diff options
| author | John Ky <newhoggy@gmail.com> | 2018-01-21 11:55:45 -0500 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2018-01-21 11:56:11 -0500 |
| commit | f855769690eb998ea25818ee794714957852af48 (patch) | |
| tree | 969d0c0bafa72929f5ec50f1794d51e6e1799840 /compiler/prelude | |
| parent | 5e8ea6a62e948bcc0da1279f06844fd1d8e979bd (diff) | |
| download | haskell-f855769690eb998ea25818ee794714957852af48.tar.gz | |
Add new mbmi and mbmi2 compiler flags
This adds support for the bit deposit and extraction operations provided
by the BMI and BMI2 instruction set extensions on modern amd64 machines.
Implement x86 code generator for pdep and pext. Properly initialise
bmiVersion field.
pdep and pext test cases
Fix pattern match for pdep and pext instructions
Fix build of pdep and pext code for 32-bit architectures
Test Plan: Validate
Reviewers: austin, simonmar, bgamari, angerman
Reviewed By: bgamari
Subscribers: trommler, carter, angerman, thomie, rwbarton, newhoggy
GHC Trac Issues: #14206
Differential Revision: https://phabricator.haskell.org/D4236
Diffstat (limited to 'compiler/prelude')
| -rw-r--r-- | compiler/prelude/primops.txt.pp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/compiler/prelude/primops.txt.pp b/compiler/prelude/primops.txt.pp index d8d7f6e3e1..43e8f535d3 100644 --- a/compiler/prelude/primops.txt.pp +++ b/compiler/prelude/primops.txt.pp @@ -403,6 +403,28 @@ primop PopCnt64Op "popCnt64#" GenPrimOp WORD64 -> Word# primop PopCntOp "popCnt#" Monadic Word# -> Word# {Count the number of set bits in a word.} +primop Pdep8Op "pdep8#" Dyadic Word# -> Word# -> Word# + {Deposit bits to lower 8 bits of a word at locations specified by a mask.} +primop Pdep16Op "pdep16#" Dyadic Word# -> Word# -> Word# + {Deposit bits to lower 16 bits of a word at locations specified by a mask.} +primop Pdep32Op "pdep32#" Dyadic Word# -> Word# -> Word# + {Deposit bits to lower 32 bits of a word at locations specified by a mask.} +primop Pdep64Op "pdep64#" GenPrimOp WORD64 -> WORD64 -> WORD64 + {Deposit bits to a word at locations specified by a mask.} +primop PdepOp "pdep#" Dyadic Word# -> Word# -> Word# + {Deposit bits to a word at locations specified by a mask.} + +primop Pext8Op "pext8#" Dyadic Word# -> Word# -> Word# + {Extract bits from lower 8 bits of a word at locations specified by a mask.} +primop Pext16Op "pext16#" Dyadic Word# -> Word# -> Word# + {Extract bits from lower 16 bits of a word at locations specified by a mask.} +primop Pext32Op "pext32#" Dyadic Word# -> Word# -> Word# + {Extract bits from lower 32 bits of a word at locations specified by a mask.} +primop Pext64Op "pext64#" GenPrimOp WORD64 -> WORD64 -> WORD64 + {Extract bits from a word at locations specified by a mask.} +primop PextOp "pext#" Dyadic Word# -> Word# -> Word# + {Extract bits from a word at locations specified by a mask.} + primop Clz8Op "clz8#" Monadic Word# -> Word# {Count leading zeros in the lower 8 bits of a word.} primop Clz16Op "clz16#" Monadic Word# -> Word# |