[llvm] 4f82731 - [LoopVersioning,LLE] Clear LoopAccessInfoManager after making changes.
Florian Hahn via llvm-commits
llvm-commits at lists.llvm.org
Tue Oct 4 13:36:05 PDT 2022
Author: Florian Hahn
Date: 2022-10-04T21:35:42+01:00
New Revision: 4f827318e3e8ccab4ff131e06234caa827e91e4e
URL: https://github.com/llvm/llvm-project/commit/4f827318e3e8ccab4ff131e06234caa827e91e4e
DIFF: https://github.com/llvm/llvm-project/commit/4f827318e3e8ccab4ff131e06234caa827e91e4e.diff
LOG: [LoopVersioning,LLE] Clear LoopAccessInfoManager after making changes.
Loop versioning changes the control-flow, which may impact SCEVs cached
by for other loops in LoopAccessInfoManager. Clear the manager after
making changes.
Fixes #57825.
Depends on D134609.
Reviewed By: aeubanks
Differential Revision: https://reviews.llvm.org/D134611
Added:
Modified:
llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp
llvm/lib/Transforms/Utils/LoopVersioning.cpp
llvm/test/Transforms/LoopLoadElim/invalidate-laa-after-versioning.ll
llvm/test/Transforms/LoopVersioning/invalidate-laa-after-versioning.ll
Removed:
################################################################################
diff --git a/llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp b/llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp
index bd9958424da83..b615a0a0a9c08 100644
--- a/llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/LoopLoadElimination.cpp
@@ -652,6 +652,8 @@ static bool eliminateLoadsAcrossLoops(Function &F, LoopInfo &LI,
// The actual work is performed by LoadEliminationForLoop.
LoadEliminationForLoop LEL(L, &LI, LAIs.getInfo(*L), &DT, BFI, PSI);
Changed |= LEL.processLoop();
+ if (Changed)
+ LAIs.clear();
}
return Changed;
}
diff --git a/llvm/lib/Transforms/Utils/LoopVersioning.cpp b/llvm/lib/Transforms/Utils/LoopVersioning.cpp
index 212876f7edb39..17e71cf5a6c4c 100644
--- a/llvm/lib/Transforms/Utils/LoopVersioning.cpp
+++ b/llvm/lib/Transforms/Utils/LoopVersioning.cpp
@@ -284,6 +284,7 @@ bool runImpl(LoopInfo *LI, LoopAccessInfoManager &LAIs, DominatorTree *DT,
LVer.versionLoop();
LVer.annotateLoopWithNoAlias();
Changed = true;
+ LAIs.clear();
}
}
diff --git a/llvm/test/Transforms/LoopLoadElim/invalidate-laa-after-versioning.ll b/llvm/test/Transforms/LoopLoadElim/invalidate-laa-after-versioning.ll
index eae759080830b..af13e70123c8d 100644
--- a/llvm/test/Transforms/LoopLoadElim/invalidate-laa-after-versioning.ll
+++ b/llvm/test/Transforms/LoopLoadElim/invalidate-laa-after-versioning.ll
@@ -1,15 +1,113 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes='loop-vectorize,loop-load-elim' -S %s | FileCheck %s
-; REQUIRES: asserts
-; XFAIL: *
-
@glob.1 = external global [100 x double]
@glob.2 = external global [100 x double]
; Test for PR57825 to make sure LAA is properly invalidated after versioning
; loops.
