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llvm-mirror/test/Other/opt-Os-pipeline.ll
Philip Reames 647ddb3ec0 [LPM/BPI] Preserve BPI through trivial loop pass pipeline (e.g. LCSSA, LoopSimplify)
Currently, we do not expose BPI to loop passes at all. In the old pass manager, we appear to have been ignoring the fact that LCSSA and/or LoopSimplify didn't preserve BPI, and making it available to the following loop passes anyways.  In the new one, it's invalidated before running any loop pass if either LCSSA or LoopSimplify actually make changes. If they don't make changes, then BPI is valid and available.  So, we go ahead and teach LCSSA and LoopSimplify how to preserve BPI for consistency between old and new pass managers.

This patch avoids an invalidation between the two requires in the following trivial pass pipeline:
opt -passes="requires<branch-prob>,loop(no-op-loop),requires<branch-prob>"
(when the input file is one which requires either LCSSA or LoopSimplify to canonicalize the loops)

Differential Revision: https://reviews.llvm.org/D60790

llvm-svn: 358901
2019-04-22 17:13:43 +00:00

293 lines
13 KiB
LLVM

; RUN: opt -mtriple=x86_64-- -Os -debug-pass=Structure < %s -o /dev/null 2>&1 | FileCheck %s
; REQUIRES: asserts
; CHECK-LABEL: Pass Arguments:
; CHECK-NEXT: Target Transform Information
; CHECK-NEXT: Type-Based Alias Analysis
; CHECK-NEXT: Scoped NoAlias Alias Analysis
; CHECK-NEXT: Assumption Cache Tracker
; CHECK-NEXT: Target Library Information
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Module Verifier
; CHECK-NEXT: Instrument function entry/exit with calls to e.g. mcount() (pre inlining)
; CHECK-NEXT: Simplify the CFG
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: SROA
; CHECK-NEXT: Early CSE
; CHECK-NEXT: Lower 'expect' Intrinsics
; CHECK-NEXT: Pass Arguments:
; CHECK-NEXT: Target Library Information
; CHECK-NEXT: Target Transform Information
; Target Pass Configuration
; CHECK: Type-Based Alias Analysis
; CHECK-NEXT: Scoped NoAlias Alias Analysis
; CHECK-NEXT: Assumption Cache Tracker
; CHECK-NEXT: Profile summary info
; CHECK-NEXT: ModulePass Manager
; CHECK-NEXT: Force set function attributes
; CHECK-NEXT: Infer set function attributes
; CHECK-NEXT: Interprocedural Sparse Conditional Constant Propagation
; CHECK-NEXT: Unnamed pass: implement Pass::getPassName()
; CHECK-NEXT: Called Value Propagation
; CHECK-NEXT: Global Variable Optimizer
; CHECK-NEXT: Unnamed pass: implement Pass::getPassName()
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Promote Memory to Register
; CHECK-NEXT: Dead Argument Elimination
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Natural Loop Information
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Combine redundant instructions
; CHECK-NEXT: Simplify the CFG
; CHECK-NEXT: CallGraph Construction
; CHECK-NEXT: Globals Alias Analysis
; CHECK-NEXT: Call Graph SCC Pass Manager
; CHECK-NEXT: Remove unused exception handling info
; CHECK-NEXT: Function Integration/Inlining
; CHECK-NEXT: Deduce function attributes
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: SROA
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Memory SSA
; CHECK-NEXT: Early CSE w/ MemorySSA
; CHECK-NEXT: Speculatively execute instructions if target has divergent branches
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Lazy Value Information Analysis
; CHECK-NEXT: Jump Threading
; CHECK-NEXT: Value Propagation
; CHECK-NEXT: Simplify the CFG
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Natural Loop Information
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Combine redundant instructions
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Tail Call Elimination
; CHECK-NEXT: Simplify the CFG
; CHECK-NEXT: Reassociate expressions
; CHECK-NEXT: Dominator Tree Construction
; 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
; CHECK-NEXT: Loop Invariant Code Motion
; CHECK-NEXT: Unswitch loops
; CHECK-NEXT: Simplify the CFG
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Natural Loop Information
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Combine redundant instructions
; CHECK-NEXT: Canonicalize natural loops
; CHECK-NEXT: LCSSA Verifier
; CHECK-NEXT: Loop-Closed SSA Form Pass
; CHECK-NEXT: Scalar Evolution Analysis
; CHECK-NEXT: Loop Pass Manager
; CHECK-NEXT: Induction Variable Simplification
; CHECK-NEXT: Recognize loop idioms
; CHECK-NEXT: Delete dead loops
; CHECK-NEXT: Unroll loops
; CHECK-NEXT: MergedLoadStoreMotion
; CHECK-NEXT: Phi Values Analysis
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Memory Dependence Analysis
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Global Value Numbering
; CHECK-NEXT: Phi Values Analysis
