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Remove dead code. Improve llvm_unreachable text. Simplify some control flow.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@150918 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Ahmed Charles
2012-02-19 11:37:01 +00:00
parent d7ace3f8d1
commit b0934ab7d8
21 changed files with 24 additions and 138 deletions
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17
lib/VMCore/Instructions.cpp
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@@ -2559,9 +2559,8 @@ CastInst::getCastOpcode(
assert(DestBits == SrcBits &&
"Casting vector to floating point of different width");
return BitCast; // same size, no-op cast
} else {
llvm_unreachable("Casting pointer or non-first class to float");
}
llvm_unreachable("Casting pointer or non-first class to float");
} else if (DestTy->isVectorTy()) {
assert(DestBits == SrcBits &&
"Illegal cast to vector (wrong type or size)");
@@ -2571,24 +2570,16 @@ CastInst::getCastOpcode(
return BitCast; // ptr -> ptr
} else if (SrcTy->isIntegerTy()) {
return IntToPtr; // int -> ptr
} else {
llvm_unreachable("Casting pointer to other than pointer or int");
}
llvm_unreachable("Casting pointer to other than pointer or int");
} else if (DestTy->isX86_MMXTy()) {
if (SrcTy->isVectorTy()) {
assert(DestBits == SrcBits && "Casting vector of wrong width to X86_MMX");
return BitCast; // 64-bit vector to MMX
} else {
llvm_unreachable("Illegal cast to X86_MMX");
}
} else {
llvm_unreachable("Casting to type that is not first-class");
llvm_unreachable("Illegal cast to X86_MMX");
}
// If we fall through to here we probably hit an assertion cast above
// and assertions are not turned on. Anything we return is an error, so
// BitCast is as good a choice as any.
return BitCast;
llvm_unreachable("Casting to type that is not first-class");
}
//===----------------------------------------------------------------------===//