define void @test(ptr %arg, i64 %arg1) {
-; CHECK-LABEL: @test
+; CHECK-LABEL: @test(
+; CHECK-NEXT: bb:
+; CHECK-NEXT: br label [[INNER_1_LVER_CHECK:%.*]]
+; CHECK: inner.1.lver.check:
+; CHECK-NEXT: [[PTR_PHI:%.*]] = phi ptr [ [[ARG:%.*]], [[BB:%.*]] ], [ @glob.1, [[OUTER_LATCH:%.*]] ]
+; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 3
+; CHECK-NEXT: [[IDENT_CHECK:%.*]] = icmp ne i64 [[ARG1:%.*]], 1
+; CHECK-NEXT: br i1 [[IDENT_CHECK]], label [[INNER_1_PH_LVER_ORIG:%.*]], label [[INNER_1_PH:%.*]]
+; CHECK: inner.1.ph.lver.orig:
+; CHECK-NEXT: br label [[INNER_1_LVER_ORIG:%.*]]
+; CHECK: inner.1.lver.orig:
+; CHECK-NEXT: [[IV_1_LVER_ORIG:%.*]] = phi i64 [ 0, [[INNER_1_PH_LVER_ORIG]] ], [ [[IV_NEXT_LVER_ORIG:%.*]], [[INNER_1_LVER_ORIG]] ]
+; CHECK-NEXT: [[PTR_IV_1_LVER_ORIG:%.*]] = phi ptr [ @glob.2, [[INNER_1_PH_LVER_ORIG]] ], [ [[PTR_IV_1_NEXT_LVER_ORIG:%.*]], [[INNER_1_LVER_ORIG]] ]
+; CHECK-NEXT: [[TMP25_LVER_ORIG:%.*]] = mul nuw nsw i64 [[IV_1_LVER_ORIG]], [[ARG1]]
+; CHECK-NEXT: [[GEP_2_LVER_ORIG:%.*]] = getelementptr inbounds double, ptr [[GEP_1]], i64 [[TMP25_LVER_ORIG]]
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_2_LVER_ORIG]], align 8
+; CHECK-NEXT: [[GEP_3_LVER_ORIG:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 [[TMP25_LVER_ORIG]]
+; CHECK-NEXT: [[GEP_4_LVER_ORIG:%.*]] = getelementptr double, ptr [[GEP_3_LVER_ORIG]], i64 2
+; CHECK-NEXT: [[TMP29_LVER_ORIG:%.*]] = load double, ptr [[GEP_4_LVER_ORIG]], align 8
+; CHECK-NEXT: [[PTR_IV_1_NEXT_LVER_ORIG]] = getelementptr inbounds double, ptr [[PTR_IV_1_LVER_ORIG]], i64 1
+; CHECK-NEXT: [[IV_NEXT_LVER_ORIG]] = add nuw nsw i64 [[IV_1_LVER_ORIG]], 1
+; CHECK-NEXT: [[C_1_LVER_ORIG:%.*]] = icmp eq i64 [[IV_1_LVER_ORIG]], 1
+; CHECK-NEXT: br i1 [[C_1_LVER_ORIG]], label [[INNER_1_EXIT_LOOPEXIT:%.*]], label [[INNER_1_LVER_ORIG]]
+; CHECK: inner.1.ph:
+; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr [[PTR_PHI]], i64 16
+; CHECK-NEXT: [[LOAD_INITIAL:%.*]] = load double, ptr [[UGLYGEP]], align 8
+; CHECK-NEXT: br label [[INNER_1:%.*]]
+; CHECK: inner.1:
+; CHECK-NEXT: [[STORE_FORWARDED:%.*]] = phi double [ [[LOAD_INITIAL]], [[INNER_1_PH]] ], [ 0.000000e+00, [[INNER_1]] ]
+; CHECK-NEXT: [[IV_1:%.*]] = phi i64 [ 0, [[INNER_1_PH]] ], [ [[IV_NEXT:%.*]], [[INNER_1]] ]
+; CHECK-NEXT: [[PTR_IV_1:%.*]] = phi ptr [ @glob.2, [[INNER_1_PH]] ], [ [[PTR_IV_1_NEXT:%.*]], [[INNER_1]] ]
+; CHECK-NEXT: [[TMP25:%.*]] = mul nuw nsw i64 [[IV_1]], [[ARG1]]
+; CHECK-NEXT: [[GEP_2:%.*]] = getelementptr inbounds double, ptr [[GEP_1]], i64 [[TMP25]]
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_2]], align 8
+; CHECK-NEXT: [[GEP_3:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 [[TMP25]]
