mirror of
https://github.com/golang/go
synced 2024-11-22 18:14:42 -07:00
cmd/compile: generate makemap calls with int arguments
Where possible generate calls to runtime makemap with int hint argument during compile time instead of makemap with int64 hint argument. This eliminates converting the hint argument for calls to makemap with int64 hint argument for platforms where int64 values do not fit into an argument of type int. A similar optimization for makeslice was introduced in CL golang.org/cl/27851. 386: name old time/op new time/op delta NewEmptyMap 53.5ns ± 5% 41.9ns ± 5% -21.56% (p=0.000 n=10+10) NewSmallMap 182ns ± 1% 165ns ± 1% -8.92% (p=0.000 n=10+10) Change-Id: Ibd2b4c57b36f171b173bf7a0602b3a59771e6e44 Reviewed-on: https://go-review.googlesource.com/55142 Reviewed-by: Keith Randall <khr@golang.org>
This commit is contained in:
Martin Möhrmann
parent
0fb0f575bc
commit
cbc4e5d9c4
@ -72,83 +72,84 @@ var runtimeDecls = [...]struct {
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{"panicnildottype", funcTag, 55},
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{"ifaceeq", funcTag, 58},
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{"efaceeq", funcTag, 58},
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{"makemap", funcTag, 60},
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{"mapaccess1", funcTag, 61},
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{"mapaccess1_fast32", funcTag, 62},
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{"mapaccess1_fast64", funcTag, 62},
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{"mapaccess1_faststr", funcTag, 62},
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{"mapaccess1_fat", funcTag, 63},
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{"mapaccess2", funcTag, 64},
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{"mapaccess2_fast32", funcTag, 65},
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{"mapaccess2_fast64", funcTag, 65},
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{"mapaccess2_faststr", funcTag, 65},
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{"mapaccess2_fat", funcTag, 66},
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{"mapassign", funcTag, 61},
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{"mapassign_fast32", funcTag, 62},
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{"mapassign_fast64", funcTag, 62},
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{"mapassign_faststr", funcTag, 62},
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{"mapiterinit", funcTag, 67},
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{"mapdelete", funcTag, 67},
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{"mapdelete_fast32", funcTag, 68},
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{"mapdelete_fast64", funcTag, 68},
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{"mapdelete_faststr", funcTag, 68},
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{"mapiternext", funcTag, 69},
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{"makechan64", funcTag, 71},
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{"makechan", funcTag, 72},
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{"chanrecv1", funcTag, 74},
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{"chanrecv2", funcTag, 75},
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{"chansend1", funcTag, 77},
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{"makemap64", funcTag, 60},
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{"makemap", funcTag, 61},
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{"mapaccess1", funcTag, 62},
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{"mapaccess1_fast32", funcTag, 63},
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{"mapaccess1_fast64", funcTag, 63},
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{"mapaccess1_faststr", funcTag, 63},
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{"mapaccess1_fat", funcTag, 64},
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{"mapaccess2", funcTag, 65},
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{"mapaccess2_fast32", funcTag, 66},
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{"mapaccess2_fast64", funcTag, 66},
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{"mapaccess2_faststr", funcTag, 66},
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{"mapaccess2_fat", funcTag, 67},
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{"mapassign", funcTag, 62},
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{"mapassign_fast32", funcTag, 63},
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{"mapassign_fast64", funcTag, 63},
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{"mapassign_faststr", funcTag, 63},
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{"mapiterinit", funcTag, 68},
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{"mapdelete", funcTag, 68},
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{"mapdelete_fast32", funcTag, 69},
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{"mapdelete_fast64", funcTag, 69},
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{"mapdelete_faststr", funcTag, 69},
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{"mapiternext", funcTag, 70},
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{"makechan64", funcTag, 72},
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{"makechan", funcTag, 73},
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{"chanrecv1", funcTag, 75},
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{"chanrecv2", funcTag, 76},
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{"chansend1", funcTag, 78},
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{"closechan", funcTag, 23},
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{"writeBarrier", varTag, 79},
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{"writebarrierptr", funcTag, 80},
