[llvm] r370957 - [MemorySSA] Re-enable MemorySSA use.
Mikael Holmén via llvm-commits
llvm-commits at lists.llvm.org
Wed Sep 11 02:41:38 PDT 2019
Hi,
Another crash with memoryssa turned on. I think this one is unrelated
to the other crashes I've seen since there are no debug intrinsics
around this time.
opt -S -o - f4.ll -loop-unswitch -disable-basicaa
gives
opt: ../lib/Analysis/MemorySSA.cpp:1976: void
llvm::MemorySSA::verifyOrdering(llvm::Function &) const: Assertion
`(!MA || (AL && (isa<MemoryUse>(MA) || DL))) && "We have memory
affecting instructions " "in this block but they are not in the "
"access list or defs list"' failed.
Regards,
Mikael
On Wed, 2019-09-04 at 19:16 +0000, Alina Sbirlea via llvm-commits
wrote:
> Author: asbirlea
> Date: Wed Sep 4 12:16:04 2019
> New Revision: 370957
>
> URL:
> https://protect2.fireeye.com/url?k=118d60b4-4d07aa6a-118d202f-86823e270a62-c84f23bab7bb3f2b&q=1&u=http%3A%2F%2Fllvm.org%2Fviewvc%2Fllvm-project%3Frev%3D370957%26view%3Drev
> Log:
> [MemorySSA] Re-enable MemorySSA use.
>
> Differential Revision:
> https://protect2.fireeye.com/url?k=61626bbe-3de8a160-61622b25-86823e270a62-8eda56b83091d815&q=1&u=https%3A%2F%2Freviews.llvm.org%2FD58311
>
> Modified:
> llvm/trunk/lib/Analysis/MemorySSA.cpp
> llvm/trunk/lib/Transforms/Utils/LoopUtils.cpp
> llvm/trunk/test/CodeGen/PowerPC/sms-grp-order.ll
> llvm/trunk/test/Other/opt-O2-pipeline.ll
> llvm/trunk/test/Other/opt-O3-pipeline.ll
> llvm/trunk/test/Other/opt-Os-pipeline.ll
>
> Modified: llvm/trunk/lib/Analysis/MemorySSA.cpp
> URL:
> https://protect2.fireeye.com/url?k=4d59b454-11d37e8a-4d59f4cf-86823e270a62-7a9a9b9527ff7f99&q=1&u=http%3A%2F%2Fllvm.org%2Fviewvc%2Fllvm-project%2Fllvm%2Ftrunk%2Flib%2FAnalysis%2FMemorySSA.cpp%3Frev%3D370957%26r1%3D370956%26r2%3D370957%26view%3Ddiff
> =====================================================================
> =========
> --- llvm/trunk/lib/Analysis/MemorySSA.cpp (original)
> +++ llvm/trunk/lib/Analysis/MemorySSA.cpp Wed Sep 4 12:16:04 2019
> @@ -84,7 +84,7 @@ bool llvm::VerifyMemorySSA = false;
> #endif
> /// Enables memory ssa as a dependency for loop passes in legacy
> pass manager.
> cl::opt<bool> llvm::EnableMSSALoopDependency(
> - "enable-mssa-loop-dependency", cl::Hidden, cl::init(false),
> + "enable-mssa-loop-dependency", cl::Hidden, cl::init(true),
> cl::desc("Enable MemorySSA dependency for loop pass manager"));
>
> static cl::opt<bool, true>
>
> Modified: llvm/trunk/lib/Transforms/Utils/LoopUtils.cpp
> URL:
> https://protect2.fireeye.com/url?k=82f40532-de7ecfec-82f445a9-86823e270a62-31d7364f85f60f93&q=1&u=http%3A%2F%2Fllvm.org%2Fviewvc%2Fllvm-project%2Fllvm%2Ftrunk%2Flib%2FTransforms%2FUtils%2FLoopUtils.cpp%3Frev%3D370957%26r1%3D370956%26r2%3D370957%26view%3Ddiff
> =====================================================================
> =========
> --- llvm/trunk/lib/Transforms/Utils/LoopUtils.cpp (original)
> +++ llvm/trunk/lib/Transforms/Utils/LoopUtils.cpp Wed Sep 4 12:16:04
> 2019
> @@ -19,6 +19,7 @@
> #include "llvm/Analysis/InstructionSimplify.h"
> #include "llvm/Analysis/LoopInfo.h"
> #include "llvm/Analysis/LoopPass.h"
> +#include "llvm/Analysis/MemorySSA.h"
> #include "llvm/Analysis/MemorySSAUpdater.h"
> #include "llvm/Analysis/MustExecute.h"
> #include "llvm/Analysis/ScalarEvolution.h"
> @@ -170,6 +171,8 @@ void llvm::getLoopAnalysisUsage(Analysis
> AU.addPreserved<SCEVAAWrapperPass>();
> AU.addRequired<ScalarEvolutionWrapperPass>();
> AU.addPreserved<ScalarEvolutionWrapperPass>();
> + // FIXME: When all loop passes preserve MemorySSA, it can be
> required and
> + // preserved here instead of the individual handling in each pass.