+; CHECK-NEXT: [[GEP_4:%.*]] = getelementptr double, ptr [[GEP_3]], i64 2
+; CHECK-NEXT: [[TMP29:%.*]] = load double, ptr [[GEP_4]], align 8
+; CHECK-NEXT: [[PTR_IV_1_NEXT]] = getelementptr inbounds double, ptr [[PTR_IV_1]], i64 1
+; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV_1]], 1
+; CHECK-NEXT: [[C_1:%.*]] = icmp eq i64 [[IV_1]], 1
+; CHECK-NEXT: br i1 [[C_1]], label [[INNER_1_EXIT_LOOPEXIT1:%.*]], label [[INNER_1]]
+; CHECK: inner.1.exit.loopexit:
+; CHECK-NEXT: [[LCSSA_PTR_IV_1_PH:%.*]] = phi ptr [ [[PTR_IV_1_LVER_ORIG]], [[INNER_1_LVER_ORIG]] ]
+; CHECK-NEXT: br label [[INNER_1_EXIT:%.*]]
+; CHECK: inner.1.exit.loopexit1:
+; CHECK-NEXT: [[LCSSA_PTR_IV_1_PH2:%.*]] = phi ptr [ [[PTR_IV_1]], [[INNER_1]] ]
+; CHECK-NEXT: br label [[INNER_1_EXIT]]
+; CHECK: inner.1.exit:
+; CHECK-NEXT: [[LCSSA_PTR_IV_1:%.*]] = phi ptr [ [[LCSSA_PTR_IV_1_PH]], [[INNER_1_EXIT_LOOPEXIT]] ], [ [[LCSSA_PTR_IV_1_PH2]], [[INNER_1_EXIT_LOOPEXIT1]] ]
+; CHECK-NEXT: [[GEP_5:%.*]] = getelementptr inbounds double, ptr [[LCSSA_PTR_IV_1]], i64 1
+; CHECK-NEXT: br label [[INNER_2:%.*]]
+; CHECK: inner.2:
+; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ [[INDVAR_NEXT:%.*]], [[INNER_2]] ], [ 0, [[INNER_1_EXIT]] ]
+; CHECK-NEXT: [[PTR_IV_2:%.*]] = phi ptr [ [[GEP_5]], [[INNER_1_EXIT]] ], [ [[PTR_IV_2_NEXT:%.*]], [[INNER_2]] ]
+; CHECK-NEXT: [[PTR_IV_2_NEXT]] = getelementptr inbounds double, ptr [[PTR_IV_2]], i64 1
+; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1
+; CHECK-NEXT: br i1 false, label [[INNER_3_LVER_CHECK:%.*]], label [[INNER_2]]
+; CHECK: inner.3.lver.check:
+; CHECK-NEXT: [[INDVAR_LCSSA:%.*]] = phi i64 [ [[INDVAR]], [[INNER_2]] ]
+; CHECK-NEXT: [[LCSSA_PTR_IV_2:%.*]] = phi ptr [ [[PTR_IV_2]], [[INNER_2]] ]
+; CHECK-NEXT: [[GEP_6:%.*]] = getelementptr inbounds double, ptr [[PTR_PHI]], i64 1
+; CHECK-NEXT: [[GEP_7:%.*]] = getelementptr inbounds double, ptr [[LCSSA_PTR_IV_2]], i64 1
+; CHECK-NEXT: [[TMP0:%.*]] = shl i64 [[INDVAR_LCSSA]], 3
+; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[TMP0]], 24
+; CHECK-NEXT: [[UGLYGEP3:%.*]] = getelementptr i8, ptr [[LCSSA_PTR_IV_1]], i64 [[TMP1]]
+; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[GEP_7]], [[GEP_1]]
+; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[PTR_PHI]], [[UGLYGEP3]]
+; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
+; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[INNER_3_PH_LVER_ORIG:%.*]], label [[INNER_3_PH:%.*]]
+; CHECK: inner.3.ph.lver.orig:
+; CHECK-NEXT: br label [[INNER_3_LVER_ORIG:%.*]]
+; CHECK: inner.3.lver.orig:
+; CHECK-NEXT: [[IV_2_LVER_ORIG:%.*]] = phi i64 [ 0, [[INNER_3_PH_LVER_ORIG]] ], [ [[IV_2_NEXT_LVER_ORIG:%.*]], [[INNER_3_LVER_ORIG]] ]
