double>* %.vy2a, <2 x double>* %.vy2b, <2 x double>* %.vy2c) { ; CHECK-LABEL: foo: ; CHECK: # %bb.0: # %entry -; CHECK-NEXT: stdu 1, -592(1) -; CHECK-NEXT: .cfi_def_cfa_offset 592 +; CHECK-NEXT: stdu 1, -608(1) +; CHECK-NEXT: .cfi_def_cfa_offset 608 ; CHECK-NEXT: .cfi_offset r14, -192 ; CHECK-NEXT: .cfi_offset r15, -184 ; CHECK-NEXT: .cfi_offset r16, -176 @@ -48,313 +48,322 @@ define void @foo(i32* %.m, i32* %.n, [0 x %_elem_type_of_a]* %.a, [0 x %_elem_ty ; CHECK-NEXT: .cfi_offset v29, -240 ; CHECK-NEXT: .cfi_offset v30, -224 ; CHECK-NEXT: .cfi_offset v31, -208 -; CHECK-NEXT: lwz 4, 0(4) -; CHECK-NEXT: std 14, 400(1) # 8-byte Folded Spill -; CHECK-NEXT: std 15, 408(1) # 8-byte Folded Spill -; CHECK-NEXT: cmpwi 4, 1 -; CHECK-NEXT: std 16, 416(1) # 8-byte Folded Spill -; CHECK-NEXT: std 17, 424(1) # 8-byte Folded Spill -; CHECK-NEXT: std 18, 432(1) # 8-byte Folded Spill -; CHECK-NEXT: std 19, 440(1) # 8-byte Folded Spill -; CHECK-NEXT: std 20, 448(1) # 8-byte Folded Spill -; CHECK-NEXT: std 21, 456(1) # 8-byte Folded Spill -; CHECK-NEXT: std 22, 464(1) # 8-byte Folded Spill -; CHECK-NEXT: std 23, 472(1) # 8-byte Folded Spill -; CHECK-NEXT: std 24, 480(1) # 8-byte Folded Spill -; CHECK-NEXT: std 25, 488(1) # 8-byte Folded Spill -; CHECK-NEXT: std 26, 496(1) # 8-byte Folded Spill -; CHECK-NEXT: std 27, 504(1) # 8-byte Folded Spill -; CHECK-NEXT: std 28, 512(1) # 8-byte Folded Spill -; CHECK-NEXT: std 29, 520(1) # 8-byte Folded Spill -; CHECK-NEXT: std 30, 528(1) # 8-byte Folded Spill -; CHECK-NEXT: std 31, 536(1) # 8-byte Folded Spill -; CHECK-NEXT: stfd 26, 544(1) # 8-byte Folded Spill -; CHECK-NEXT: stfd 27, 552(1) # 8-byte Folded Spill -; CHECK-NEXT: stfd 28, 560(1) # 8-byte Folded Spill -; CHECK-NEXT: stfd 29, 568(1) # 8-byte Folded Spill -; CHECK-NEXT: stfd 30, 576(1) # 8-byte Folded Spill -; CHECK-NEXT: stfd 31, 584(1) # 8-byte Folded Spill -; CHECK-NEXT: stxv 52, 208(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 53, 224(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 54, 240(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 55, 256(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 56, 272(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 57, 288(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 58, 304(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 59, 320(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 60, 336(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 61, 352(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 62, 368(1) # 16-byte Folded Spill -; CHECK-NEXT: stxv 63, 384(1) # 16-byte Folded Spill +; CHECK-NEXT: lwz 0, 0(4) +; CHECK-NEXT: std 14, 416(1) # 8-byte Folded Spill +; CHECK-NEXT: std 15, 424(1) # 8-byte Folded Spill +; CHECK-NEXT: cmpwi 0, 1 +; CHECK-NEXT: std 16, 432(1) # 8-byte Folded Spill +; CHECK-NEXT: std 17, 440(1) # 8-byte Folded Spill +; CHECK-NEXT: std 18, 448(1) # 8-byte Folded Spill +; CHECK-NEXT: std 19, 456(1) # 8-byte Folded Spill +; CHECK-NEXT: std 20, 464(1) # 8-byte Folded Spill +; CHECK-NEXT: std 21, 472(1) # 8-byte Folded Spill +; CHECK-NEXT: std 22, 480(1) # 8-byte Folded Spill +; CHECK-NEXT: std 23, 488(1) # 8-byte Folded Spill +; CHECK-NEXT: std 24, 496(1) # 8-byte Folded Spill +; CHECK-NEXT: std 25, 504(1) # 8-byte