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{"typedmemmove", funcTag, 81},
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{"typedmemclr", funcTag, 82},
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{"typedslicecopy", funcTag, 83},
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{"selectnbsend", funcTag, 84},
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{"selectnbrecv", funcTag, 85},
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{"selectnbrecv2", funcTag, 87},
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{"newselect", funcTag, 88},
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{"selectsend", funcTag, 89},
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{"selectrecv", funcTag, 90},
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{"writeBarrier", varTag, 80},
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{"writebarrierptr", funcTag, 81},
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{"typedmemmove", funcTag, 82},
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{"typedmemclr", funcTag, 83},
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{"typedslicecopy", funcTag, 84},
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{"selectnbsend", funcTag, 85},
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{"selectnbrecv", funcTag, 86},
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{"selectnbrecv2", funcTag, 88},
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{"newselect", funcTag, 89},
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{"selectsend", funcTag, 90},
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{"selectrecv", funcTag, 91},
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{"selectdefault", funcTag, 55},
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{"selectgo", funcTag, 91},
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{"selectgo", funcTag, 92},
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{"block", funcTag, 5},
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{"makeslice", funcTag, 93},
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{"makeslice64", funcTag, 94},
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{"growslice", funcTag, 95},
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{"memmove", funcTag, 96},
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{"memclrNoHeapPointers", funcTag, 97},
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{"memclrHasPointers", funcTag, 97},
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{"memequal", funcTag, 98},
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{"memequal8", funcTag, 99},
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{"memequal16", funcTag, 99},
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{"memequal32", funcTag, 99},
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{"memequal64", funcTag, 99},
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{"memequal128", funcTag, 99},
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{"int64div", funcTag, 100},
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{"uint64div", funcTag, 101},
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{"int64mod", funcTag, 100},
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{"uint64mod", funcTag, 101},
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{"float64toint64", funcTag, 102},
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{"float64touint64", funcTag, 103},
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{"float64touint32", funcTag, 105},
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{"int64tofloat64", funcTag, 106},
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{"uint64tofloat64", funcTag, 107},
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{"uint32tofloat64", funcTag, 108},
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{"complex128div", funcTag, 109},
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{"racefuncenter", funcTag, 110},
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{"makeslice", funcTag, 94},
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{"makeslice64", funcTag, 95},
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{"growslice", funcTag, 96},
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{"memmove", funcTag, 97},
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{"memclrNoHeapPointers", funcTag, 98},
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{"memclrHasPointers", funcTag, 98},
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{"memequal", funcTag, 99},
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{"memequal8", funcTag, 100},
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{"memequal16", funcTag, 100},
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{"memequal32", funcTag, 100},
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{"memequal64", funcTag, 100},
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{"memequal128", funcTag, 100},
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{"int64div", funcTag, 101},
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{"uint64div", funcTag, 102},
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{"int64mod", funcTag, 101},
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{"uint64mod", funcTag, 102},
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{"float64toint64", funcTag, 103},
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{"float64touint64", funcTag, 104},
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{"float64touint32", funcTag, 106},
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{"int64tofloat64", funcTag, 107},
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{"uint64tofloat64", funcTag, 108},
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{"uint32tofloat64", funcTag, 109},
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{"complex128div", funcTag, 110},