+; CHECK-NEXT: [[GEP_8_LVER_ORIG:%.*]] = getelementptr inbounds double, ptr [[GEP_6]], i64 [[IV_2_LVER_ORIG]]
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_7]], align 8
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_8_LVER_ORIG]], align 8
+; CHECK-NEXT: [[GEP_9_LVER_ORIG:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 [[IV_2_LVER_ORIG]]
+; CHECK-NEXT: [[TMP18_LVER_ORIG:%.*]] = load double, ptr [[GEP_9_LVER_ORIG]], align 8
+; CHECK-NEXT: [[IV_2_NEXT_LVER_ORIG]] = add nuw nsw i64 [[IV_2_LVER_ORIG]], 1
+; CHECK-NEXT: [[C_2_LVER_ORIG:%.*]] = icmp eq i64 [[IV_2_LVER_ORIG]], 1
+; CHECK-NEXT: br i1 [[C_2_LVER_ORIG]], label [[OUTER_LATCH_LOOPEXIT:%.*]], label [[INNER_3_LVER_ORIG]]
+; CHECK: inner.3.ph:
+; CHECK-NEXT: [[LOAD_INITIAL5:%.*]] = load double, ptr [[PTR_PHI]], align 8
+; CHECK-NEXT: br label [[INNER_3:%.*]]
+; CHECK: inner.3:
+; CHECK-NEXT: [[STORE_FORWARDED6:%.*]] = phi double [ [[LOAD_INITIAL5]], [[INNER_3_PH]] ], [ 0.000000e+00, [[INNER_3]] ]
+; CHECK-NEXT: [[IV_2:%.*]] = phi i64 [ 0, [[INNER_3_PH]] ], [ [[IV_2_NEXT:%.*]], [[INNER_3]] ]
+; CHECK-NEXT: [[GEP_8:%.*]] = getelementptr inbounds double, ptr [[GEP_6]], i64 [[IV_2]]
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_7]], align 8
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_8]], align 8
+; CHECK-NEXT: [[GEP_9:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 [[IV_2]]
+; CHECK-NEXT: [[TMP18:%.*]] = load double, ptr [[GEP_9]], align 8
+; CHECK-NEXT: [[IV_2_NEXT]] = add nuw nsw i64 [[IV_2]], 1
+; CHECK-NEXT: [[C_2:%.*]] = icmp eq i64 [[IV_2]], 1
+; CHECK-NEXT: br i1 [[C_2]], label [[OUTER_LATCH_LOOPEXIT4:%.*]], label [[INNER_3]]
+; CHECK: outer.latch.loopexit:
+; CHECK-NEXT: br label [[OUTER_LATCH]]
+; CHECK: outer.latch.loopexit4:
+; CHECK-NEXT: br label [[OUTER_LATCH]]
+; CHECK: outer.latch:
+; CHECK-NEXT: br label [[INNER_1_LVER_CHECK]]
;
bb:
br label %outer.header
diff --git a/llvm/test/Transforms/LoopVersioning/invalidate-laa-after-versioning.ll b/llvm/test/Transforms/LoopVersioning/invalidate-laa-after-versioning.ll
index 7843d0ac28153..c52a53426e16c 100644
--- a/llvm/test/Transforms/LoopVersioning/invalidate-laa-after-versioning.ll
+++ b/llvm/test/Transforms/LoopVersioning/invalidate-laa-after-versioning.ll
@@ -1,15 +1,108 @@
+; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
; RUN: opt -passes='loop-vectorize,loop-versioning' -S %s | FileCheck %s
-; REQUIRES: asserts
-; XFAIL: *
-
@glob.1 = external global [100 x double]
@glob.2 = external global [100 x double]
; Test for PR57825 to make sure LAA is properly invalidated after versioning
; loops.