Folded Spill +; CHECK-NEXT: std 26, 512(1) # 8-byte Folded Spill +; CHECK-NEXT: std 27, 520(1) # 8-byte Folded Spill +; CHECK-NEXT: std 28, 528(1) # 8-byte Folded Spill +; CHECK-NEXT: std 29, 536(1) # 8-byte Folded Spill +; CHECK-NEXT: std 30, 544(1) # 8-byte Folded Spill +; CHECK-NEXT: std 31, 552(1) # 8-byte Folded Spill +; CHECK-NEXT: stfd 26, 560(1) # 8-byte Folded Spill +; CHECK-NEXT: stfd 27, 568(1) # 8-byte Folded Spill +; CHECK-NEXT: stfd 28, 576(1) # 8-byte Folded Spill +; CHECK-NEXT: stfd 29, 584(1) # 8-byte Folded Spill +; CHECK-NEXT: stfd 30, 592(1) # 8-byte Folded Spill +; CHECK-NEXT: stfd 31, 600(1) # 8-byte Folded Spill +; CHECK-NEXT: stxv 52, 224(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 53, 240(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 54, 256(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 55, 272(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 56, 288(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 57, 304(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 58, 320(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 59, 336(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 60, 352(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 61, 368(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 62, 384(1) # 16-byte Folded Spill +; CHECK-NEXT: stxv 63, 400(1) # 16-byte Folded Spill ; CHECK-NEXT: blt 0, .LBB0_7 ; CHECK-NEXT: # %bb.1: # %_loop_1_do_.lr.ph ; CHECK-NEXT: lwz 3, 0(3) ; CHECK-NEXT: cmpwi 3, 1 ; CHECK-NEXT: blt 0, .LBB0_7 ; CHECK-NEXT: # %bb.2: # %_loop_1_do_.preheader -; CHECK-NEXT: mr 21, 5 -; CHECK-NEXT: ld 5, 848(1) -; CHECK-NEXT: lwa 0, 0(7) +; CHECK-NEXT: mr 23, 5 +; CHECK-NEXT: ld 5, 704(1) ; CHECK-NEXT: addi 3, 3, 1 -; CHECK-NEXT: mr 14, 7 -; CHECK-NEXT: mr 22, 6 +; CHECK-NEXT: ld 4, 728(1) ; CHECK-NEXT: mr 11, 10 -; CHECK-NEXT: ld 18, 736(1) -; CHECK-NEXT: ld 17, 728(1) -; CHECK-NEXT: std 8, 32(1) # 8-byte Folded Spill -; CHECK-NEXT: std 9, 40(1) # 8-byte Folded Spill +; CHECK-NEXT: mr 10, 6 +; CHECK-NEXT: std 8, 40(1) # 8-byte Folded Spill +; CHECK-NEXT: std 9, 48(1) # 8-byte Folded Spill +; CHECK-NEXT: lwa 7, 0(7) +; CHECK-NEXT: ld 29, 840(1) ; CHECK-NEXT: cmpldi 3, 9 -; CHECK-NEXT: ld 19, 744(1) -; CHECK-NEXT: ld 20, 752(1) -; CHECK-NEXT: std 5, 200(1) # 8-byte Folded Spill -; CHECK-NEXT: ld 5, 840(1) -; CHECK-NEXT: std 17, 80(1) # 8-byte Folded Spill -; CHECK-NEXT: std 18, 88(1) # 8-byte Folded Spill -; CHECK-NEXT: lxv 36, 0(18) -; CHECK-NEXT: std 19, 96(1) # 8-byte Folded Spill -; CHECK-NEXT: std 20, 104(1) # 8-byte Folded Spill -; CHECK-NEXT: lxv 13, 0(19) -; CHECK-NEXT: lxv 12, 0(20) -; CHECK-NEXT: ld 30, 832(1) -; CHECK-NEXT: ld 2, 824(1) -; CHECK-NEXT: ld 12, 816(1) -; CHECK-NEXT: ld 29, 808(1) -; CHECK-NEXT: std 2, 176(1) # 8-byte Folded Spill -; CHECK-NEXT: std 30, 184(1) # 8-byte Folded Spill -; CHECK-NEXT: std 29, 160(1) # 8-byte Folded Spill -; CHECK-NEXT: std 12, 168(1) # 8-byte Folded Spill -; CHECK-NEXT: std 5, 192(1) # 8-byte Folded Spill +; CHECK-NEXT: ld 27, 832(1) +; CHECK-NEXT: ld 28, 856(1) +; CHECK-NEXT: std 5, 112(1) # 8-byte Folded Spill +; CHECK-NEXT: std 4, 120(1) # 8-byte Folded Spill +; CHECK-NEXT: lxv 1, 0(5) ; CHECK-NEXT: li 5, 9 -; CHECK-NEXT: ld 28, 800(1) -; CHECK-NEXT: ld 27, 792(1) -; CHECK-NEXT: