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Diffstat (limited to 'docs/users_guide/using.rst')
| -rw-r--r-- | docs/users_guide/using.rst | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/docs/users_guide/using.rst b/docs/users_guide/using.rst index 420e2d3bfc..83eeb51eed 100644 --- a/docs/users_guide/using.rst +++ b/docs/users_guide/using.rst @@ -1088,6 +1088,16 @@ Some flags only make sense for particular target platforms. SSE4.2 if your processor supports it but detects this automatically so no flag is required. +.. ghc-flag:: -mbmi2 + :shortdesc: (x86 only) Use BMI2 for bit manipulation operations + :type: dynamic + :category: platform-options + + (x86 only, added in GHC 7.4.1) Use the BMI2 instruction set to + implement some bit operations when using the + :ref:`native code generator <native-code-gen>`. The resulting compiled + code will only run on processors that support BMI2 (Intel Haswell and newer, AMD Excavator, Zen and newer). + Miscellaneous flags ------------------- |