define void @test(ptr %arg, i64 %arg1) {
-; CHECK-LABEL: @test
+; CHECK-LABEL: @test(
+; CHECK-NEXT: bb:
+; CHECK-NEXT: br label [[INNER_1_LVER_CHECK:%.*]]
+; CHECK: inner.1.lver.check:
+; CHECK-NEXT: [[PTR_PHI:%.*]] = phi ptr [ [[ARG:%.*]], [[BB:%.*]] ], [ @glob.1, [[OUTER_LATCH:%.*]] ]
+; CHECK-NEXT: [[GEP_1:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 3
+; CHECK-NEXT: [[IDENT_CHECK:%.*]] = icmp ne i64 [[ARG1:%.*]], 1
+; CHECK-NEXT: br i1 [[IDENT_CHECK]], label [[INNER_1_PH_LVER_ORIG:%.*]], label [[INNER_1_PH:%.*]]
+; CHECK: inner.1.ph.lver.orig:
+; CHECK-NEXT: br label [[INNER_1_LVER_ORIG:%.*]]
+; CHECK: inner.1.lver.orig:
+; CHECK-NEXT: [[IV_1_LVER_ORIG:%.*]] = phi i64 [ 0, [[INNER_1_PH_LVER_ORIG]] ], [ [[IV_NEXT_LVER_ORIG:%.*]], [[INNER_1_LVER_ORIG]] ]
+; CHECK-NEXT: [[PTR_IV_1_LVER_ORIG:%.*]] = phi ptr [ @glob.2, [[INNER_1_PH_LVER_ORIG]] ], [ [[PTR_IV_1_NEXT_LVER_ORIG:%.*]], [[INNER_1_LVER_ORIG]] ]
+; CHECK-NEXT: [[TMP25_LVER_ORIG:%.*]] = mul nuw nsw i64 [[IV_1_LVER_ORIG]], [[ARG1]]
+; CHECK-NEXT: [[GEP_2_LVER_ORIG:%.*]] = getelementptr inbounds double, ptr [[GEP_1]], i64 [[TMP25_LVER_ORIG]]
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_2_LVER_ORIG]], align 8
+; CHECK-NEXT: [[GEP_3_LVER_ORIG:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 [[TMP25_LVER_ORIG]]
+; CHECK-NEXT: [[GEP_4_LVER_ORIG:%.*]] = getelementptr double, ptr [[GEP_3_LVER_ORIG]], i64 2
+; CHECK-NEXT: [[TMP29_LVER_ORIG:%.*]] = load double, ptr [[GEP_4_LVER_ORIG]], align 8
+; CHECK-NEXT: [[PTR_IV_1_NEXT_LVER_ORIG]] = getelementptr inbounds double, ptr [[PTR_IV_1_LVER_ORIG]], i64 1
+; CHECK-NEXT: [[IV_NEXT_LVER_ORIG]] = add nuw nsw i64 [[IV_1_LVER_ORIG]], 1
+; CHECK-NEXT: [[C_1_LVER_ORIG:%.*]] = icmp eq i64 [[IV_1_LVER_ORIG]], 1
+; CHECK-NEXT: br i1 [[C_1_LVER_ORIG]], label [[INNER_1_EXIT_LOOPEXIT:%.*]], label [[INNER_1_LVER_ORIG]]
+; CHECK: inner.1.ph:
+; CHECK-NEXT: br label [[INNER_1:%.*]]
+; CHECK: inner.1:
+; CHECK-NEXT: [[IV_1:%.*]] = phi i64 [ 0, [[INNER_1_PH]] ], [ [[IV_NEXT:%.*]], [[INNER_1]] ]
+; CHECK-NEXT: [[PTR_IV_1:%.*]] = phi ptr [ @glob.2, [[INNER_1_PH]] ], [ [[PTR_IV_1_NEXT:%.*]], [[INNER_1]] ]
+; CHECK-NEXT: [[TMP25:%.*]] = mul nuw nsw i64 [[IV_1]], [[ARG1]]
+; CHECK-NEXT: [[GEP_2:%.*]] = getelementptr inbounds double, ptr [[GEP_1]], i64 [[TMP25]]