ld 26, 784(1) -; CHECK-NEXT: ld 25, 776(1) -; CHECK-NEXT: ld 24, 768(1) -; CHECK-NEXT: ld 23, 760(1) -; CHECK-NEXT: ld 16, 720(1) -; CHECK-NEXT: ld 15, 712(1) -; CHECK-NEXT: ld 6, 704(1) -; CHECK-NEXT: ld 7, 696(1) -; CHECK-NEXT: ld 10, 688(1) -; CHECK-NEXT: lxv 43, 0(8) -; CHECK-NEXT: std 11, 48(1) # 8-byte Folded Spill -; CHECK-NEXT: std 6, 56(1) # 8-byte Folded Spill -; CHECK-NEXT: std 27, 144(1) # 8-byte Folded Spill -; CHECK-NEXT: std 28, 152(1) # 8-byte Folded Spill -; CHECK-NEXT: mr 8, 7 -; CHECK-NEXT: std 25, 128(1) # 8-byte Folded Spill -; CHECK-NEXT: std 26, 136(1) # 8-byte Folded Spill -; CHECK-NEXT: std 15, 64(1) # 8-byte Folded Spill -; CHECK-NEXT: std 16, 72(1) # 8-byte Folded Spill -; CHECK-NEXT: std 23, 112(1) # 8-byte Folded Spill -; CHECK-NEXT: std 24, 120(1) # 8-byte Folded Spill +; CHECK-NEXT: ld 30, 848(1) +; CHECK-NEXT: lxv 0, 0(4) +; CHECK-NEXT: sldi 4, 7, 3 +; CHECK-NEXT: add 4, 4, 23 +; CHECK-NEXT: sldi 16, 7, 2 +; CHECK-NEXT: sldi 15, 7, 1 +; CHECK-NEXT: ld 17, 760(1) +; CHECK-NEXT: std 27, 192(1) # 8-byte Folded Spill +; CHECK-NEXT: std 29, 200(1) # 8-byte Folded Spill +; CHECK-NEXT: lxv 6, 0(29) +; CHECK-NEXT: ld 26, 824(1) +; CHECK-NEXT: ld 25, 816(1) +; CHECK-NEXT: ld 24, 808(1) +; CHECK-NEXT: std 30, 208(1) # 8-byte Folded Spill +; CHECK-NEXT: std 28, 216(1) # 8-byte Folded Spill +; CHECK-NEXT: std 25, 176(1) # 8-byte Folded Spill +; CHECK-NEXT: std 26, 184(1) # 8-byte Folded Spill +; CHECK-NEXT: std 24, 168(1) # 8-byte Folded Spill ; CHECK-NEXT: iselgt 3, 3, 5 -; CHECK-NEXT: sldi 5, 0, 3 -; CHECK-NEXT: add 5, 5, 21 -; CHECK-NEXT: lxv 42, 0(9) -; CHECK-NEXT: lxv 41, 0(11) -; CHECK-NEXT: lxv 40, 0(10) -; CHECK-NEXT: lxv 39, 0(7) -; CHECK-NEXT: mulli 11, 0, 48 -; CHECK-NEXT: addi 14, 5, 32 -; CHECK-NEXT: sldi 5, 0, 4 -; CHECK-NEXT: addi 3, 3, -2 -; CHECK-NEXT: lxv 38, 0(6) -; CHECK-NEXT: lxv 33, 0(15) -; CHECK-NEXT: lxv 32, 0(16) -; CHECK-NEXT: lxv 37, 0(17) -; CHECK-NEXT: add 5, 5, 21 -; CHECK-NEXT: lxv 11, 0(23) -; CHECK-NEXT: lxv 10, 0(24) -; CHECK-NEXT: lxv 8, 0(25) -; CHECK-NEXT: lxv 6, 0(26) -; CHECK-NEXT: rldicl 3, 3, 61, 3 -; CHECK-NEXT: li 26, 0 -; CHECK-NEXT: mr 25, 21 -; CHECK-NEXT: addi 31, 5, 32 -; CHECK-NEXT: mulli 5, 0, 40 -; CHECK-NEXT: lxv 5, 0(27) -; CHECK-NEXT: lxv 3, 0(28) -; CHECK-NEXT: lxv 1, 0(29) -; CHECK-NEXT: lxv 0, 0(12) -; CHECK-NEXT: mulli 28, 0, 6 -; CHECK-NEXT: addi 3, 3, 1 -; CHECK-NEXT: li 27, 1 -; CHECK-NEXT: add 18, 21, 5 -; CHECK-NEXT: sldi 5, 0, 5 -; CHECK-NEXT: lxv 2, 0(2) -; CHECK-NEXT: lxv 4, 0(30) -; CHECK-NEXT: sldi 2, 0, 1 -; CHECK-NEXT: add 19, 21, 5 -; CHECK-NEXT: mulli 5, 0, 24 -; CHECK-NEXT: add 20, 21, 5 -; CHECK-NEXT: ld 5, 192(1) # 8-byte Folded Reload -; CHECK-NEXT: lxv 9, 0(5) -; CHECK-NEXT: ld 5, 200(1) # 8-byte Folded Reload -; CHECK-NEXT: lxv 7, 0(5) +; CHECK-NEXT: ld 5, 752(1) +; CHECK-NEXT: addi 14, 4, 32 +; CHECK-NEXT: sldi 4, 7, 4 +; CHECK-NEXT: add 29, 7, 15 +; CHECK-NEXT: ld 22, 800(1) +; CHECK-NEXT: ld 21, 792(1) +; CHECK-NEXT: ld 20, 784(1) +; CHECK-NEXT: std 22, 160(1) # 8-byte Folded Spill +; CHECK-NEXT: std 20, 144(1) # 8-byte Folded Spill +; CHECK-NEXT: std 21, 152(1) # 8-byte Folded Spill +; CHECK-NEXT: addi 6, 3, -2 +; CHECK-NEXT: add 3, 7, 16 +; CHECK-NEXT: add 4, 4, 23 +; CHECK-NEXT: ld 19, 776(1) +; CHECK-NEXT: