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[C API] PR19859: Add LLVMGetFCmpPredicate and LLVMConstRealGetDouble.

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Patch by Gabriel Radanne <drupyog@zoho.com>.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220814 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Peter Zotov
2014-10-28 19:46:44 +00:00
parent 586cf3d88d
commit 437b107671
2 changed files with 49 additions and 1 deletions
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32
lib/IR/Core.cpp
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@ -774,6 +774,27 @@ long long LLVMConstIntGetSExtValue(LLVMValueRef ConstantVal) {
return unwrap<ConstantInt>(ConstantVal)->getSExtValue();
}
double LLVMConstRealGetDouble(LLVMValueRef ConstantVal, LLVMBool *LosesInfo) {
ConstantFP *cFP = unwrap<ConstantFP>(ConstantVal) ;
Type *Ty = cFP->getType();
if (Ty->isFloatTy()) {
*LosesInfo = false;
return cFP->getValueAPF().convertToFloat();
}
if (Ty->isDoubleTy()) {
*LosesInfo = false;
return cFP->getValueAPF().convertToDouble();
}
bool APFLosesInfo;
APFloat APF = cFP->getValueAPF();
APF.convert(APFloat::IEEEdouble, APFloat::rmNearestTiesToEven, &APFLosesInfo);
*LosesInfo = APFLosesInfo;
return APF.convertToDouble();
}
/*--.. Operations on composite constants ...................................--*/
LLVMValueRef LLVMConstStringInContext(LLVMContextRef C, const char *Str,
@ -1882,6 +1903,15 @@ LLVMIntPredicate LLVMGetICmpPredicate(LLVMValueRef Inst) {
return (LLVMIntPredicate)0;
}
LLVMRealPredicate LLVMGetFCmpPredicate(LLVMValueRef Inst) {
if (FCmpInst *I = dyn_cast<FCmpInst>(unwrap(Inst)))
return (LLVMRealPredicate)I->getPredicate();
if (ConstantExpr *CE = dyn_cast<ConstantExpr>(unwrap(Inst)))
if (CE->getOpcode() == Instruction::FCmp)
return (LLVMRealPredicate)CE->getPredicate();
return (LLVMRealPredicate)0;
}
LLVMOpcode LLVMGetInstructionOpcode(LLVMValueRef Inst) {
if (Instruction *C = dyn_cast<Instruction>(unwrap(Inst)))
return map_to_llvmopcode(C->getOpcode());
@ -2342,7 +2372,7 @@ static AtomicOrdering mapFromLLVMOrdering(LLVMAtomicOrdering Ordering) {
case LLVMAtomicOrderingSequentiallyConsistent:
return SequentiallyConsistent;
}
llvm_unreachable("Invalid LLVMAtomicOrdering value!");
}