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_2]], align 8
+; CHECK-NEXT: [[GEP_3:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 [[TMP25]]
+; CHECK-NEXT: [[GEP_4:%.*]] = getelementptr double, ptr [[GEP_3]], i64 2
+; CHECK-NEXT: [[TMP29:%.*]] = load double, ptr [[GEP_4]], align 8
+; CHECK-NEXT: [[PTR_IV_1_NEXT]] = getelementptr inbounds double, ptr [[PTR_IV_1]], i64 1
+; CHECK-NEXT: [[IV_NEXT]] = add nuw nsw i64 [[IV_1]], 1
+; CHECK-NEXT: [[C_1:%.*]] = icmp eq i64 [[IV_1]], 1
+; CHECK-NEXT: br i1 [[C_1]], label [[INNER_1_EXIT_LOOPEXIT1:%.*]], label [[INNER_1]]
+; CHECK: inner.1.exit.loopexit:
+; CHECK-NEXT: [[LCSSA_PTR_IV_1_PH:%.*]] = phi ptr [ [[PTR_IV_1_LVER_ORIG]], [[INNER_1_LVER_ORIG]] ]
+; CHECK-NEXT: br label [[INNER_1_EXIT:%.*]]
+; CHECK: inner.1.exit.loopexit1:
+; CHECK-NEXT: [[LCSSA_PTR_IV_1_PH2:%.*]] = phi ptr [ [[PTR_IV_1]], [[INNER_1]] ]
+; CHECK-NEXT: br label [[INNER_1_EXIT]]
+; CHECK: inner.1.exit:
+; CHECK-NEXT: [[LCSSA_PTR_IV_1:%.*]] = phi ptr [ [[LCSSA_PTR_IV_1_PH]], [[INNER_1_EXIT_LOOPEXIT]] ], [ [[LCSSA_PTR_IV_1_PH2]], [[INNER_1_EXIT_LOOPEXIT1]] ]
+; CHECK-NEXT: [[GEP_5:%.*]] = getelementptr inbounds double, ptr [[LCSSA_PTR_IV_1]], i64 1
+; CHECK-NEXT: br label [[INNER_2:%.*]]
+; CHECK: inner.2:
+; CHECK-NEXT: [[INDVAR:%.*]] = phi i64 [ [[INDVAR_NEXT:%.*]], [[INNER_2]] ], [ 0, [[INNER_1_EXIT]] ]
+; CHECK-NEXT: [[PTR_IV_2:%.*]] = phi ptr [ [[GEP_5]], [[INNER_1_EXIT]] ], [ [[PTR_IV_2_NEXT:%.*]], [[INNER_2]] ]
+; CHECK-NEXT: [[PTR_IV_2_NEXT]] = getelementptr inbounds double, ptr [[PTR_IV_2]], i64 1
+; CHECK-NEXT: [[INDVAR_NEXT]] = add i64 [[INDVAR]], 1
+; CHECK-NEXT: br i1 false, label [[INNER_3_LVER_CHECK:%.*]], label [[INNER_2]]
+; CHECK: inner.3.lver.check:
+; CHECK-NEXT: [[INDVAR_LCSSA:%.*]] = phi i64 [ [[INDVAR]], [[INNER_2]] ]
+; CHECK-NEXT: [[LCSSA_PTR_IV_2:%.*]] = phi ptr [ [[PTR_IV_2]], [[INNER_2]] ]
+; CHECK-NEXT: [[GEP_6:%.*]] = getelementptr inbounds double, ptr [[PTR_PHI]], i64 1
+; CHECK-NEXT: [[GEP_7:%.*]] = getelementptr inbounds double, ptr [[LCSSA_PTR_IV_2]], i64 1
+; CHECK-NEXT: [[TMP0:%.*]] = shl i64 [[INDVAR_LCSSA]], 3
+; CHECK-NEXT: [[TMP1:%.*]] = add i64 [[TMP0]], 24
+; CHECK-NEXT: [[UGLYGEP:%.*]] = getelementptr i8, ptr [[LCSSA_PTR_IV_1]], i64 [[TMP1]]
+; CHECK-NEXT: [[BOUND0:%.*]] = icmp ult ptr [[GEP_7]], [[GEP_1]]