> }
>
> /// Manually defined generic "LoopPass" dependency initialization.
> This is used
> @@ -190,6 +193,7 @@ void llvm::initializeLoopPassPass(PassRe
> INITIALIZE_PASS_DEPENDENCY(GlobalsAAWrapperPass)
> INITIALIZE_PASS_DEPENDENCY(SCEVAAWrapperPass)
> INITIALIZE_PASS_DEPENDENCY(ScalarEvolutionWrapperPass)
> + INITIALIZE_PASS_DEPENDENCY(MemorySSAWrapperPass)
> }
>
> /// Create MDNode for input string.
>
> Modified: llvm/trunk/test/CodeGen/PowerPC/sms-grp-order.ll
> URL:
> https://protect2.fireeye.com/url?k=0057ee6d-5cdd24b3-0057aef6-86823e270a62-8405017b45a891b5&q=1&u=http%3A%2F%2Fllvm.org%2Fviewvc%2Fllvm-project%2Fllvm%2Ftrunk%2Ftest%2FCodeGen%2FPowerPC%2Fsms-grp-order.ll%3Frev%3D370957%26r1%3D370956%26r2%3D370957%26view%3Ddiff
> =====================================================================
> =========
> --- llvm/trunk/test/CodeGen/PowerPC/sms-grp-order.ll (original)
> +++ llvm/trunk/test/CodeGen/PowerPC/sms-grp-order.ll Wed Sep 4
> 12:16:04 2019
> @@ -4,25 +4,24 @@
>
> define void @lame_encode_buffer_interleaved() local_unnamed_addr {
> ; CHECK-LABEL: lame_encode_buffer_interleaved:
> -; CHECK: # %bb.0:
> -; CHECK-NEXT: lhz 3, 0(0)
> -; CHECK-NEXT: li 5, 1
> -; CHECK-NEXT: sldi 5, 5, 62
> -; CHECK-NEXT: lhz 4, 0(3)
> -; CHECK-NEXT: mtctr 5
> -; CHECK-NEXT: .p2align 5
> -; CHECK-NEXT: .LBB0_1: #
> -; CHECK-NEXT: extsh 3, 3
> -; CHECK-NEXT: extsh 4, 4
> -; CHECK-NEXT: srawi 3, 3, 1
> -; CHECK-NEXT: addze 3, 3
> -; CHECK-NEXT: srawi 4, 4, 1
> -; CHECK-NEXT: addze 4, 4
> -; CHECK-NEXT: bdnz .LBB0_1
> -; CHECK-NEXT: # %bb.2:
> -; CHECK-NEXT: sth 3, 0(0)
> -; CHECK-NEXT: sth 4, 0(3)
> -; CHECK-NEXT: blr
> +; CHECK: # %bb.0:
> +; CHECK-NEXT: lha 3, 0(3)
> +; CHECK-NEXT: li 5, 1
> +; CHECK-NEXT: sldi 5, 5, 62
> +; CHECK-NEXT: lhz 4, 0(0)
> +; CHECK-NEXT: mtctr 5
> +; CHECK-NEXT: srawi 3, 3, 1
> +; CHECK-NEXT: addze 3, 3
> +; CHECK-NEXT: .p2align 4
> +; CHECK-NEXT: .LBB0_1:
> +; CHECK-NEXT: extsh 4, 4
> +; CHECK-NEXT: srawi 4, 4, 1
> +; CHECK-NEXT: addze 4, 4
> +; CHECK-NEXT: bdnz .LBB0_1
> +; CHECK-NEXT: # %bb.2:
> +; CHECK-NEXT: sth 4, 0(0)
> +; CHECK-NEXT: sth 3, 0(3)
> +; CHECK-NEXT: blr
> br label %1
>
> 1: ; preds = %1, %0
>
> Modified: llvm/trunk/test/Other/opt-O2-pipeline.ll
> URL:
> https://protect2.fireeye.com/url?k=9b0187ad-c78b4d73-9b01c736-86823e270a62-3cdb18bf2d8c50f7&q=1&u=http%3A%2F%2Fllvm.org%2Fviewvc%2Fllvm-project%2Fllvm%2Ftrunk%2Ftest%2FOther%2Fopt-O2-pipeline.ll%3Frev%3D370957%26r1%3D370956%26r2%3D370957%26view%3Ddiff
> =====================================================================
> =========
> --- llvm/trunk/test/Other/opt-O2-pipeline.ll (original)
> +++ llvm/trunk/test/Other/opt-O2-pipeline.ll Wed Sep 4 12:16:04 2019
> @@ -93,12 +93,13 @@
> ; CHECK-NEXT: Simplify the CFG
> ; CHECK-NEXT: Reassociate expressions
> ; CHECK-NEXT: Dominator Tree Construction
> +; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> +; CHECK-NEXT: Function Alias Analysis Results
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Natural Loop Information
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
> -; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> -; CHECK-NEXT: Function Alias Analysis Results
> ; CHECK-NEXT: Scalar Evolution Analysis
> ; CHECK-NEXT: Loop Pass Manager
> ; CHECK-NEXT: Rotate Loops