ld 18, 768(1) +; CHECK-NEXT: lxv 4, 0(8) +; CHECK-NEXT: lxv 2, 0(11) +; CHECK-NEXT: std 18, 128(1) # 8-byte Folded Spill +; CHECK-NEXT: std 19, 136(1) # 8-byte Folded Spill +; CHECK-NEXT: addi 12, 4, 32 +; CHECK-NEXT: rldicl 2, 6, 61, 3 +; CHECK-NEXT: sldi 6, 3, 3 +; CHECK-NEXT: ld 4, 736(1) +; CHECK-NEXT: ld 31, 720(1) +; CHECK-NEXT: std 11, 56(1) # 8-byte Folded Spill +; CHECK-NEXT: std 31, 64(1) # 8-byte Folded Spill +; CHECK-NEXT: add 11, 23, 6 +; CHECK-NEXT: ld 6, 744(1) +; CHECK-NEXT: ld 8, 712(1) +; CHECK-NEXT: std 5, 96(1) # 8-byte Folded Spill +; CHECK-NEXT: std 17, 104(1) # 8-byte Folded Spill +; CHECK-NEXT: lxv 39, 0(5) +; CHECK-NEXT: sldi 5, 7, 5 +; CHECK-NEXT: lxv 5, 0(30) +; CHECK-NEXT: lxv 7, 0(28) +; CHECK-NEXT: lxv 3, 0(9) +; CHECK-NEXT: addi 2, 2, 1 +; CHECK-NEXT: add 30, 23, 5 +; CHECK-NEXT: sldi 5, 29, 3 +; CHECK-NEXT: add 28, 23, 5 +; CHECK-NEXT: ld 5, 864(1) +; CHECK-NEXT: lxv 43, 0(8) +; CHECK-NEXT: lxv 42, 0(31) +; CHECK-NEXT: lxv 38, 0(17) +; CHECK-NEXT: std 4, 72(1) # 8-byte Folded Spill +; CHECK-NEXT: std 6, 80(1) # 8-byte Folded Spill +; CHECK-NEXT: lxv 41, 0(4) +; CHECK-NEXT: lxv 40, 0(6) +; CHECK-NEXT: lxv 33, 0(18) +; CHECK-NEXT: lxv 32, 0(19) +; CHECK-NEXT: std 5, 88(1) # 8-byte Folded Spill +; CHECK-NEXT: lxv 37, 0(20) +; CHECK-NEXT: lxv 36, 0(21) +; CHECK-NEXT: lxv 13, 0(22) +; CHECK-NEXT: lxv 12, 0(24) +; CHECK-NEXT: lxv 11, 0(25) +; CHECK-NEXT: lxv 9, 0(26) +; CHECK-NEXT: lxv 8, 0(27) +; CHECK-NEXT: lxv 10, 0(5) +; CHECK-NEXT: mulli 27, 7, 48 +; CHECK-NEXT: mulli 26, 7, 6 +; CHECK-NEXT: li 25, 1 +; CHECK-NEXT: li 24, 0 +; CHECK-NEXT: mr 5, 23 ; CHECK-NEXT: .p2align 4 ; CHECK-NEXT: .LBB0_3: # %_loop_2_do_.lr.ph ; CHECK-NEXT: # =>This Loop Header: Depth=1 ; CHECK-NEXT: # Child Loop BB0_4 Depth 2 -; CHECK-NEXT: maddld 5, 28, 26, 2 -; CHECK-NEXT: mr 6, 22 -; CHECK-NEXT: mr 29, 20 -; CHECK-NEXT: mr 30, 19 -; CHECK-NEXT: mr 12, 18 -; CHECK-NEXT: mtctr 3 -; CHECK-NEXT: sldi 5, 5, 3 -; CHECK-NEXT: add 24, 21, 5 -; CHECK-NEXT: maddld 5, 28, 26, 0 -; CHECK-NEXT: sldi 5, 5, 3 -; CHECK-NEXT: add 23, 21, 5 -; CHECK-NEXT: mr 5, 25 +; CHECK-NEXT: maddld 6, 26, 24, 3 +; CHECK-NEXT: mtctr 2 +; CHECK-NEXT: sldi 6, 6, 3 +; CHECK-NEXT: add 22, 23, 6 +; CHECK-NEXT: maddld 6, 26, 24, 16 +; CHECK-NEXT: sldi 6, 6, 3 +; CHECK-NEXT: add 21, 23, 6 +; CHECK-NEXT: maddld 6, 26, 24, 29 +; CHECK-NEXT: sldi 6, 6, 3 +; CHECK-NEXT: add 20, 23, 6 +; CHECK-NEXT: maddld 6, 26, 24, 15 +; CHECK-NEXT: sldi 6, 6, 3 +; CHECK-NEXT: add 19, 23, 6 +; CHECK-NEXT: maddld 6, 26, 24, 7 +; CHECK-NEXT: sldi 6, 6, 3 +; CHECK-NEXT: add 18, 23, 6 +; CHECK-NEXT: mulld 6, 26, 24 +; CHECK-NEXT: sldi 6, 6, 3 +; CHECK-NEXT: add 17, 23, 6 +; CHECK-NEXT: mr 6, 10 ; CHECK-NEXT: .p2align 5 ; CHECK-NEXT: .LBB0_4: # %_loop_2_do_ ; CHECK-NEXT: # Parent Loop BB0_3 Depth=1 ; CHECK-NEXT: # => This Inner Loop Header: Depth=2 ; CHECK-NEXT: lxvp 34, 0(6) -; CHECK-NEXT: lxvp 44, 0(5) -; CHECK-NEXT: xvmaddadp 43, 45, 35 -; CHECK-NEXT: lxvp 46, 0(23) -; CHECK-NEXT: xvmaddadp 42, 47, 35 -; CHECK-NEXT: lxvp 48, 0(24) -; CHECK-NEXT: lxvp 50, 0(29) -; CHECK-NEXT: lxvp 62, 0(30) -; CHECK-NEXT: lxvp 60, 0(12) +; CHECK-NEXT: lxvp 44, 0(17) +; CHECK-NEXT: xvmaddadp 4, 45, 35 +; CHECK-NEXT: lxvp 46, 0(18) +; CHECK-NEXT: xvmaddadp 3, 47, 35 +; CHECK-NEXT: