fast-math

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Why does -fno-signed-zeros have an effect on vectorization for minimum search?
user_81571870
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2
0
80
auto-vectorization fast-math x86 gcc c++
Where is the source of imprecise calculation in the assembler code of gcc -Ofast compared with -O3?
user_19865830
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2
2
152
fast-math x86-64 assembly gcc c
Do denormal flags like Denormals-Are-Zero (DAZ) affect comparisons for equality?
user_67483280
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6
1
438
x87 fast-math sse floating-point x86
Strict aliasing, -ffast-math and SSE
user_2655210
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14
1
2044
fast-math strict-aliasing clang sse c++
Why doesn't GCC optimize a*a*a*a*a*a to (a*a*a)*(a*a*a)?
user_1787320
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2266
12
225465
compiler-optimization fast-math floating-point assembly gcc
Negative NaN is not a NaN?
user_419830
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34
6
14344
fast-math nan c++
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