From abcab28f9b96356c0db3315116e44af76d044970 Mon Sep 17 00:00:00 2001 From: Chandler Carruth Date: Mon, 29 Nov 2010 01:41:13 +0000 Subject: [PATCH] Add some dead stores to pacify my least favorite GCC warning: may be uninitialized. The warning is terrible, has incorrect source locations, and has a huge false positive rate such as *all* of these. If anyone has a better solution, please let me know. Alternatively, I'll happily add -Wno-uninitialized to the -Werror build mode. Maybe I can even do it *only* when building with GCC instead of Clang. llvm-svn: 120281 --- llvm/lib/Analysis/InstructionSimplify.cpp | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/llvm/lib/Analysis/InstructionSimplify.cpp b/llvm/lib/Analysis/InstructionSimplify.cpp index ac21a9ae20b6..87125191ad0e 100644 --- a/llvm/lib/Analysis/InstructionSimplify.cpp +++ b/llvm/lib/Analysis/InstructionSimplify.cpp @@ -298,7 +298,7 @@ static Value *SimplifyAndInst(Value *Op0, Value *Op1, const TargetData *TD, return Op0; // A & ~A = ~A & A = 0 - Value *A, *B; + Value *A = 0, *B = 0; if ((match(Op0, m_Not(m_Value(A))) && A == Op1) || (match(Op1, m_Not(m_Value(A))) && A == Op0)) return Constant::getNullValue(Op0->getType()); @@ -377,7 +377,7 @@ static Value *SimplifyOrInst(Value *Op0, Value *Op1, const TargetData *TD, return Op1; // A | ~A = ~A | A = -1 - Value *A, *B; + Value *A = 0, *B = 0; if ((match(Op0, m_Not(m_Value(A))) && A == Op1) || (match(Op1, m_Not(m_Value(A))) && A == Op0)) return Constant::getAllOnesValue(Op0->getType()); @@ -452,7 +452,7 @@ static Value *SimplifyXorInst(Value *Op0, Value *Op1, const TargetData *TD, return Constant::getNullValue(Op0->getType()); // A ^ ~A = ~A ^ A = -1 - Value *A, *B; + Value *A = 0, *B = 0; if ((match(Op0, m_Not(m_Value(A))) && A == Op1) || (match(Op1, m_Not(m_Value(A))) && A == Op0)) return Constant::getAllOnesValue(Op0->getType());