lxvp 48, 0(19) +; CHECK-NEXT: lxvp 50, 0(20) +; CHECK-NEXT: lxvp 62, 0(21) +; CHECK-NEXT: lxvp 60, 0(22) ; CHECK-NEXT: lxvp 58, 32(6) -; CHECK-NEXT: lxvp 56, 32(5) -; CHECK-NEXT: lxvp 54, 32(23) -; CHECK-NEXT: lxvp 52, 32(24) -; CHECK-NEXT: lxvp 30, 32(29) -; CHECK-NEXT: lxvp 28, 32(30) -; CHECK-NEXT: lxvp 26, 32(12) -; CHECK-NEXT: xvmaddadp 41, 49, 35 -; CHECK-NEXT: xvmaddadp 40, 51, 35 -; CHECK-NEXT: xvmaddadp 39, 63, 35 -; CHECK-NEXT: xvmaddadp 38, 61, 35 -; CHECK-NEXT: xvmaddadp 33, 44, 34 -; CHECK-NEXT: xvmaddadp 32, 46, 34 -; CHECK-NEXT: xvmaddadp 37, 48, 34 -; CHECK-NEXT: xvmaddadp 36, 50, 34 -; CHECK-NEXT: xvmaddadp 13, 62, 34 -; CHECK-NEXT: xvmaddadp 12, 60, 34 -; CHECK-NEXT: xvmaddadp 11, 57, 59 -; CHECK-NEXT: xvmaddadp 10, 55, 59 -; CHECK-NEXT: xvmaddadp 8, 53, 59 -; CHECK-NEXT: xvmaddadp 6, 31, 59 -; CHECK-NEXT: xvmaddadp 5, 29, 59 -; CHECK-NEXT: xvmaddadp 3, 27, 59 -; CHECK-NEXT: xvmaddadp 1, 56, 58 -; CHECK-NEXT: xvmaddadp 0, 54, 58 -; CHECK-NEXT: xvmaddadp 2, 52, 58 -; CHECK-NEXT: xvmaddadp 4, 30, 58 -; CHECK-NEXT: xvmaddadp 9, 28, 58 -; CHECK-NEXT: xvmaddadp 7, 26, 58 +; CHECK-NEXT: lxvp 56, 32(17) +; CHECK-NEXT: lxvp 54, 32(18) +; CHECK-NEXT: lxvp 52, 32(19) +; CHECK-NEXT: lxvp 30, 32(20) +; CHECK-NEXT: lxvp 28, 32(21) +; CHECK-NEXT: lxvp 26, 32(22) +; CHECK-NEXT: xvmaddadp 2, 49, 35 +; CHECK-NEXT: xvmaddadp 1, 51, 35 +; CHECK-NEXT: xvmaddadp 43, 63, 35 +; CHECK-NEXT: xvmaddadp 42, 61, 35 +; CHECK-NEXT: xvmaddadp 0, 44, 34 +; CHECK-NEXT: xvmaddadp 41, 46, 34 +; CHECK-NEXT: xvmaddadp 40, 48, 34 +; CHECK-NEXT: xvmaddadp 39, 50, 34 +; CHECK-NEXT: xvmaddadp 38, 62, 34 +; CHECK-NEXT: xvmaddadp 33, 60, 34 +; CHECK-NEXT: xvmaddadp 32, 57, 59 +; CHECK-NEXT: xvmaddadp 37, 55, 59 +; CHECK-NEXT: xvmaddadp 36, 53, 59 +; CHECK-NEXT: xvmaddadp 13, 31, 59 +; CHECK-NEXT: xvmaddadp 12, 29, 59 +; CHECK-NEXT: xvmaddadp 11, 27, 59 +; CHECK-NEXT: xvmaddadp 9, 56, 58 +; CHECK-NEXT: xvmaddadp 8, 54, 58 +; CHECK-NEXT: xvmaddadp 6, 52, 58 +; CHECK-NEXT: xvmaddadp 5, 30, 58 +; CHECK-NEXT: xvmaddadp 7, 28, 58 +; CHECK-NEXT: xvmaddadp 10, 26, 58 ; CHECK-NEXT: addi 6, 6, 64 -; CHECK-NEXT: addi 5, 5, 64 -; CHECK-NEXT: addi 23, 23, 64 -; CHECK-NEXT: addi 24, 24, 64 -; CHECK-NEXT: addi 29, 29, 64 -; CHECK-NEXT: addi 30, 30, 64 -; CHECK-NEXT: addi 12, 12, 64 +; CHECK-NEXT: addi 17, 17, 64 +; CHECK-NEXT: addi 18, 18, 64 +; CHECK-NEXT: addi 19, 19, 64 +; CHECK-NEXT: addi 20, 20, 64 +; CHECK-NEXT: addi 21, 21, 64 +; CHECK-NEXT: addi 22, 22, 64 ; CHECK-NEXT: bdnz .LBB0_4 ; CHECK-NEXT: # %bb.5: # %_loop_2_endl_ ; CHECK-NEXT: # -; CHECK-NEXT: addi 27, 27, 6 -; CHECK-NEXT: add 25, 25, 11 -; CHECK-NEXT: add 14, 14, 11 -; CHECK-NEXT: add 18, 18, 11 -; CHECK-NEXT: add 31, 31, 11 -; CHECK-NEXT: add 19, 19, 11 -; CHECK-NEXT: add 20, 20, 11 -; CHECK-NEXT: addi 26, 26, 1 -; CHECK-NEXT: cmpld 27, 4 +; CHECK-NEXT: addi 25, 25, 6 +; CHECK-NEXT: add 5, 5, 27 +; CHECK-NEXT: add 14, 14, 27 +; CHECK-NEXT: add 11, 11, 27 +; CHECK-NEXT: add 12, 12, 27 +; CHECK-NEXT: add 30, 30, 27 +; CHECK-NEXT: add 28, 28, 27 +; CHECK-NEXT: addi 24, 24, 1 +; CHECK-NEXT: cmpld 25, 0 ; CHECK-NEXT: ble 0, .LBB0_3 ; CHECK-NEXT: # %bb.6: # %_loop_1_loopHeader_._return_bb_crit_edge.loopexit -; CHECK-NEXT: ld 3, 32(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 