Clang Optimisations at -O1

gistfile1.txt

Pass Arguments:  -tti -targetlibinfo -tbaa -scoped-noalias -assumption-cache-tracker -verify -simplifycfg -domtree -sroa -early-cse -lower-expect
Target Transform Information
Target Library Information
Type-Based Alias Analysis
Scoped NoAlias Alias Analysis
Assumption Cache Tracker
  FunctionPass Manager
    Module Verifier
    Simplify the CFG
    Dominator Tree Construction
    SROA
    Early CSE
    Lower 'expect' Intrinsics
Pass Arguments:  -tti -targetlibinfo -tbaa -scoped-noalias -assumption-cache-tracker -profile-summary-info -forceattrs -inferattrs -ipsccp -globalopt -domtree -mem2reg -deadargelim -domtree -basicaa -aa -instcombine -simplifycfg -basiccg -globals-aa -prune-eh -always-inline -functionattrs -domtree -sroa -early-cse -domtree -basicaa -aa -lazy-value-info -jump-threading -correlated-propagation -simplifycfg -domtree -basicaa -aa -instcombine -libcalls-shrinkwrap -loops -branch-prob -block-freq -pgo-memop-opt -tailcallelim -simplifycfg -reassociate -domtree -loops -loop-simplify -lcssa-verification -lcssa -basicaa -aa -scalar-evolution -loop-rotate -licm -loop-unswitch -simplifycfg -domtree -basicaa -aa -instcombine -loops -loop-simplify -lcssa-verification -lcssa -scalar-evolution -indvars -loop-idiom -loop-deletion -memdep -memcpyopt -sccp -domtree -demanded-bits -bdce -basicaa -aa -instcombine -lazy-value-info -jump-threading -correlated-propagation -domtree -basicaa -aa -memdep -dse -loops -loop-simplify -lcssa-verification -lcssa -aa -scalar-evolution -licm -postdomtree -adce -simplifycfg -domtree -basicaa -aa -instcombine -barrier -basiccg -rpo-functionattrs -globals-aa -float2int -domtree -loops -loop-simplify -lcssa-verification -lcssa -basicaa -aa -scalar-evolution -loop-rotate -loop-accesses -lazy-branch-prob -lazy-block-freq -opt-remark-emitter -loop-distribute -branch-prob -block-freq -scalar-evolution -basicaa -aa -loop-accesses -demanded-bits -lazy-branch-prob -lazy-block-freq -opt-remark-emitter -loop-vectorize -loop-simplify -scalar-evolution -aa -loop-accesses -loop-load-elim -basicaa -aa -instcombine -latesimplifycfg -domtree -basicaa -aa -instcombine -loops -scalar-evolution -alignment-from-assumptions -strip-dead-prototypes -domtree -loops -branch-prob -block-freq -loop-simplify -lcssa-verification -lcssa -basicaa -aa -scalar-evolution -branch-prob -block-freq -loop-sink -lazy-branch-prob -lazy-block-freq -opt-remark-emitter -instsimplify -simplifycfg
Target Transform Information
Target Library Information
Type-Based Alias Analysis
Scoped NoAlias Alias Analysis
Assumption Cache Tracker
Profile summary info
  ModulePass Manager
    Force set function attributes
    Infer set function attributes
    Interprocedural Sparse Conditional Constant Propagation
    Global Variable Optimizer
      Unnamed pass: implement Pass::getPassName()
    FunctionPass Manager
      Dominator Tree Construction
      Promote Memory to Register
    Dead Argument Elimination
    FunctionPass Manager
      Dominator Tree Construction
      Basic Alias Analysis (stateless AA impl)
      Function Alias Analysis Results
      Combine redundant instructions
      Simplify the CFG
    CallGraph Construction
    Globals Alias Analysis
    Call Graph SCC Pass Manager
      Remove unused exception handling info
      Inliner for always_inline functions
      Deduce function attributes
      FunctionPass Manager
        Dominator Tree Construction
        SROA
        Early CSE
        Speculatively execute instructions if target has divergent branches
        Dominator Tree Construction
        Basic Alias Analysis (stateless AA impl)
        Function Alias Analysis Results
        Lazy Value Information Analysis
        Jump Threading
        Value Propagation
        Simplify the CFG
        Dominator Tree Construction
        Basic Alias Analysis (stateless AA impl)
        Function Alias Analysis Results
        Combine redundant instructions
        Conditionally eliminate dead library calls
        Natural Loop Information
        Branch Probability Analysis
        Block Frequency Analysis
        PGOMemOPSize
        Tail Call Elimination
        Simplify the CFG
        Reassociate expressions
        Dominator Tree Construction
        Natural Loop Information
        Canonicalize natural loops
