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| author | Michal Terepeta <michal.terepeta@gmail.com> | 2015-08-03 08:41:13 +0200 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2015-08-03 08:41:32 +0200 |
| commit | 92f5385d8b2be50848a2496199a481f299f4b53a (patch) | |
| tree | e335893d9ff65b3df9f34dd5191b7a785eeeabfb /compiler/codeGen | |
| parent | 37227d3400549c2a6844dfb8c34c0738edc69ecc (diff) | |
| download | haskell-92f5385d8b2be50848a2496199a481f299f4b53a.tar.gz | |
Support MO_U_QuotRem2 in LLVM backend
This adds support for MO_U_QuotRem2 in LLVM backend. Similarly to
MO_U_Mul2 we use the standard LLVM instructions (in this case 'udiv'
and 'urem') but do the computation on double the word width (e.g., for
64-bit we will do them on 128 registers).
Test Plan: validate
Reviewers: rwbarton, austin, bgamari
Reviewed By: bgamari
Subscribers: thomie
Differential Revision: https://phabricator.haskell.org/D1100
GHC Trac Issues: #9430
Diffstat (limited to 'compiler/codeGen')
| -rw-r--r-- | compiler/codeGen/StgCmmPrim.hs | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/compiler/codeGen/StgCmmPrim.hs b/compiler/codeGen/StgCmmPrim.hs index 243e2a32ac..d201eaf20b 100644 --- a/compiler/codeGen/StgCmmPrim.hs +++ b/compiler/codeGen/StgCmmPrim.hs @@ -808,7 +808,8 @@ callishPrimOpSupported dflags op WordQuotRemOp | ncg && x86ish -> Left (MO_U_QuotRem (wordWidth dflags)) | otherwise -> Right (genericWordQuotRemOp dflags) - WordQuotRem2Op | ncg && x86ish -> Left (MO_U_QuotRem2 (wordWidth dflags)) + WordQuotRem2Op | (ncg && x86ish) + || llvm -> Left (MO_U_QuotRem2 (wordWidth dflags)) | otherwise -> Right (genericWordQuotRem2Op dflags) WordAdd2Op | (ncg && x86ish) |