issue #60 JIT compile GETTABLE_S
Dibyendu Majumdar
9 years ago
parent
8b640c25fd
commit
f04c5febd6
@ -0,0 +1,38 @@
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#include "lua_hdr.h"
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#define LUA_TSTRING 4
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#define LUA_TSHRSTR (LUA_TSTRING | (0 << 4))
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#define checktag(o,t) (rttype(o) == (t))
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#define ctb(t) ((t) | BIT_ISCOLLECTABLE)
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#define cast(t, exp) ((t)(exp))
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#define lmod(s,size) \
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(cast(int, (s) & ((size)-1)))
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#define ttisshrstring(o) checktag((o), ctb(LUA_TSHRSTR))
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#define gco2ts(o) cast(struct TString *, (o))
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#define val_(o) ((o)->value_)
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#define tsvalue(o) gco2ts(val_(o).gc)
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#define gnode(t,i) (&(t)->node[i])
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#define gval(n) (&(n)->i_val)
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#define gkey(n) cast(const struct TValue*, (&(n)->i_key.tvk))
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#define twoto(x) (1<<(x))
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#define sizenode(t) (twoto((t)->lsizenode))
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#define hashpow2(t,n) (gnode(t, lmod((n), sizenode(t))))
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#define hashstr(t,str) hashpow2(t, (str)->hash)
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#define eqshrstr(a,b) ((a) == (b))
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extern const struct TValue *luaH_getstr (struct Table *t, struct TString *key);
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const struct TValue *ravi_getstr (struct Table *t, struct TString *key) {
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struct Node *n = hashstr(t, key);
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const struct TValue *k = gkey(n);
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if (ttisshrstring(k) && eqshrstr(tsvalue(k), key))
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return gval(n); /* that's it */
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return luaH_getstr(t, key);
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}
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@ -0,0 +1,75 @@
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; ModuleID = 'inline_getstr.c'
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target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-S32"
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target triple = "i686-pc-windows-gnu"
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%struct.TValue = type { %union.Value, i32 }
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%union.Value = type { i64 }
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%struct.Table = type { %struct.GCObject*, i8, i8, i8, i8, i32, %struct.TValue*, %struct.Node*, %struct.Node*, %struct.Table*, %struct.GCObject*, %struct.RaviArray }
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%struct.Node = type { %struct.TValue, %union.TKey }
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%union.TKey = type { %struct.anon.1 }
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%struct.anon.1 = type { %union.Value, i32, i32 }
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%struct.GCObject = type { %struct.GCObject*, i8, i8 }
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%struct.RaviArray = type { i8*, i32, i32, i32 }
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%struct.TString = type { %struct.GCObject*, i8, i8, i8, i8, i32, %union.anon.2 }
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%union.anon.2 = type { i64 }
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; Function Attrs: nounwind
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define %struct.TValue* @ravi_getstr(%struct.Table* %t, %struct.TString* %key) #0 {
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entry:
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%hash = getelementptr inbounds %struct.TString, %struct.TString* %key, i32 0, i32 5
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%0 = load i32, i32* %hash, align 4, !tbaa !1
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%lsizenode = getelementptr inbounds %struct.Table, %struct.Table* %t, i32 0, i32 4
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%1 = load i8, i8* %lsizenode, align 1, !tbaa !7
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%conv = zext i8 %1 to i32
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%shl = shl i32 1, %conv
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%sub = add nsw i32 %shl, -1
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%and = and i32 %sub, %0
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%node = getelementptr inbounds %struct.Table, %struct.Table* %t, i32 0, i32 7
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%2 = load %struct.Node*, %struct.Node** %node, align 4, !tbaa !10
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%3 = getelementptr inbounds %struct.Node, %struct.Node* %2, i32 %and, i32 1, i32 0, i32 1
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%4 = load i32, i32* %3, align 4, !tbaa !11
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%cmp = icmp eq i32 %4, 68
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br i1 %cmp, label %land.lhs.true, label %if.end
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land.lhs.true: ; preds = %entry
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%value_ = getelementptr inbounds %struct.Node, %struct.Node* %2, i32 %and, i32 1, i32 0, i32 0
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%5 = bitcast %union.Value* %value_ to %struct.TString**
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%6 = load %struct.TString*, %struct.TString** %5, align 4, !tbaa !13
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%cmp2 = icmp eq %struct.TString* %6, %key
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br i1 %cmp2, label %if.then, label %if.end
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if.then: ; preds = %land.lhs.true
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%i_val = getelementptr inbounds %struct.Node, %struct.Node* %2, i32 %and, i32 0
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br label %cleanup
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if.end: ; preds = %land.lhs.true, %entry
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%call = tail call %struct.TValue* @luaH_getstr(%struct.Table* %t, %struct.TString* %key) #2
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br label %cleanup
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cleanup: ; preds = %if.end, %if.then
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%retval.0 = phi %struct.TValue* [ %i_val, %if.then ], [ %call, %if.end ]
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ret %struct.TValue* %retval.0
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}
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declare %struct.TValue* @luaH_getstr(%struct.Table*, %struct.TString*) #1
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attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
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attributes #2 = { nounwind }
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!llvm.ident = !{!0}
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!0 = !{!"clang version 3.7.0 (trunk)"}
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!1 = !{!2, !6, i64 8}
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!2 = !{!"TString", !3, i64 0, !4, i64 4, !4, i64 5, !4, i64 6, !4, i64 7, !6, i64 8, !4, i64 16}
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!3 = !{!"any pointer", !4, i64 0}
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!4 = !{!"omnipotent char", !5, i64 0}
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!5 = !{!"Simple C/C++ TBAA"}
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!6 = !{!"int", !4, i64 0}
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!7 = !{!8, !4, i64 7}
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!8 = !{!"Table", !3, i64 0, !4, i64 4, !4, i64 5, !4, i64 6, !4, i64 7, !6, i64 8, !3, i64 12, !3, i64 16, !3, i64 20, !3, i64 24, !3, i64 28, !9, i64 32}
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!9 = !{!"RaviArray", !3, i64 0, !4, i64 4, !6, i64 8, !6, i64 12}
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!10 = !{!8, !3, i64 16}
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!11 = !{!12, !6, i64 8}
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!12 = !{!"TValue", !4, i64 0, !6, i64 8}
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!13 = !{!3, !3, i64 0}
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@ -1,4 +1,5 @@
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setlocal
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set PATH=%PATH%;"c:\Program Files (x86)\LLVM\bin"
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clang -cc1 -O1 -disable-llvm-optzns -S -emit-llvm %1
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rem clang -cc1 -O1 -disable-llvm-optzns -S -emit-llvm %1
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clang -cc1 -O2 -S -emit-llvm %1
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