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Fix a minor bug, implementing GCSE/call_pure_function.ll
Also, add some stuff I missed before. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12417 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -186,9 +186,8 @@ BasicAliasAnalysis::getModRefInfo(CallSite CS, Value *P, unsigned Size) {
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return NoModRef;
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}
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// If P points to a constant memory location, the call definitely could not
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// modify the memory location.
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return pointsToConstantMemory(P) ? Ref : ModRef;
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// The AliasAnalysis base class has some smarts, lets use them.
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return AliasAnalysis::getModRefInfo(CS, P, Size);
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}
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// alias - Provide a bunch of ad-hoc rules to disambiguate in common cases, such
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@ -597,12 +596,16 @@ static const char *DoesntAccessMemoryTable[] = {
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"sin", "sinf", "sinl", "sinh", "sinhf", "sinhl",
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"tan", "tanf", "tanl", "tanh", "tanhf", "tanhl",
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// ctype.h
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"isalnum", "isalpha", "iscntrl", "isdigit", "isgraph", "islower", "isprint"
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"ispunct", "isspace", "isupper", "isxdigit", "tolower", "toupper",
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// wctype.h"
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"iswalnum", "iswalpha", "iswcntrl", "iswdigit", "iswgraph", "iswlower",
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"iswprint", "iswpunct", "iswspace", "iswupper", "iswxdigit",
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"iswctype", "towctrans", "towlower", "towupper",
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"btowc", "wctob",
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};
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