        LCSSA Verifier
        Loop-Closed SSA Form Pass
        Basic Alias Analysis (stateless AA impl)
        Function Alias Analysis Results
        Scalar Evolution Analysis
        Loop Pass Manager
          Rotate Loops
          Loop Invariant Code Motion
          Unswitch loops
        Simplify the CFG
        Dominator Tree Construction
        Basic Alias Analysis (stateless AA impl)
        Function Alias Analysis Results
        Combine redundant instructions
        Natural Loop Information
        Canonicalize natural loops
        LCSSA Verifier
        Loop-Closed SSA Form Pass
        Scalar Evolution Analysis
        Loop Pass Manager
          Induction Variable Simplification
          Recognize loop idioms
          Delete dead loops
        Memory Dependence Analysis
        MemCpy Optimization
        Sparse Conditional Constant Propagation
        Dominator Tree Construction
        Demanded bits analysis
        Bit-Tracking Dead Code Elimination
        Basic Alias Analysis (stateless AA impl)
        Function Alias Analysis Results
        Combine redundant instructions
        Lazy Value Information Analysis
        Jump Threading
        Value Propagation
        Dominator Tree Construction
        Basic Alias Analysis (stateless AA impl)
        Function Alias Analysis Results
        Memory Dependence Analysis
        Dead Store Elimination
        Natural Loop Information
        Canonicalize natural loops
        LCSSA Verifier
        Loop-Closed SSA Form Pass
        Function Alias Analysis Results
        Scalar Evolution Analysis
        Loop Pass Manager
          Loop Invariant Code Motion
        Post-Dominator Tree Construction
        Aggressive Dead Code Elimination
        Simplify the CFG
        Dominator Tree Construction
        Basic Alias Analysis (stateless AA impl)
        Function Alias Analysis Results
        Combine redundant instructions
    A No-Op Barrier Pass
    CallGraph Construction
    Deduce function attributes in RPO
    Globals Alias Analysis
    FunctionPass Manager
      Float to int
      Dominator Tree Construction
      Natural Loop Information
      Canonicalize natural loops
      LCSSA Verifier
      Loop-Closed SSA Form Pass
      Basic Alias Analysis (stateless AA impl)
      Function Alias Analysis Results
      Scalar Evolution Analysis
      Loop Pass Manager
        Rotate Loops
      Loop Access Analysis
      Lazy Branch Probability Analysis
      Lazy Block Frequency Analysis
      Optimization Remark Emitter
      Loop Distribution
      Branch Probability Analysis
      Block Frequency Analysis
      Scalar Evolution Analysis
      Basic Alias Analysis (stateless AA impl)
      Function Alias Analysis Results
      Loop Access Analysis
      Demanded bits analysis
      Lazy Branch Probability Analysis
      Lazy Block Frequency Analysis
      Optimization Remark Emitter
      Loop Vectorization
      Canonicalize natural loops
      Scalar Evolution Analysis
      Function Alias Analysis Results
      Loop Access Analysis
      Loop Load Elimination
      Basic Alias Analysis (stateless AA impl)
      Function Alias Analysis Results
      Combine redundant instructions
      Simplify the CFG more aggressively
      Dominator Tree Construction
      Basic Alias Analysis (stateless AA impl)
      Function Alias Analysis Results
      Combine redundant instructions
      Natural Loop Information
      Scalar Evolution Analysis
      Alignment from assumptions
    Strip Unused Function Prototypes
    FunctionPass Manager
      Dominator Tree Construction
      Natural Loop Information
      Branch Probability Analysis
      Block Frequency Analysis
      Canonicalize natural loops
      LCSSA Verifier
      Loop-Closed SSA Form Pass
      Basic Alias Analysis (stateless AA impl)
      Function Alias Analysis Results
      Scalar Evolution Analysis
      Branch Probability Analysis
      Block Frequency Analysis
      Loop Pass Manager
        Loop Sink
      Lazy Branch Probability Analysis
      Lazy Block Frequency Analysis
      Optimization Remark Emitter
      Remove redundant instructions
      Simplify the CFG
    Print Module IR
Pass Arguments:  -domtree
  FunctionPass Manager
    Dominator Tree Construction
Pass Arguments:  -tti
Target Transform Information
  ModulePass Manager