> @@ -153,12 +154,13 @@
> ; CHECK-NEXT: Phi Values Analysis
> ; CHECK-NEXT: Memory Dependence Analysis
> ; CHECK-NEXT: Dead Store Elimination
> +; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> +; CHECK-NEXT: Function Alias Analysis Results
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Natural Loop Information
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
> -; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> -; CHECK-NEXT: Function Alias Analysis Results
> ; CHECK-NEXT: Scalar Evolution Analysis
> ; CHECK-NEXT: Loop Pass Manager
> ; CHECK-NEXT: Loop Invariant Code Motion
> @@ -185,12 +187,13 @@
> ; CHECK-NEXT: FunctionPass Manager
> ; CHECK-NEXT: Float to int
> ; CHECK-NEXT: Dominator Tree Construction
> +; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> +; CHECK-NEXT: Function Alias Analysis Results
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Natural Loop Information
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
> -; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> -; CHECK-NEXT: Function Alias Analysis Results
> ; CHECK-NEXT: Scalar Evolution Analysis
> ; CHECK-NEXT: Loop Pass Manager
> ; CHECK-NEXT: Rotate Loops
> @@ -246,6 +249,7 @@
> ; CHECK-NEXT: Lazy Block Frequency Analysis
> ; CHECK-NEXT: Optimization Remark Emitter
> ; CHECK-NEXT: Combine redundant instructions
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
>
> Modified: llvm/trunk/test/Other/opt-O3-pipeline.ll
> URL:
> https://protect2.fireeye.com/url?k=394f545b-65c59e85-394f14c0-86823e270a62-0bf04c74db73c9df&q=1&u=http%3A%2F%2Fllvm.org%2Fviewvc%2Fllvm-project%2Fllvm%2Ftrunk%2Ftest%2FOther%2Fopt-O3-pipeline.ll%3Frev%3D370957%26r1%3D370956%26r2%3D370957%26view%3Ddiff
> =====================================================================
> =========
> --- llvm/trunk/test/Other/opt-O3-pipeline.ll (original)
> +++ llvm/trunk/test/Other/opt-O3-pipeline.ll Wed Sep 4 12:16:04 2019
> @@ -98,12 +98,13 @@
> ; CHECK-NEXT: Simplify the CFG
> ; CHECK-NEXT: Reassociate expressions
> ; CHECK-NEXT: Dominator Tree Construction
> +; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> +; CHECK-NEXT: Function Alias Analysis Results
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Natural Loop Information
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
> -; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> -; CHECK-NEXT: Function Alias Analysis Results
> ; CHECK-NEXT: Scalar Evolution Analysis
> ; CHECK-NEXT: Loop Pass Manager
> ; CHECK-NEXT: Rotate Loops
> @@ -158,12 +159,13 @@
> ; CHECK-NEXT: Phi Values Analysis
> ; CHECK-NEXT: Memory Dependence Analysis
> ; CHECK-NEXT: Dead Store Elimination
> +; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> +; CHECK-NEXT: Function Alias Analysis Results
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Natural Loop Information
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
> -; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> -; CHECK-NEXT: Function Alias Analysis Results
> ; CHECK-NEXT: Scalar Evolution Analysis
> ; CHECK-NEXT: Loop Pass Manager
> ; CHECK-NEXT: Loop Invariant Code Motion
> @@ -190,12 +192,13 @@
> ; CHECK-NEXT: FunctionPass Manager
> ; CHECK-NEXT: Float to int
> ; CHECK-NEXT: Dominator Tree Construction