43, 0(3) ; CHECK-NEXT: ld 3, 40(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 42, 0(3) +; CHECK-NEXT: stxv 4, 0(3) ; CHECK-NEXT: ld 3, 48(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 41, 0(3) +; CHECK-NEXT: stxv 3, 0(3) ; CHECK-NEXT: ld 3, 56(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 40, 0(10) -; CHECK-NEXT: stxv 39, 0(8) -; CHECK-NEXT: stxv 38, 0(3) +; CHECK-NEXT: stxv 2, 0(3) +; CHECK-NEXT: ld 3, 112(1) # 8-byte Folded Reload +; CHECK-NEXT: stxv 1, 0(3) ; CHECK-NEXT: ld 3, 64(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 33, 0(3) +; CHECK-NEXT: stxv 43, 0(8) +; CHECK-NEXT: stxv 42, 0(3) +; CHECK-NEXT: ld 3, 120(1) # 8-byte Folded Reload +; CHECK-NEXT: stxv 0, 0(3) ; CHECK-NEXT: ld 3, 72(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 32, 0(3) +; CHECK-NEXT: stxv 41, 0(3) ; CHECK-NEXT: ld 3, 80(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 37, 0(3) -; CHECK-NEXT: ld 3, 88(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 36, 0(3) +; CHECK-NEXT: stxv 40, 0(3) ; CHECK-NEXT: ld 3, 96(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 13, 0(3) +; CHECK-NEXT: stxv 39, 0(3) ; CHECK-NEXT: ld 3, 104(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 12, 0(3) -; CHECK-NEXT: ld 3, 112(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 11, 0(3) -; CHECK-NEXT: ld 3, 120(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 10, 0(3) +; CHECK-NEXT: stxv 38, 0(3) ; CHECK-NEXT: ld 3, 128(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 8, 0(3) +; CHECK-NEXT: stxv 33, 0(3) ; CHECK-NEXT: ld 3, 136(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 6, 0(3) +; CHECK-NEXT: stxv 32, 0(3) ; CHECK-NEXT: ld 3, 144(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 5, 0(3) +; CHECK-NEXT: stxv 37, 0(3) ; CHECK-NEXT: ld 3, 152(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 3, 0(3) +; CHECK-NEXT: stxv 36, 0(3) ; CHECK-NEXT: ld 3, 160(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 1, 0(3) +; CHECK-NEXT: stxv 13, 0(3) ; CHECK-NEXT: ld 3, 168(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 0, 0(3) +; CHECK-NEXT: stxv 12, 0(3) ; CHECK-NEXT: ld 3, 176(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 2, 0(3) +; CHECK-NEXT: stxv 11, 0(3) ; CHECK-NEXT: ld 3, 184(1) # 8-byte Folded Reload -; CHECK-NEXT: stxv 4, 0(3) -; CHECK-NEXT: ld 3, 192(1) # 8-byte Folded Reload ; CHECK-NEXT: stxv 9, 0(3) +; CHECK-NEXT: ld 3, 192(1) # 8-byte Folded Reload +; CHECK-NEXT: stxv 8, 0(3) ; CHECK-NEXT: ld 3, 200(1) # 8-byte Folded Reload +; CHECK-NEXT: stxv 6, 0(3) +; CHECK-NEXT: ld 3, 208(1) # 8-byte Folded Reload +; CHECK-NEXT: stxv 5, 0(3) +; CHECK-NEXT: ld 3, 216(1) # 8-byte Folded Reload ; CHECK-NEXT: stxv 7, 0(3) +; CHECK-NEXT: ld 3, 88(1) # 8-byte Folded Reload +; CHECK-NEXT: stxv 10, 0(3) ; CHECK-NEXT: .LBB0_7: # %_return_bb -; CHECK-NEXT: lxv 63, 384(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 62, 368(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 61, 352(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 60, 336(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 59, 320(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 58, 304(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 57, 288(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 