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assert(0) -> LLVM_UNREACHABLE.

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Make llvm_unreachable take an optional string, thus moving the cerr<< out of
line.
LLVM_UNREACHABLE is now a simple wrapper that makes the message go away for
NDEBUG builds.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75379 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Torok Edwin
2009-07-11 20:10:48 +00:00
parent d51ffcf303
commit c25e7581b9
153 changed files with 695 additions and 610 deletions
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11
lib/VMCore/ConstantFold.cpp
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@ -26,6 +26,7 @@
#include "llvm/GlobalAlias.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/Support/Compiler.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/GetElementPtrTypeIterator.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MathExtras.h"
@ -306,7 +307,7 @@ Constant *llvm::ConstantFoldCastInstruction(unsigned opc, const Constant *V,
break;
}
assert(0 && "Failed to cast constant expression");
LLVM_UNREACHABLE("Failed to cast constant expression");
return 0;
}
@ -1304,7 +1305,7 @@ Constant *llvm::ConstantFoldCompareInstruction(unsigned short pred,
APInt V1 = cast<ConstantInt>(C1)->getValue();
APInt V2 = cast<ConstantInt>(C2)->getValue();
switch (pred) {
default: assert(0 && "Invalid ICmp Predicate"); return 0;
default: LLVM_UNREACHABLE("Invalid ICmp Predicate"); return 0;
case ICmpInst::ICMP_EQ: return ConstantInt::get(Type::Int1Ty, V1 == V2);
case ICmpInst::ICMP_NE: return ConstantInt::get(Type::Int1Ty, V1 != V2);
case ICmpInst::ICMP_SLT:return ConstantInt::get(Type::Int1Ty, V1.slt(V2));
@ -1321,7 +1322,7 @@ Constant *llvm::ConstantFoldCompareInstruction(unsigned short pred,
APFloat C2V = cast<ConstantFP>(C2)->getValueAPF();
APFloat::cmpResult R = C1V.compare(C2V);
switch (pred) {
default: assert(0 && "Invalid FCmp Predicate"); return 0;
default: LLVM_UNREACHABLE("Invalid FCmp Predicate"); return 0;
case FCmpInst::FCMP_FALSE: return ConstantInt::getFalse();
case FCmpInst::FCMP_TRUE: return ConstantInt::getTrue();
case FCmpInst::FCMP_UNO:
@ -1377,7 +1378,7 @@ Constant *llvm::ConstantFoldCompareInstruction(unsigned short pred,
if (C1->getType()->isFloatingPoint()) {
int Result = -1; // -1 = unknown, 0 = known false, 1 = known true.
switch (evaluateFCmpRelation(C1, C2)) {
default: assert(0 && "Unknown relation!");
default: LLVM_UNREACHABLE("Unknown relation!");
case FCmpInst::FCMP_UNO:
case FCmpInst::FCMP_ORD:
case FCmpInst::FCMP_UEQ:
@ -1436,7 +1437,7 @@ Constant *llvm::ConstantFoldCompareInstruction(unsigned short pred,
// Evaluate the relation between the two constants, per the predicate.
int Result = -1; // -1 = unknown, 0 = known false, 1 = known true.
switch (evaluateICmpRelation(C1, C2, CmpInst::isSigned(pred))) {
default: assert(0 && "Unknown relational!");
default: LLVM_UNREACHABLE("Unknown relational!");
case ICmpInst::BAD_ICMP_PREDICATE:
break; // Couldn't determine anything about these constants.
case ICmpInst::ICMP_EQ: // We know the constants are equal!