> +; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> +; CHECK-NEXT: Function Alias Analysis Results
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Natural Loop Information
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
> -; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> -; CHECK-NEXT: Function Alias Analysis Results
> ; CHECK-NEXT: Scalar Evolution Analysis
> ; CHECK-NEXT: Loop Pass Manager
> ; CHECK-NEXT: Rotate Loops
> @@ -251,6 +254,7 @@
> ; CHECK-NEXT: Lazy Block Frequency Analysis
> ; CHECK-NEXT: Optimization Remark Emitter
> ; CHECK-NEXT: Combine redundant instructions
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
>
> Modified: llvm/trunk/test/Other/opt-Os-pipeline.ll
> URL:
> https://protect2.fireeye.com/url?k=01c3e0a1-5d492a7f-01c3a03a-86823e270a62-da433cbe7321f7ab&q=1&u=http%3A%2F%2Fllvm.org%2Fviewvc%2Fllvm-project%2Fllvm%2Ftrunk%2Ftest%2FOther%2Fopt-Os-pipeline.ll%3Frev%3D370957%26r1%3D370956%26r2%3D370957%26view%3Ddiff
> =====================================================================
> =========
> --- llvm/trunk/test/Other/opt-Os-pipeline.ll (original)
> +++ llvm/trunk/test/Other/opt-Os-pipeline.ll Wed Sep 4 12:16:04 2019
> @@ -80,12 +80,13 @@
> ; CHECK-NEXT: Simplify the CFG
> ; CHECK-NEXT: Reassociate expressions
> ; CHECK-NEXT: Dominator Tree Construction
> +; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> +; CHECK-NEXT: Function Alias Analysis Results
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Natural Loop Information
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
> -; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> -; CHECK-NEXT: Function Alias Analysis Results
> ; CHECK-NEXT: Scalar Evolution Analysis
> ; CHECK-NEXT: Loop Pass Manager
> ; CHECK-NEXT: Rotate Loops
> @@ -140,12 +141,13 @@
> ; CHECK-NEXT: Phi Values Analysis
> ; CHECK-NEXT: Memory Dependence Analysis
> ; CHECK-NEXT: Dead Store Elimination
> +; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> +; CHECK-NEXT: Function Alias Analysis Results
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Natural Loop Information
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
> -; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> -; CHECK-NEXT: Function Alias Analysis Results
> ; CHECK-NEXT: Scalar Evolution Analysis
> ; CHECK-NEXT: Loop Pass Manager
> ; CHECK-NEXT: Loop Invariant Code Motion
> @@ -172,12 +174,13 @@
> ; CHECK-NEXT: FunctionPass Manager
> ; CHECK-NEXT: Float to int
> ; CHECK-NEXT: Dominator Tree Construction
> +; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> +; CHECK-NEXT: Function Alias Analysis Results
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Natural Loop Information
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
> -; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
> -; CHECK-NEXT: Function Alias Analysis Results
> ; CHECK-NEXT: Scalar Evolution Analysis
> ; CHECK-NEXT: Loop Pass Manager
> ; CHECK-NEXT: Rotate Loops
> @@ -233,6 +236,7 @@
> ; CHECK-NEXT: Lazy Block Frequency Analysis
> ; CHECK-NEXT: Optimization Remark Emitter
> ; CHECK-NEXT: Combine redundant instructions
> +; CHECK-NEXT: Memory SSA
> ; CHECK-NEXT: Canonicalize natural loops
> ; CHECK-NEXT: LCSSA Verifier
> ; CHECK-NEXT: Loop-Closed SSA Form Pass
>
>
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