56, 272(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 55, 256(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 54, 240(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 53, 224(1) # 16-byte Folded Reload -; CHECK-NEXT: lxv 52, 208(1) # 16-byte Folded Reload -; CHECK-NEXT: lfd 31, 584(1) # 8-byte Folded Reload -; CHECK-NEXT: lfd 30, 576(1) # 8-byte Folded Reload -; CHECK-NEXT: lfd 29, 568(1) # 8-byte Folded Reload -; CHECK-NEXT: lfd 28, 560(1) # 8-byte Folded Reload -; CHECK-NEXT: lfd 27, 552(1) # 8-byte Folded Reload -; CHECK-NEXT: lfd 26, 544(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 31, 536(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 30, 528(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 29, 520(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 28, 512(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 27, 504(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 26, 496(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 25, 488(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 24, 480(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 23, 472(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 22, 464(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 21, 456(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 20, 448(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 19, 440(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 18, 432(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 17, 424(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 16, 416(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 15, 408(1) # 8-byte Folded Reload -; CHECK-NEXT: ld 14, 400(1) # 8-byte Folded Reload -; CHECK-NEXT: addi 1, 1, 592 +; CHECK-NEXT: lxv 63, 400(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 62, 384(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 61, 368(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 60, 352(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 59, 336(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 58, 320(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 57, 304(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 56, 288(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 55, 272(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 54, 256(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 53, 240(1) # 16-byte Folded Reload +; CHECK-NEXT: lxv 52, 224(1) # 16-byte Folded Reload +; CHECK-NEXT: lfd 31, 600(1) # 8-byte Folded Reload +; CHECK-NEXT: lfd 30, 592(1) # 8-byte Folded Reload +; CHECK-NEXT: lfd 29, 584(1) # 8-byte Folded Reload +; CHECK-NEXT: lfd 28, 576(1) # 8-byte Folded Reload +; CHECK-NEXT: lfd 27, 568(1) # 8-byte Folded Reload +; CHECK-NEXT: lfd 26, 560(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 31, 552(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 30, 544(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 29, 536(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 28, 528(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 27, 520(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 26, 512(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 25, 504(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 24, 