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DMD Issue 3632 - modify float is float to do a bitwise compare

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This commit is contained in:
Alexey Prokhin
2011-09-15 12:04:13 +04:00
parent 3a0e3635a6
commit fb77c05dfd
6 changed files with 67 additions and 24 deletions
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41
gen/binops.cpp
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@@ -7,6 +7,7 @@
#include "gen/dvalue.h"
#include "gen/logger.h"
#include "gen/complex.h"
#include "gen/llvmhelpers.h"
//////////////////////////////////////////////////////////////////////////////
@@ -108,10 +109,7 @@ LLValue* DtoBinNumericEquals(Loc loc, DValue* lhs, DValue* rhs, TOK op)
assert(t->isfloating());
Logger::println("numeric equality");
LLValue* lv = lhs->getRVal();
LLValue* rv = rhs->getRVal();
LLValue* res = 0;
if (t->iscomplex())
{
Logger::println("complex");
@@ -120,11 +118,42 @@ LLValue* DtoBinNumericEquals(Loc loc, DValue* lhs, DValue* rhs, TOK op)
else if (t->isfloating())
{
Logger::println("floating");
res = (op == TOKidentity || op == TOKequal)
? gIR->ir->CreateFCmpOEQ(lv,rv,"tmp")
: gIR->ir->CreateFCmpUNE(lv,rv,"tmp");
res = DtoBinFloatsEquals(loc, lhs, rhs, op);
}
assert(res);
return res;
}
//////////////////////////////////////////////////////////////////////////////
LLValue* DtoBinFloatsEquals(Loc loc, DValue* lhs, DValue* rhs, TOK op)
{
LLValue* res = 0;
#if DMDV2
if (op == TOKequal) {
res = gIR->ir->CreateFCmpOEQ(lhs->getRVal(), rhs->getRVal(), "tmp");
} else if (op == TOKnotequal) {
res = gIR->ir->CreateFCmpUNE(lhs->getRVal(), rhs->getRVal(), "tmp");
} else {
llvm::ICmpInst::Predicate cmpop;
if (op == TOKidentity)
cmpop = llvm::ICmpInst::ICMP_EQ;
else
cmpop = llvm::ICmpInst::ICMP_NE;
LLValue* sz = DtoConstSize_t(getTypeStoreSize(DtoType(lhs->getType())));
LLValue* val = DtoMemCmp(makeLValue(loc, lhs), makeLValue(loc, rhs), sz);
res = gIR->ir->CreateICmp(cmpop, val, LLConstantInt::get(val->getType(), 0, false), "tmp");
}
#else
LLValue* lv = lhs->getRVal();
LLValue* rv = rhs->getRVal();
res = (op == TOKidentity || op == TOKequal) ?
gIR->ir->CreateFCmpOEQ(lv, rv, "tmp") :
gIR->ir->CreateFCmpUNE(lv, rv, "tmp");
#endif
assert(res);
return res;
}