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{"racefuncenter", funcTag, 111},
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{"racefuncexit", funcTag, 5},
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{"raceread", funcTag, 110},
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{"racewrite", funcTag, 110},
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{"racereadrange", funcTag, 111},
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{"racewriterange", funcTag, 111},
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{"msanread", funcTag, 111},
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{"msanwrite", funcTag, 111},
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{"raceread", funcTag, 111},
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{"racewrite", funcTag, 111},
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{"racereadrange", funcTag, 112},
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{"racewriterange", funcTag, 112},
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{"msanread", funcTag, 112},
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{"msanwrite", funcTag, 112},
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{"support_popcnt", varTag, 11},
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}
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func runtimeTypes() []*types.Type {
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var typs [112]*types.Type
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var typs [113]*types.Type
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typs[0] = types.Bytetype
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typs[1] = types.NewPtr(typs[0])
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typs[2] = types.Types[TANY]
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@ -210,56 +211,57 @@ func runtimeTypes() []*types.Type {
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typs[58] = functype(nil, []*Node{anonfield(typs[56]), anonfield(typs[57]), anonfield(typs[57])}, []*Node{anonfield(typs[11])})
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typs[59] = types.NewMap(typs[2], typs[2])
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typs[60] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[15]), anonfield(typs[3])}, []*Node{anonfield(typs[59])})
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typs[61] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3])}, []*Node{anonfield(typs[3])})
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typs[62] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[2])}, []*Node{anonfield(typs[3])})
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typs[63] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3]), anonfield(typs[1])}, []*Node{anonfield(typs[3])})
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typs[64] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3])}, []*Node{anonfield(typs[3]), anonfield(typs[11])})
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typs[65] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[2])}, []*Node{anonfield(typs[3]), anonfield(typs[11])})
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typs[66] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3]), anonfield(typs[1])}, []*Node{anonfield(typs[3]), anonfield(typs[11])})
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typs[67] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3])}, nil)
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typs[68] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[2])}, nil)
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typs[69] = functype(nil, []*Node{anonfield(typs[3])}, nil)
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typs[70] = types.NewChan(typs[2], types.Cboth)
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typs[71] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[15])}, []*Node{anonfield(typs[70])})
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typs[72] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[32])}, []*Node{anonfield(typs[70])})
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typs[73] = types.NewChan(typs[2], types.Crecv)
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typs[74] = functype(nil, []*Node{anonfield(typs[73]), anonfield(typs[3])}, nil)
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typs[75] = functype(nil, []*Node{anonfield(typs[73]), anonfield(typs[3])}, []*Node{anonfield(typs[11])})
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typs[76] = types.NewChan(typs[2], types.Csend)
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typs[77] = functype(nil, []*Node{anonfield(typs[76]), anonfield(typs[3])}, nil)
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typs[78] = types.NewArray(typs[0], 3)
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typs[79] = tostruct([]*Node{namedfield("enabled", typs[11]), namedfield("pad", typs[78]), namedfield("needed", typs[11]), namedfield("cgo", typs[11]), namedfield("alignme", typs[17])})
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typs[80] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[2])}, nil)
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typs[81] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[3]), anonfield(typs[3])}, nil)
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typs[82] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[3])}, nil)
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typs[83] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[2]), anonfield(typs[2])}, []*Node{anonfield(typs[32])})
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typs[84] = functype(nil, []*Node{anonfield(typs[76]), anonfield(typs[3])}, []*Node{anonfield(typs[11])})
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typs[85] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[73])}, []*Node{anonfield(typs[11])})
