StackOverflow Questions for Tag: fast-math

Petrusion

Reputation: 1181

Is there a way to tell the compiler to compile with "fast-math" or something similar in C#?

c#optimizationcompilationfloating-pointfast-math

Score: 1

Answers: 0

Hartmut Pfitzinger

Reputation: 2306

Where is the source of imprecise calculation in the assembler code of gcc -Ofast compared with -O3?

cassemblygccx86-64fast-math

Score: 3

Answers: 2

Chris_F

Reputation: 5567

Why does GCC or Clang not optimise reciprocal to 1 instruction when using fast-math

c++ssecompiler-optimizationsimdfast-math

Score: 17

Answers: 2

Martin

Reputation: 29

Can this piece of code be modified such that it works with fast-math enabled?

c++gccoptimizationfast-math

Score: -1

Answers: 2

lionel

Reputation: 425

What does the "denormal input" exactly mean in assembly when we consider using DAZ flag for SSE Floating Points

floating-pointsseinstructionsfast-mathdenormal-numbers

Score: 2

Answers: 1

tommsch

Reputation: 688

host device functions calling overloaded functions

cudaoverloadingfast-math

Score: 0

Answers: 1

xis

Reputation: 24860

Why doesn't GCC optimize aaaaaa to (aaa)(aaa)?

gccassemblyfloating-pointcompiler-optimizationfast-math

Score: 2322

Answers: 12

yong

Reputation: 3633

How do I compile with "ffast-math"?

rustllvmfast-mathllvm-codegen

Score: 21

Answers: 2

user10150539

Reputation:

Optimal implementation of iterative Kahan summation

c++x86-64sseinline-assemblyfast-math

Score: 7

Answers: 1

Marc

Reputation: 776

Flag to generate 'deterministic' floating point operations wrt. pointer alignment with 'fast-math'?

cgccmemory-alignmentfast-math

Score: 4

Answers: 0

stgtscc

Reputation: 990

Good sentinel value for double if prefer to use -ffast-math

coptimizationdoublenanfast-math

Score: 10

Answers: 1

spraff

Reputation: 33445

Does GCC's ffast-math have consistency guarantees across platforms or compiler versions?

gccieee-754fast-math

Score: 1

Answers: 1

Zachary Burns

Reputation: 483

Do denormal flags like Denormals-Are-Zero (DAZ) affect comparisons for equality?

x86floating-pointssex87fast-math

Score: 7

Answers: 1

PST

Reputation: 59

Does gcc -Ofast enable vectorization?

gccoptimizationvectorizationauto-vectorizationfast-math

Score: 1

Answers: 0

Matthias

Reputation: 4677

Is there a -ffast-math flag equivalent for the Visual Studio C++ compiler

gccvisual-studio-2013compiler-optimizationfast-math

Score: 11

Answers: 2

Timmmm

Reputation: 97138

Strict aliasing, -ffast-math and SSE

c++clangssestrict-aliasingfast-math

Score: 14

Answers: 1

ijklr

Reputation: 291

Why is std::inner_product slower than the naive implementation?

c++floating-pointssenumericfast-math

Score: 3

Answers: 1

Michael

Reputation: 5949

Dynamic -ffast-math

cperformancegccoptimizationfast-math

Score: 6

Answers: 2

celavek

Reputation: 5715

gcc optimizations cause app to fail

c++gcccompiler-optimizationfast-math

Score: 1

Answers: 4

einpoklum

Reputation: 132350

Can I make my compiler use fast-math on a per-function basis?

gccfloating-pointnvccfast-mathtemplate-instantiation

Score: 8

Answers: 2

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StackOverflow Questions for Tag: fast-math

Is there a way to tell the compiler to compile with &quot;fast-math&quot; or something similar in C#?

Where is the source of imprecise calculation in the assembler code of gcc -Ofast compared with -O3?

Why does GCC or Clang not optimise reciprocal to 1 instruction when using fast-math

Can this piece of code be modified such that it works with fast-math enabled?

What does the &quot;denormal input&quot; exactly mean in assembly when we consider using DAZ flag for SSE Floating Points

__host__ __device__ functions calling overloaded functions

Why doesn&#39;t GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?

How do I compile with &quot;ffast-math&quot;?

Optimal implementation of iterative Kahan summation

Flag to generate &#39;deterministic&#39; floating point operations wrt. pointer alignment with &#39;fast-math&#39;?

Good sentinel value for double if prefer to use -ffast-math

Does GCC&#39;s ffast-math have consistency guarantees across platforms or compiler versions?

Do denormal flags like Denormals-Are-Zero (DAZ) affect comparisons for equality?

Does gcc -Ofast enable vectorization?

Is there a -ffast-math flag equivalent for the Visual Studio C++ compiler

Strict aliasing, -ffast-math and SSE

Why is std::inner_product slower than the naive implementation?

Dynamic -ffast-math

gcc optimizations cause app to fail

Can I make my compiler use fast-math on a per-function basis?

Is there a way to tell the compiler to compile with "fast-math" or something similar in C#?

What does the "denormal input" exactly mean in assembly when we consider using DAZ flag for SSE Floating Points

host device functions calling overloaded functions

Why doesn't GCC optimize aaaaaa to (aaa)(aaa)?

How do I compile with "ffast-math"?

Flag to generate 'deterministic' floating point operations wrt. pointer alignment with 'fast-math'?

Does GCC's ffast-math have consistency guarantees across platforms or compiler versions?