496(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 23, 488(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 22, 480(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 21, 472(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 20, 464(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 19, 456(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 18, 448(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 17, 440(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 16, 432(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 15, 424(1) # 8-byte Folded Reload +; CHECK-NEXT: ld 14, 416(1) # 8-byte Folded Reload +; CHECK-NEXT: addi 1, 1, 608 ; CHECK-NEXT: blr entry: %_val_l_ = load i32, i32* %.l, align 4 diff --git a/llvm/test/Transforms/LoopStrengthReduce/X86/nested-ptr-addrec.ll b/llvm/test/Transforms/LoopStrengthReduce/X86/nested-ptr-addrec.ll deleted file mode 100644 index fc988f0..0000000 --- a/llvm/test/Transforms/LoopStrengthReduce/X86/nested-ptr-addrec.ll +++ /dev/null @@ -1,61 +0,0 @@ -; NOTE: Assertions have been autogenerated by utils/update_test_checks.py -; RUN: opt -S -loop-reduce < %s | FileCheck %s - -; Test an assertion failure from D113349, where the SCEV for the outer phi -; gets computed and registered in the value map while attempting to compute it. - -target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128" -target triple = "x86_64-unknown-linux-gnu" - -define void @test() { -; CHECK-LABEL: @test( -; CHECK-NEXT: entry: -; CHECK-NEXT: br label [[LOOP_HEADER:%.*]] -; CHECK: loop.header: -; CHECK-NEXT: [[LSR_IV:%.*]] = phi i64* [ [[SCEVGEP:%.*]], [[LOOP_LATCH:%.*]] ], [ inttoptr (i64 -8 to i64*), [[ENTRY:%.*]] ] -; CHECK-NEXT: br i1 true, label [[LOOP_EXIT:%.*]], label [[LOOP2_PREHEADER:%.*]] -; CHECK: loop.exit: -; CHECK-NEXT: ret void -; CHECK: loop2.preheader: -; CHECK-NEXT: br label [[LOOP2_HEADER:%.*]] -; CHECK: loop2.header: -; CHECK-NEXT: [[LSR_IV1:%.*]] = phi i64* [ [[SCEVGEP2:%.*]], [[LOOP2_HEADER]] ], [ [[LSR_IV]], [[LOOP2_PREHEADER]] ] -; CHECK-NEXT: [[SCEVGEP2]] = getelementptr i64, i64* [[LSR_IV1]], i64 1 -; CHECK-NEXT: [[SCEVGEP23:%.*]] = bitcast i64* [[SCEVGEP2]] to i8* -; CHECK-NEXT: br i1 false, label [[LOOP2_HEADER]], label [[LOOP2_CONT:%.*]] -; CHECK: loop2.cont: -; CHECK-NEXT: [[V:%.*]] = load i8, i8* [[SCEVGEP23]], align 1 -; CHECK-NEXT: [[C:%.*]] = icmp ne i8 [[V]], 0 -; CHECK-NEXT: br i1 [[C]], label [[LOOP_EXIT]], label [[LOOP_LATCH]] -; CHECK: loop.latch: -; CHECK-NEXT: [[SCEVGEP]] = getelementptr i64, i64* [[LSR_IV]], i64 1 -; CHECK-NEXT: br label [[LOOP_HEADER]] -; -entry: - br label %loop.header - -loop.header: - %ptr = phi i64* [ %ptr.next, %loop.latch ], [ null, %entry ] - br i1 true, label %loop.exit, label %loop2.preheader - -loop.exit: - ret void - -loop2.preheader: - br label %loop2.header - -loop2.header: - %ptr2 = phi i64* [ %ptr, %loop2.preheader ], [ %ptr2.next, %loop2.header ] - %ptr2.next = getelementptr inbounds i64, i64* %ptr2, i64 1 - br i1 false, label %loop2.header, label %loop2.cont - -loop2.cont: - %ptr2.i8 = bitcast i64* %ptr2 to i8* - %v = load i8, i8* %ptr2.i8 - %c = icmp ne i8 %v, 0 - br i1 %c, label %loop.exit, label %loop.latch - -loop.latch: - %ptr.next = getelementptr inbounds i64, i64* %ptr, i64 1 - br label %loop.header -} -- 2.7.4