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typs[86] = types.NewPtr(typs[11])
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typs[87] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[86]), anonfield(typs[73])}, []*Node{anonfield(typs[11])})
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typs[88] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[15]), anonfield(typs[8])}, nil)
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typs[89] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[76]), anonfield(typs[3])}, nil)
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typs[90] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[73]), anonfield(typs[3]), anonfield(typs[86])}, nil)
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typs[91] = functype(nil, []*Node{anonfield(typs[1])}, []*Node{anonfield(typs[32])})
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typs[92] = types.NewSlice(typs[2])
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typs[93] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[32]), anonfield(typs[32])}, []*Node{anonfield(typs[92])})
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typs[94] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[15]), anonfield(typs[15])}, []*Node{anonfield(typs[92])})
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typs[95] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[92]), anonfield(typs[32])}, []*Node{anonfield(typs[92])})
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typs[96] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[3]), anonfield(typs[48])}, nil)
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typs[97] = functype(nil, []*Node{anonfield(typs[57]), anonfield(typs[48])}, nil)
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typs[98] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[3]), anonfield(typs[48])}, []*Node{anonfield(typs[11])})
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typs[99] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[3])}, []*Node{anonfield(typs[11])})
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typs[100] = functype(nil, []*Node{anonfield(typs[15]), anonfield(typs[15])}, []*Node{anonfield(typs[15])})
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typs[101] = functype(nil, []*Node{anonfield(typs[17]), anonfield(typs[17])}, []*Node{anonfield(typs[17])})
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typs[102] = functype(nil, []*Node{anonfield(typs[13])}, []*Node{anonfield(typs[15])})
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typs[103] = functype(nil, []*Node{anonfield(typs[13])}, []*Node{anonfield(typs[17])})
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typs[104] = types.Types[TUINT32]
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typs[105] = functype(nil, []*Node{anonfield(typs[13])}, []*Node{anonfield(typs[104])})
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typs[106] = functype(nil, []*Node{anonfield(typs[15])}, []*Node{anonfield(typs[13])})
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typs[107] = functype(nil, []*Node{anonfield(typs[17])}, []*Node{anonfield(typs[13])})
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typs[108] = functype(nil, []*Node{anonfield(typs[104])}, []*Node{anonfield(typs[13])})
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typs[109] = functype(nil, []*Node{anonfield(typs[19]), anonfield(typs[19])}, []*Node{anonfield(typs[19])})
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typs[110] = functype(nil, []*Node{anonfield(typs[48])}, nil)
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typs[111] = functype(nil, []*Node{anonfield(typs[48]), anonfield(typs[48])}, nil)
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typs[61] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[32]), anonfield(typs[3])}, []*Node{anonfield(typs[59])})
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typs[62] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3])}, []*Node{anonfield(typs[3])})
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typs[63] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[2])}, []*Node{anonfield(typs[3])})
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typs[64] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3]), anonfield(typs[1])}, []*Node{anonfield(typs[3])})
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typs[65] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3])}, []*Node{anonfield(typs[3]), anonfield(typs[11])})
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typs[66] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[2])}, []*Node{anonfield(typs[3]), anonfield(typs[11])})
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typs[67] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3]), anonfield(typs[1])}, []*Node{anonfield(typs[3]), anonfield(typs[11])})
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typs[68] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[3])}, nil)
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typs[69] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[59]), anonfield(typs[2])}, nil)
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typs[70] = functype(nil, []*Node{anonfield(typs[3])}, nil)
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typs[71] = types.NewChan(typs[2], types.Cboth)
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typs[72] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[15])}, []*Node{anonfield(typs[71])})
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typs[73] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[32])}, []*Node{anonfield(typs[71])})
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typs[74] = types.NewChan(typs[2], types.Crecv)
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typs[75] = functype(nil, []*Node{anonfield(typs[74]), anonfield(typs[3])}, nil)
