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Clang Optimisations at -O1
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
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