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| author | Simon Marlow <marlowsd@gmail.com> | 2018-02-18 11:09:19 -0500 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2018-02-18 11:57:45 -0500 |
| commit | c05529c2219d12ee950eb8972e1aca135cd8e032 (patch) | |
| tree | 557d1615f569d8448da5f3c0f96434d45e064a09 /compiler/codeGen | |
| parent | ccda4862102104e080a200e4d9c2ca8f42eb5b70 (diff) | |
| download | haskell-c05529c2219d12ee950eb8972e1aca135cd8e032.tar.gz | |
myThreadId# is trivial; make it an inline primop
The pattern `threadCapability =<< myThreadId` is used a lot in code
that uses `hs_try_putmvar`, I want to make it cheaper.
Test Plan: validate
Reviewers: bgamari, erikd
Reviewed By: bgamari
Subscribers: rwbarton, thomie, carter
Differential Revision: https://phabricator.haskell.org/D4381
Diffstat (limited to 'compiler/codeGen')
| -rw-r--r-- | compiler/codeGen/StgCmmPrim.hs | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/compiler/codeGen/StgCmmPrim.hs b/compiler/codeGen/StgCmmPrim.hs index 7661e9f8fb..b5cd267c6b 100644 --- a/compiler/codeGen/StgCmmPrim.hs +++ b/compiler/codeGen/StgCmmPrim.hs @@ -306,6 +306,9 @@ emitPrimOp dflags [res] GetCCSOfOp [arg] emitPrimOp _ [res] GetCurrentCCSOp [_dummy_arg] = emitAssign (CmmLocal res) cccsExpr +emitPrimOp _ [res] MyThreadIdOp [] + = emitAssign (CmmLocal res) currentTSOExpr + emitPrimOp dflags [res] ReadMutVarOp [mutv] = emitAssign (CmmLocal res) (cmmLoadIndexW dflags mutv (fixedHdrSizeW dflags) (gcWord dflags)) |