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typs[76] = functype(nil, []*Node{anonfield(typs[74]), anonfield(typs[3])}, []*Node{anonfield(typs[11])})
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typs[77] = types.NewChan(typs[2], types.Csend)
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typs[78] = functype(nil, []*Node{anonfield(typs[77]), anonfield(typs[3])}, nil)
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typs[79] = types.NewArray(typs[0], 3)
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typs[80] = tostruct([]*Node{namedfield("enabled", typs[11]), namedfield("pad", typs[79]), namedfield("needed", typs[11]), namedfield("cgo", typs[11]), namedfield("alignme", typs[17])})
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typs[81] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[2])}, nil)
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typs[82] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[3]), anonfield(typs[3])}, nil)
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typs[83] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[3])}, nil)
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typs[84] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[2]), anonfield(typs[2])}, []*Node{anonfield(typs[32])})
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typs[85] = functype(nil, []*Node{anonfield(typs[77]), anonfield(typs[3])}, []*Node{anonfield(typs[11])})
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typs[86] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[74])}, []*Node{anonfield(typs[11])})
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typs[87] = types.NewPtr(typs[11])
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typs[88] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[87]), anonfield(typs[74])}, []*Node{anonfield(typs[11])})
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typs[89] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[15]), anonfield(typs[8])}, nil)
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typs[90] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[77]), anonfield(typs[3])}, nil)
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typs[91] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[74]), anonfield(typs[3]), anonfield(typs[87])}, nil)
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typs[92] = functype(nil, []*Node{anonfield(typs[1])}, []*Node{anonfield(typs[32])})
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typs[93] = types.NewSlice(typs[2])
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typs[94] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[32]), anonfield(typs[32])}, []*Node{anonfield(typs[93])})
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typs[95] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[15]), anonfield(typs[15])}, []*Node{anonfield(typs[93])})
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typs[96] = functype(nil, []*Node{anonfield(typs[1]), anonfield(typs[93]), anonfield(typs[32])}, []*Node{anonfield(typs[93])})
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typs[97] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[3]), anonfield(typs[48])}, nil)
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typs[98] = functype(nil, []*Node{anonfield(typs[57]), anonfield(typs[48])}, nil)
|
||||
typs[99] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[3]), anonfield(typs[48])}, []*Node{anonfield(typs[11])})
|
||||
typs[100] = functype(nil, []*Node{anonfield(typs[3]), anonfield(typs[3])}, []*Node{anonfield(typs[11])})
|
||||
typs[101] = functype(nil, []*Node{anonfield(typs[15]), anonfield(typs[15])}, []*Node{anonfield(typs[15])})
|
||||
typs[102] = functype(nil, []*Node{anonfield(typs[17]), anonfield(typs[17])}, []*Node{anonfield(typs[17])})
|
||||
typs[103] = functype(nil, []*Node{anonfield(typs[13])}, []*Node{anonfield(typs[15])})
|
||||
typs[104] = functype(nil, []*Node{anonfield(typs[13])}, []*Node{anonfield(typs[17])})
|
||||
typs[105] = types.Types[TUINT32]
|
||||
typs[106] = functype(nil, []*Node{anonfield(typs[13])}, []*Node{anonfield(typs[105])})
|
||||
typs[107] = functype(nil, []*Node{anonfield(typs[15])}, []*Node{anonfield(typs[13])})
|
||||
typs[108] = functype(nil, []*Node{anonfield(typs[17])}, []*Node{anonfield(typs[13])})
|
||||
typs[109] = functype(nil, []*Node{anonfield(typs[105])}, []*Node{anonfield(typs[13])})
|
||||
typs[110] = functype(nil, []*Node{anonfield(typs[19]), anonfield(typs[19])}, []*Node{anonfield(typs[19])})
|
||||
typs[111] = functype(nil, []*Node{anonfield(typs[48])}, nil)
|
||||
typs[112] = functype(nil, []*Node{anonfield(typs[48]), anonfield(typs[48])}, nil)
|
||||
return typs[:]
|
||||
}
|
||||
|
||||
@ -92,7 +92,8 @@ func ifaceeq(tab *uintptr, x, y unsafe.Pointer) (ret bool)
|
||||
func efaceeq(typ *uintptr, x, y unsafe.Pointer) (ret bool)
|
||||
|
||||
// *byte is really *runtime.Type
|
||||
func makemap(mapType *byte, hint int64, mapbuf *any) (hmap map[any]any)
|
||||
func makemap64(mapType *byte, hint int64, mapbuf *any) (hmap map[any]any)
|
||||
func makemap(mapType *byte, hint int, mapbuf *any) (hmap map[any]any)
|
||||
func mapaccess1(mapType *byte, hmap map[any]any, key *any) (val *any)
|
||||
func mapaccess1_fast32(mapType *byte, hmap map[any]any, key any) (val *any)
|
||||
func mapaccess1_fast64(mapType *byte, hmap map[any]any, key any) (val *any)
|
||||
|
||||
@ -1484,9 +1484,24 @@ opswitch:
|
||||
h = nodnil()
|
||||
}
|
||||
|
||||
fn := syslook("makemap")
|
||||
// When hint fits into int, use makemap instead of
|
||||
// makemap64, which is faster and shorter on 32 bit platforms.
|
||||
hint := n.Left
|
||||
fnname := "makemap64"
|
||||
argtype := types.Types[TINT64]
|
||||
|
||||
// Type checking guarantees that TIDEAL hint is positive and fits in an int.
|
||||
// See checkmake call in TMAP case of OMAKE case in OpSwitch in typecheck1 function.