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Memory Dependence Analysis
; CHECK-NEXT: MemCpy Optimization
; CHECK-NEXT: Sparse Conditional Constant Propagation
; CHECK-NEXT: Demanded bits analysis
; CHECK-NEXT: Bit-Tracking Dead Code Elimination
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Natural Loop Information
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Combine redundant instructions
; CHECK-NEXT: Lazy Value Information Analysis
; CHECK-NEXT: Jump Threading
; CHECK-NEXT: Value Propagation
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Phi Values Analysis
; CHECK-NEXT: Memory Dependence Analysis
; CHECK-NEXT: Dead Store Elimination
; 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
; CHECK-NEXT: Post-Dominator Tree Construction
; CHECK-NEXT: Aggressive Dead Code Elimination
; CHECK-NEXT: Simplify the CFG
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Natural Loop Information
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Combine redundant instructions
; CHECK-NEXT: A No-Op Barrier Pass
; CHECK-NEXT: Eliminate Available Externally Globals
; CHECK-NEXT: CallGraph Construction
; CHECK-NEXT: Deduce function attributes in RPO
; CHECK-NEXT: Global Variable Optimizer
; CHECK-NEXT: Unnamed pass: implement Pass::getPassName()
; CHECK-NEXT: Dead Global Elimination
; CHECK-NEXT: CallGraph Construction
; CHECK-NEXT: Globals Alias Analysis
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Float to int
; CHECK-NEXT: Dominator Tree Construction
; 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
; CHECK-NEXT: Loop Access Analysis
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Loop Distribution
; CHECK-NEXT: Branch Probability Analysis
; CHECK-NEXT: Block Frequency Analysis
; CHECK-NEXT: Scalar Evolution Analysis
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Loop Access Analysis
; CHECK-NEXT: Demanded bits analysis
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Loop Vectorization
; CHECK-NEXT: Canonicalize natural loops
; CHECK-NEXT: Scalar Evolution Analysis
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Loop Access Analysis
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Loop Load Elimination
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Combine redundant instructions
; CHECK-NEXT: Simplify the CFG
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Natural Loop Information
; CHECK-NEXT: Scalar Evolution Analysis
; CHECK-NEXT: Basic Alias Analysis (stateless AA impl)
; CHECK-NEXT: Function Alias Analysis Results
; CHECK-NEXT: Demanded bits analysis
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: SLP Vectorizer
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Combine redundant instructions
; CHECK-NEXT: Canonicalize natural loops
; CHECK-NEXT: LCSSA Verifier
; CHECK-NEXT: Loop-Closed SSA Form Pass
; CHECK-NEXT: Scalar Evolution Analysis
; CHECK-NEXT: Loop Pass Manager
; CHECK-NEXT: Unroll loops
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Combine redundant instructions
; CHECK-NEXT: Canonicalize natural loops
; CHECK-NEXT: LCSSA Verifier
; CHECK-NEXT: Loop-Closed SSA Form Pass
; CHECK-NEXT: Scalar Evolution Analysis
; CHECK-NEXT: Loop Pass Manager
; CHECK-NEXT: Loop Invariant Code Motion
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Warn about non-applied transformations
; CHECK-NEXT: Alignment from assumptions
; CHECK-NEXT: Strip Unused Function Prototypes
; CHECK-NEXT: Dead Global Elimination
; CHECK-NEXT: Merge Duplicate Global Constants
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Natural Loop Information
; CHECK-NEXT: Branch Probability Analysis
; CHECK-NEXT: Block Frequency Analysis
; 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: Block Frequency Analysis
; CHECK-NEXT: Loop Pass Manager
; CHECK-NEXT: Loop Sink
; CHECK-NEXT: Lazy Branch Probability Analysis
; CHECK-NEXT: Lazy Block Frequency Analysis
; CHECK-NEXT: Optimization Remark Emitter
; CHECK-NEXT: Remove redundant instructions
; CHECK-NEXT: Hoist/decompose integer division and remainder
; CHECK-NEXT: Simplify the CFG
; CHECK-NEXT: Module Verifier
; CHECK-NEXT: Bitcode Writer
; CHECK-NEXT: Pass Arguments:
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Pass Arguments:
; CHECK-NEXT: Target Library Information
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Natural Loop Information
; CHECK-NEXT: Branch Probability Analysis
; CHECK-NEXT: Block Frequency Analysis
; CHECK-NEXT: Pass Arguments:
; CHECK-NEXT: Target Library Information
; CHECK-NEXT: FunctionPass Manager
; CHECK-NEXT: Dominator Tree Construction
; CHECK-NEXT: Natural Loop Information
; CHECK-NEXT: Branch Probability Analysis
; CHECK-NEXT: Block Frequency Analysis
define void @f() {
ret void
}