diff options
Diffstat (limited to 'compiler/codeGen')
| -rw-r--r-- | compiler/codeGen/StgCmmPrim.hs | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/compiler/codeGen/StgCmmPrim.hs b/compiler/codeGen/StgCmmPrim.hs index 77739fe0fb..9e12427355 100644 --- a/compiler/codeGen/StgCmmPrim.hs +++ b/compiler/codeGen/StgCmmPrim.hs @@ -563,6 +563,20 @@ emitPrimOp _ [res] PopCnt32Op [w] = emitPopCntCall res w W32 emitPrimOp _ [res] PopCnt64Op [w] = emitPopCntCall res w W64 emitPrimOp dflags [res] PopCntOp [w] = emitPopCntCall res w (wordWidth dflags) +-- count leading zeros +emitPrimOp _ [res] Clz8Op [w] = emitClzCall res w W8 +emitPrimOp _ [res] Clz16Op [w] = emitClzCall res w W16 +emitPrimOp _ [res] Clz32Op [w] = emitClzCall res w W32 +emitPrimOp _ [res] Clz64Op [w] = emitClzCall res w W64 +emitPrimOp dflags [res] ClzOp [w] = emitClzCall res w (wordWidth dflags) + +-- count trailing zeros +emitPrimOp _ [res] Ctz8Op [w] = emitCtzCall res w W8 +emitPrimOp _ [res] Ctz16Op [w] = emitCtzCall res w W16 +emitPrimOp _ [res] Ctz32Op [w] = emitCtzCall res w W32 +emitPrimOp _ [res] Ctz64Op [w] = emitCtzCall res w W64 +emitPrimOp dflags [res] CtzOp [w] = emitCtzCall res w (wordWidth dflags) + -- Unsigned int to floating point conversions emitPrimOp _ [res] Word2FloatOp [w] = emitPrimCall [res] (MO_UF_Conv W32) [w] @@ -2096,3 +2110,17 @@ emitPopCntCall res x width = do [ res ] (MO_PopCnt width) [ x ] + +emitClzCall :: LocalReg -> CmmExpr -> Width -> FCode () +emitClzCall res x width = do + emitPrimCall + [ res ] + (MO_Clz width) + [ x ] + +emitCtzCall :: LocalReg -> CmmExpr -> Width -> FCode () +emitCtzCall res x width = do + emitPrimCall + [ res ] + (MO_Ctz width) + [ x ] |