|
||||
// The case of hint overflow when converting TUINT or TUINTPTR to TINT
|
||||
// will be handled by the negative range checks in makemap during runtime.
|
||||
if hint.Type.IsKind(TIDEAL) || maxintval[hint.Type.Etype].Cmp(maxintval[TUINT]) <= 0 {
|
||||
fnname = "makemap"
|
||||
argtype = types.Types[TINT]
|
||||
}
|
||||
|
||||
fn := syslook(fnname)
|
||||
fn = substArgTypes(fn, hmapType, t.Key(), t.Val())
|
||||
n = mkcall1(fn, n.Type, init, typename(n.Type), conv(n.Left, types.Types[TINT64]), h)
|
||||
n = mkcall1(fn, n.Type, init, typename(n.Type), conv(hint, argtype), h)
|
||||
|
||||
case OMAKESLICE:
|
||||
l := n.Left
|
||||
|
||||
@ -255,18 +255,25 @@ func (h *hmap) createOverflow() {
|
||||
}
|
||||
}
|
||||
|
||||
func makemap64(t *maptype, hint int64, h *hmap, bucket unsafe.Pointer) *hmap {
|
||||
if int64(int(hint)) != hint {
|
||||
hint = 0
|
||||
}
|
||||
return makemap(t, int(hint), h)
|
||||
}
|
||||
|
||||
// makemap implements a Go map creation make(map[k]v, hint)
|
||||
// If the compiler has determined that the map or the first bucket
|
||||
// can be created on the stack, h and/or bucket may be non-nil.
|
||||
// If h != nil, the map can be created directly in h.
|
||||
// If h.buckets != nil, bucket pointed to can be used as the first bucket.
|
||||
func makemap(t *maptype, hint int64, h *hmap) *hmap {
|
||||
func makemap(t *maptype, hint int, h *hmap) *hmap {
|
||||
if sz := unsafe.Sizeof(hmap{}); sz > 48 || sz != t.hmap.size {
|
||||
println("runtime: sizeof(hmap) =", sz, ", t.hmap.size =", t.hmap.size)
|
||||
throw("bad hmap size")
|
||||
}
|
||||
|
||||
if hint < 0 || hint > int64(maxSliceCap(t.bucket.size)) {
|
||||
if hint < 0 || hint > int(maxSliceCap(t.bucket.size)) {
|
||||
hint = 0
|
||||
}
|
||||
|
||||
@ -589,7 +596,7 @@ again:
|
||||
|
||||
// If we hit the max load factor or we have too many overflow buckets,
|
||||
// and we're not already in the middle of growing, start growing.
|
||||
if !h.growing() && (overLoadFactor(int64(h.count), h.B) || tooManyOverflowBuckets(h.noverflow, h.B)) {
|
||||
if !h.growing() && (overLoadFactor(h.count, h.B) || tooManyOverflowBuckets(h.noverflow, h.B)) {
|
||||
hashGrow(t, h)
|
||||
goto again // Growing the table invalidates everything, so try again
|
||||
}
|
||||
@ -920,7 +927,7 @@ func hashGrow(t *maptype, h *hmap) {
|
||||
// Otherwise, there are too many overflow buckets,
|
||||
// so keep the same number of buckets and "grow" laterally.
|
||||
bigger := uint8(1)
|
||||
if !overLoadFactor(int64(h.count), h.B) {
|
||||
if !overLoadFactor(h.count, h.B) {
|
||||
bigger = 0
|
||||
h.flags |= sameSizeGrow
|
||||
}
|
||||
@ -959,7 +966,7 @@ func hashGrow(t *maptype, h *hmap) {
|
||||
}
|
||||
|
||||
// overLoadFactor reports whether count items placed in 1<<B buckets is over loadFactor.