+; CHECK-NEXT: [[BOUND1:%.*]] = icmp ult ptr [[PTR_PHI]], [[UGLYGEP]]
+; CHECK-NEXT: [[FOUND_CONFLICT:%.*]] = and i1 [[BOUND0]], [[BOUND1]]
+; CHECK-NEXT: br i1 [[FOUND_CONFLICT]], label [[INNER_3_PH_LVER_ORIG:%.*]], label [[INNER_3_PH:%.*]]
+; CHECK: inner.3.ph.lver.orig:
+; CHECK-NEXT: br label [[INNER_3_LVER_ORIG:%.*]]
+; CHECK: inner.3.lver.orig:
+; CHECK-NEXT: [[IV_2_LVER_ORIG:%.*]] = phi i64 [ 0, [[INNER_3_PH_LVER_ORIG]] ], [ [[IV_2_NEXT_LVER_ORIG:%.*]], [[INNER_3_LVER_ORIG]] ]
+; CHECK-NEXT: [[GEP_8_LVER_ORIG:%.*]] = getelementptr inbounds double, ptr [[GEP_6]], i64 [[IV_2_LVER_ORIG]]
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_7]], align 8
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_8_LVER_ORIG]], align 8
+; CHECK-NEXT: [[GEP_9_LVER_ORIG:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 [[IV_2_LVER_ORIG]]
+; CHECK-NEXT: [[TMP18_LVER_ORIG:%.*]] = load double, ptr [[GEP_9_LVER_ORIG]], align 8
+; CHECK-NEXT: [[IV_2_NEXT_LVER_ORIG]] = add nuw nsw i64 [[IV_2_LVER_ORIG]], 1
+; CHECK-NEXT: [[C_2_LVER_ORIG:%.*]] = icmp eq i64 [[IV_2_LVER_ORIG]], 1
+; CHECK-NEXT: br i1 [[C_2_LVER_ORIG]], label [[OUTER_LATCH_LOOPEXIT:%.*]], label [[INNER_3_LVER_ORIG]]
+; CHECK: inner.3.ph:
+; CHECK-NEXT: br label [[INNER_3:%.*]]
+; CHECK: inner.3:
+; CHECK-NEXT: [[IV_2:%.*]] = phi i64 [ 0, [[INNER_3_PH]] ], [ [[IV_2_NEXT:%.*]], [[INNER_3]] ]
+; CHECK-NEXT: [[GEP_8:%.*]] = getelementptr inbounds double, ptr [[GEP_6]], i64 [[IV_2]]
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_7]], align 8, !alias.scope !0, !noalias !3
+; CHECK-NEXT: store double 0.000000e+00, ptr [[GEP_8]], align 8, !alias.scope !3
+; CHECK-NEXT: [[GEP_9:%.*]] = getelementptr double, ptr [[PTR_PHI]], i64 [[IV_2]]
+; CHECK-NEXT: [[TMP18:%.*]] = load double, ptr [[GEP_9]], align 8, !alias.scope !3
+; CHECK-NEXT: [[IV_2_NEXT]] = add nuw nsw i64 [[IV_2]], 1
+; CHECK-NEXT: [[C_2:%.*]] = icmp eq i64 [[IV_2]], 1
+; CHECK-NEXT: br i1 [[C_2]], label [[OUTER_LATCH_LOOPEXIT3:%.*]], label [[INNER_3]]
+; CHECK: outer.latch.loopexit:
+; CHECK-NEXT: br label [[OUTER_LATCH]]
+; CHECK: outer.latch.loopexit3:
+; CHECK-NEXT: br label [[OUTER_LATCH]]
+; CHECK: outer.latch:
+; CHECK-NEXT: br label [[INNER_1_LVER_CHECK]]
;
bb:
br label %outer.header
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