|
||||
func overLoadFactor(count int64, B uint8) bool {
|
||||
func overLoadFactor(count int, B uint8) bool {
|
||||
return count >= bucketCnt && uint64(count) >= loadFactorNum*((uint64(1)<<B)/loadFactorDen)
|
||||
}
|
||||
|
||||
@ -1168,7 +1175,7 @@ func ismapkey(t *_type) bool {
|
||||
|
||||
//go:linkname reflect_makemap reflect.makemap
|
||||
func reflect_makemap(t *maptype, cap int) *hmap {
|
||||
return makemap(t, int64(cap), nil)
|
||||
return makemap(t, cap, nil)
|
||||
}
|
||||
|
||||
//go:linkname reflect_mapaccess reflect.mapaccess
|
||||
|
||||
@ -462,7 +462,7 @@ again:
|
||||
|
||||
// If we hit the max load factor or we have too many overflow buckets,
|
||||
// and we're not already in the middle of growing, start growing.
|
||||
if !h.growing() && (overLoadFactor(int64(h.count), h.B) || tooManyOverflowBuckets(h.noverflow, h.B)) {
|
||||
if !h.growing() && (overLoadFactor(h.count, h.B) || tooManyOverflowBuckets(h.noverflow, h.B)) {
|
||||
hashGrow(t, h)
|
||||
goto again // Growing the table invalidates everything, so try again
|
||||
}
|
||||
@ -547,7 +547,7 @@ again:
|
||||
|
||||
// If we hit the max load factor or we have too many overflow buckets,
|
||||
// and we're not already in the middle of growing, start growing.
|
||||
if !h.growing() && (overLoadFactor(int64(h.count), h.B) || tooManyOverflowBuckets(h.noverflow, h.B)) {
|
||||
if !h.growing() && (overLoadFactor(h.count, h.B) || tooManyOverflowBuckets(h.noverflow, h.B)) {
|
||||
hashGrow(t, h)
|
||||
goto again // Growing the table invalidates everything, so try again
|
||||
}
|
||||
@ -637,7 +637,7 @@ again:
|
||||
|
||||
// If we hit the max load factor or we have too many overflow buckets,
|
||||
// and we're not already in the middle of growing, start growing.
|
||||
if !h.growing() && (overLoadFactor(int64(h.count), h.B) || tooManyOverflowBuckets(h.noverflow, h.B)) {
|
||||
if !h.growing() && (overLoadFactor(h.count, h.B) || tooManyOverflowBuckets(h.noverflow, h.B)) {
|
||||
hashGrow(t, h)
|
||||
goto again // Growing the table invalidates everything, so try again
|
||||
}
|
||||
|
||||
34
test/makemap.go
Normal file
34
test/makemap.go
Normal file
@ -0,0 +1,34 @@
|
||||
// errorcheck
|
||||
|
||||
// Copyright 2017 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Ensure that typed non-integer, negative and too large
|
||||
// values are not accepted as size argument in make for
|
||||
// maps.
|
||||
|
||||
package main
|
||||
|
||||
type T map[int]int
|
||||
|
||||
var sink T
|
||||
|
||||
func main() {
|
||||
sink = make(T, -1) // ERROR "negative size argument in make.*"
|
||||
sink = make(T, uint64(1<<63)) // ERROR "size argument too large in make.*"
|
||||
|
||||
sink = make(T, 0.5) // ERROR "constant 0.5 truncated to integer"
|
||||
sink = make(T, 1.0)
|
||||
sink = make(T, float32(1.0)) // ERROR "non-integer size argument in make.*"
|
||||
sink = make(T, float64(1.0)) // ERROR "non-integer size argument in make.*"
|
||||
sink = make(T, 1.0)
|
||||
sink = make(T, float32(1.0)) // ERROR "non-integer size argument in make.*"
|
||||
sink = make(T, float64(1.0)) // ERROR "non-integer size argument in make.*"
|
||||
sink = make(T, 1+0i)
|
||||
sink = make(T, complex64(1+0i)) // ERROR "non-integer size argument in make.*"
|
||||
sink = make(T, complex128(1+0i)) // ERROR "non-integer size argument in make.*"
|
||||
sink = make(T, 1+0i)
|
||||
sink = make(T, complex64(1+0i)) // ERROR "non-integer size argument in make.*"
|
||||
sink = make(T, complex128(1+0i)) // ERROR "non-integer size argument in make.*"
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user